Light to moderate snow will continue into Saturday over the Great Lakes, Central Appalachians, and Northeast. This weekend into next week, a series of atmospheric rivers will bring gusty winds, periods of heavy rain, and mountain snow to northern California and the Pacific Northwest. Colder temperatures are in store for the weekend from the Great Lakes to East Coast. Read More >
Overview
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A moist and unusually unstable environment was in place on 6 July 2020. By midday, MLCAPE values exceeded 3000 J/kg with minimal convective inhibition as strong insolation occurred during the morning hours. Convection initiated just northwest of Philadelphia shortly after noon. With weak steering flow and a very buoyant low-level thermodynamic environment, updrafts rapidly deepened, generating severe, slow-moving thunderstorms. Additionally, outflow from the storms initiated subsequent convection in such a way that a long period of training occurred on the north and northwest side of the Philadelphia metropolitan area. With intense rain rates of 3+ inches per hour, rainfall accumulations of 3-6 inches occurred within a 2-hour period in southeast Montgomery and northern Philadelphia Counties. Severe flash flooding resulted, with dozens of vehicles stranded in water and multiple creeks and streams flooding within an hour. Additionally, the storms produced hail up to golf ball size in northern Philadelphia, Bucks, and Mercer Counties. With marginal deep-layer vertical shear but very steep low-level lapse rates, convective outflow spread from the initial storms in an annular pattern, initiating new convection that continued to spread out in this pattern through the afternoon. Widespread reports of wind damage and hail occurred with these storms, and isolated instances of flash flooding were reported where localized training developed. Morristown, New Jersey, was particularly hard hit, with several reports of wind damage and road closures from flash flooding. Eventually, more organized convection developed in Delmarva during the evening hours, with a bowing structure producing numerous reports of wind damage in eastern Maryland into far southwest Delaware. |
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Synoptic Overview at 12z 6 July 2020 (courtesy of SPC)
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| Figure 1: 250-mb analysis | Figure 2: 300-mb analysis | Figure 3: 500-mb analysis |
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| Figure 4: 700-mb analysis | Figure 5: 850-mb analysis | Figure 6: 925-mb analysis |
Synoptic Overview at 00z 7 July 2020 (courtesy of SPC)
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| Figure 7: 250-mb analysis | Figure 8: 300-mb analysis | Figure 9: 500-mb analysis |
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| Figure 10: 700-mb analysis | Figure 11: 850-mb analysis | Figure 12: 925-mb analysis |
Surface Maps (courtesy of WPC)
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| Figure 13: 12z surface map | Figure 14: 15z surface map | Figure 15: 18z surface map |
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| Figure 16: 21z surface map | Figure 17: 00z surface map | Figure 18: 03z surface map |
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| Figure 19: 12z Wallops Island, VA sounding | Figure 20: 12z Sterling, VA sounding | Figure 21: 12z Islip, NY sounding |
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| Figure 22: 00z Wallops Island, VA sounding | Figure 23: 00z Sterling, VA sounding | Figure 24: 00z Islip, NY sounding |
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| Figure 1: National Preliminary Reports 12z 6 July 2020 to 12z 7 July 2020 | Figure 2: Zoomed Preliminary Reports for the same period. | Figure 3: Prelim Reports vs. 1630z SPC Convective Outlook |
Click here for a county warning area based plot of local storm reports and warnings/advisories issued for the 6 July 2020 event.
NWUS51 KPHI 080058
LSRPHI
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
858 PM EDT TUE JUL 7 2020
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1240 PM HAIL 1 ESE MANAYUNK 40.02N 75.19W
07/06/2020 E0.25 INCH PHILADELPHIA PA PUBLIC
REPORT VIA SOCIAL MEDIA OF HAIL TO PEA SIZE
OR SLIGHTLY LARGER IN EAST FALLS
PHILADELPHIA.
1251 PM TSTM WND DMG RIVERSIDE 40.04N 74.96W
07/06/2020 BURLINGTON NJ UTILITY COMPANY
DOWNED WIRES NEAR RIVERSIDE TOWNSHIP HIGH
SCHOOL. TIME ESTIMATED FROM RADAR.
1255 PM HAIL NORTHEAST PHILADELPHIA 40.09N 75.02W
07/06/2020 E0.88 INCH PHILADELPHIA PA PUBLIC
REPORT VIA SOCIAL MEDIA WITH PHOTOS OF HAIL
UP TO ABOUT NICKEL SIZE.
1256 PM HAIL 1 ESE NORTHEAST PHILADE 40.08N 75.00W
07/06/2020 E0.75 INCH PHILADELPHIA PA PUBLIC
MPING REPORT.
0105 PM TSTM WND DMG ANDALUSIA 40.08N 74.97W
07/06/2020 PHILADELPHIA PA FIRE DEPT/RESCUE
TREE DOWN ON GREENDALE RD AT PARKDALE RD.
TIME ESTIMATED FROM RADAR.
0109 PM TSTM WND GST CROYDON 40.09N 74.90W
07/06/2020 NAN MPH BUCKS PA PUBLIC
WIRES DOWN ON BROOK DRIVE IN CROYDON.
0109 PM TSTM WND GST BRISTOL 40.10N 74.86W
07/06/2020 NAN MPH BUCKS PA PUBLIC
MPING REPORT OF WIRES DOWN ON CHESTER AVENUE
IN BRISTOL. TIME ESTIMATED FROM RADAR.
0110 PM HAIL 1 NNE LEVITTOWN 40.18N 74.88W
07/06/2020 E0.75 INCH BUCKS PA PUBLIC
REPORT VIA SOCIAL MEDIA.
0110 PM HAIL EDDINGTON 40.09N 74.95W
07/06/2020 E0.25 INCH BUCKS PA PUBLIC
REPORT VIA SOCIAL MEDIA.
0113 PM HAIL 1 NNE DOUGLASS TWP 40.33N 75.67W
07/06/2020 E0.25 INCH BERKS PA PUBLIC
MPING REPORT.
0115 PM HAIL BUSTLETON 40.08N 75.03W
07/06/2020 E0.25 INCH PHILADELPHIA PA PUBLIC
REPORT VIA SOCIAL MEDIA.
0115 PM HAIL BRISTOL 40.10N 74.86W
07/06/2020 M0.25 INCH BUCKS PA TRAINED SPOTTER
0115 PM HAIL PENNDEL 40.16N 74.91W
07/06/2020 E0.88 INCH BUCKS PA TRAINED SPOTTER
REPORT VIA SOCIAL MEDIA.
0115 PM TSTM WND DMG BRISTOL 40.10N 74.86W
07/06/2020 BUCKS PA FIRE DEPT/RESCUE
DOWNED WIRES ON MILL ST. TIME VERIFIED BY
RADAR.
0116 PM HAIL 1 NNE DOUGLASS TWP 40.33N 75.68W
07/06/2020 E0.50 INCH BERKS PA PUBLIC
MPING REPORT.
0118 PM TSTM WND DMG 1 SSW WYNCOTE 40.08N 75.15W
07/06/2020 MONTGOMERY PA COUNTY OFFICIAL
DOWNED TREE ON GREEN VALLEY ROAD NEAR
THORNBERRY ROAD IN WYNCOTE. TIME ESTIMATED
FROM RADAR.
0120 PM HAIL LEVITTOWN 40.16N 74.88W
07/06/2020 E1.25 INCH BUCKS PA TRAINED SPOTTER
HAIL OF A LITTLE OVER ONE INCH DIAMETER WITH
SOME BRANCHES SNAPPING FROM TREES.
0120 PM HAIL FAIRLESS HILLS 40.17N 74.85W
07/06/2020 E1.00 INCH BUCKS PA PUBLIC
REPORT VIA SOCIAL MEDIA.
0125 PM HAIL LEVITTOWN 40.16N 74.88W
07/06/2020 E1.75 INCH BUCKS PA PUBLIC
REPORT VIA SOCIAL MEDIA WITH PHOTOS OF HAIL
UP TO ABOUT GOLF BALL SIZE.
0126 PM HAIL FLORENCE 40.12N 74.81W
07/06/2020 E0.25 INCH BURLINGTON NJ PUBLIC
REPORT VIA SOCIAL MEDIA.
0126 PM TSTM WND DMG BALA CYNWYD 40.01N 75.25W
07/06/2020 MONTGOMERY PA COUNTY OFFICIAL
WIRES DOWN NEAR THE INTERSECTION OF BOWMAN
AVENUE AND LINDEN LANE. TIME ESTIMATED FROM
RADAR.
0128 PM HAIL GLENSIDE 40.10N 75.15W
07/06/2020 E0.75 INCH MONTGOMERY PA PUBLIC
MPING REPORT.
0129 PM TSTM WND DMG 1 ESE GLADWYNE 40.03N 75.26W
07/06/2020 MONTGOMERY PA COUNTY OFFICIAL
DOWNED TREE ON BOBARN DRIVE NEAR HAGYS FORD
ROAD IN GLADWYNE. TIME ESTIMATED FROM RADAR.
0129 PM HAIL BENSALEM 40.11N 74.93W
07/06/2020 E1.00 INCH BUCKS PA PUBLIC
SPOTTER NETWORK REPORT.
0135 PM HAIL LEVITTOWN 40.16N 74.89W
07/06/2020 E1.00 INCH BUCKS PA PUBLIC
REPORT VIA SOCIAL MEDIA WITH PHOTO.
0135 PM HAIL 1 S FLOURTOWN 40.10N 75.21W
07/06/2020 E1.00 INCH MONTGOMERY PA TRAINED SPOTTER
0135 PM MARINE TSTM WIND 1 WNW LEWES 38.79N 75.15W
07/06/2020 M43 MPH SUSSEX DE MESONET
CORRECTS PREVIOUS MARINE TSTM WIND REPORT
FROM 1 WNW LEWES.
0139 PM HAIL 1 W MEDFORD TWP. 39.90N 74.83W
07/06/2020 E0.50 INCH BURLINGTON NJ PUBLIC
MPING REPORT.
0142 PM HAIL MANAYUNK 40.03N 75.22W
07/06/2020 E0.50 INCH PHILADELPHIA PA PUBLIC
MPING REPORT.
0145 PM HAIL 2 W YARDVILLE 40.19N 74.70W
07/06/2020 E0.70 INCH MERCER NJ PUBLIC
REPORT VIA SOCIAL MEDIA WITH VIDEO.
0145 PM HAIL BALA CYNWYD 40.01N 75.24W
07/06/2020 E0.25 INCH MONTGOMERY PA TRAINED SPOTTER
PEA SIZE OR SLIGHTLY LARGER HAIL.
0147 PM TSTM WND DMG MOUNT HOLLY 39.99N 74.78W
07/06/2020 BURLINGTON NJ UTILITY COMPANY
DOWNED WIRES NEAR GREEN STREET IN MOUNT
HOLLY. TIME ESTIMATED FROM RADAR.
0148 PM HAIL 2 WNW YARDVILLE 40.20N 74.70W
07/06/2020 E0.75 INCH MERCER NJ PUBLIC
MPING REPORT.
0148 PM HAIL ROXBOROUGH 40.00N 75.22W
07/06/2020 E1.25 INCH PHILADELPHIA PA TRAINED SPOTTER
REPORT VIA SOCIAL MEDIA WITH PHOTO.
0149 PM HAIL MANAYUNK 40.03N 75.21W
07/06/2020 E1.25 INCH PHILADELPHIA PA PUBLIC
MPING REPORT.
0150 PM TSTM WND DMG GILBERTSVILLE 40.32N 75.61W
07/06/2020 MONTGOMERY PA PUBLIC
TREE SNAPPED. REPORT VIA SOCIAL MEDIA WITH
PHOTO. TIME ESTIMATED FROM RADAR.
0150 PM HAIL HAMILTON TWP 40.23N 74.72W
07/06/2020 E0.50 INCH MERCER NJ PUBLIC
REPORT VIA SOCIAL MEDIA WITH VIDEO.
0153 PM TSTM WND DMG 1 E LUMBERTON 39.98N 74.79W
07/06/2020 BURLINGTON NJ UTILITY COMPANY
DOWNED TREE AND WIRES NEAR ASHLEY LANE IN
LUMBERTON. TIME ESTIMATED FROM RADAR.
0155 PM TSTM WND GST UPPER DUBLIN TWP 40.15N 75.20W
07/06/2020 NAN MPH MONTGOMERY PA 911 CALL CENTER
TREE DOWN AT DRESHERTOWN ROAD AND APPLEWOOD
DRIVE IN UPPER DUBLIN TOWNSHIP.
0155 PM TSTM WND DMG 1 N ELLISBURG 39.93N 75.00W
07/06/2020 CAMDEN NJ UTILITY COMPANY
TREE LIMBS AND WIRES DOWN NEAR COLUMBIA
BOULEVARD IN CHERRY HILL. TIME ESTIMATED
FROM RADAR.
0155 PM FLASH FLOOD NORTHEAST PHILADELPHIA 40.09N 75.02W
07/06/2020 PHILADELPHIA PA MESONET
PENNYPACK CREEK IN NORTHEAST PHILADELPHIA
REACHED FLOOD STAGE AFTER RISING 4.5 FEET IN
LESS THAN ONE HOUR FROM HEAVY RAIN.
0200 PM HAIL HAMILTON SQUARE 40.23N 74.65W
07/06/2020 E1.00 INCH MERCER NJ TRAINED SPOTTER
MAINLY PENNY SIZE BUT A FEW STONES TO
QUARTER SIZE. HAIL FELL FOR AROUND 15
MINUTES.
0200 PM HAIL ROBBINSVILLE TWP. 40.23N 74.63W
07/06/2020 E0.70 INCH MERCER NJ PUBLIC
REPORT VIA SOCIAL MEDIA WITH PHOTOS.
0200 PM HAIL ALLENTOWN 40.18N 74.58W
07/06/2020 E0.50 INCH MONMOUTH NJ PUBLIC
MPING REPORT.
0200 PM TSTM WND DMG 1 NE JOBSTOWN 40.04N 74.68W
07/06/2020 BURLINGTON NJ UTILITY COMPANY
DOWNED WIRES NEAR MONMOUTH ROAD IN
SPRINGFILED TWP. TIME ESTIMATED FROM RADAR.
0200 PM HAIL 2 NNW YARDVILLE 40.21N 74.68W
07/06/2020 E1.00 INCH MERCER NJ TRAINED SPOTTER
REPORT WITH PHOTO OF HAIL TO ABOUT QUARTER
SIZE.
0205 PM FLOOD 1 N BELMONT HILLS 40.03N 75.24W
07/06/2020 MONTGOMERY PA DEPT OF HIGHWAYS
FLOODING ON I-76 EASTBOUND NEAR MILE MARKER
337. LANE RESTRICTIONS IN PLACE.
0205 PM HAIL ALLENTOWN 40.18N 74.59W
07/06/2020 E1.00 INCH MONMOUTH NJ PUBLIC
REPORT VIA SOCIAL MEDIA WITH PHOTO OF HAIL
TO AROUND QUARTER SIZE. TIME ESTIMATED FROM
RADAR.
0205 PM TSTM WND DMG 1 NNE LOWER GWYNEDD TWP 40.20N 75.22W
07/06/2020 MONTGOMERY PA COUNTY OFFICIAL
TREE DOWN ONTO A VEHICLE ON WALNUT FARM ROAD
IN LOWER GWYNEDD TWP. TIME ESTIMATED FROM
RADAR.
0206 PM TSTM WND DMG 1 SSE ELLISBURG 39.90N 74.99W
07/06/2020 CAMDEN NJ UTILITY COMPANY
SEVERAL REPORTS OF TREES AND WIRES DOWN IN
THE SPRINGDALE, SOCIETY HILL, AND ELLISBURG
AREAS. TIME ESTIMATED FROM RADAR.
0206 PM TSTM WND DMG HADDON TOWNSHIP 39.91N 75.04W
07/06/2020 CAMDEN NJ UTILITY COMPANY
DOWNED TREE AND WIRES NEAR LOCUST AVENUE IN
HADDON TWP. TIME ESTIMATED FROM RADAR.
0208 PM TSTM WND DMG MARLTON 39.90N 74.92W
07/06/2020 BURLINGTON NJ UTILITY COMPANY
SEVERAL REPORTS OF TREE LIMBS AND WIRES DOWN
IN THE EVESBORO AND MARLTON AREAS. TIME
ESTIMATED FROM RADAR.
0208 PM TSTM WND DMG FEASTERVILLE-TREVOSE 40.13N 74.97W
07/06/2020 BUCKS PA 911 CALL CENTER
WIRES DOWN ON COUNTY LINE ROAD IN
FEASTERVILLE.
0210 PM HAIL HAMILTON 40.21N 74.67W
07/06/2020 E1.25 INCH MERCER NJ PUBLIC
REPORT VIA SOCIAL MEDIA WITH PHOTO OF HAIL A
LITTLE LARGER THAN QUARTER SIZE. TIME
ESTIMATED FROM RADAR.
0210 PM HAIL ROBBINSVILLE TWP. 40.22N 74.64W
07/06/2020 E1.00 INCH MERCER NJ PUBLIC
REPORT VIA SOCIAL MEDIA WITH PHOTOS OF HAIL
AROUND QUARTER SIZE.
0210 PM HAIL 2 NNW YARDVILLE 40.21N 74.68W
07/06/2020 E1.50 INCH MERCER NJ BROADCAST MEDIA
REPORT VIA SOCIAL MEDIA WITH PHOTOS OF PING
PONG BALL SIZE HAIL.
0210 PM TSTM WND DMG JENKINTOWN 40.10N 75.12W
07/06/2020 MONTGOMERY PA 911 CALL CENTER
TREE DOWN ON WIRES ON WASHINGTON LANE AT OLD
YORK ROAD IN JENKINTOWN. TIME ESTMATED FROM
RADAR.
0211 PM TSTM WND DMG 1 WSW MEDFORD 39.88N 74.85W
07/06/2020 BURLINGTON NJ UTILITY COMPANY
REPORTS OF TREE LIMBS AND WIRES DOWN NEAR
GEORGIA TRAIL IN MEDFORD. TIME ESTIMATED
FROM RADAR.
0214 PM TSTM WND DMG MEDFORD TWP. 39.90N 74.82W
07/06/2020 BURLINGTON NJ UTILITY COMPANY
DOWNED TREE LIMBS AND WIRES NEAR BRANCH
STREET IN MEDFORD. TIME ESTIMATED FROM
RADAR.
0215 PM FLASH FLOOD 2 WSW HAINESPORT 39.97N 74.86W
07/06/2020 BURLINGTON NJ NWS EMPLOYEE
UNION MILL ROAD IN HAINESPORT AND MOUNT
LAUREL CLOSED FROM FLASH FLOODING. TIME
ESTIMATED FROM SURROUNDING REPORTS AND
RADAR.
0215 PM TSTM WND DMG 1 S MARLTON 39.88N 74.92W
07/06/2020 BURLINGTON NJ DEPT OF HIGHWAYS
DOWNED WIRES ON NJ-73 BOTH DIRECTIONS
BETWEEN BRICK RD AND MAPLE AVE. ALL LANES
CLOSED AND DETOURED. TIME ESTIMATED FROM
RADAR.
0219 PM TSTM WND DMG 3 NNE COOLBAUGH TWP 41.22N 75.32W
07/06/2020 MONROE PA UTILITY COMPANY
CORRECTS PREVIOUS TSTM WND DMG REPORT FROM 3
NNE COOLBAUGH TWP. DOWNED TREE LIMBS AND
WIRES NEAR ROUTE 191 IN COOLBAUGH TWP. TIME
ESTIMATED FROM RADAR.
0220 PM TSTM WND DMG MARLTON 39.89N 74.93W
07/06/2020 BURLINGTON NJ PUBLIC
MULTIPLE TREES AND WIRES DOWN ON ROUTE 73 IN
MARLTON. REPORT VIA SOCIAL MEDIA. TIME
ESTIMATED FROM RADAR.
0223 PM TSTM WND DMG HAINESPORT 39.99N 74.83W
07/06/2020 BURLINGTON NJ 911 CALL CENTER
TREE ON WIRES ON CREEK ROAD AT ROUTE 38 IN
HAINESPORT. TIME ESTIMATED FROM RADAR.
0226 PM HAIL 1 SSW TOMS RIVER 39.94N 74.21W
07/06/2020 E1.00 INCH OCEAN NJ PUBLIC
MPING REPORT.
0228 PM TSTM WND DMG 2 SSE COLLEGEVILLE 40.17N 75.45W
07/06/2020 MONTGOMERY PA COUNTY OFFICIAL
DOWNED POWER LINES ON LANDIS MILL ROAD NEAR
LEVEL ROAD IN COLLEGEVILLE. TIME ESTIMATED
FROM RADAR.
0230 PM HAIL EAST NORRITON 40.15N 75.34W
07/06/2020 E0.50 INCH MONTGOMERY PA PUBLIC
REPORT VIA SOCIAL MEDIA WITH PHOTO.
0230 PM HAIL CHALFONT 40.29N 75.21W
07/06/2020 E0.50 INCH BUCKS PA PUBLIC
REPORT VIA SOCIAL MEDIA.
0232 PM TSTM WND DMG LINDENWOLD 39.82N 74.97W
07/06/2020 CAMDEN NJ UTILITY COMPANY
REPORTS OF TREES AND WIRES DOWN IN
LINDENWOLD. TIME ESTIMATED FROM RADAR.
0234 PM TSTM WND DMG 2 NE MOUNT POCONO 41.14N 75.34W
07/06/2020 MONROE PA UTILITY COMPANY
DOWNED TREE LIMBS AND WIRES NEAR DEVILS HOLE
ROAD IN PARADISE TWP. TIME ESTIMATED FROM
RADAR.
0235 PM FLASH FLOOD BENSALEM 40.11N 74.93W
07/06/2020 BUCKS PA 911 CALL CENTER
THREE CARS SUBMERGED ON WILLOW LANE IN
BENSALEM.
0235 PM HAIL BEACHWOOD 39.92N 74.21W
07/06/2020 E0.25 INCH OCEAN NJ PUBLIC
REPORT VIA SOCIAL MEDIA OF PEA SIZE OR
SLIGHTLY LARGER HAIL.
0238 PM HEAVY RAIN MOORESTOWN 39.97N 74.94W
07/06/2020 M2.50 INCH BURLINGTON NJ TRAINED SPOTTER
FELL IN 90 MINUTES SOME STREET FLOODING.
0240 PM TSTM WND DMG ENGLISHTOWN 40.30N 74.36W
07/06/2020 MONMOUTH NJ UTILITY COMPANY
DOWNED TREE LIMBS AND WIRES NEAR WILSON RAOD
IN ENGLISHTOWN. TIME ESTIMATED FROM RADAR.
0240 PM FLASH FLOOD PHILADELPHIA 39.95N 75.15W
07/06/2020 PHILADELPHIA PA 911 CALL CENTER
NUMEROUS CARS SUBMERGED ON CHELTENHEM AVENUE
IN PHILADELPHIA.
0240 PM FLASH FLOOD ABINGTON 40.12N 75.13W
07/06/2020 MONTGOMERY PA 911 CALL CENTER
WATER RESCUES AT HUNTINGDON PIKE AND SAN
DIEGO AVENUE IN ABINGTON.
0240 PM HAIL EAST MANLAPAN 40.26N 74.29W
07/06/2020 E0.75 INCH MONMOUTH NJ PUBLIC
REPORT VIA SOCIAL MEDIA WITH PHOTOS.
0242 PM TSTM WND DMG WARWICK TWP 40.27N 75.09W
07/06/2020 BUCKS PA PUBLIC
CORRECTS TIME OF PREVIOUS TSTM WND DMG
REPORT FROM WARWICK TWP. SEVERAL TREES AND
WIRES DOWN IN WARWICK TWP. TIME ESTIMATED
FROM RADAR.
0243 PM HAIL PLYMOUTH TWP 40.14N 75.31W
07/06/2020 E1.00 INCH MONTGOMERY PA PUBLIC
MPING REPORT.
0243 PM TSTM WND DMG 1 ENE OAKS 40.14N 75.43W
07/06/2020 MONTGOMERY PA COUNTY OFFICIAL
CORRECTS PREVIOUS TSTM WND DMG REPORT FROM 1
ENE OAKS. DOWNED TREE ON EAGLEVILLE ROAD
NEAR PINETOWN ROAD IN OAKS. TIME ESTIMATED
FROM RADAR.
0245 PM FLASH FLOOD CHELTENHAM 40.06N 75.11W
07/06/2020 MONTGOMERY PA 911 CALL CENTER
WATER RESCUE ON LIMEKILN PIKE IN CHELTENHEM.
0245 PM TSTM WND DMG 1 ESE NORRISTOWN 40.11N 75.31W
07/06/2020 MONTGOMERY PA COUNTY OFFICIAL
DOWNED TREE ON HILLSIDE AVENUE NEAR COLEMAN
STREET IN NORRISTOWN. TIME ESTIMATED FROM
RADAR.
0245 PM TSTM WND GST OCEAN COUNTY AIRPORT (K 39.93N 74.29W
07/06/2020 M61 MPH OCEAN NJ AWOS
0245 PM TSTM WND GST BERKELEY TWP 39.93N 74.30W
07/06/2020 M66 MPH OCEAN NJ MESONET
NJWEATHERNET SITE NJ66.
0245 PM HAIL ALLENTOWN 40.18N 74.59W
07/06/2020 E0.50 INCH MONMOUTH NJ PUBLIC
REPORT VIA SOCIAL MEDIA WITH PHOTO.
0249 PM HAIL 2 SW MARLBORO TWP 40.31N 74.30W
07/06/2020 E0.75 INCH MONMOUTH NJ PUBLIC
MPING REPORT.
0252 PM HAIL 3.7 SSW HOWELL 40.11N 74.25W
07/06/2020 E0.75 INCH OCEAN NJ COCORAHS
SITE NJ-MN-64. HAIL FELL FOR ABOUT 15
MINUTES.
0252 PM HAIL HOWELL 40.16N 74.22W
07/06/2020 E0.70 INCH MONMOUTH NJ PUBLIC
REPORT VIA SOCIAL MEDIA WITH PHOTOS.
0254 PM HAIL 3.8 ENE FRANKLIN TWP 40.50N 74.47W
07/06/2020 E0.88 INCH SOMERSET NJ COCORAHS
CORRECTS PREVIOUS HAIL REPORT FROM 3.8 ENE
FRANKLIN TWP. SITE NJ-SM-12. HAIL FELL FOR
ABOUT 3 MINUTES.
0255 PM HAIL EAGLEVILLE 40.16N 75.41W
07/06/2020 E1.00 INCH MONTGOMERY PA TRAINED SPOTTER
MAINLY HALF INCH TO PENNY SIZE BUT A FEW
QUARTER SIZE.
0256 PM HAIL PHOENIXVILLE 40.14N 75.51W
07/06/2020 E0.88 INCH MONTGOMERY PA TRAINED SPOTTER
REPORT VIA SOCIAL MEDIA WITH PHOTOS.
0258 PM FLASH FLOOD CHELTENHAM 40.06N 75.11W
07/06/2020 MONTGOMERY PA 911 CALL CENTER
WATER RESCUE AT NEW SECOND STREET AND EAST
CHURCH ROAD IN CHELTENHAM.
0300 PM HAIL UPPER PROVIDENCE TWP 40.16N 75.49W
07/06/2020 E1.00 INCH MONTGOMERY PA TRAINED SPOTTER
HAIL OF AROUND ONE INCH IN DIAMETER.
0300 PM HAIL 1 E LAKEWOOD 40.08N 74.15W
07/06/2020 E1.00 INCH OCEAN NJ PUBLIC
REPORT VIA SOCIAL MEDIA WITH PHOTOS. TIME
ESTIMATED FROM RADAR.
0300 PM TSTM WND DMG 2 W WALL TWP 40.15N 74.10W
07/06/2020 MONMOUTH NJ UTILITY COMPANY
DOWNED TREES AND WIRES NEAR RIDGEWOOD ROAD
IN ALLENWOOD. TIME ESTIMATED FROM RADAR.
0300 PM TSTM WND DMG 1 WNW PLUMSTEAD TWP 40.40N 75.16W
07/06/2020 BUCKS PA PUBLIC
POWER POLE SNAPPED WITH WIRES DOWN ON SCOTT
RD AT KELLERS CHURCH RD. REPORT VIA SOCIAL
MEDIA. TIME ESTIMATED FROM RADAR.
0300 PM HAIL WEST NORRITON 40.13N 75.38W
07/06/2020 E1.00 INCH MONTGOMERY PA PUBLIC
REPORT VIA SOCIAL MEDIA WITH A PHOTO OF HAIL
TO ABOUT QUARTER SIZE. TIME ESTIMATED FROM
RADAR.
0304 PM FLASH FLOOD CHELTENHAM 40.06N 75.11W
07/06/2020 MONTGOMERY PA 911 CALL CENTER
WATER RESCUES ON TOOKANY CREEK PARKWAY IN
CHELTENHAM. LOCAL OFFICIALS SAY TOOKANY
CREEK PARKWAY SHOULD BE AVOIDED AT ALL
COSTS.
0305 PM HAIL VALLEY FORGE 40.10N 75.46W
07/06/2020 E0.50 INCH MONTGOMERY PA PUBLIC
REPORT VIA SOCIAL MEDIA.
0305 PM FLASH FLOOD CHELTENHAM 40.06N 75.11W
07/06/2020 MONTGOMERY PA 911 CALL CENTER
WATER RESCUES AT COVENTRY AVENUE AND ASBURY
AVENUE IN CHELTENHEM.
0305 PM HAIL HIGHLAND PARK 40.50N 74.42W
07/06/2020 M0.25 INCH MIDDLESEX NJ TRAINED SPOTTER
0306 PM MARINE TSTM WIND BRICK 40.01N 74.06W
07/06/2020 M46 MPH OCEAN NJ MESONET
WEATHERFLOW SITE XMLK.
0308 PM TSTM WND DMG MANASQUAN 40.13N 74.04W
07/06/2020 MONMOUTH NJ UTILITY COMPANY
DOWNED WIRES NEAR SEA GIRT AVENUE. TIME
ESTIMATED FROM RADAR.
0310 PM TSTM WND DMG 2 NNW OLD BRIDGE 40.38N 74.35W
07/06/2020 MIDDLESEX NJ UTILITY COMPANY
DOWNED TREES AND WIRES NEAR PLEASANT VALLEY
ROAD IN OLD BRIDGE. TIME ESTIMATED FROM
RADAR.
0313 PM FLASH FLOOD NORRISTOWN 40.12N 75.33W
07/06/2020 MONTGOMERY PA COUNTY OFFICIAL
WATER RESCUE AT STERIGERE STREET IN
NORRISTOWN.
0314 PM FLASH FLOOD CHELTENHAM 40.06N 75.11W
07/06/2020 MONTGOMERY PA COUNTY OFFICIAL
WATER RESCUE AT RYERS AVENUE IN CHELTENHAM.
0315 PM HAIL PHOENIXVILLE 40.14N 75.51W
07/06/2020 E1.25 INCH MONTGOMERY PA PUBLIC
REPORT VIA SOCIAL MEDIA WITH PHOTOS OF HAIL
A LITTLE LARGER THAN QUARTER SIZE.
0315 PM HAIL 1 N OAKS 40.14N 75.45W
07/06/2020 M1.00 INCH MONTGOMERY PA PUBLIC
MULTIPLE REPORTS OF HAIL NEAR COLLEGEVILLE,
WITH A PHOTO OF HAIL UP TO QUARTER SIZE.
0317 PM FLASH FLOOD ABINGTON 40.12N 75.13W
07/06/2020 MONTGOMERY PA COUNTY OFFICIAL
WATER RESCUE ON IRVIN ROAD IN ABINGTON.
0318 PM FLASH FLOOD UPPER DUBLIN TWP 40.15N 75.20W
07/06/2020 MONTGOMERY PA COUNTY OFFICIAL
WATER RESCUE AT LOCH ALSH AVENUE AND FARM
LANE IN UPPER DUBLIN TOWNSHIP.
0320 PM FLASH FLOOD MOORESTOWN TWP 39.97N 74.95W
07/06/2020 BURLINGTON NJ NWS EMPLOYEE
WEST CENTRAL AVE IN MOORESTOWN FLOODED AND
IMPASSABLE.
0320 PM HAIL 1 SSW SOUTH PLAINFIELD 40.57N 74.42W
07/06/2020 E1.00 INCH MIDDLESEX NJ TRAINED SPOTTER
0320 PM HAIL 1 W PERTH AMBOY 40.51N 74.28W
07/06/2020 E1.00 INCH MIDDLESEX NJ TRAINED SPOTTER
0321 PM FLASH FLOOD RAMBLEWOOD 39.93N 74.94W
07/06/2020 BURLINGTON NJ LAW ENFORCEMENT
RAMBLEWOOD PARKWAY FLOODED.
0321 PM FLASH FLOOD CHELTENHAM 40.06N 75.11W
07/06/2020 MONTGOMERY PA MESONET
TACONY CREEK ROSE 6 FEET IN 1.5 HOURS FROM
HEAVY RAIN.
0323 PM FLOOD BROWNTOWN 40.40N 74.31W
07/06/2020 MIDDLESEX NJ COUNTY OFFICIAL
CORRECTS PREVIOUS FLASH FLOOD REPORT FROM
BROWNTOWN FOR REPORT TYPE. FLOODING ALONG US
9 NORTHBOUND. OLD MILL ROAD JUGHANDLE
BLOCKED.
0324 PM HAIL METUCHEN 40.55N 74.36W
07/06/2020 E1.00 INCH MIDDLESEX NJ PUBLIC
REPORT VIA SOCIAL MEDIA WITH VIDEO OF HAIL
UP TO ABOUT QUARTER SIZE. SOME SMALL DENTS
ON VEHICLES REPORTED. TIME ESTIMATED FROM
RADAR.
0325 PM HAIL EDISON 40.53N 74.38W
07/06/2020 E1.50 INCH MIDDLESEX NJ TRAINED SPOTTER
QUARTER TO PING PONG BALL SIZE HAIL.
0327 PM HAIL 1 SSE OTTSVILLE 40.47N 75.16W
07/06/2020 E0.75 INCH BUCKS PA PUBLIC
MPING REPORT.
0327 PM HAIL 2 S HELLERTOWN 40.54N 75.35W
07/06/2020 E0.75 INCH LEHIGH PA PUBLIC
MPING REPORT.
0328 PM TSTM WND DMG 1 WSW COLONIA 40.60N 74.34W
07/06/2020 MIDDLESEX NJ UTILITY COMPANY
TREE DOWN ON WIRES NEAR ELLIS PARKWAY IN
COLONIA. TIME ESTIMATED FROM RADAR.
0330 PM HAIL WOODBRIDGE 40.55N 74.27W
07/06/2020 E1.00 INCH MIDDLESEX NJ TRAINED SPOTTER
NICKEL TO QUARTER SIZE HAIL.
0330 PM HAIL 1 E OAKS 40.13N 75.43W
07/06/2020 E1.25 INCH MONTGOMERY PA PUBLIC
REPORT VIA SOCIAL MEDIA WITH PHOTOS AND
VIDEO OF HAIL UP TO ABOUT HALF DOLLAR SIZE
NEAR AUDUBON. TIME ESTIMATED FROM RADAR.
0330 PM TSTM WND DMG LOWER PROVIDENCE TOWNSH 40.18N 75.37W
07/06/2020 MONTGOMERY PA TRAINED SPOTTER
TREE DOWN ON WIRES ON PAWLINGS ROAD. TIME
ESTIMATED FROM RADAR.
0330 PM TSTM WND GST 2 SW WHIPPANY 40.81N 74.43W
07/06/2020 E58 MPH MORRIS NJ FIRE DEPT/RESCUE
TREES AND WIRES DOWN NEAR THE INTERSECTION
OF WHIPPANY ROAD AND FORD HILL ROAD NEAR
WHIPPANY. TIME ESTIMATED FROM RADAR.
0330 PM FLASH FLOOD 1 E MOORESTOWN 39.97N 74.92W
07/06/2020 BURLINGTON NJ LAW ENFORCEMENT
MARTER AVE FLOODED.
0335 PM HAIL FLORHAM PARK 40.79N 74.40W
07/06/2020 E0.50 INCH MORRIS NJ CO-OP OBSERVER
0336 PM HAIL MORRISTOWN 40.79N 74.48W
07/06/2020 M1.00 INCH MORRIS NJ PUBLIC
CORRECTS PREVIOUS HAIL REPORT FROM
MORRISTOWN. QUARTER-SIZED HAIL AT GINTY
FIELD IN MORRISTOWN. TIME MODIFIED BASED ON
RADAR, SOCIAL MEDIA INFORMATION, AND NEARBY
HAIL REPORTS.
0337 PM TSTM WND DMG 1 WSW VALLEY FORGE 40.10N 75.47W
07/06/2020 CHESTER PA COUNTY OFFICIAL
SEVERAL REPORTS OF TREES AND WIRES DOWN IN
VICINITY OF OAKWOOD LANE, DAVIS ROAD, JUG
HOLLOW ROAD, AND VALLEY PARK ROAD. TIME
ESTIMATED FROM RADAR.
0337 PM HAIL 2 ENE CENTER VALLEY 40.54N 75.35W
07/06/2020 E1.25 INCH LEHIGH PA PUBLIC
MPING REPORT.
0337 PM TSTM WND DMG MORRISTOWN 40.79N 74.48W
07/06/2020 MORRIS NJ FIRE DEPT/RESCUE
CORRECTS PREVIOUS TSTM WND DMG REPORT FROM
MORRISTOWN. TREES AND WIRES DOWN IN
MORRISTOWN. SEVERAL CARS WERE DAMAGED OR
DESTROYED BY THE FALLING TREES. TIME
ESTIMATED FROM RADAR.
0337 PM TSTM WND DMG MORRIS PLAINS 40.83N 74.48W
07/06/2020 MORRIS NJ FIRE DEPT/RESCUE
TREES AND WIRES DOWN IN MORRIS PLAINS. TIME
ESTIMATED FROM RADAR.
0338 PM TSTM WND DMG MORRIS PLAINS 40.82N 74.48W
07/06/2020 MORRIS NJ UTILITY COMPANY
DOWNED TREES AND WIRES NEAR SPEEDWELL AVENUE
IN MORRIS PLAINS. TIME ESTIMATED FROM RADAR.
0338 PM TSTM WND DMG MORRIS TWP 40.78N 74.46W
07/06/2020 MORRIS NJ FIRE DEPT/RESCUE
TREES AND WIRES DOWN IN MORRIS TWP. TIME
ESTIMATED FROM RADAR.
0340 PM HAIL WOODBRIDGE 40.56N 74.28W
07/06/2020 E0.50 INCH MIDDLESEX NJ TRAINED SPOTTER
0340 PM TSTM WND DMG 2 SSE HELLERTOWN 40.55N 75.33W
07/06/2020 NORTHAMPTON PA PUBLIC
AN MPING REPORT OF 3 INCH DIAMETER TREE
LIMBS OR POWER POLES SNAPPED. TIME ESTIMATED
FROM RADAR.
0340 PM TSTM WND DMG 1 ENE MORRISTOWN 40.80N 74.46W
07/06/2020 MORRIS NJ UTILITY COMPANY
DOWNED TREES AND WIRES NEAR MORRIS AVENUE IN
MORRISTOWN. TIME ESTIMATED FROM RADAR.
0340 PM HAIL CENTER VALLEY 40.53N 75.39W
07/06/2020 E1.25 INCH LEHIGH PA PUBLIC
REPORT VIA SOCIAL MEDIA WITH PHOTO OF HAIL
TO HALF DOLLAR SIZE OR A LITTLE LARGER. TIME
ESTIMATED FROM RADAR.
0343 PM TSTM WND DMG MENDHAM 40.78N 74.60W
07/06/2020 MORRIS NJ UTILITY COMPANY
REPORTS OF DOWNED POWER LINES IN MENDHAM.
TIME ESTIMATED FROM RADAR.
0343 PM TSTM WND DMG 2 NNW NEW VERNON 40.77N 74.51W
07/06/2020 MORRIS NJ UTILITY COMPANY
DOWNED TREES AND WIRES NEAR JENKS HILL ROAD
IN NEW VERNON. TIME ESTIMATED FROM RADAR.
0344 PM HAIL 4 W WADING RIVER 39.62N 74.58W
07/06/2020 E0.50 INCH BURLINGTON NJ TRAINED SPOTTER
0345 PM FLOOD FLORHAM PARK 40.79N 74.39W
07/06/2020 MORRIS NJ PUBLIC
MPING REPORT OF STREET FLOODING.
0348 PM TSTM WND DMG 2 NW NEW VERNON 40.76N 74.52W
07/06/2020 MORRIS NJ UTILITY COMPANY
DOWNED TREES AND WIRES NEAR MOUNT KEMBLE
AVENUE IN NEW VERNON. TIME ESTIMATED FROM
RADAR.
0354 PM MARINE TSTM WIND 1 ENE LEWES 38.79N 75.12W
07/06/2020 M52 MPH ANZ431 DE MESONET
WEATHERFLOW SITE AT CAPE HENLOPEN.
0355 PM TSTM WND DMG MORRISTOWN 40.79N 74.48W
07/06/2020 MORRIS NJ FIRE DEPT/RESCUE
TREE DOWN ON MAPLE AVE. TIME ESTIMATED FROM
RADAR.
0355 PM TSTM WND DMG MORRIS TWP 40.79N 74.47W
07/06/2020 MORRIS NJ FIRE DEPT/RESCUE
A LARGE TREE WAS DOWNED ON SOUTH ST. TIME
ESTIMATED FROM RADAR.
0355 PM FLASH FLOOD 1 SE MORRISTOWN 40.79N 74.47W
07/06/2020 MORRIS NJ FIRE DEPT/RESCUE
FLOODING NEAR THE JUNCTION OF MADISON AVE
AND I-287.
0357 PM MARINE TSTM WIND 1 NW CAPE MAY POINT 38.94N 74.98W
07/06/2020 M44 MPH ANZ431 NJ MESONET
WEATHERFLOW SITE XMAY.
0358 PM TSTM WND DMG 1 ESE DEVAULT 40.06N 75.51W
07/06/2020 CHESTER PA COUNTY OFFICIAL
DOWNED TREE ON COOL VALLEY ROAD NEAR SHADOW
OAK DRIVE IN DEVAULT. TIME ESTIMATED FROM
RADAR.
0400 PM MARINE TSTM WIND CAPE MAY HARBOR 38.95N 74.89W
07/06/2020 M44 MPH ANZ453 NJ MESONET
CAPE MAY HARBOR WEATHERFLOW GAUGE.
0400 PM TSTM WND DMG 1 NE MORRIS TWP 40.79N 74.46W
07/06/2020 MORRIS NJ FIRE DEPT/RESCUE
TREE DOWN ON MADISON AVE. TIME ESTIMATED
FROM RADAR.
0400 PM FLASH FLOOD 1 ESE MORRISTOWN 40.79N 74.47W
07/06/2020 MORRIS NJ FIRE DEPT/RESCUE
FRANKLIN ST CLOSED DUE TO FLASH FLOODING.
0400 PM HAIL TREXLERTOWN 40.55N 75.60W
07/06/2020 E1.00 INCH LEHIGH PA TRAINED SPOTTER
HAIL UP TO QUARTER SIZE FELL FOR ABOUT 7
MINUTES.
0400 PM FLASH FLOOD CHELTENHAM 40.06N 75.11W
07/06/2020 MONTGOMERY PA COUNTY OFFICIAL
SEVERE FLASH FLOODING OCCURRED IN THE
CHELTENHAM AREA WESTWARD TO THE AUDUBON AREA
IN FAR SOUTHEAST MONTGOMERY AND ADJACENT
NORTHWEST PHILADELPHIA COUNTIES. BETWEEN 2
AND 4 PM, THERE WERE OVER 30 SEPARATE
DISPATCH REPORTS OF WATER RESCUES IN
MONTGOMERY COUNTY ALONE, MANY OF THEM FOR
MULTIPLE VEHICLES. NUMEROUS ROADS WERE
CLOSED IN THE AREA FOR SEVERAL HOURS.
0403 PM MARINE TSTM WIND 2 NW LEWES 38.79N 75.16W
07/06/2020 M42 MPH ANZ431 DE MESONET
WEATHERFLOW SITE XLEW.
0406 PM MARINE TSTM WIND 4 SE MYSTIC ISLAND 39.52N 74.32W
07/06/2020 M52 MPH ANZ451 NJ MESONET
CORRECTS PREVIOUS MARINE TSTM WIND REPORT
FROM 4 SE MYSTIC ISLAND TO REFLECT NEW
HIGHER WIND GUST. WEATHERFLOW GAUGE XTUK.
0406 PM TSTM WND DMG VALLEY FORGE 40.10N 75.46W
07/06/2020 MONTGOMERY PA PUBLIC
TREE DOWN NEAR RICHARDS ROAD AND STEPHENS
DRIVE, BLOCKING RICHARDS ROAD NEAR VALLEY
FORGE. TIME ESTIMATED FROM RADAR.
0407 PM TSTM WND DMG 1 NE ANCIENT OAKS 40.56N 75.57W
07/06/2020 LEHIGH PA UTILITY COMPANY
DOWNED TREE LIMBS AND WIRES NEAR RED MAPLE
ACRES IN ANCIENT OAKS. TIME ESTIMATED FROM
RADAR.
0410 PM FLASH FLOOD 1 NE MORRISTOWN 40.81N 74.46W
07/06/2020 MORRIS NJ OTHER FEDERAL
THE WHIPPANY RIVER AT MORRISTOWN EXCEEDED
FLOOD STAGE OF 6 FEET.
0411 PM FLASH FLOOD 1 SE MORRISTOWN 40.79N 74.47W
07/06/2020 MORRIS NJ DEPT OF HIGHWAYS
FLOODING ON I-287 BOTH DIRECTIONS
APPROACHING EXIT 35. LANE CLOSURES IN PLACE.
0412 PM MARINE TSTM WIND BRANDYWINE SHOAL LIGHT 38.99N 75.11W
07/06/2020 M49 MPH ANZ431 NJ OTHER FEDERAL
0417 PM HAIL BERWYN 40.05N 75.44W
07/06/2020 E0.75 INCH CHESTER PA PUBLIC
MPING REPORT.
0420 PM FLASH FLOOD 1 SSW TROOPER 40.13N 75.41W
07/06/2020 MONTGOMERY PA FIRE DEPT/RESCUE
WATER RESCUE ON DRIFTWOOD DRIVE WITH WATER
ENTERING AT LEAST ONE HOME.
0424 PM TSTM WND DMG 1 S EAST WHITELAND TWP 40.04N 75.56W
07/06/2020 CHESTER PA COUNTY OFFICIAL
DOWNED TREE NEAR THE INTERSECTION OF SPROUL
ROAD AND THREE TUN ROAD IN EAST WHITELAND
TWP. TIME ESTIMATED FROM RADAR.
0425 PM FLASH FLOOD MORRIS TWP 40.78N 74.46W
07/06/2020 MORRIS NJ FIRE DEPT/RESCUE
WOODLAND AVE CLOSED DUE TO FLASH FLOODING.
0425 PM HAIL BEERSVILLE 40.75N 75.47W
07/06/2020 E0.50 INCH NORTHAMPTON PA PUBLIC
REPORT VIA SOCIAL MEDIA WITH PHOTO.
0429 PM TSTM WND DMG 1 S SPRING CITY 40.17N 75.55W
07/06/2020 CHESTER PA DEPT OF HIGHWAYS
TREE DOWN IN WIRES ON VALLEY PARK RD AT
POTHOUSE RD. TIME ESTIMATED FROM RADAR.
0430 PM FLASH FLOOD 2 W KING OF PRUSSIA 40.09N 75.42W
07/06/2020 CHESTER PA FIRE DEPT/RESCUE
WATER RESCUE ON RICHARDS RD IN WAYNE.
0440 PM FLASH FLOOD 2 ESE VALLEY FORGE 40.09N 75.43W
07/06/2020 CHESTER PA FIRE DEPT/RESCUE
WATER RESCUE ON RICHARDS RD.
0440 PM FLASH FLOOD MORRISTOWN 40.80N 74.48W
07/06/2020 MORRIS NJ FIRE DEPT/RESCUE
PINE ST CLOSED DUE TO FLASH FLOODING.
0442 PM TSTM WND DMG 2 S ALBRIGHTSVILLE 40.99N 75.60W
07/06/2020 CARBON PA UTILITY COMPANY
DOWNED TREE LIMBS AND WIRES NEAR UFFLEMAN
LANE IN ALBRIGHTSVILLE. TIME ESTIMATED FROM
RADAR.
0446 PM FLASH FLOOD 2 WNW NEW VERNON 40.75N 74.53W
07/06/2020 MORRIS NJ DEPT OF HIGHWAYS
FLOODING ON US-202 IN BOTH DIRECTIONS NEAR
CR 646/TEMPE WICK RD. LANE CLOSURES IN
PLACE. TIME ESTIMATED FROM RADAR.
0454 PM HAIL 1 NNE NESQUEHONING 40.87N 75.81W
07/06/2020 E1.25 INCH CARBON PA PUBLIC
MPING REPORT.
0459 PM FLASH FLOOD PAOLI 40.04N 75.48W
07/06/2020 CHESTER PA COUNTY OFFICIAL
ROCKS SWEPT ONTO VALLEY ROAD NEAR LANCASTER
PIKE FROM FLOOD WATERS. TIME ESTIMATED FROM
RADAR.
0500 PM TSTM WND DMG 3 ESE EXTON 40.02N 75.59W
07/06/2020 CHESTER PA COUNTY OFFICIAL
DOWNED TREE ON PHOENIXVILLE PIKE NEAR KING
ROAD IN EXTON. TIME ESTIMATED FROM RADAR.
0501 PM TSTM WND DMG 1 WSW EMERALD 40.74N 75.65W
07/06/2020 LEHIGH PA UTILITY COMPANY
DOWNED TREE LIMBS AND WIRES NEAR MOLASSES
BARREL ROAD IN EMERALD. TIME ESTIMATED FROM
RADAR.
0503 PM MARINE TSTM WIND 2 NE STRATHMERE 39.22N 74.64W
07/06/2020 E46 MPH ANZ453 NJ MESONET
WEATHERFLOW SITE XOCS.
0505 PM TSTM WND DMG MERTZTOWN 40.51N 75.67W
07/06/2020 BERKS PA FIRE DEPT/RESCUE
DOWNED TREES SOUTHEAST OF MERTZTOWN. TIME
ESTIMATED FROM RADAR.
0507 PM TSTM WND DMG 1 SW ALBURTIS 40.50N 75.61W
07/06/2020 LEHIGH PA UTILITY COMPANY
DOWNED TREE LIMBS AND WIRES NEAR MATTHEWS
LANE IN ALBURTIS. TIME ESTIMATED FROM RADAR.
0507 PM FLASH FLOOD FORT WASHINGTON 40.15N 75.21W
07/06/2020 MONTGOMERY PA DEPT OF HIGHWAYS
FLOODING ALONG ROUTE 309 NEAR THE FORT
WASHINGTON INTERCHANGE WITH THE PENNSYLVANIA
TURNPIKE.
0510 PM HAIL CEDARVILLE 39.33N 75.20W
07/06/2020 E0.50 INCH CUMBERLAND NJ TRAINED SPOTTER
TIME ESTIMATED FROM RADAR.
0510 PM TSTM WND DMG 2 NW EMERALD 40.76N 75.66W
07/06/2020 LEHIGH PA FIRE DEPT/RESCUE
MULTIPLE REPORTS OF DOWNED TREES AND WIRES
ON MOUNTAIN RD. TIME ESTIMATED FROM RADAR.
0513 PM HAIL NEWPORT 39.30N 75.18W
07/06/2020 E0.25 INCH CUMBERLAND NJ TRAINED SPOTTER
0515 PM FLOOD PLEASANTVILLE 39.39N 74.52W
07/06/2020 ATLANTIC NJ TRAINED SPOTTER
SOME STREET FLOODING IN PLEASANTVILLE.
0515 PM TSTM WND DMG NEW TRIPOLI 40.68N 75.75W
07/06/2020 LEHIGH PA PUBLIC
TREES AND WIRES DOWN NORTH OF NEW TRIPOLI.
TIME ESTIMATED FROM RADAR.
0520 PM FLASH FLOOD MALVERN 40.04N 75.51W
07/06/2020 CHESTER PA COUNTY OFFICIAL
PLANDBROOK ROAD AT US ROUTE 202 NEAR
IMMACULATA CLOSED FROM FLOODING.
0520 PM FLOOD SOMERS POINT 39.31N 74.60W
07/06/2020 ATLANTIC NJ PUBLIC
FLOODING ON MACARTHUR BLVD. WATER ABOUT
HALFWAY UP THE TIRES OF A CAR.
0525 PM MARINE TSTM WIND FORTESCUE 39.24N 75.18W
07/06/2020 M44 MPH ANZ430 NJ MESONET
0525 PM TSTM WND GST POCOPSON 39.90N 75.62W
07/06/2020 E50 MPH CHESTER PA PUBLIC
WIRES DOWN NEAR THE INTERSECTION OF WEST
STREET ROAD AND CREEK ROAD. TIME ESTIMATED
FROM RADAR.
0527 PM TSTM WND GST 1 SW BIRMINGHAM TWP 39.90N 75.61W
07/06/2020 E58 MPH CHESTER PA FIRE DEPT/RESCUE
TREE AND WIRES DOWN NEAR THE INTERSECTION OF
MEETINGHOUSE ROAD AND CREEK ROAD NORTH OF
CHADDS FORD. TIME ESTIMATED FROM RADAR.
0530 PM TSTM WND GST FORTESCUE 39.24N 75.18W
07/06/2020 M61 MPH CUMBERLAND NJ MESONET
NJ WEATHERNET SITE NJ67.
0530 PM TSTM WND DMG 2 NNW GERMANSVILLE 40.73N 75.73W
07/06/2020 LEHIGH PA UTILITY COMPANY
DOWNED TREES AND WIRES NEAR MOUNTAIN ROAD IN
GERMANSVILLE. TIME ESTIMATED FROM RADAR.
0532 PM TSTM WND DMG 2 NW GERMANSVILLE 40.73N 75.73W
07/06/2020 LEHIGH PA FIRE DEPT/RESCUE
DOWNED TREES AND WIRES NEAR THE INTERSECTION
OF MOUNTAIN ROAD AND CHESTER ROAD. TIME
ESTIMATED FROM RADAR.
0532 PM TSTM WND DMG PENNSBURY TWP 39.88N 75.62W
07/06/2020 CHESTER PA DEPT OF HIGHWAYS
MULTIPLE REPORTS OF TREES DOWN INTO WIRES ON
US-1. TIME ESTIMATED FROM RADAR.
0535 PM HAIL DISTRICT TWP 40.45N 75.65W
07/06/2020 M0.75 INCH BERKS PA TRAINED SPOTTER
PHOTOS OF PENNY SIZE HAIL.
0536 PM MARINE TSTM WIND BRANDYWINE SHOAL LIGHT 38.99N 75.11W
07/06/2020 M58 MPH ANZ431 NJ MESONET
0539 PM HAIL 2 NNW BECHTELSVILLE 40.41N 75.65W
07/06/2020 E0.75 INCH BERKS PA PUBLIC
MPING REPORT.
0540 PM TSTM WND DMG AVONDALE 39.82N 75.78W
07/06/2020 CHESTER PA COUNTY OFFICIAL
DOWNED TREE ON ELLICOTT ROAD IN AVONDALE.
TIME ESTIMATED FROM RADAR.
0542 PM MARINE TSTM WIND CAPE MAY HARBOR 38.95N 74.89W
07/06/2020 M52 MPH ANZ453 NJ MESONET
CAPN4.
0545 PM FLASH FLOOD 1 SSW TROOPER 40.13N 75.41W
07/06/2020 MONTGOMERY PA FIRE DEPT/RESCUE
A PORTION OF EGYPT RD WAS WASHED OUT FROM
FLOODING.
0548 PM MARINE TSTM WIND SHIP JOHN SHOAL 39.31N 75.38W
07/06/2020 M39 MPH ANZ430 DE OTHER FEDERAL
SJSN4.
0550 PM FLOOD SOMERS POINT 39.31N 74.60W
07/06/2020 ATLANTIC NJ PUBLIC
STREET FLOODING IN SOMERS POINT.
0550 PM TSTM WND DMG 1 W WHITE CLAY CREEK 39.73N 75.74W
07/06/2020 NEW CASTLE DE PUBLIC
DOWNED TREE LIMBS AND WIRES NEAR PLEASANT
HILL ROAD IN NEWARK. TIME ESTIMATED FROM
RADAR.
0550 PM FLASH FLOOD OCEAN CITY 39.28N 74.57W
07/06/2020 CAPE MAY NJ TRAINED SPOTTER
FLASH FLOODING IN OCEAN CITY. FLOODING ON
3RD AND WEST ST. MULTIPLE PARTIALLY
SUBMERGED VEHICLES WITH WATER UP AS HIGH AS
THE HOOD. ASBURY AVE FLOODED. WATER REPORTED
TO BE RECEDING.
0552 PM TSTM WND DMG 3 SW EARL TWP 40.33N 75.74W
07/06/2020 BERKS PA FIRE DEPT/RESCUE
TREE DOWN ON MANATAWNY RD. TIME ESTIMATED
FROM RADAR.
0555 PM TSTM WND GST GILBERTSVILLE 40.30N 75.58W
07/06/2020 E58 MPH MONTGOMERY PA PUBLIC
TREE AND WIRES DOWN AT THE GILBERTSVILLE
GOLF COURSE. TIME ESTIMATED FROM RADAR.
0555 PM FLOOD 2 NE MARGATE CITY 39.34N 74.48W
07/06/2020 ATLANTIC NJ PUBLIC
SOME STREET FLOODING IN VENTNOR CITY.
0558 PM TSTM WND DMG 1 S BOYERTOWN 40.32N 75.64W
07/06/2020 BERKS PA FIRE DEPT/RESCUE
TREE DOWN ON ENGLESVILLE RD AT S WASHINGTON
ST. TIME ESTIMATED FROM RADAR.
0602 PM TSTM WND DMG 3 NNE KUTZTOWN 40.56N 75.75W
07/06/2020 BERKS PA FIRE DEPT/RESCUE
DOWNED TREE ON EAGLE POINT RD AT LONG LN.
TIME ESTIMATED FROM RADAR.
0607 PM WATER SPOUT STONE HARBOR 39.05N 74.75W
07/06/2020 ANZ453 NJ BROADCAST MEDIA
PUBLIC VIDEO OF A WATERSPOUT FORWARDED BY
BROADCAST MEDIA. TIME ESTIMATED FROM RADAR.
0610 PM TSTM WND DMG HAMBURG 40.56N 75.98W
07/06/2020 BERKS PA PUBLIC
TREE DOWN ALONG STATE HIGHWAY 61 NEAR
HAMBURG. TIME ESTIMATED FROM RADAR.
0616 PM FUNNEL CLOUD 1 SSW FOLSOM 39.58N 74.85W
07/06/2020 ATLANTIC NJ PUBLIC
VIDEO OF A FUNNEL CLOUD SHOT FROM NEAR BUENA
LOOKING TOWARDS FOLSOM. TIME PROVIDED BY THE
INDIVIDUAL WHO SHOT THE VIDEO.
0625 PM TSTM WND GST READING 40.36N 75.92W
07/06/2020 E58 MPH BERKS PA PUBLIC
CORRECTS PREVIOUS TSTM WND GST REPORT FROM
READING. CORRECTS PREVIOUS TSTM WND GST
REPORT FROM READING. TREE DOWN AT NORTH 10TH
STREET AND BERN STREET IN READING. TIME
ESTIMATED FROM RADAR.
0626 PM TSTM WND DMG 1 NNW WEST LAWN 40.34N 76.00W
07/06/2020 BERKS PA UTILITY COMPANY
DOWNED POWER LINES NEAR KEVIN COURT IN WEST
LAWN. TIME ESTIMATED FROM RADAR.
0630 PM MARINE TSTM WIND CAPE HENLOPEN 38.79N 75.12W
07/06/2020 M39 MPH ANZ431 DE MESONET
WEATHERFLOW SITE.
0634 PM TSTM WND DMG 2 NNW WEST READING 40.36N 75.96W
07/06/2020 BERKS PA UTILITY COMPANY
DOWNED TREES AND WIRES NEAR TULPEHOCKEN ROAD
IN READING. TIME ESTIMATED FROM RADAR.
0636 PM MARINE TSTM WIND INDIAN BEACH 38.68N 75.08W
07/06/2020 M41 MPH ANZ455 DE MESONET
DEWEY BEACH WEATHERFLOW SITE.
0639 PM TSTM WND DMG 1 SE PORT DEPOSIT 39.60N 76.08W
07/06/2020 CECIL MD DEPT OF HIGHWAYS
STATE HIGHWAY 222 EASTBOUND AT HAPPY VALLEY
ROAD IN PORT DEPOSIT WAS CLOSED FROM
WIND-BLOWN DEBRIS. TIME ESTIMATED FROM
RADAR.
0640 PM TSTM WND DMG CHARLESTOWN 39.58N 75.98W
07/06/2020 CECIL MD DEPT OF HIGHWAYS
MD-7 IN BOTH DIRECTIONS CLOSED AT LOUISA LN
DUE TO STORM DEBRIS. TIME ESTIMATED FROM
RADAR.
0640 PM TSTM WND DMG 2 S NORTH EAST 39.58N 75.94W
07/06/2020 CECIL MD DEPT OF HIGHWAYS
MD-272 AT HANCE POINT RD CLOSED DUE TO STORM
DEBRIS. TIME ESTIMATED FROM RADAR.
0641 PM TSTM WND GST 1 WSW MOHNTON 40.28N 76.01W
07/06/2020 E50 MPH BERKS PA PUBLIC
TREE DOWN AT 1402 CLEARFIELD LANE NEAR
MOHNTON. TIME ESTIMATED FROM RADAR.
0641 PM TSTM WND GST 3 WSW WERNERSVILLE 40.31N 76.12W
07/06/2020 E58 MPH BERKS PA PUBLIC
TREE IN WIRES NEAR WERNERSVILLE. TIME
ESTIMATED FROM RADAR.
0642 PM MARINE TSTM WIND CAPE MAY HARBOR 38.95N 74.89W
07/06/2020 M40 MPH ANZ453 NJ OTHER FEDERAL
CAPN4.
0653 PM MARINE TSTM WIND 2 WNW LEWES 38.79N 75.16W
07/06/2020 M41 MPH SUSSEX DE MESONET
WEATHERFLOW SENSOR.
0654 PM HAIL 3 SW SUMMIT BRIDGE 39.51N 75.77W
07/06/2020 E0.50 INCH NEW CASTLE DE PUBLIC
MPING REPORT.
0700 PM TSTM WND DMG 1 W ODESSA 39.46N 75.69W
07/06/2020 NEW CASTLE DE PUBLIC
DOWNED TREE LIMBS AND WIRES NEAR BRICK MILL
ROAD AND DOVE RUN BOULEVARD IN ODESSA. TIME
ESTIMATED FROM RADAR.
0705 PM FLASH FLOOD MUHLENBERG TWP 40.38N 75.94W
07/06/2020 BERKS PA FIRE DEPT/RESCUE
3 VEHICLES STRANDED IN 3 FEET OF WATER NEAR
THE WENDYS.
0711 PM TSTM WND DMG NEW MORGAN 40.19N 75.89W
07/06/2020 BERKS PA UTILITY COMPANY
DOWNED TREES AND WIRES NEAR FURNACE ROAD IN
NEW MORGAN. TIME ESTIMATED FROM RADAR.
0712 PM TSTM WND GST TOLCHESTER BEACH 39.22N 76.24W
07/06/2020 M66 MPH KENT MD OTHER FEDERAL
TCBM2.
0715 PM FLASH FLOOD SINKING SPRING 40.32N 76.02W
07/06/2020 BERKS PA FIRE DEPT/RESCUE
MULTIPLE CARS STRANDED IN WATER ON SPRING
ST.
0719 PM TSTM WND DMG 2 NNE LANGFORD 39.22N 76.12W
07/06/2020 KENT MD DEPT OF HIGHWAYS
STATE HIGHWAY 20 WESTBOUND AT BELL ROSE LANE
CLOSED FROM WIND-BLOWN DEBRIS. TIME
ESTIMATED FROM RADAR.
0720 PM TSTM WND DMG 2 NE LANGFORD 39.21N 76.11W
07/06/2020 KENT MD DEPT OF HIGHWAYS
STATE HIGHWAY 20 WESTBOUND AT STATE HIGHWAY
446 CLOSED FROM WIND-BLOWN DEBRIS. TIME
ESTIMATED FROM RADAR.
0720 PM TSTM WND DMG 2 NNE MASSEY 39.34N 75.81W
07/06/2020 KENT MD UTILITY COMPANY
DOWNED TREES AND WIRES NEAR THE INTERSECTION
OF MASSEY ROAD AND GOLTS ROAD. TIME
ESTIMATED FROM RADAR.
0723 PM TSTM WND DMG 2 ESE OLD TOWN 39.13N 76.06W
07/06/2020 QUEEN ANNE'S MD EMERGENCY MNGR
SOME SPORADIC TREES SNAPPED FROM STRAIGHT
LINE WINDS ALONG LANDS END ROAD, ESPECIALLY
BETWEEN JACK ELLIOTT WAY AND BOOKERS WHART
ROAD, THEN EAST SOUTHEASTWARD TOWARD CHURCH
HILL ROAD BETWEEN CHURCH HILL AND
CENTREVILLE. TIME ESTIMATED FROM RADAR.
0728 PM TSTM WND DMG CRUMPTON 39.24N 75.92W
07/06/2020 QUEEN ANNES MD DEPT OF HIGHWAYS
MD-290 CLOSED IN BOTH DIRECTIONS NEAR FRONT
ST DUE TO STORM DEBRIS. TIME ESTIMATED FROM
RADAR.
0730 PM TSTM WND DMG 2 SW CARVILLE 39.03N 76.03W
07/06/2020 QUEEN ANNES MD DEPT OF HIGHWAYS
MD-304 CLOSED NEAR US-301 DUE TO STORM
DEBRIS. TIME ESTIMATED FROM RADAR.
0735 PM TSTM WND DMG CENTREVILLE 39.05N 76.07W
07/06/2020 QUEEN ANNES MD 911 CALL CENTER
TREES DOWN NEAR AND AROUND CENTREVILLE.
0744 PM TSTM WND DMG 6 NW TALBOT 38.88N 76.34W
07/06/2020 QUEEN ANNES MD DEPT OF HIGHWAYS
STATE HIGHWAY 8 CLOSED AT DORCHESTER ROAD
FROM WIND-BLOWN DEBRIS. TIME ESTIMATED FROM
RADAR.
0744 PM TSTM WND DMG 2 WNW GOLDSBORO 39.05N 75.82W
07/06/2020 CAROLINE MD DEPT OF HIGHWAYS
MD 313 CLOSED IN BOTH DIRECTIONS FROM
HOLLINGSWORTH CIRCLE TO JONES RD DUE TO
STORM DEBRIS. TIME ESTIMATED FROM RADAR.
0750 PM TSTM WND DMG 2 NE SKIPTON 38.92N 76.04W
07/06/2020 TALBOT MD EMERGENCY MNGR
SEVERAL TREES DOWN DUE TO STRAIGHT LINE
WINDS ON SPARKIE LANE IN QUEEN ANNE. TIME
ESTIMATED FROM RADAR.
0754 PM TSTM WND GST GOLDSBORO 39.04N 75.79W
07/06/2020 E60 MPH CAROLINE MD PUBLIC
VIDEO ON SOCIAL MEDIA OF WINDS WHICH
APPEARED TO BE AT LEAST 60 MPH. TIME
ESTIMATED FROM RADAR.
0801 PM TSTM WND DMG 2 ENE COPPERVILLE 38.83N 76.14W
07/06/2020 TALBOT MD DEPT OF HIGHWAYS
UNIONVILLE ROAD CLOSED AT TODDS CORNER ROAD
FROM WIND-BLOWN DEBRIS. TIME ESTIMATED FROM
RADAR.
0805 PM TSTM WND DMG 3 NNE EASTON 38.81N 76.06W
07/06/2020 TALBOT MD DEPT OF HIGHWAYS
STATE HIGHWAY 309 CLOSED AT BLACK DOG ALLEY
FROM WIND-BLOWN DEBRIS. TIME ESTIMATED FROM
RADAR.
0815 PM TSTM WND DMG 4 ENE ROYAL OAK 38.75N 76.13W
07/06/2020 TALBOT MD FIRE DEPT/RESCUE
TREE INTO BUILDING ON TRAVELERS REST CIRCLE.
TIME ESTIMATED FROM RADAR.
0817 PM TSTM WND DMG 2 WNW EASTON 38.78N 76.11W
07/06/2020 TALBOT MD FIRE DEPT/RESCUE
TREE INTO A STRUCTURE ON ST. MICHAELS RD.
TIME ESTIMATED FROM RADAR.
0818 PM TSTM WND DMG 5 SSE SANDTOWN 38.96N 75.69W
07/06/2020 KENT DE UTILITY COMPANY
DOWNED POWER LINES NEAR PARK BROWN ROAD NEAR
SANDTOWN. TIME ESTIMATED FROM RADAR.
0820 PM TSTM WND DMG 6 WNW HARRINGTON 38.96N 75.67W
07/06/2020 KENT DE UTILITY COMPANY
TREES AND WIRES DOWN TO THE NORTH AND WEST
OF HARRINGTON. TIME ESTIMATED FROM RADAR.
0828 PM TSTM WND DMG 1 NNW TRAPPE 38.67N 76.06W
07/06/2020 TALBOT MD PUBLIC
STATE HIGHWAY 565 NORTHBOUND PAST BACKTOWN
ROAD IN TRAPPE WAS CLOSED FROM WIND-BLOWN
DEBRIS. TIME ESTIMATED FROM RADAR.
0845 PM LIGHTNING 2 S BRIDGEVILLE 38.72N 75.60W
07/06/2020 SUSSEX DE FIRE DEPT/RESCUE
STRUCTURE FIRE DUE TO A LIGHTNING STRIKE ON
AMANDAS TEAL DR.
0846 PM TSTM WND GST 2 SSE GREENWOOD 38.78N 75.58W
07/06/2020 M59 MPH SUSSEX DE MESONET
0900 PM TSTM WND DMG 3 E SEAFORD 38.65N 75.55W
07/06/2020 SUSSEX DE UTILITY COMPANY
DOWNED TREE AND POWER LINES NEAR HOLLEY
VALLEY ROAD IN SEAFORD. TIME ESTIMATED FROM
RADAR.
0903 PM TSTM WND DMG 3 SE BRIDGEVILLE 38.71N 75.56W
07/06/2020 SUSSEX DE UTILITY COMPANY
DOWNED TREE LIMB AND POWER LINES NEAR
RITCHIE LANE IN BRIDGEVILLE. TIME ESTIMATED
FROM RADAR.
0903 PM TSTM WND DMG 4 ENE SEAFORD 38.66N 75.54W
07/06/2020 SUSSEX DE FIRE DEPT/RESCUE
DOWNED WIRES ON CONCORD POND ROAD. TIME
ESTIMATED FROM RADAR.
&&
$$
CMS/MJG/JEO/JJM
Philadelphia-Trenton Area Severe Storms
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| Figure 1: KDIX radar cross-section of the storm which produced large hail over Lower Bucks and southern Mercer counties valid at 1745 UTC 6 July 2020. 60dBz values can be seen at the 40,000 foot level, indicative of an extremely intense updraft. Due to its proximity to the radar, the highest available elevation with data for this storm at the time was around 45,000 feet. Reflectivity values well in excess of 50 dBz can be seen at that level. | Figure 2: KDIX radar reflectivity factor (top left), correlation coefficient (CC; top right), differential reflectivity (ZDR; bottom left), and vertically integrated liquid (VIL; bottom right) for the 0.8 degree elevation angle valid at 1801 UTC 6 July 2020. This is taken about 15 minutes after the cross-section in Figure 1, as the core of the storm was collapsing downward. At this time, the 0.8 degree angle was scanning only about 1700 feet above the surface. The reduced values of CC and ZDR are indicative of large hailstones, with a large area of off the scale VIL values also strongly supportive of large hail. Hail up to golf ball size was reported near Robbinsville. | Figure 3: KDIX radar reflectivity for the 0.4 degree elevation angle valid at 1816 UTC 6 July 2020. This time was notable for the especially symmetrical outflow emanating from the main cluster of thunderstorms, as well as the lone severe storm over the Pocono region which developed independently of the storms to the south. Interaction with a sea breeze boundary was also helping initiate the thunderstorms over eastern New Jersey. |
Middlesex County Severe Storm
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| Figure 4: KDIX radar cross-section of the storm which produced large hail over Middlesex County, near Edison and Metuchen, valid at 1918 UTC 6 July 2020. The white pixels represent 70dBz values at around the 20,000 foot level, which combined with values in excess of 50 dBZ at over 40,000 feet elevation are indicative of an intense updraft. The updraft can be seen tilting to the east with height. | Figure 5: Same as Figure 2 for the 1.3 degree elevation angle valid at 1919 UTC 6 July 2020. This is taken near the time of the cross-section in Figure 4, at which time the core of the storm was already descending. At this time, the 1.3 degree angle was scanning about 5500 feet above the surface. Large hail up to ping pong ball size was reported very soon after near Edison. The reduced values of CC and ZDR are indicative of large spherical hailstones. High VIL values are also present, usually associated with large hail. |
Delmarva Severe Storms
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| Figure 6: KDOX radar reflectivity factor (top left), storm relative velocity (SRM; top right), spectrum width (SW; bottom left), and correlation coefficient (CC; bottom right) valid at 2319 UTC on 6 July 2020, shortly before a tornado warning was issued for this storm. A velocity couplet is present in the SRM data, indicating rotation. Elevated SW values are also present, indicative of turbulent flow which is usually found in tornadic circulations. | Figure 7: Same as Figure 6 valid at 2332 UTC on 6 July 2020. At this time, a velocity couplet is still present, but the magnitude of rotation has weakened considerably. SW values have also decreased, and the reflectivity is taking on a bowing segment pattern which indicates continued potential for straight line wind damage, but a lesser risk of a tornado. This storm did produce considerable straight line wind damage, but no evidence of a tornado was found. |
Flash Flooding
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| Figure 8: Multi-Radar Multi-Sensor (MRMS) 6 hour radar estimated rainfall valid at 2000 UTC on 6 July 2020. A bullseye of rainfall estimates to near 5 inches can be seen over Northeast Philadelphia. This led to severe flash flooding. A comparison of radar estimates to observations revealed that radar generally did a good job estimating rainfall for this event. | Figure 9: MRMS 12 hour radar estimated rainfall valid at 0200 UTC on 7 July 2020. While most of the area received measurable rain, the amounts varied widely from place to place. In addition to the flash flooding in Northeast Philadelphia, flash flooding was reported near Morristown, NJ, Ocean City, NJ, and Reading, PA. |
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