Alert archive / Wyoming / Tornado Warnings in 1996

Tornado Warning 13, NWS Cheyenne, WY

July 13, 1996Laramie County, Wyoming

NWS Cheyenne, WY issued this tornado warning at Jul 13, 1996, 7:29 PM MDT for Laramie County, Wyoming. It was in force for 16 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
Jul 13, 1996, 7:29 PM MDT (01:29 UTC)
Expired
Jul 13, 1996, 7:45 PM MDT
In force
16 min
Issued by
NWS Cheyenne, WY
Area
Whole counties

County Laramie County, WY

The nearest sounding before it

Denver, CO (KDNR), launched 00:00Z, 1.5 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 00:00Z on 1996-07-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1605 joules per kilogram.LCLLFCEL10008507005003002001001 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 00:00Z on 1996-07-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 79 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
1605 J/kg
Mixed-layer CIN
-40 J/kg
Mixed-layer LCL
1342 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
79 m²/s²
0-3 km storm-relative helicity
298 m²/s²
Significant tornado parameter
0.9
Supercell composite
7.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KCYS 140131
TORCYS
WYC021-140145-
 
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE CHEYENNE WY
729 PM MDT SAT JUL 13 1996
 
THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL  745 PM MDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTHEAST WYOMING
 
   ...EASTERN LARAMIE COUNTY INCLUDING ALBIN...
 
A TORNADO WAS SPOTTED BY THE AIR FORCE MISSILE SITE NEAR ALBIN 35 MILES
NORTHEAST OF CHEYENNE.
 
 
IF YOU ARE IN A CAR OR MOBILE HOME...ABANDON IT!  GO IN A NEARBY
STURDY BUILDING! AS A LAST RESORT LIE FLAT IN A DITCH AND COVER YOUR
HEAD.
 
 
WCJIN-WYSE.
 
BAKER
 
&

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 13, 6:00 PM MDTSevere Thunderstorm WarningCYSGoshen30 min
Jul 13, 6:33 PM MDTSevere Thunderstorm WarningCYSGoshen27 min
Jul 13, 6:38 PM MDTSevere Thunderstorm WarningCYSConverse37 min
Jul 13, 6:59 PM MDTSevere Thunderstorm WarningCYSGoshen16 min
Jul 13, 7:01 PM MDTSevere Thunderstorm WarningCYSPlatte29 min
Jul 13, 7:15 PM MDTSevere Thunderstorm WarningCYSLaramie30 min
Jul 13, 7:27 PM MDTSevere Thunderstorm WarningCYSPlatte33 min
Jul 13, 7:38 PM MDTTornado WarningCYSPlatte37 min
Jul 13, 8:00 PM MDTTornado WarningCYSLaramie30 min
Jul 13, 8:25 PM MDTTornado WarningCYSLaramie35 min
Jul 13, 9:01 PM MDTTornado WarningCYSLaramie29 min

Nearby

Tornado Warnings in Wyoming, 1996Every tornado warning in 1996Tornadoes 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.