The Cheyenne Office of the National Weather Service has released its report on a tornado that was reported in Goshen County on Tuesday.

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. 


 

 

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