Alert archive / Wyoming / Severe Thunderstorm Warnings in 1992

Severe Thunderstorm Warning 111, NWS Cheyenne, WY

July 26, 1992Laramie County, Wyoming

NWS Cheyenne, WY issued this severe thunderstorm warning at Jul 26, 1992, 1:53 PM MDT for Laramie County, Wyoming. It was in force for 52 min.

The area

The counties it named.

The facts

Issued
Jul 26, 1992, 1:53 PM MDT (19:53 UTC)
Expired
Jul 26, 1992, 2:45 PM MDT
In force
52 min
Issued by
NWS Cheyenne, WY
Area
Whole counties

County Laramie County, WY

The nearest sounding before it

Rapid City, SD (KRAP), launched 12:00Z, 7.9 hours before the alert went out and 341 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 1992-07-26Temperature 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°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 1992-07-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -20 square meters per square second.1939587897Sfc1 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
1496 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
-20 m²/s²
0-3 km storm-relative helicity
31 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, Jul 26, 11:45 AM MDT, 2 hours 8 minutes before
NEZ001-005-011-261900-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SCOTTSBLUFF NE
1145 AM MDT SUN JUL 26 1992

...THUNDERSTORM DEVELOPED OVER THE NORTHERN NEBRASKA PANHANDLE...

AT 1142 PM MDT...A STRONG THUNDERSTORM HAD DEVELOPED OVER DAWES COUNTY
IN THE NORTHERN PANHANDLE.  THE STORM WAS 8 MILES WEST OF CHADRON...OR
8 MILES EAST OF CRAWFORD.

THE STORM WAS MOVING EAST AT 15 MPH AND SHOULD BE IN THE CHADRON
VICINITY BY 1215 PM MDT.

PEOPLE IN THE CHADRON AREA SHOULD BE ON THE LOOKOUT FOR STRONG GUSTY
WIND...SMALL HAIL...DANGEROUS LIGHTNING AND HEAVY RAIN AS THE STORM
APPROACHES.
KYLE
Special weather statement, Jul 26, 12:41 PM MDT, 1 hour 12 minutes before
WYZ066-067-069-071-072-261930-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
1240 PM MDT SUN JUL 26 1992

THUNDERSTORMS DEVELOPED RAPIDLY ALONG AND NEAR THE LARAMIE MOUNTAIN
RANGE OF SOUTHEAST WYOMING LATE THIS MORNING.  AT 1235 PM MDT...THE
STRONGEST STORM WAS OVER THE NORTH PART OF CHEYENNE.  THIS STORM WAS
PRODUCING BRIEF HEAVY RAIN AND SMALL HAIL AS IT MOVED EAST AT 15 MILES
AN HOUR.

THUNDERSTORMS WILL CONTINUE TO DEVELOP ON A SCATTERED BASIS IN
SOUTHEAST WYOMING THIS AFTERNOON.  A FEW OF THE STORMS WILL PRODUCE
BRIEF HEAVY RAIN...DEADLY LIGHTNING AND SMALL HAIL.

PEOPLE IN SOUTHEAST WYOMING SHOULD KEEP AN EYE ON THE SKY THE REST OF
THIS AFTERNOON FOR THUNDERSTORMS. B SHOULD A STORM APPROACH YOUR AREA
...SEEK A SAFE PLACE...INDOORS IF POSSIBLE.

HATTEN
Special weather statement, Jul 26, 12:58 PM MDT, 55 minutes before
NEZ001-005-011-262000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SCOTTSBLUFF NE
1257 PM MDT SUN JUL 26 1992

...THUNDERSTORM OVER THE NORTHERN NEBRASKA PANHANDLE...

AT 1254 PM MDT...STRONG THUNDERSTORMS WERE OVER DAWES COUNTY IN THE
NORTHERN PANHANDLE.  THE STRONGER STORMS WERE 6 MILES SOUTH AND 19 MILES
SOUTH OF CHADRON...OR 18 MILES EAST OF CRAWFORD AND 13 MILES NORTH OF
HEMINGFORD.  ANOTHER STORM WAS 14 MILES EAST OF CHADRON...IN WESTERN
SHERIDAN COUNTY.

THE STORMS WERE MOVING EAST AT 20 MPH.

BE ON THE LOOKOUT FOR BRIEF HEAVY RAIN...STRONG GUSTY WIND...SMALL
HAIL AND DANGEROUS LIGHTNING WITH THESE STORMS OVER DAWES AND NORTHERN
SHERIDAN COUNTIES FOR THE NEXT HOUR OR SO.
KYLE

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 26, 2:02 PM MDTSevere Thunderstorm WarningCYSDawes28 min
Jul 26, 2:30 PM MDTSevere Thunderstorm WarningCYSSheridan30 min
Jul 26, 2:59 PM MDTSevere Thunderstorm WarningCYSSheridan31 min
Jul 26, 3:27 PM MDTSevere Thunderstorm WarningCYSSheridan33 min
Jul 26, 3:52 PM MDTSevere Thunderstorm WarningCYSCheyenne38 min
Jul 26, 2:58 PM MDTSevere Thunderstorm WarningCYSLaramie27 min

Nearby

Severe Thunderstorm Warnings in Wyoming, 1992Every severe thunderstorm warning 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; the sounding from the Mesonet's radiosonde archive.