7 tornado touchdowns confirmed in Minnesota last night
The Twin Cities NWS has confirmed 7 tornadoes touched down in Minnesota Wednesday night.
All of the tornadoes were EF-0 to EF1 strength. Here's a closer look at the rotational tracks derived from Twin Cities NWS Doppler radar from Wednesday night.
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National Weather Service Twin Cities/Chanhassen MN
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519 PM CDT Thu Aug 17 2017
...NWS DAMAGE SURVEY FOR 08/16/2017 TORNADO EVENT...
.OVERVIEW...A band of heavy rain with embedded tornadoes lifted
north through Minnesota during the afternoon and evening of
August 16 2017.
.NICOLLET TORNADO 1...
Rating: EF-0
Estimated peak wind: 75-80 mph
Path length /Statute/: 1.5 miles
Path width /Maximum/: 75 yards
Fatalities: 0
Injuries: 0
Start date: 08_16_2017
Start time: 446 PM CDT
Start location: 4 S Nicollet, MN
Start Lat/Lon: 44.2368 / -94.1865
End date: 08_16_2017
End time: 452 PM CDT
End location: 2 S Nicollet, MN
End_lat/lon: 44.2561 / -94.1945
SURVEY_SUMMARY: Tornado developed south of Nicollet and
lifted north northwest. It caused mainly tree damage, but
did hit a farmstead and damaged a garage and grove of
trees.
.NICOLLET TORNADO 2...
Rating: EF-0
Estimated peak wind: 55-60 mph
Path length /Statute/: 0.6 miles
Path width /Maximum/: 25 yards
Fatalities: 0
Injuries: 0
Start date: 08_16_2017
Start time: 504 PM CDT
Start location: 5 S Nicollet, MN
Start Lat/Lon: 44.2296 / -94.1783
End date: 08_16_2017
End time: 509 PM CDT
End location: 4 S Nicollet, MN
End_lat/lon: 44.2380 / -94.1783
SURVEY_SUMMARY: A few minutes later another tornado
developed south of Nicollet and lifted north. It was
observed by a local citizen, and caused mainly crops
and tree damage.
.NEW SWEDEN...
Rating: EF-1
Estimated peak wind: 100-105 mph
Path length /Statute/: 3.1 miles
Path width /Maximum/: 75 yards
Fatalities: 0
Injuries: 0
Start date: 08_16_2017
Start time: 535 PM CDT
Start location: 8 S Gaylord, MN
Start Lat/Lon: 44.4380 / -94.1962
End date: 08_16_2017
End time: 547 PM CDT
End location: 6 SSW Gaylord, MN
End_lat/lon: 44.4704 / -94.2461
SURVEY_SUMMARY: The strongest tornado of the day
developed in northern Nicollet county and lifted into
Sibley county. This was a multi-vortex tornado. Video
shows one vortex struck a farmstead directly
causing significant damage to trees and out buildings.
.WINTHROP #1 TORNADO...
Rating: EF-0
Estimated peak wind: 80 mph
Path length /Statute/: 0.25 miles
Path width /Maximum/: 75 yards
Fatalities: 0
Injuries: 0
Start date: 08_16_2017
Start time: 626 PM CDT
Start location: 4 ENE Winthrop, MN
Start Lat/Lon: 44.5719 / -94.3023
End date: 08_16_2017
End time: 626 PM CDT
End location: 4 ENE Winthrop, MN
End_lat/lon: 44.5719 / -94.3023
SURVEY_SUMMARY: Tornado developed 4 miles ENE of Winthrop and
traveled about 1/4 mile to the north northwest. It flattened
some corn, uprooted a tree, and caused other tree damage.
.WINTHROP #2 TORNADO...
Rating: EF-0
Estimated peak wind: 80 mph
Path length /Statute/: 0.16 miles
Path width /Maximum/: 25 yards
Fatalities: 0
Injuries: 0
Start date: 08_16_2017
Start time: 633 PM CDT
Start location: 3 NNE Winthrop, MN
Start Lat/Lon: 44.5795 / -94.3457
End date: 08_16_2017
End time: 633 PM CDT
End location: 3 NNE Winthrop, MN
End_lat/lon: 44.5795 / -94.3457
SURVEY_SUMMARY: A tornado developed 3 NNE of Winthrop, flattened
corn, destroyed a structurally compromised barn and produced some
tree damage.
.NEW PRAGUE TORNADO...
Rating: EF-0
Estimated peak wind: 55-60 mph
Path length /Statute/: 0.5 miles
Path width /Maximum/: 10 yards
Fatalities: 0
Injuries: 0
Start date: 08_16_2017
Start time: 705 PM CDT
Start location: 2 S New Prague, MN
Start Lat/Lon: 44.5359 / -93.5852
End date: 08_16_2017
End time: 708 PM CDT
End location: 2 SW New Prague, MN
End_lat/lon: 44.5435 / -93.5902
SURVEY_SUMMARY: A weak circulation develop south of New
Prague and moved across the far southwest part of town.
There was minor tree damage which matched up with radar.
.LESTER PRAIRIE TORNADO...
Rating: EF-0
Estimated peak wind: 75 mph
Path length /Statute/: Brief
Path width /Maximum/: 30 yards
Fatalities: 0
Injuries: 0
Start date: 08_16_2017
Start time: 808 PM CDT
Start location: Lester Prairie, MN
Start Lat/Lon: 44.8804 / -94.0469
End date: 08_16_2017
End time: 808 PM CDT
End location: Lester Prairie, MN
End_lat/lon: 44.8804 / -94.0469
SURVEY_SUMMARY: A brief EF-0 tornado on the south side of Lester
Prairie. It uprooted some trees and broke many tree limbs.
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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JRB,WRB,AMK