National Weather Service Raw Text Product

791 
NOUS43 KFGF 120426
PNSFGF
MNZ001>009-013>017-022>024-027>032-040-121630-

Public Information Statement
National Weather Service Grand Forks ND
1126 PM CDT Sat Jul 11 2020

...NWS DAMAGE SURVEY FOR 07/11/20 TORNADO EVENT...

.OVERVIEW... A mid level cold core low pressure system moved 
from northwest to southeast across portions of northwest and 
west central MN during a time of maximum heating. This helped 
to produce a string of low-topped thunderstorms and multiple 
cold core funnels along its path, at least one of which was 
able to touchdown as a weak and short tracking tornado. 

.TORNADO... Cormorant Township Tornado

Rating:                 EF-1
Estimated peak wind:    95 mph
Path length /Statute/:  1.5 miles
Path width /Maximum/:   30 yards
Fatalities:             0
Injuries:               0

Start date:             Jul 11 2020 
Start time:             106 pm CDT
Start location:         3 E Rollag / Becker County / MN
Start Lat/Lon:          46.7390 / -96.1650

End date:               Jul 11 2020
End time:               112 pm CDT
End location:           5 WSW Cormorant / Becker County / MN
End Lat/Lon:            46.7190 / -96.1730

SURVEY SUMMARY: A brief survey was conducted through the assistance 
of the Clay County MN Sheriffs Office and local residents. The thin 
rope tornado appeared to have touched near the center of Section 30 
of Cormorant Township, and meander in a south to south-southwesterly 
direction. It hit an abandoned farmstead in the southwest edge of 
Section 31, and appeared to lift and dissipate shortly thereafter. It 
tore most of the roof off a barn and additional roofing panels off 
other farm buildings.  
 
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 event and publication in
NWS Storm Data. 

$$

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