Scattered damaging winds from severe thunderstorms will be possible across parts of the Northeast and Mid-Atlantic States Sunday. Excessive heat will continue over the southern U.S. Sunday before another round of heat arrives Monday through the central and southern U.S. spreading into the East by Independence Day. California will see excessive heat starting Tuesday. Read More >
Public Information Statement National Weather Service Aberdeen SD 509 PM CDT Tue Sep 10 2019 /409 PM MDT Tue Sep 10 2019/ ...NWS DAMAGE SURVEY FOR 09/09/19 TORNADO EVENT... .TORNADO #1... Rating: EF-0 Estimated peak wind: 80 mph Path length /Statute/: 2.0 miles Path width /Maximum/: 40 yards Fatalities: 0 Injuries: 0 Start date: September 9 2019 Start time: 3:40 PM CDT Start location: 1 E Thomas/Hamlin County/SD Start Lat/Lon: 44.7597/-97.1929 End date: September 9 2019 End time: 3:45 PM CDT End location: 2 NE Thomas/Hamlin County/SD End_lat/lon: 44.7803/-97.1648 The tornado started in a bean field just south of SD Highway 22 around a mile east of Thomas, SD. Witnesses saw it cross Highway 22, then damage trees and outdoor lawn items as it passed close to a house. The tornado then moved northeast across Clear Lake and crossed County Highway H. The tornado crossed a corn field before damaging several metal beams on a quonset barn. Several outbuildings and a silo were damaged on the farm before the tornado moved and snapped several branches and uprooted a few trees along a shelterbelt. .TORNADO #2... Rating: EF-0 Estimated peak wind: 73 mph Path length /Statute/: 0.1 miles Path width /Maximum/: 10 yards Fatalities: 0 Injuries: 0 Start date: September 9 2019 Start time: 6:55 PM CDT Start location: 3 N Webster/Day County/SD Start Lat/Lon: 45.3805/-97.5119 End date: September 9 2019 End time: 6:56 PM CDT End location: 3 N Webster/Day County/SD End_lat/lon: 45.3812/-97.5101 A witness observed a tornado touch down over a lake and then track on to pasture land before quickly lifting. The tornado remained on the ground for about one minute. No damage occurred. .TORNADO #3... Rating: EF-1 Estimated peak wind: 90 mph Path length /Statute/: 1.4 miles Path width /Maximum/: 80 yards Fatalities: 0 Injuries: 0 Start date: September 9 2019 Start time: 8:03 PM CDT Start location: 4 N Bristol/Day County/SD Start Lat/Lon: 45.7353/-97.7353 End date: September 9 2019 End time: 8:11 PM CDT End location: 4 N Bristol/Day County/SD End_lat/lon: 45.4087/-97.7075 The tornado touched down in a field west of 424th Ave, crossed the road and tracked along the northern edge of a farmstead 4 miles north of Bristol, SD. Multiple broken tree branches were noted, with some tossed 50 to 80 yards from the original source. One fiberglass shed was destroyed and tossed about 70 yards. Another outbuilding was lifted off the foundation and set down about 30 yards away. The tornado continued east of the farmstead, crossing two small lakes. The track was clearly shown by cattails flattened in a convergent pattern. The tornado then struck another tree with limbs broken and tossed. The final evidence of the tornado was a downed deer stand. .TORNADO #4... Rating: EF-0 Estimated peak wind: 73 mph Path length /Statute/: 0.1 miles Path width /Maximum/: 10 yards Fatalities: 0 Injuries: 0 Start date: September 9 2019 Start time: 8:14 PM CDT Start location: 7 NNE Bristol/Day County/SD Start Lat/Lon: 45.4271/-97.6827 End date: September 9 2019 End time: 8:15 PM CDT End location: 7 NNE Bristol/Day County/SD End_lat/lon: 45.4281/-97.6815 A short tornado track was observed in an area where cattails were flattened in a convergent pattern. Witnesses also observed the brief touchdown. EF Scale: The Enhanced Fujita Scale Classifies Tornadoes into the following categories. EF0...Weak......65 to 85 mph EF1...Weak......86 to 110 mph EF2...Strong....111 to 135 mph EF3...Strong....136 to 165 mph EF4...Violent...166 To 200 mph EF5...Violent...>200 mph NOTE: The information in this statement is PRELIMINARY and subject to change pending final review of the events and publication in NWS Storm Data. $$
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