Alert archive / Wyoming / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 6, NWS Cheyenne, WY

May 24, 1997Goshen County, Wyoming

NWS Cheyenne, WY issued this severe thunderstorm warning at May 24, 1997, 4:03 PM MDT for Goshen County, Wyoming. It was in force for 32 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
May 24, 1997, 4:03 PM MDT (22:03 UTC)
Expired
May 24, 1997, 4:35 PM MDT
In force
32 min
Issued by
NWS Cheyenne, WY
Area
Whole counties

County Goshen County, WY

The nearest sounding before it

Rapid City, SD (KUNR), launched 12:00Z, 10.1 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 12:00Z on 1997-05-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCLEL10008507005003002001001 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 12:00Z on 1997-05-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 62 square meters per square second.1939Sfc1 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
534 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
62 m²/s²
0-3 km storm-relative helicity
64 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.

854 
WUUS1 KCYS 242204 RRA
SVRCYS
WYC015-242235-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CHEYENNE WY
403 PM MDT SAT MAY 24 1997

* SEVERE THUNDERSTORM WARNING FOR
  SOUTH CENTRAL GOSHEN COUNTY IN SOUTHEASTERN WYOMING

* UNTIL 435 PM MDT

* THIS STORM IS EXPECTED TO REMAIN IN OPEN COUNTRY.

* AT 400 PM...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 10 MILES
  WEST OF HAWK SPRINGS.  THIS STORM HAS A HISTORY OF GOLFBALL
  SIZED HAIL.  MOVEMENT WAS NORTH AROUND 5 MPH.  
 
TAKE SHELTER INSIDE A STRONG BUILDING.  DO NOT STAND BY WINDOWS.

&
WCJIN-WYSE
DMM

The office that day

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

IssuedProductOfficeCountiesLasted
May 24, 1:31 PM MDTSevere Thunderstorm WarningCYSPlatte34 min
May 24, 2:36 PM MDTSevere Thunderstorm WarningCYSConverse, Niobrara, Platte34 min
May 24, 3:27 PM MDTSevere Thunderstorm WarningCYSGoshen33 min
May 24, 3:31 PM MDTSevere Thunderstorm WarningCYSLaramie34 min
May 24, 4:06 PM MDTSevere Thunderstorm WarningCYSLaramie34 min

Nearby

Severe Thunderstorm Warnings in Wyoming, 1997Every severe thunderstorm warning in 1997

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.