Extremely critical fire weather conditions are expected to develop across the Great Basin and Southwest today, and exceptionally dry and windy conditions will promote rapid wildfire spread through the weekend. Scattered severe thunderstorms and heavy rain are possible across parts of the Ozark Plateau into lower Ohio Valley and parts of the northern Rockies into adjacent Great Plains. Read More >
Overview
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A cold front approached Pennsylvania from the west on Sunday, the 6th of November, and hit very mild air as it entered PA. This abnormally warm air for early November and the strong wind shear in the lowest 10 thousand feet of the atmosphere caused Severe Thunderstorms to develop during the middle of the day. |
 The storms produced widespread wind damage (mainly trees down and trees on wires) across all the of the northern half of Central PA, but the cells weakened as they moved into the Harrisburg area and the lower Susquehanna valley. A few hail reports were received, especially in eastern PA. This was one of the most widespread and damaging events of the year for Central PA. |
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| SPC Reports | Surface Front Animation | Structure Damage |
Balloon Soundings
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| 12 UTC 11/06 (7:00 am EST) Early morning - Atmosphere Primed and Ready Weak CAPE but Strong Shear |
00 UTC 11/07 (7:00 pm EST) After the Front and Storms passed through |
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| 12 UTC 11/06 (7:00 am EST) Early morning - Atmosphere Primed and Ready More Great Shear (see hodograph part |
00 UTC 11/07 (7:00 pm EST) After the Front and Storms passed through Note 50+ knot winds in lowest levels |
Photos & Video
Damage Pictures from Jackson Summit in
Tioga County
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Radar
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| 17:53 UTC (12:53 pm) | 18:05 UTC (1:05 pm) | 18:16 UTC (1:16 pm) | 18:29 UTC (1:29 pm) |
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| 19:21 UTC (2:21 pm) | 19:30 UTC (2:30 pm) | 19:34 UTC (2:34 pm) | 19:56 UTC (2:56 pm) |
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| 20:26 UTC (3:26 pm) | 20:57 UTC (3:57 pm) |
Storm Reports
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Storm Damage Survey Results
PUBLIC INFORMATION STATEMENT NATIONAL WEATHER SERVICE STATE COLLEGE PA 535 PM EDT MON NOV 7 2005 ...DOWNBURST DAMAGE DISCOVERED IN TIOGA COUNTY... A SURVEY TEAM FROM THE NATIONAL WEATHER SERVICE AND THE TIOGA COUNTY EMERGENCY MANAGEMENT AGENCY SURVEYED DAMAGE FROM STORMS THAT OCCURRED YESTERDAY (SUN NOV 6) NEAR JACKSON SUMMIT. THE STORM KNOCKED DOWN SEVERAL TREES AS WELL AS REMOVED A BARN ROOF AND SIDING FROM A HOUSE. SOME OF THE TIN BAR ROOF WAS FOUND ABOUT 150 YARDS AWAY FROM THE BARN ITSELF. WINDS WERE ESTIMATED TO BE AROUND 60 TO 70 MPH AND IT APPEARS THE DAMAGE WAS FROM A DOWNBURST. THERE WAS NO EVIDENCE OF A TORNADIC STORM. DOWNBURST STORMS CAN BE JUST AS DANGEROUS AS TORNADIC STORMS. WIND SPEEDS IN DOWNBURST CAN REACH WELL ABOVE 100 MPH AND CAN DAMAGE OR DESTROY STRUCTURES. ANYTIME A SEVERE THUNDERSTORM OR TORNADO WARNING IS ISSUED...SEEK SHELTER IN A STURDY STRUCTURE AND BE BELOW GROUND IF POSSIBLE. $$ ONDREJIK/JUNG |
Preliminary Local Storm Report
from Sunday Evening
NWUS51 KCTP 070117
LSRCTP
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE STATE COLLEGE PA
816 PM EST SUN NOV 06 2005
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0220 PM TSTM WND DMG RIDGWAY 41.43N 78.73W
11/06/2005 ELK PA LAW ENFORCEMENT
TREES AND WIRES DOWN COUNTYWIDE
0225 PM TSTM WND DMG PORT ALLEGANY 41.81N 78.28W
11/06/2005 MCKEAN PA LAW ENFORCEMENT
TREES/POWER LINES DOWN ON MAIN STREET
0238 PM TSTM WND DMG DUBOIS 41.12N 78.76W
11/06/2005 CLEARFIELD PA TRAINED SPOTTER
TREES AND WIRES DOWN
0248 PM TSTM WND DMG PENFIELD 41.21N 78.60W
11/06/2005 CLEARFIELD PA LAW ENFORCEMENT
WIRES DOWN AND TREE ON STRUCTURE
0255 PM TSTM WND DMG COUDERSPORT 41.77N 78.01W
11/06/2005 POTTER PA LAW ENFORCEMENT
MULTIPLE TREES DOWN
0300 PM TSTM WND DMG EMPORIUM 41.51N 78.24W
11/06/2005 CAMERON PA LAW ENFORCEMENT
TREES DOWN ON ROADS CAUSING NUMEROUS ACCIDENTS
0310 PM TSTM WND DMG EMPORIUM 41.51N 78.24W
11/06/2005 CAMERON PA TRAINED SPOTTER
TREES DOWN AND ROADS CLOSED IN CAMERON COUNTY. ALSO HEARD
OF SIMILAR DAMAGE IN ELK COUNTY.
0317 PM TSTM WND DMG COUDERSPORT 41.77N 78.01W
11/06/2005 POTTER PA LAW ENFORCEMENT
TREES DOWN
0319 PM HAIL HARRISON VALLEY 41.92N 77.67W
11/06/2005 1.00 INCH POTTER PA LAW ENFORCEMENT
HALF INCH TO ONE INCH SIZED HAIL
0330 PM TSTM WND GST GALETON 41.73N 77.64W
11/06/2005 60 MPH POTTER PA CO-OP OBSERVER
60 MPH GUST AND PEA SIZE HAIL
0335 PM TSTM WND DMG BROCKPORT 41.27N 78.73W
11/06/2005 ELK PA LAW ENFORCEMENT
TREES AND WIRES DOWN
0339 PM TSTM WND DMG 7 S EMPORIUM 41.41N 78.24W
11/06/2005 CAMERON PA LAW ENFORCEMENT
TREES AND WIRES DOWN NEAR CALEDONIA
0345 PM TSTM WND DMG TAMARACK 41.42N 77.85W
11/06/2005 CLINTON PA LAW ENFORCEMENT
TREES DOWN BLOCKING ONE LANE OF RT 144
0346 PM TSTM WND DMG HOLLIDAYSBURG 40.43N 78.39W
11/06/2005 BLAIR PA LAW ENFORCEMENT
TREES DOWN
0355 PM TSTM WND DMG DUNCANSVILLE 40.43N 78.43W
11/06/2005 BLAIR PA LAW ENFORCEMENT
TREES DOWN
0400 PM TSTM WND DMG WELLSBORO 41.75N 77.30W
11/06/2005 TIOGA PA EMERGENCY MNGR
ROOF PARTIALLY OFF THE AGWAY STORE
0401 PM TSTM WND DMG KNOXVILLE 41.96N 77.44W
11/06/2005 TIOGA PA LAW ENFORCEMENT
ROOF OFF BARN
0402 PM HAIL MANSFIELD 41.81N 77.08W
11/06/2005 0.88 INCH TIOGA PA TRAINED SPOTTER
HAIL COVERING GROUND
0403 PM TSTM WND DMG 5 S WESTFIELD 41.85N 77.54W
11/06/2005 TIOGA PA LAW ENFORCEMENT
TREES DOWN NEAR SABINSVILLE
0404 PM HAIL MANSFIELD 41.81N 77.08W
11/06/2005 0.75 INCH TIOGA PA TRAINED SPOTTER
PENNY SIZE HAIL
0409 PM TSTM WND DMG BELLEFONTE 40.91N 77.77W
11/06/2005 CENTRE PA LAW ENFORCEMENT
TREES DOWN
0410 PM TSTM WND DMG HOLLIDAYSBURG 40.43N 78.39W
11/06/2005 BLAIR PA LAW ENFORCEMENT
TREES DOWN
0410 PM TSTM WND DMG HUNTINGDON 40.50N 78.01W
11/06/2005 HUNTINGDON PA LAW ENFORCEMENT
TREE LIMB ON VAN IN HUNTINGDON BORO
0415 PM TSTM WND DMG MILLERTON 41.98N 76.95W
11/06/2005 TIOGA PA LAW ENFORCEMENT
POSSIBLE TORNADO DAMAGE IN JACKSON TWP...MULTIPLE TREES
DOWN...TWISTED DEBRIS
0415 PM TSTM WND DMG MANSFIELD 41.81N 77.08W
11/06/2005 TIOGA PA LAW ENFORCEMENT
TREES DOWN
0425 PM TSTM WND DMG WATERVILLE 41.32N 77.35W
11/06/2005 LYCOMING PA LAW ENFORCEMENT
MULTIPLE TREES DOWN IN PINE CREEK VALLEY
0430 PM TSTM WND DMG LAMAR 41.01N 77.51W
11/06/2005 CLINTON PA LAW ENFORCEMENT
TREES DOWN
0430 PM TSTM WND DMG LEWISTOWN 40.60N 77.57W
11/06/2005 MIFFLIN PA LAW ENFORCEMENT
TREES DOWN ACROSS ALL OF MIFFLIN COUNTY
0440 PM TSTM WND DMG 5 NE LOCK HAVEN 41.19N 77.39W
11/06/2005 CLINTON PA LAW ENFORCEMENT
TREES DOWN IN DUNSTABLE TWP
0440 PM TSTM WND DMG WILLIAMSPORT 41.24N 77.02W
11/06/2005 LYCOMING PA LAW ENFORCEMENT
TREES DOWN
0455 PM TSTM WND DMG MIFFLINBURG 40.92N 77.05W
11/06/2005 UNION PA LAW ENFORCEMENT
WIRES DOWN
0459 PM TSTM WND DMG WILLIAMSPORT 41.24N 77.02W
11/06/2005 LYCOMING PA LAW ENFORCEMENT
TREES DOWN
0500 PM TSTM WND DMG 5 W LEWISBURG 40.96N 76.99W
11/06/2005 UNION PA LAW ENFORCEMENT
TREES ON WIRES
0510 PM TSTM WND DMG HUGHESVILLE 41.24N 76.73W
11/06/2005 LYCOMING PA LAW ENFORCEMENT
TREES DOWN AND METAL ROOFING ON WIRES
0510 PM TSTM WND DMG MILTON 41.01N 76.85W
11/06/2005 NORTHUMBERLAND PA EMERGENCY MNGR
TREES ON HOUSE...ALSO TREES AND WIRES DOWN AT ANOTHER
LOCATION IN MILTON
0516 PM TSTM WND DMG LAPORTE 41.42N 76.49W
11/06/2005 SULLIVAN PA LAW ENFORCEMENT
TREES DOWN ON RT 154
0519 PM TSTM WND DMG 5 W DUSHORE 41.53N 76.50W
11/06/2005 SULLIVAN PA LAW ENFORCEMENT
TREES ON CABIN CAUSED ROOF COLLAPSE IN CHERRY MILLS
0532 PM TSTM WND DMG 7 N DANVILLE 41.06N 76.61W
11/06/2005 MONTOUR PA LAW ENFORCEMENT
TREES ON WIRES IN TWO LOCATIONS IN VALLEY TWP
&&
$$
MMD
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