Alert archive / Wyoming / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 45, NWS Cheyenne, WY

June 16, 1996Laramie County, Wyoming

NWS Cheyenne, WY issued this severe thunderstorm warning at Jun 16, 1996, 5:43 PM MDT for Laramie County, Wyoming. It was in force for 47 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
Jun 16, 1996, 5:43 PM MDT (23:43 UTC)
Expired
Jun 16, 1996, 6:30 PM MDT
In force
47 min
Issued by
NWS Cheyenne, WY
Area
Whole counties

County Laramie County, WY

The nearest sounding before it

Denver, CO (KDNR), launched 12:00Z, 11.7 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 1996-06-16Temperature 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 1996-06-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -30 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
1401 m above ground
0-6 km bulk shear
8 kt
0-1 km storm-relative helicity
-30 m²/s²
0-3 km storm-relative helicity
-21 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, Jun 16, 3:51 PM MDT, 1 hour 52 minutes before
WYZ062-063-064-065-066-067-069-162245-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
349 PM MDT SUN JUN 16 1996

...THUNDERSTORMS DEVELOPING OVER SOUTHEAST WYOMING...

AT 345PM THE CHEYENNE RADAR SHOWED THUNDERSTORMS DEVELOPING OVER
SOUTHEAST WYOMING...PRIMARILY NORTH AND EAST CARBON...ALBANY
AND EXTREME SOUTHWEST LARAMIE COUNTIES.

THE STRONGEST STORM WAS 10 MILES SOUTHWEST OF CHEYENNE AND WILL
AFFECT THE TERRY BISON RANCH rAREA BY 430PM.

THE STORMS WERE MOVING TO THE SOUTHEAST AT 10 TO 15 MILES AN HOUR.

BRIEF HEAVY RAIN...SMALL HAIL AND GUSTY WINDS SHOULD BE EXPECTED
FROM THE STRONGEST STORMS AS WELL AS DEADLY LIGHTNING.

WCJIN-WYSE

COX
Special weather statement, Jun 16, 4:58 PM MDT, 45 minutes before
WYZ059-060-067>070-NEZ001-019-020-054-170000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
457 PM MDT SUN JUN 16 1996

...SOME STRONG THUNDERSTORMS WERE OVER SOUTHEAST WYOMING AT 455 PM...

THE STRONGEST STORMS WERE LOCATED OVER THE SOUTHERN AND WESTERN PARTS
OF LARAMIE COUNTY.  ONE STRONG STORM WAS LOCATED ABOUT 15 MILES EAST
SOUTHEAST OF CHEYENNE...WITH MORE STORMS 5 TO 20 MILES WEST AND
NORTHWEST OF THE CITY.  ANOTHER LONE STORM HAD POPPED UP IN THE VICINITY
OF LUSK IN SOUTHERN NIOBRARA COUNTY.

ALL STORMS WERE MOVING GENERALLY EAST AT 15 TO 20 MPH.  SMALL HAIL AND
BRIEF HEAVY RAIN WILL BE THE MAIN THREATS...ALONG WITH DANGEROUS
LIGHTNING.  BE SURE TO STAY INDOORS WHEN STORMS ARE IN YOUR AREA.

WCJIN-WYSE

JAD
Special weather statement, Jun 16, 5:36 PM MDT, 7 minutes before
WYZ060-067>070-NEZ001-019-020-054-170030-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
535 PM MDT SUN JUN 16 1996

...STRONG THUNDERSTORMS CONTINUE OVER SOUTHEAST WYOMING AT 530 PM...

STRONGEST STORMS WERE LOCATED OVER THE CENTRAL PART OF LARAMIE COUNTY
...ABOUT 15 MILES NORTH AND NORTHEAST OF CHEYENNE.  ANOTHER STORM WAS
LOCATED NEAR LUSK IN NIOBRARA COUNTY...WITH MORE STORMS MOVING INTO
THE LARAMIE RANGE 20 MILES WEST OF WHEATLAND.  ALL STORMS WERE MOVING
GENERALLY EAST AT 15 TO 20 MPH.

HEAVY RAIN AND PEA TO MARBLE SIZE HAIL HAVE BEEN REPORTED WITH THESE
STORMS.  PEOPLE IN CENTRAL AND EASTERN LARAMIE COUNTY...AS WELL AS
SOUTHEAST NIOBRARA COUNTY SHOULD REMAIN INDOORS AS THESE STORMS PASS
ON BY.

WCJIN-WYSE
JAD

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 16, 5:55 PM MDTSevere Thunderstorm WarningCYSPlatte50 min

Nearby

Severe Thunderstorm Warnings in Wyoming, 1996Every severe thunderstorm warning in 1996

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.