Public Information Statement
Issued by NWS Twin Cities, MN

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Public Information Statement...UPDATED
National Weather Service Twin Cities/Chanhassen MN
251 PM CDT Fri Aug 18 2017

...ANOTHER TORNADO FOUND NEAR MYSTIC LAKE/PRIOR LAKE, MN...

.OVERVIEW...A band of heavy rain with embedded tornadoes lifted
north through Minnesota during the afternoon and evening of
August 16 2017. So far 8 have been confirmed with more still
possible as videos are reviewed.

The tornadoes are listed in chronological order.

.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.

.PRIOR LAKE TORNADO...

Rating:                 EF-0
Estimated peak wind:    70 mph
Path length /Statute/:  1.2 miles
Path width /Maximum/:   75 yards
Fatalities:             0
Injuries:               0

Start date:             08_16_2017
Start time:             746 PM CDT
Start location:         2 WNW Prior Lake, MN
Start lat/lon:          44.7246 / -93.4707

End date:               08_16_2017
End time:               749 PM CDT
End location:           4 NW Prior Lake, MN
End lat/lon:            44.7375 / -93.4847

SURVEY SUMMARY: A tornado spun up near the intersection of 154th
St. NW and Mystic Lake Drive. It tracked 1.2 miles northwest,
just missing Mystic Lake Casino. Fencing and tents were blown
over, trees were uprooted, and a fish house was spun around.

.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.

$$

Borghoff



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