Alert archive / Wyoming / Tornado Warnings in 1992

Tornado Warning 9, NWS Cheyenne, WY

June 29, 1992Goshen County, Platte County, Wyoming

NWS Cheyenne, WY issued this tornado warning at Jun 29, 1992, 8:31 PM MDT for Goshen County, Platte County, Wyoming. It was in force for 29 min. 2 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Jun 29, 1992, 8:31 PM MDT (02:31 UTC)
Expired
Jun 29, 1992, 9:00 PM MDT
In force
29 min
Issued by
NWS Cheyenne, WY
Area
Whole counties

Counties Goshen County, WY, Platte County, WY

What was reported inside it

TimeReportWhereRemark
Jun 29, 8:40 PM MDTHail 0.75Platte, WY
Jun 29, 8:45 PM MDTTornado F0Platte, WY

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Rapid City, SD (KRAP), launched 00:00Z, 2.5 hours before the alert went out and 261 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 1992-06-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Rapid City, SD at 00:00Z on 1992-06-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 111 square meters per square second.193958Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
687 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
111 m²/s²
0-3 km storm-relative helicity
249 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 300234
TORCYS
WYC015-031-300300-
 
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE CHEYENNE WY
831 PM MDT MON JUN 29 1992
 
THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL 900 PM MDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN SOUTHEAST WYOMING
 
   ...SOUTHERN GOSHEN COUNTY...SOUTHEASTERN PLATTE COUNTY
 
THIS INCLUDES THE CITIES OF SLATER...VETERAN...YODER AND HAWK
SPRINGS.
 
AT 825 PM...SEVERAL TORNADOES CONTINUE TO THE SOUTHEAST OF THE CITY
OF WHEATLAND. THE TORNADOES HAVE TOUCHED DOWN BRIEFLY. IN ADDITION...
THERE HAVE BEEN REPORTS OF LARGE HAIL WITH THIS STORM. BASEBALL SIZED
HAIL WAS LOCATED 4 MILES EAST OF WHEATLAND AT 815 PM. THIS IS A
DANGEROUS STORM. PEOPLE IN SOUTHERN GOSHEN COUNTY SHOULD TAKE
SHELTER RIGHT AWAY.
 
THIS WARNING REPLACES THE TORNADO WARNING THAT WAS IN EFFECT
UNTIL 830 PM FOR CENTRAL PLATTE COUNTY.
 
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 WIN/DOWS.
WEILAND

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 29, 6:03 PM MDTSevere Thunderstorm WarningCYSSheridan27 min
Jun 29, 6:59 PM MDTSevere Thunderstorm WarningCYSPlatte46 min
Jun 29, 7:37 PM MDTSevere Thunderstorm WarningCYSLaramie53 min
Jun 29, 7:55 PM MDTTornado WarningCYSPlatte35 min
Jun 30, 12:51 PM MDTSevere Thunderstorm WarningCYSBig Horn32 min
Jun 30, 2:56 PM MDTSevere Thunderstorm WarningCYSJohnson26 min

Nearby

Tornado Warnings in Wyoming, 1992Every tornado warning in 1992Tornadoes in 1992

Sources

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