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NOUS45 KCYS 220905
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NEZ002-003-019>021-054-055-095-096-WYZ101>119-222115-

Public Information Statement
National Weather Service Cheyenne, WY
305 AM MDT Sat Jun 22 2024


...NWS DAMAGE SURVEY FOR 6/20/2024 TORNADO EVENT.

A supercell thunderstorm developed near Chugwater, Wyoming on the
afternoon of 6/20/2024. This thunderstorm produced two tornadoes as it
traveled eastward. One brief tornado occurred in rural Goshen County
Wyoming and a second tornado occurred southeast of Morrill, Nebraska.

.Morrill Tornado...

Rating:                 EF-1
Estimated peak wind:    100 mph
Path length /Statute/:  1.4 miles
Path width /Maximum/:   50 yards
Fatalities:             0
Injuries:               0

Start date:             6/20/2024
Start time:             3:29 PM MDT
Start location:         2.5 miles southeast of Morrill, NE
Start Lat/Lon:          41.956, -103.882

End date:               6/20/2024
End time:               3:34 PM MDT
End location:           4 miles southeast of Morrill, NE
End_lat/lon:            41.960, -103.855

NWS damage survey found evidence of EF-1 tornado damage at multiple
properties along County Road D as well as along Highway 26. One residence
had partial roof structure failure as well as roofing material completely
removed. Another garage facility experienced total structural collapse and
foundation shift. Numerous large tree limbs 1-2 feet in diameter were snapped
and scattered. Several smaller metal outbuildings were also destroyed and scattered.

Of important note, this tornado occurred along the northern fringe of a much
larger area of powerful straight-line outflow winds observed in excess of 90
to 100 mph. Damage indicators from the straight-line winds throughout Scotts Bluff
county were all pointed eastward. This was in dramatic contrast to the tornado
path which featured a chaotic scattering of damage and debris, some of which
was lofted north and even back west of the circulation path.


.Goshen County Tornado...

Rating:                 EF-U
Estimated peak wind:    Unknown
Path length /Statute/:  <0.5 miles
Path width /Maximum/:   <20 yards
Fatalities:             0
Injuries:               0

Start date:             6/20/2024
Start time:             2:40 PM MDT
Start location:         7.5 miles northwest of Hawk Springs, WY
Start Lat/Lon:          41.821, -104.398

End date:               6/20/2024
End time:               2:45 PM MDT
End location:           6 miles northwest of Hawk Springs, WY
End_lat/lon:            41.823, -104.365

A brief tornado was observed in rural Goshen County by numerous storm spotters
and emergency management personnel. Due to the rural nature of this tornado, only
limited damage to fencing was found, as well as scattered plant debris. Review of
video and photo sequences along with radar time-matching indicate that this tornado
likely began as a landspout, but quickly gained mesocyclonic characteristics as it
interacted with the updraft base, condensed a funnel, and slowed/occluded into the
storm. Regardless, without any damage of note this tornado will be recorded as EF-U.


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.


Special thanks to Emergency Management from both Scotts Bluff County and Goshen County
for assistance with damage surveys as well as providing additional photos and videos
of this event.



Charnick

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