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NOUS45 KTFX 220021
PNSTFX
MTZ301>330-221230-

Public Information Statement
National Weather Service Great Falls MT
621 PM MDT Mon Apr 21 2025

...NWS Damage Survey for April 20 and 21 Landspout Events...

.Overview...Cool cyclonic flow aloft and strong but variable
surface heating resulted in widely scattered rain showers, two of
which resulted in brief, weak landspouts: one on Sunday the 20th
and one on Monday the 21st. These two landspouts occurred near a
highway and were witnessed by multiple people who took pictures
and videos of the landspouts and submitted them to NWS and local
media.

Surveys were conducted of both landspout locations. However, lack
of damage indicators in the likely locations, which were in farm
fields, resulted in no confirmed damage that could be rated or
attributed to the landspouts. As such, all locations are
estimated. Higher confidence can be placed on times thanks to
witness interviews.

.Landspout #1...

Rating:                 EF-U
Estimated Peak Wind:    UNKNOWN mph
Path Length /statute/:  UNKNOWN miles
Path Width /maximum/:   UNKNOWN yards
Fatalities:             0
Injuries:               0

Start Date:             04/20/2025
Start Time:             0300 PM MDT
Start Location:         Near Rocky Crossing / Chouteau County / MT
Start Lat/Lon:          48.2505 / -110.0626

End Date:               04/20/2025
End Time:               0308 PM MDT
End Location:           Near Rocky Crossing / Chouteau County / MT
End Lat/Lon:            48.2511 / -110.0386

.Landspout #2...

Rating:                 EF-U
Estimated Peak Wind:    UNKNOWN mph
Path Length /statute/:  UNKNOWN miles
Path Width /maximum/:   UNKNOWN yards
Fatalities:             0
Injuries:               0

Start Date:             04/21/2025
Start Time:             0343 PM MDT
Start Location:         Near Floweree / Chouteau County / MT
Start Lat/Lon:          47.6733 / -111.1456

End Date:               04/21/2025
End Time:               0345 PM MDT
End Location:           Near Floweree / Chouteau County / MT
End Lat/Lon:            47.6909 / -111.0888

&&

EF Scale: The Enhanced Fujita Scale classifies tornadoes into the
following categories:

EF0.....65 to 85 mph
EF1.....86 to 110 mph
EF2.....111 to 135 mph
EF3.....136 to 165 mph
EF4.....166 to 200 mph
EF5.....>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.

$$