Alert archive / Wyoming / Tornado Warnings in 1994

Tornado Warning 13, NWS Cheyenne, WY

July 13, 1994Goshen County, Wyoming

NWS Cheyenne, WY issued this tornado warning at Jul 13, 1994, 6:47 PM MDT for Goshen County, Wyoming. It was in force for 28 min.

The area

The counties it named.

The facts

Issued
Jul 13, 1994, 6:47 PM MDT (00:47 UTC)
Expired
Jul 13, 1994, 7:15 PM MDT
In force
28 min
Issued by
NWS Cheyenne, WY
Area
Whole counties

County Goshen County, WY

The nearest sounding before it

Rapid City, SD (KRAP), launched 00:00Z, 0.8 hours before the alert went out and 251 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Rapid City, SD at 00:00Z on 1994-07-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 31 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Rapid City, SD at 00:00Z on 1994-07-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 7 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
31 J/kg
Mixed-layer CIN
-124 J/kg
Mixed-layer LCL
1559 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
7 m²/s²
0-3 km storm-relative helicity
92 m²/s²
Significant tornado parameter
-0.0
Supercell composite
-0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KCYS 140048
TORCYS
WYC015-140115-
 
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE CHEYENNE WY
647 PM MDT WED JUL 13 1994
 
THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL  715 PM MDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTHEAST WYOMING
 
   ...SOUTHERN GOSHEN COUNTY
 
THE TORNADO WARNING FOR SOUTHERN GOSHEN COUNTY HAS BEEN EXTENDED. THE
THUNDERSTORM THAT HAD PRODUCED THE TORNADO CONTINUES TO MOVE SOUTHEAST
AT 20 MPH.
 
AT 645 PM...60 MPH WINDS WERE REPORTED AT HAWK SPRINGS IN VERY HEAVY
RAIN.  THIS THUNDERSTORM HAS PRODUCED A TORNADO...AND WILL LIKELY
CONTINUE TO PRODUCE ONE THROUGH 715 PM.  IF YOU ARE BETWEEN HAWK SPRINGS
AND LA GRANGE...YOU SHOULD MOVE TO SHELTER NOW.  THIS STORM WILL BE OVER
LA GRANGE BY 710 PM.
 
IF YOU ARE IN THE PATH OF A TORNADO...THE SAFEST PLACE IS A
BASEMENT.  GET UNDER A WORKBENCH OR PIECE OF STURDY FURNITURE.
IF NO BASEMENT IS AVAILABLE...SEEK SHELTER IN AN INTERIOR ROOM
SUCH AS A CLOSET ON THE LOWEST FLOOR.  USE BLANKETS...PILLOWS...
OR CUSHIONS TO COVER YOUR BODY.  AVOID WINDOWS.
 
WCJIN-WYSE
SULLIVAN
 
&

The office that day

Everything else NWS Cheyenne, WY issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 13, 6:09 PM MDTSevere Thunderstorm WarningCYSGoshen51 min
Jul 13, 6:18 PM MDTTornado WarningCYSGoshen27 min
Jul 13, 6:22 PM MDTSevere Thunderstorm WarningCYSPlatte53 min
Jul 13, 6:28 PM MDTSevere Thunderstorm WarningCYSLaramie32 min
Jul 13, 6:30 PM MDTTornado WarningCYSPlatte30 min
Jul 13, 7:08 PM MDTSevere Thunderstorm WarningCYSGoshen52 min
Jul 13, 7:22 PM MDTTornado WarningCYSAlbany38 min
Jul 13, 7:49 PM MDTSevere Thunderstorm WarningCYSLaramie26 min
Jul 13, 8:12 PM MDTSevere Thunderstorm WarningCYSLaramie48 min
Jul 13, 9:43 PM MDTSevere Thunderstorm WarningCYSLaramie22 min

Nearby

Tornado Warnings in Wyoming, 1994Every tornado warning in 1994Tornadoes in 1994

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive.