Alert archive / Utah / Severe Thunderstorm Warnings in 1992

Severe Thunderstorm Warning 29, NWS Salt Lake City, UT

August 25, 19924 counties in Utah

NWS Salt Lake City, UT issued this severe thunderstorm warning at Aug 25, 1992, 12:14 PM MDT for 4 counties in Utah. It was in force for 2 hr.

The area

The counties it named.

The facts

Issued
Aug 25, 1992, 12:14 PM MDT (18:14 UTC)
Expired
Aug 25, 1992, 2:15 PM MDT
In force
2 hr
Issued by
NWS Salt Lake City, UT
Area
Whole counties

Counties Garfield County, UT, Iron County, UT, Kane County, UT, Washington County, UT

The nearest sounding before it

Ely/Yelland Fld, NV (KELY), launched 12:00Z, 6.2 hours before the alert went out and 274 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, Ely/Yelland Fld, NV at 12:00Z on 1992-08-25Temperature 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, Ely/Yelland Fld, NV at 12:00Z on 1992-08-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -34 square meters per square second.19395878Sfc1 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
2328 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
-34 m²/s²
0-3 km storm-relative helicity
12 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 KSLC 251817
SVRSLC
UTC017-025-021-053-252015-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
1214 PM MDT TUE AUG 25 1992
 
THE NATIONAL WEATHER SERVICE IN SALT LAKE CITY HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  215 PM MDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN SOUTH CENTRAL UTAH
 
   ...WESTERN GARFIELD COUNTY...WESTERN KANE COUNTY
 
IN SOUTHWEST UTAH
 
   ...IRON COUNTY...WASHINGTON COUNTY
 
AT 1130 THIS MORNING THUNDERSTORMS DEVELOPED OVER THE SOUTHWEST CORNER
OF THE STATE. THE OBSERVER AT CEDAR CITY AIRPORT AND SEVERAL OTHER
SPOTTERS REPORTED HAIL AND MODERATE TO HEAVY RAIN. THE LARGEST HAIL
REPORTED AT THIS TIME WAS 1/2 INCH AT THE CEDAR CITY AIRPORT.
 
THESE STORMS HAVE THE POTENTIAL TO PRODUCE HAIL TO 3/4 INCHES IN
DIAMETER. RAINFALL MAY EXCEED HALF AN INCH IN A VERY SHORT PERIOD OF
TIME AS WELL. AS OF 12 NOON LIGHTNING DETECTION EQUIPMENT AND
SATELLITE IMAGERY SHOWED ANOTHER THUNDERSTORM IN SOUTHEASTERN NEVADA.
THIS THUNDERSTORM WILL LIKELY MOVE INTO WASHINGTON COUNTY BEFORE 1
PM...PRODUCING GUSTY WINDS...HAIL AND BRIEF HEAVY RAINFALL.
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF
YOUR HOME OR BUSINESS. HEAVY RAINS MAY FLOOD ROADS QUICKLY SO DON'T
DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.

Nearby

Severe Thunderstorm Warnings in Utah, 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.