Alert archive / Utah / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 4, NWS Salt Lake City, UT

April 12, 1996Kane County, Washington County, Utah

NWS Salt Lake City, UT issued this severe thunderstorm warning at Apr 12, 1996, 7:35 PM MDT for Kane County, Washington County, Utah. It was in force for 60 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
Apr 12, 1996, 7:35 PM MDT (01:35 UTC)
Expired
Apr 12, 1996, 8:35 PM MDT
In force
60 min
Issued by
NWS Salt Lake City, UT
Area
Whole counties

Counties Kane County, UT, Washington County, UT

The nearest sounding before it

Flgstf/Belemont, AZ (KFGZ), launched 00:00Z, 1.6 hours before the alert went out and 242 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, Flgstf/Belemont, AZ at 00:00Z on 1996-04-13Temperature 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, Flgstf/Belemont, AZ at 00:00Z on 1996-04-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 104 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
2182 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
104 m²/s²
0-3 km storm-relative helicity
157 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 130140
SVRSLC
UTC053-025-130235-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
735 PM MDT FRI APR 12 1996

THE NATIONAL WEATHER SERVICE IN SALT LAKE CITY HAS ISSUED A 
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  835 PM MDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...

IN SOUTHWEST UTAH

   ...EASTERN WASHINGTON COUNTY AND WESTERN KANE COUNTY...

BETWEEN 700 AND 730 PM THUNDERSTORMS MOVING THROUGH SOUTH CENTRAL
WASHINGTON COUNTY PRODUCED STRONG WINDS IN EXCESS OF 60 MPH.  

THESE THUNDERSTORMS WERE MOVING EAST NORTHEAST AT 15-20 MPH AND WILL
BE MOVING INTO EASTERN WASHINGTON AND WESTERN KANE COUNTY.

TOWNS AND LOCATIONS IN THE PATH OF THESE STORMS INCLUDE ZION NATIONAL
PARK...ROCKVILLE...SPRINGDALE IN EASTERN WASHINGTON COUNTY...AND
GLENDALE...ORDERVILLE...MOUNT CARMEL JUNCTION...AND KANAB IN WESTERN
KANE COUNTY. 

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 57 MPH.


MS...0135Z

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, Apr 12, 6:15 PM MDT, 1 hour 20 minutes before
UTZ006-009-011-013-130200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
613 PM MDT FRI APR 12 1996

A LINE OF THUNDERSTORMS HAS BEEN MOVING EAST ACROSS THE VALLEYS OF
SOUTHWEST UTAH DURING THE PAST HOUR PRODUCING BRIEF HEAVY RAIN...AND
STRONG GUSTY WINDS OF 40-50 MPH WITH SOME HIGHER GUSTS.  GUSTS IN
EXCESS OF 50 MPH HAVE BEEN REPORTED FROM DELTA...CEDAR CITY...AND ST
GEORGE AS THE COLD FRONT MOVED THROUGH THEIR REGION.  THIS FRONT IS
MOVING TO THE EAST AT 20-30 MPH AND WILL CONTINUE TO EFFECT EASTERN
PORTIONS OF BEAVER...IRON...AND WASHINGTON COUNTIES DURING THE NEXT
HOUR...AND PIUTE...WAYNE...GARFIELD...AND KANE COUNTIES UNTIL 9PM.

IF THREATENING WEATHER APPROACHES YOUR AREA...SEEK SHELTER
IMMEDIATELY.

MS...0013Z

The office that day

Everything else NWS Salt Lake City, UT issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 12, 6:51 PM MDTSevere Thunderstorm WarningSLCWashington54 min

Nearby

Severe Thunderstorm Warnings in Utah, 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.