September 10th, 2019 Goshen County, Wyoming Tornado

Public Information Statement
National Weather Service Cheyenne, WY
558 PM MDT Wed Sep 11 2019

...PUBLIC INFORMATION STATEMENT...

...NWS DAMAGE SURVEY FOR 09/10/2019 TORNADO EVENT NEARLY 10 MILES
NORTH OF FT. LARAMIE WYOMING...

A supercell thunderstorm developed during the late afternoon on
September 10th in northern Platte county. The storm rapidly
intensified as it moved east, prompting a Tornado Warning at 308
pm. The Emergency Manager at Platte county reported seeing the
tornado 2 miles south of Hartville at 309 pm and crossed the
Platte/Goshen county line around 315pm. Around 319 pm, a storm
chaser reported seeing a wedge shaped tornado 8 miles east-
northeast of Guernsey. Storm chaser videos also reported a
multi-vortex tornado. However, the tornado path was discontinuous
as it moved east through Goshen county during the next 2 hours and
had periods where it cycled before dissipating.

Our survey team along with officials from Goshen county
investigated the tornado damage this afternoon north of Ft.
Laramie. Here are the preliminary results of the survey.


.5 to 10 miles of Ft. Laramie Wyoming...
Rating: EF2
Estimated peak wind: 130 mph
Path Length: Undetermined
Path Width: Undetermined
Fatalities: 0
Injuries: 0

Start date:9/10/2019
Start Time:3:26pm MDT
Start Location:8-9 miles north of Ft. Laramie
Start Lat/Lon: 42.3339, -104.5405

End date:9/10/2019
End Time: Undetermined
End Location:Still Undetermined
End Lat/Lon: Undetermined


EF Scale: The Enhanced Fujita Scale Classifies
Tornadoes into the following categories.

EF-0...Weak......65 to 85 mph
EF-1...Weak......86 to 110 mph
EF-2...Strong....111 to 135 mph
EF-3...Strong....136 to 165 mph
EF-4...Violent...166 To 200 mph
EF-5...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.

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE CHEYENNE WY
913 PM MDT TUE SEP 10 2019

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0210 PM     HAIL             GLENDO                  42.50N 105.03W
09/10/2019  E1.50 INCH       PLATTE             WY   TRAINED SPOTTER

            REPORTS IN GLENDO OF 1 TO 1 1/2 INCH DIAMETER HAIL.

0215 PM     HAIL             GLENDO                  42.50N 105.03W
09/10/2019  E2.75 INCH       PLATTE             WY   EMERGENCY MNGR

            HAIL UP TO BASEBALL SIZE IN GLENDO.

0305 PM     HAIL             2 S HARTVILLE           42.30N 104.72W
09/10/2019  E1.75 INCH       PLATTE             WY   PUBLIC

0309 PM     TORNADO          2 SE HARTVILLE          42.31N 104.70W
09/10/2019                   PLATTE             WY   EMERGENCY MNGR

0314 PM     HAIL             2 NE GUERNSEY           42.29N 104.72W
09/10/2019  M1.75 INCH       PLATTE             WY   PUBLIC

            GOLF BALL HAIL MEASURED OVER HAIL CORE AREA. THIS IS A
            CORRECTED LOCATION

0319 PM     TORNADO          8 ENE GUERNSEY          42.33N 104.61W
09/10/2019                   GOSHEN             WY   STORM CHASER

            WEDGE-SHAPED TORNADO.

0340 PM     HAIL             15 SW JAY EM            42.32N 104.57W
09/10/2019  E4.25 INCH       GOSHEN             WY   STORM CHASER

0355 PM     HAIL             15 N LINGLE             42.36N 104.35W
09/10/2019  M4.25 INCH       GOSHEN             WY   STORM CHASER

            MULTIPLE HAIL STONES BETWEEN 4 AND 4 3/8 INCHES MEASURED

0414 PM     TORNADO          14 N LINGLE             42.34N 104.35W
09/10/2019                   GOSHEN             WY   STORM CHASER

            TORNADO WEST OF HIGHWAY 85.

0419 PM     TORNADO          15 NNW LINGLE           42.34N 104.46W
09/10/2019                   GOSHEN             WY   STORM CHASER

            WEDGE TORNADO

0428 PM     HAIL             12 N LINGLE             42.31N 104.35W
09/10/2019  E2.50 INCH       GOSHEN             WY   EMERGENCY MNGR

            HAIL UP TO TENNIS BALL SIZE ON US HIGHWAY 85.

0435 PM     TORNADO          13 NNE LINGLE           42.31N 104.25W
09/10/2019                   GOSHEN             WY   STORM CHASER

            TORNADO NOW EAST OF HIGHWAY 85.

0446 PM     TORNADO          13 N TORRINGTON         42.26N 104.18W
09/10/2019                   GOSHEN             WY   TRAINED SPOTTER

0458 PM     TORNADO          5 E CHUGWATER           41.76N 104.72W
09/10/2019                   PLATTE             WY   PUBLIC

            ROPE TORNADO OBSERVED

0500 PM     TORNADO          2 E CHUGWATER           41.76N 104.78W
09/10/2019                   PLATTE             WY   EMERGENCY MNGR

0505 PM     TORNADO          15 W HAWK SPRINGS       41.79N 104.56W
09/10/2019                   GOSHEN             WY   EMERGENCY MNGR

            REPORT FROM SPOTTER RELAYED FROM YODEREM VIA WYOLINK.

0548 PM     HAIL             HAWK SPRINGS            41.79N 104.27W
09/10/2019  M1.00 INCH       GOSHEN             WY   EMERGENCY MNGR

            QUARTER SIZED HAIL REPORTED BY EMERGENCY MANAGEMENT WHILE
            MOBILE

0634 PM     HAIL             BEREA                   42.20N 102.99W
09/10/2019  E0.88 INCH       BOX BUTTE          NE   TRAINED SPOTTER

            NICKEL SIZED HAIL AND 0.80 INCHES OF RAIN REPORTED BY
            SPOTTER

0717 PM     HAIL             4 WNW BEREA             42.22N 103.07W
09/10/2019  M1.00 INCH       BOX BUTTE          NE   PUBLIC

            QUARTER SIZED HAIL OBSERVED BY PUBLIC. REPORTED VIA
            SOCIAL MEDIA