Alert archive / Wyoming / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 2, NWS Riverton, WY

July 29, 1995Park County, Wyoming

NWS Riverton, WY issued this severe thunderstorm warning at Jul 29, 1995, 3:05 PM MDT for Park County, Wyoming. It was in force for 40 min.

The area

The counties it named.

The facts

Issued
Jul 29, 1995, 3:05 PM MDT (21:05 UTC)
Expired
Jul 29, 1995, 3:45 PM MDT
In force
40 min
Issued by
NWS Riverton, WY
Area
Whole counties

County Park County, WY

The nearest sounding before it

Riverton, WY (KRIW), launched 12:00Z, 9.1 hours before the alert went out and 187 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, Riverton, WY at 12:00Z on 1995-07-29Temperature 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, Riverton, WY at 12:00Z on 1995-07-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 74 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
3573 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
74 m²/s²
0-3 km storm-relative helicity
149 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.

000 
TTAA00 KLND 292108 RRA
SVRLND
WYC029-292145-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LANDER WY
305 PM MDT SAT JUL 29 1995
 
THE NATIONAL WEATHER SERVICE IN LANDER WY HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  345 PM MDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN NORTHWEST WYOMING
 
   ...SOUTHERN YELLOWSTONE NAT PARK COUNTY
 
AT 200 PM...RADAR INDICATED A SEVERE THUNDERSTORM ABOUT 30 MILES NORTH
OF JACKSON MOVING TO THE NORTHEAST AT 40 MPH. THE THUNDERSTORM WILL MOVE
INTO THE SOUTH PART OF YELLOWSTONE PARK BY 215 PM.
 
CAMPERS OR OTHERS OUT-OF-DOORS SHOULD SEEK SHELTER IMMEDIATELY.  STAY
ALERT FOR DEADLY LIGHTNING...DAMAGING WIND...LARGED HAIL AND HEAVY
RAIN.  AVOID OPEN AREAS...EXPOSED RIDGE TOPS OR DRY WASHES.  WATCH
FOR RAPIDLY RISING WATER IN STREAMS AND RIVERS AS HEAVY RAIN FROM A
SEVERE THUNDERSTORM CAN CAUSE FLASH FLOODING.
 
WCJIN-WYNW
AEM

Nearby

Severe Thunderstorm Warnings in Wyoming, 1995Every severe thunderstorm warning in 1995

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.