Overview
A line of intense supercell thunderstorms developed over northeast Nebraska during the afternoon hours of Friday, June 16. These storms progressed toward the south and east through the evening, progressively morphing into a sweeping line of storms with embedded areas of both supercells and intense bow echoes. While the entire line produced widespread reports of wind damage and hail across a large portion of southwest Iowa and eastern Nebraska, the most intense activity produced hurricane-force winds of 80-110 mph, hail larger than golf balls, and several tornadoes. Damage was reported in several counties across southwest Iowa and eastern Nebraska, with significant damage to homes impacted by tornadoes and widespread, substantial tree and crop damage.
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Radar Reflectivity Animation for the Event |
near Seward, Nebraska | near Battle Creek, Nebraska | near Bellevue, Nebraska |
Tornadoes:
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Tornado #1 - Bellevue, Nebraska
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Tornado #2 - Offutt AFB, Nebraska
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Tornado #3 - Hoskins, Nebraska
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Tornado #4 - Madison, Nebraska
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Tornado #5 - Lincoln, Nebraska
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Tornado #6 - Meadow Grove, Nebraska
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The Enhanced Fujita (EF) Scale classifies tornadoes into the following categories:
EF0 Weak 65-85 mph |
EF1 Moderate 86-110 mph |
EF2 Significant 111-135 mph |
EF3 Severe 136-165 mph |
EF4 Extreme 166-200 mph |
EF5 Catastrophic 200+ mph |
Wind & Hail:
Public Information Statement National Weather Service Omaha/Valley NE 908 AM CDT Wed Jun 21 2017 ...NWS DAMAGE SURVEY FOR JUNE 16, 2017 SEVERE THUNDERSTORM WIND EVENT... .Southern Sarpy County and Surrounding Areas Wind Damage... Peak wind: 110-120 mph based on damage indicators Direction: From the Northwest Fatalities: 0 Injuries: 0 Start date: June 16, 2017 Start time: 7:40 PM CDT End date: June 16, 2017 End time: 8:30 PM CDT A powerful group of thunderstorms produced widespread winds of 60 to 80 mph across much of the area surrounding southern Sarpy county. Within that broad area of wind, several areas of very intense wind damage occurred with damage indicators suggesting peak wind speeds of 100 to 120 mph from the north and northwest. Perhaps the most intense damage was noted from approximately 3 miles northwest of Springfield to just west of Springfield to 3 miles south of Springfield where very large grain bins were dislodged and tumbled nearly a half mile, many power poles were snapped, and widespread significant tree damage occurred. Peak winds in this area were likely in the 110-120 mph range. Another area of more intense damage occurred in and near the Maha Scout Camp at 63rd street and the Platte River. Tree damage in this area indicated smaller areas of locally intense microburst winds which likely approached 110 mph. Approximately 50 campers were present during the storm with no injuries reported. Additional areas of very intense winds occurred in southeast Sarpy county and adjacent northeast Cass county and western Mills county Iowa to the south of the EF-2 tornado track. Winds in these areas likely exceeded 100 mph. Special thanks to local emergency management for assisting NWS storm damage survey efforts for this expansive severe weather event. .Gage County and Southeast Saline County Wind Damage... Peak wind: 100-115 mph based on damage indicators Direction: From the North and Northwest Fatalities: 0 Injuries: 0 Start date: June 16, 2017 Start time: 8:50 PM CDT End date: June 16, 2017 End time: 10:10 PM CDT A very intense supercell thunderstorm tracked from eastern Saline county southeast across Gage county. This storm produced 60-80 mph winds throughout much of its track with a narrower band of 80-115 mph winds associated with the western rear flank downdraft portion of the storm. These most intense winds tracked from near Wilber to De Witt to west Beatrice to Big Indian Creek Reservoir. Damage indicators and radar data suggest that within this several-mile-wide track there were strong pulses of wind which produced the most intense damage. One of the most intense areas was on the southwest side of Wilber where part of a roof was removed and blown more than 100 yards and a storm spotter truck was blown sideways approximately 3 feet. Another area of more intense damage was on the far west side of Beatrice where substantial tree damage occurred as well as some roof damage to homes and businesses. The final area of very intense damage occurred approximately 3 miles northwest of Blue Springs where a barn was destroyed, the roof of a large shed caved in, several power poles were snapped, and significant tree damage occurred. Special thanks to local emergency management for assisting NWS storm damage survey efforts for this expansive severe weather event. NOTE: The information in this statement is PRELIMINARY and subject to change pending final review of the events and publication in NWS Storm Data.
Wind, Hail and Tornado Reports (from the SPC) |
PUBLIC INFORMATION STATEMENT NATIONAL WEATHER SERVICE OMAHA/VALLEY NE 253 AM CDT SAT JUN 17 2017 ..WIND REPORTS LOCATION SPEED TIME/DATE LAT/LON/COMMENTS 2 NW FREMONT 110 MPH 0725 PM 06/16 MEASURED(CHASER) OMAHA 104 MPH 0725 PM 06/16 MEASURED(SPOTTER) LINCOLN AIRPORT 87 MPH 0837 PM 06/16 40.85N/96.76W VALLEY NWS 87 MPH 0736 PM 06/16 MEASURED BEATRICE AIRPORT 85 MPH 0955 PM 06/16 40.30N/96.75W HOOPER 80 MPH 0710 PM 06/16 ESTIMATED(SPOTTER) BELLEVUE 80 MPH 0810 PM 06/16 ESTIMATED(PUBLIC) 5 W BEATRICE 80 MPH 0934 PM 06/16 MEASURED(SPOTTER) 2 WNW WEST POINT 74 MPH 0635 PM 06/16 41.85N/96.75W NORFOLK AIRPORT 74 MPH 0538 PM 06/16 41.99N/97.43W 4 SSW GRETNA 74 MPH 0779 PM 06/16 MEASURED 2 ENE AVOCA 70 MPH 0850 PM 06/16 41.50N/95.29W MALCOLM 70 MPH 0835 PM 06/16 ESTIMATED(AMRADIO) 3 W MILLARD 67 MPH 0800 PM 06/16 41.20N/96.22W 4 E NEBRASKA CITY 66 MPH 0902 PM 06/16 40.69N/95.78W WILBER 65 MPH 0913 PM 06/16 MEASURED(CHASER) 4 S DORCHESTER 63 MPH 0857 PM 06/16 MEASURED(CHASER) HARLAN AIRPORT 62 MPH 0835 PM 06/16 41.59N/95.34W OMAHA EPPLEY AIRFIELD 60 MPH 0804 PM 06/16 41.30N/95.89W 2 WSW FAIRBURY 58 MPH 1157 PM 06/16 40.13N/97.21W GRETNA (4 ENE) 55 MPH 0757 PM 06/16 POWER WENT OUT HARBINE 55 MPH 0812 PM 06/16 40.19N/96.98W MILLARD 54 MPH 0759 PM 06/16 41.21N/96.17W 2 WSW OFFUTT AFB 53 MPH 0803 PM 06/16 41.10N/95.96W 1 S WASHINGTON 53 MPH 0755 PM 06/16 41.37N/96.21W FREMONT AIRPORT 52 MPH 0715 PM 06/16 41.45N/96.52W 2 N FIRTH 51 MPH 0915 PM 06/16 40.57N/96.61W 4 NNE MEMPHIS 51 MPH 0800 PM 06/16 41.16N/96.41W 4 WSW KENNARD 50 MPH 0725 PM 06/16 41.44N/96.27W MILLARD AIRPORT 49 MPH 0755 PM 06/16 41.20N/96.12W BLAIR AIRPORT 48 MPH 0755 PM 06/16 41.41N/96.11W 3 E FRIEND 48 MPH 0849 PM 06/16 40.66N/97.22W PISGAH 48 MPH 0811 PM 06/16 41.83N/95.93W NEBRASKA CITY AIRPORT 47 MPH 0915 PM 06/16 40.61N/95.87W 1 WNW DUNCAN 47 MPH 0715 PM 06/16 41.40N/97.52W OMAHA 46 MPH 0814 PM 06/16 41.26N/96.01W CLARINDA AIRPORT 46 MPH 0935 PM 06/16 40.72N/95.03W 3 E PLYMOUTH 46 MPH 0935 PM 06/16 40.31N/96.93W WAHOO AIRPORT 44 MPH 0730 PM 06/16 41.23N/96.60W RED OAK AIRPORT 43 MPH 0855 PM 06/16 41.01N/95.26W 5 SSW BLENCOE 43 MPH 0650 PM 06/16 41.87N/96.10W 2 ENE GRETNA 42 MPH 0755 PM 06/16 41.16N/96.19W 3 E JULIAN 41 MPH 0915 PM 06/16 40.53N/95.80W 2 S MURRAY 41 MPH 0820 PM 06/16 40.89N/95.93W JULIAN 40 MPH 0927 PM 06/16 40.51N/95.86W COUNCIL BLUFFS AIRPORT 39 MPH 0815 PM 06/16 41.26N/95.76W 2 ESE OMAHA 39 MPH 0810 PM 06/16 41.24N/95.97W TEKAMAH AIRPORT 39 MPH 0716 PM 06/16 41.76N/96.18W 5 N ROCA 38 MPH 0847 PM 06/16 40.73N/96.67W SHENANDOAH AIRPORT 38 MPH 0855 PM 06/16 40.77N/95.41W ALBION AIRPORT 37 MPH 0555 PM 06/16 41.73N/98.06W 3 NNE GRETNA 37 MPH 0753 PM 06/16 41.18N/96.23W 2 E ITHACA 37 MPH 0800 PM 06/16 41.15N/96.49W 2 SSE EAGLE 36 MPH 0954 PM 06/16 40.78N/96.42W FALLS CITY AIRPORT 36 MPH 1002 PM 06/16 40.08N/95.59W PLATTSMOUTH AIRPORT 36 MPH 0815 PM 06/16 40.95N/95.92W OBSERVATIONS ARE COLLECTED FROM A VARIETY OF SOURCES WITH VARYING EQUIPMENT AND EXPOSURES. WE THANK ALL VOLUNTEER WEATHER OBSERVERS FOR THEIR DEDICATION. NOT ALL DATA LISTED ARE CONSIDERED OFFICIAL.
Photos
Sarpy and Mills County Damage Photos:
(source: NWS Omaha) | (source: NWS Omaha) | (source: NWS Omaha) | (source: NWS Omaha) |
(source: NWS Omaha) | (source: NWS Omaha) | (source: NWS Omaha) | (source: NWS Omaha) |
(source: NWS Omaha) | (source: NWS Omaha) | (source: NWS Omaha) | (source: NWS Omaha) |
Wayne County (near Hoskins) Damage Photos:
(source: NWS Omaha) | (source: NWS Omaha) | (source: NWS Omaha) |
Gage County Damage Photos:
(source: NWS Omaha) | (source: NWS Omaha) | (source: NWS Omaha) |
(source: NWS Omaha) |
Bin damage in Holmesville (source: NWS Omaha) |
Hooper Damage Photos:
(source: NWS Omaha) | (source: NWS Omaha) |
Radar Data
Reflectivity Loop | Storm-Relative Velocity Loop | Base Velocity Loop | Reflectivity Mosaic |
GOES-16 Visible Satellite
GOES-16 visible satellite loop from 3 PM to just before 9 PM. These data are considered preliminary and non-operational. |
Storm Reports
PRELIMINARY LOCAL STORM REPORT...SUMMARY NATIONAL WEATHER SERVICE OMAHA/VALLEY NEBRASKA 121 AM CDT SAT JUN 17 2017 ..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON... ..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE.... ..REMARKS.. 0423 PM HAIL BRUNSWICK 42.34N 97.97W 06/16/2017 M1.00 INCH ANTELOPE NE CO-OP OBSERVER 0447 PM TORNADO 8 N MEADOW GROVE 42.14N 97.75W 06/16/2017 PIERCE NE TRAINED SPOTTER 0458 PM HAIL 6 ENE NELIGH 42.18N 97.93W 06/16/2017 M1.25 INCH ANTELOPE NE STORM CHASER 0515 PM TSTM WND DMG 4 NE HOSKINS 42.15N 97.25W 06/16/2017 WAYNE NE PUBLIC GRAIN BIN DESTROYED. 0518 PM HAIL 6 W NORFOLK 42.03N 97.54W 06/16/2017 M1.75 INCH MADISON NE TRAINED SPOTTER 0523 PM HAIL 1 N BATTLE CREEK 42.01N 97.60W 06/16/2017 M1.75 INCH MADISON NE TRAINED SPOTTER 0532 PM TORNADO 3 ESE HOSKINS 42.10N 97.25W 06/16/2017 WAYNE NE EMERGENCY MNGR NEAR THE WAYNE/STANTON COUNTY LINE, FARM HIT AROUND 532 PM AND ENDED BY 537 PM. A SECOND TORNADO WAS SEEN TO THE SOUTH IN PASTURE LAND BUT DID NOT SEEM TO HIT ANYTHING. 0537 PM TSTM WND GST 4 S NORFOLK 41.98N 97.43W 06/16/2017 M71.00 MPH MADISON NE ASOS 0538 PM TSTM WND GST 4 S NORFOLK 41.98N 97.43W 06/16/2017 M74.00 MPH MADISON NE ASOS 0549 PM HAIL 5 S NORFOLK 41.96N 97.42W 06/16/2017 M1.00 INCH MADISON NE STORM CHASER 0553 PM TORNADO 6 E MADISON 41.82N 97.35W 06/16/2017 STANTON NE STORM CHASER 0556 PM TORNADO 6 E MADISON 41.83N 97.34W 06/16/2017 STANTON NE STORM CHASER INTERMITTENT VORTICES. 0615 PM HAIL NEWMAN GROVE 41.75N 97.78W 06/16/2017 E1.50 INCH MADISON NE PUBLIC 0618 PM HAIL 5 S LINDSAY 41.63N 97.69W 06/16/2017 M1.00 INCH PLATTE NE STORM CHASER 0623 PM TSTM WND DMG 1 N CRESTON 41.72N 97.36W 06/16/2017 PLATTE NE STORM CHASER ROOF BLOWN OFF BUILDING. WINDS ESTIMATED AT 60 MPH. 0630 PM HAIL LINDSAY 41.70N 97.69W 06/16/2017 M1.00 INCH PLATTE NE NWS EMPLOYEE 0645 PM HAIL 8 NE MONROE 41.56N 97.49W 06/16/2017 E1.25 INCH PLATTE NE STORM CHASER 0649 PM HAIL 5 NNE GENOA 41.51N 97.70W 06/16/2017 M2.00 INCH PLATTE NE STORM CHASER 0650 PM HAIL 5 NNE GENOA 41.51N 97.70W 06/16/2017 M2.50 INCH PLATTE NE STORM CHASER 0654 PM HAIL MONROE 41.47N 97.60W 06/16/2017 M1.75 INCH PLATTE NE EMERGENCY MNGR 0700 PM HAIL COLUMBUS 41.43N 97.36W 06/16/2017 E1.00 INCH PLATTE NE PUBLIC 0710 PM TSTM WND GST HOOPER 41.61N 96.55W 06/16/2017 E80.00 MPH DODGE NE TRAINED SPOTTER NUMEROUS STREET SIGNS BLOWN DOWN. 0712 PM TSTM WND GST HOOPER 41.61N 96.55W 06/16/2017 E75.00 MPH DODGE NE TRAINED SPOTTER 0714 PM TSTM WND DMG FREMONT 41.44N 96.49W 06/16/2017 DODGE NE TRAINED SPOTTER TREE BRANCHES BLOWN DOWN. 0714 PM TSTM WND GST 3 ENE HOOPER 41.63N 96.50W 06/16/2017 E80.00 MPH DODGE NE STORM CHASER 0715 PM TSTM WND DMG 5 N FREMONT 41.51N 96.49W 06/16/2017 DODGE NE TRAINED SPOTTER TREES AND POWER LINES BLOWN DOWN. 0717 PM TSTM WND GST FREMONT 41.44N 96.49W 06/16/2017 E60.00 MPH DODGE NE TRAINED SPOTTER 0723 PM TSTM WND DMG FREMONT 41.44N 96.49W 06/16/2017 DODGE NE TRAINED SPOTTER SEVERAL TREES AND POWERLINES DOWN 0725 PM TSTM WND GST 2 NW FREMONT 41.46N 96.52W 06/16/2017 M110 MPH DODGE NE STORM CHASER 0732 PM TSTM WND GST 1 NW VALLEY 41.32N 96.36W 06/16/2017 M63.00 MPH DOUGLAS NE OFFICIAL NWS OBS AT THE NWS OFFICE. 0735 PM TSTM WND DMG YUTAN 41.24N 96.40W 06/16/2017 SAUNDERS NE NWS EMPLOYEE FENCE BLOWN DOWN. 0735 PM TSTM WND GST OMAHA 41.26N 96.01W 06/16/2017 M104 MPH DOUGLAS NE TRAINED SPOTTER 173RD AND F. NUMEROUS TREES DOWN AND TRANSFORMERS 0736 PM TSTM WND GST 1 NW VALLEY 41.32N 96.36W 06/16/2017 M88.00 MPH DOUGLAS NE OFFICIAL NWS OBS AT THE NWS OFFICE. 0740 PM TSTM WND GST ELKHORN 41.28N 96.24W 06/16/2017 E70.00 MPH DOUGLAS NE NWS EMPLOYEE 0740 PM TSTM WND GST LITTLE SIOUX 41.81N 96.03W 06/16/2017 E60.00 MPH HARRISON IA CO-OP OBSERVER 0748 PM TSTM WND GST 3 NNE GRETNA 41.17N 96.21W 06/16/2017 E85.00 MPH SARPY NE PUBLIC 0750 PM TSTM WND DMG 2 W MILLARD 41.21N 96.19W 06/16/2017 DOUGLAS NE PUBLIC TREES DOWN. 0750 PM TSTM WND GST DAVID CITY 41.25N 97.13W 06/16/2017 E50.00 MPH BUTLER NE EMERGENCY MNGR 0753 PM TSTM WND DMG ASHLAND 41.04N 96.37W 06/16/2017 SAUNDERS NE STORM CHASER NUMEROUS TREES DOWN AND DAMAGE TO COUNTRY CLUB 0755 PM TSTM WND GST GRETNA 41.14N 96.24W 06/16/2017 E70.00 MPH SARPY NE NWS EMPLOYEE 0755 PM TSTM WND GST GRETNA 41.14N 96.24W 06/16/2017 E70.00 MPH SARPY NE TRAINED SPOTTER 0755 PM TSTM WND DMG OMAHA 41.26N 96.01W 06/16/2017 DOUGLAS NE TRAINED SPOTTER 132ND AND HARRISON AREA. BIG TREES DOWN ALONG WITH SEVERAL FENCES IN THE NEIGHBOOD. 0755 PM TSTM WND DMG WOODBINE 41.74N 95.71W 06/16/2017 HARRISON IA EMERGENCY MNGR ROOF BLOWN OFF INDUSTRIAL BUILDING. WIDESPREAD TREE DAMAGE, IN TOWN, AND WEST OF TOWN. 0758 PM TSTM WND GST 1 S GRETNA 41.13N 96.24W 06/16/2017 E80.00 MPH SARPY NE TRAINED SPOTTER 0759 PM TSTM WND GST OMAHA 41.26N 96.01W 06/16/2017 M72.00 MPH DOUGLAS NE TRAINED SPOTTER 132ND AND CORNHUSKER 0759 PM TSTM WND GST 4 SSW GRETNA 41.09N 96.27W 06/16/2017 M74.00 MPH SARPY NE TRAINED SPOTTER 0800 PM TSTM WND DMG COUNCIL BLUFFS 41.24N 95.86W 06/16/2017 POTTAWATTAMIE IA PUBLIC ROOF DAMAGED FROM 5 INCH LIMB BLOWN ONTO HOME. 0800 PM TSTM WND DMG PAPILLION 41.16N 96.04W 06/16/2017 SARPY NE TRAINED SPOTTER WIDEPSREAD TREE AND FENCE DAMAGE. 0804 PM TSTM WND GST 5 NNW COUNCIL BLUFFS 41.30N 95.90W 06/16/2017 M60.00 MPH DOUGLAS NE ASOS AT OMAHA AIRPORT. 0806 PM TSTM WND GST PAPILLION 41.16N 96.04W 06/16/2017 E70.00 MPH SARPY NE TRAINED SPOTTER 0810 PM TSTM WND DMG S OFFUTT AFB 41.11N 95.92W 06/16/2017 SARPY NE AMATEUR RADIO TREES TOPPED AND CONSIDERABLE ROOF DAMAGE. 0810 PM TSTM WND DMG 1 SW OFFUTT AFB 41.10N 95.93W 06/16/2017 SARPY NE BROADCAST MEDIA SIGNIFICANT DAMAGE TO MULTIPLE HOMES IN THE HYDA HILLS NEIGHBORHOOD. 0810 PM TSTM WND GST BELLEVUE 41.16N 95.92W 06/16/2017 E80.00 MPH SARPY NE PUBLIC 0815 PM TSTM WND DMG BRANCHED OAK STATE RECR 40.97N 96.87W 06/16/2017 LANCASTER NE AMATEUR RADIO MAJOR TREE DAMAGE. 0815 PM TSTM WND DMG PLATTSMOUTH 41.01N 95.89W 06/16/2017 CASS NE EMERGENCY MNGR *** 4 INJ *** SUBSTANTIAL DAMAGE IN THE TOWN. TREES DOWN ON MOST ROADS. POWERLINES BLOWN DOWN. NO POWER BETWEEN LOUISVILLE AND PLATTSMOUTH AND WEEPING WATER. COUNTY MAINTENANCE BUILDING DESTROYED. SEVERAL FARMSTEADS ALONG HIGHWAY 66 DESTROYED. 3 INJURIES IN PLATTSMOUTH, 1 INJURY AT LOUISVILLE STATE PARK. TIME ESTIMATED. 0815 PM TSTM WND DMG 3 W PACIFIC JUNCTION 41.02N 95.86W 06/16/2017 MILLS IA TRAINED SPOTTER LARGE TREES BLOWN DOWN. WINDOWS ON HOUSE BROKEN. 0821 PM HAIL FRIEND 40.65N 97.28W 06/16/2017 M0.88 INCH SALINE NE EMERGENCY MNGR 0825 PM HAIL GARLAND 40.94N 96.99W 06/16/2017 M1.00 INCH SEWARD NE EMERGENCY MNGR 0835 PM TSTM WND DMG 2 S THURMAN 40.79N 95.75W 06/16/2017 FREMONT IA TRAINED SPOTTER VERY LARGE TREES BLOCKING THE ROAD 0835 PM HAIL PLEASANT DALE 40.79N 96.93W 06/16/2017 M2.00 INCH SEWARD NE TRAINED SPOTTER 0835 PM TSTM WND GST MALCOLM 40.91N 96.87W 06/16/2017 E70.00 MPH LANCASTER NE AMATEUR RADIO 0835 PM TSTM WND GST 5 S HARLAN 41.58N 95.34W 06/16/2017 M62.00 MPH SHELBY IA AWOS 0837 PM TSTM WND GST 4 NW LINCOLN 40.86N 96.75W 06/16/2017 M87.00 MPH LANCASTER NE ASOS AT THE LINCOLN AIRPORT. 0838 PM TSTM WND DMG 3 W OAKLAND 41.31N 95.45W 06/16/2017 POTTAWATTAMIE IA PUBLIC TREES DOWN ONTO ROAD. TIME ESTIMATED 0840 PM HAIL LINCOLN 40.82N 96.69W 06/16/2017 E2.50 INCH LANCASTER NE EMERGENCY MNGR ALSO 60 MPH WIND. 0840 PM TSTM WND DMG LINCOLN 40.82N 96.69W 06/16/2017 LANCASTER NE AMATEUR RADIO SEVERAL SEMIS TIPPED OVER JUST EAST OF 27TH STREET ON I-80. WATER OVER ROADS JUST SOUTH OF THERE AS WELL. 0848 PM HAIL LINCOLN 40.82N 96.69W 06/16/2017 M1.00 INCH LANCASTER NE PUBLIC AT 48TH AND HIGHWAY 2. 60 MPH WINDS ALSO. 0849 PM TSTM WND DMG LINCOLN 40.82N 96.69W 06/16/2017 LANCASTER NE EMERGENCY MNGR NUMEORUS REPORTS OF TREES AND POWER LINES DOWN. 0849 PM TSTM WND DMG 3 E THURMAN 40.82N 95.69W 06/16/2017 FREMONT IA TRAINED SPOTTER SEVERAL TREES DOWN. ESTIMATED 60 MPH 0850 PM TSTM WND DMG LINCOLN 40.82N 96.69W 06/16/2017 LANCASTER NE AMATEUR RADIO SEVERAL SEMIS FLIPPED IN LINCOLN. 0857 PM TSTM WND GST 4 S DORCHESTER 40.59N 97.11W 06/16/2017 M63.00 MPH SALINE NE STORM CHASER 0904 PM TSTM WND GST 5 S DORCHESTER 40.58N 97.11W 06/16/2017 E60.00 MPH SALINE NE STORM CHASER 0905 PM TSTM WND DMG WILBER 40.48N 96.96W 06/16/2017 SALINE NE EMERGENCY MNGR TWO HOMES DAMAGED FROM WIND ON WEST SIDE OF TOWN. ALSO A COUPLE OF HOMES HAD LIGHTNING DAMAGE. 0905 PM TSTM WND DMG CLATONIA 40.46N 96.85W 06/16/2017 GAGE NE EMERGENCY MNGR MOBILE HOME LOST ROOF, NORTH SIDE OF TOWN. TIME ESTIMATED. 0905 PM TSTM WND DMG GRANT 41.14N 94.99W 06/16/2017 MONTGOMERY IA EMERGENCY MNGR TREES AND POWER LINES DOWN. TIME ESTIMATED 0906 PM HAIL CRETE 40.63N 96.96W 06/16/2017 M1.25 INCH SALINE NE PUBLIC 0913 PM TSTM WND GST WILBER 40.48N 96.96W 06/16/2017 M65.00 MPH SALINE NE STORM CHASER 0915 PM TSTM WND DMG 2 E STERLING 40.46N 96.34W 06/16/2017 JOHNSON NE TRAINED SPOTTER VERY LARGE TREES UPROOTED. POWER LINES BLOWN DOWN. 0920 PM HAIL 8 S FRIEND 40.54N 97.28W 06/16/2017 M0.88 INCH SALINE NE TRAINED SPOTTER UP TO NICKEL SIZE HAIL 0921 PM HAIL 8 S FRIEND 40.54N 97.28W 06/16/2017 E0.88 INCH SALINE NE TRAINED SPOTTER 0934 PM TSTM WND GST 5 W BEATRICE 40.27N 96.84W 06/16/2017 M80.00 MPH GAGE NE TRAINED SPOTTER HALF INCH HAIL. SUBSTANTIAL TREE AND POWER LINE DAMAGE. PIVOTS FLIPPED. 0935 PM TSTM WND DMG 5 NW BEATRICE 40.32N 96.81W 06/16/2017 GAGE NE STORM CHASER TREES BLOWN DOWN ONTO THE ROAD. 0935 PM TSTM WND DMG BEATRICE 40.27N 96.75W 06/16/2017 GAGE NE EMERGENCY MNGR TREE AND POWER LINE DAMAGE IN TOWN. TIME ESTIMATED 0939 PM TSTM WND GST 6 NW BEATRICE 40.33N 96.83W 06/16/2017 E100 MPH GAGE NE STORM CHASER 0940 PM TSTM WND DMG 6 E PLYMOUTH 40.30N 96.87W 06/16/2017 GAGE NE STORM CHASER POWER POLES AND TREES SNAPPED. 0942 PM TSTM WND GST 6 E PLYMOUTH 40.30N 96.87W 06/16/2017 E80.00 MPH GAGE NE STORM CHASER 0942 PM HEAVY RAIN SIDNEY 40.75N 95.64W 06/16/2017 M3.00 INCH FREMONT IA TRAINED SPOTTER 0947 PM TSTM WND GST 3 N BEATRICE 40.31N 96.75W 06/16/2017 M85.00 MPH GAGE NE ASOS 0948 PM TSTM WND DMG PERU 40.48N 95.73W 06/16/2017 NEMAHA NE EMERGENCY MNGR MEDIUM LIMBS BLOWN DOWN. 1011 PM HAIL 3 E ALEXANDRIA 40.25N 97.33W 06/16/2017 E1.75 INCH JEFFERSON NE TRAINED SPOTTER 1019 PM HAIL 6 NW FAIRBURY 40.20N 97.26W 06/16/2017 E1.75 INCH JEFFERSON NE EMERGENCY MNGR 1021 PM HAIL 6 W FAIRBURY 40.14N 97.29W 06/16/2017 M1.00 INCH JEFFERSON NE TRAINED SPOTTER 1026 PM HAIL 4 W FAIRBURY 40.14N 97.25W 06/16/2017 E1.75 INCH JEFFERSON NE EMERGENCY MNGR 1027 PM TSTM WND GST 2 SW FAIRBURY 40.12N 97.20W 06/16/2017 M58.00 MPH JEFFERSON NE EMERGENCY MNGR CRYSTAL SPRINGS WEATHER STATION. 1045 PM HAIL REYNOLDS 40.06N 97.34W 06/16/2017 E2.75 INCH JEFFERSON NE TRAINED SPOTTER GOLF BALL TO BASEBALL SIZE HAIL. &&
Rain Reports
Environment
Synoptic Overview at 12z (courtesy of SPC)
Figure 1: 250-mb analysis | Figure 2: 300-mb analysis | Figure 3: 500-mb analysis |
Figure 4: 700-mb analysis | Figure 5: 850-mb analysis | Figure 6: 925-mb analysis |
Synoptic Overview at 00z (courtesy of SPC)
Figure 7: 250-mb analysis | Figure 8: 300-mb analysis | Figure 9: 500-mb analysis |
Figure 10: 700-mb analysis | Figure 11: 850-mb analysis | Figure 12: 925-mb analysis |
Surface Map (courtesy of WPC)
Figure 13: 15z surface map | Figure 14: 18z surface map | Figure 15: 21z surface map |
Figure 16: 00z surface map | Figure 17: 03z surface map | Figure 18: 06z surface map |
Figure 19: 12z Omaha, NE sounding | Figure 20: 21z Omaha, NE sounding | Figure 21: 00z Omaha, NE sounding |
Figure 22: 12z Topeka, KS sounding | Figure 23: 21z Topeka, KS sounding | Figure 24: 00z Topeka, KS sounding |
Figure 25: 500-mb heights, vorticity, and vorticity advection at 21z. Note the weak impulse embedded in the northwest flow across southern SD into northern NE. | Figure 26: Surface pressure, wind, temperature and frontogenesis (red) at 21z. Storms initiated near the surface triple point over north-central NE. | Figure 27: Surface pressure, wind, temperature and dewpoint at 21z. Note the strong heating to the west of the dryline across western into central NE. This heating coupled with convergence along the boundaries and the influence of the mid-level impulse (Fig. 25) likely all contributed to the storm formation. |
Figure 28: muCAPE and effective bulk shear at 21z. Note the overlap of strong instability and vertical shear across much of eastern NE and southwest IA. | Figure 29: Supercell Composite Parameter (SCP) at 21z. The most favorable environment for supercells existed near the surface triple point at that time. | Figure 30: Effective storm-relative helicity at 21z. Low-level shear was maximized near the surface front where winds were locally backed. |
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