Alert archive / Wyoming / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 7, NWS Cheyenne, WY

May 24, 1997Laramie County, Wyoming

NWS Cheyenne, WY issued this severe thunderstorm warning at May 24, 1997, 4:06 PM MDT for Laramie County, Wyoming. It was in force for 34 min. 1 report 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
May 24, 1997, 4:06 PM MDT (22:06 UTC)
Expired
May 24, 1997, 4:40 PM MDT
In force
34 min
Issued by
NWS Cheyenne, WY
Area
Whole counties

County Laramie County, WY

What was reported inside it

TimeReportWhereRemark
May 24, 4:25 PM MDTHail 0.75Albin, WYHail three quarters of an inch in diameter fell one mile south of Albin, badly damaging 10 to 12 sections of cropland.

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.

The nearest sounding before it

Denver, CO (KDNR), launched 12:00Z, 10.1 hours before the alert went out and 202 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, Denver, CO 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.LCL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Denver, CO at 12:00Z on 1997-05-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 16 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
1596 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
16 m²/s²
0-3 km storm-relative helicity
27 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.

855 
WUUS1 KCYS 242205 RRA
SVRCYS
WYC021-242240-

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

* SEVERE THUNDERSTORM WARNING FOR
  EASTERN LARAMIE COUNTY IN SOUTHEASTERN WYOMING

* UNTIL 440 PM MDT

* SOME AFFECTED LOCATIONS INCLUDE
  BURNS

* AT 405 PM RADAR INDICATED A SEVERE THUNDERSTORM NEAR BURNS MOVING
  NORTH AT 20 MPH.

 
 
LARGE HAIL IS LIKELY WITH THIS STORM.  SEEK SHELTER INSIDE A STURDY
BUILDING AWAY FROM ALL WINDOWS UNTIL THE STORM PASSES.

WCJIN-WYSE
JMH

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, 4:03 PM MDTSevere Thunderstorm WarningCYSGoshen32 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.