Alert archive / Utah / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 3, NWS Salt Lake City, UT

May 26, 1994Utah County, Utah

NWS Salt Lake City, UT issued this severe thunderstorm warning at May 26, 1994, 5:30 PM MDT for Utah County, Utah. It was in force for 30 min.

The area

The counties it named.

The facts

Issued
May 26, 1994, 5:30 PM MDT (23:30 UTC)
Expired
May 26, 1994, 6:00 PM MDT
In force
30 min
Issued by
NWS Salt Lake City, UT
Area
Whole counties

County Utah County, UT

The nearest sounding before it

Salt Lake City I, UT (KSLC), launched 12:00Z, 11.5 hours before the alert went out and 76 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, Salt Lake City I, UT at 12:00Z on 1994-05-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 10 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Salt Lake City I, UT at 12:00Z on 1994-05-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 2 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
10 J/kg
Mixed-layer CIN
-297 J/kg
Mixed-layer LCL
2715 m above ground
0-6 km bulk shear
8 kt
0-1 km storm-relative helicity
2 m²/s²
0-3 km storm-relative helicity
41 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 262333 RRA
SVRSLC
UTC049-270000-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING FOR HIGH WINDS
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
530 PM MDT THU MAY 26 1994

THE NATIONAL WEATHER SERVICE IN SALT LAKE CITY HAS ISSUED A 
SEVERE THUNDERSTORM WARNING FOR HIGH WINDS 
EFFECTIVE UNTIL  600 PM MDT
FOR PEOPLE IN THE FOLLOWING LOCATION...

IN CENTRAL UTAH

   ...UTAH COUNTY

STRONG THUNDERSTORM GENERATED WINDS GUSTING TO 73 MPH HAVE BEEN
REPORTED BY WEATHER SPOTTERS ON THE BYU CAMPUS AT ABOUT 525 PM.

THIS STRONG WIND GUST WILL CONTINUE TO SPREAD ACROSS UTAH COUNTY OVER
THE NEXT HALF HOUR BUT SHOULD ALSO GRADUALLY WEAKEN AS IT SPREADS
OUT.  

SEVERE THUNDERSTORMS CAN PRODUCE DAMAGING WIND...DESTRUCTIVE HAIL...
DEADLY LIGHTNING...AND VERY HEAVY RAIN.  STAY INSIDE AWAY FROM
WINDOWS UNTIL THE STORM HAS PASSED.


&

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, May 26, 3:45 PM MDT, 1 hour 45 minutes before
UTZALL-260100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
345 PM MDT THU MAY 26 1994

     ...NUMEROUS THUNDERSTORMS OVER UTAH'S MOUNTAINS...

STRONG DAYTIME HEATING HAS SPAWNED WIDESPREAD THUNDERSTORM ACTIVITY
OVER UTAH'S MOUNTAINS THIS AFTERNOON.  THE GREATEST CONCENTRATION OF
STORMS WERE OVER THE SOUTHWEST MOUNTAINS NORTH OF CEDAR CITY AND THE
MOUNTAINS AROUND THE SALT LAKE CITY METRO AREA.  WEAK WINDS ALOFT
WILL KEEP THE STORMS CLOSE TO THE MOUNTAINS AND ADJACENT VALLEYS.

BECAUSE DAYTIME HEATING IS SUPPORTING THE THUNDERSTORMS, EXPECT THEM
TO DECREASING AROUND SUNSET THIS EVENING.  ALL OF THE COMMON
HAZARDOUS SUCH AS SMALL HAIL, BRIEF HEAVY RAIN, GUSTY WINDS AND
CLOUD-TO-GROUND LIGHTNING CAN OCCUR WITH THESE THUNDERSTORMS.

SEEK SHELTER IMMEDIATELY WHEN THUNDERSTORMS STRIKE TO AVOID THE
DANGERS OF THE PREVIOUSLY MENTION WEATHER HAZARDS.  IF OUTDOOR, SEEK
SHELTER IN A VEHICLE OR LOW LYING AREAS.  A<VOID LONE TREES OR OTHER
SOLITARY OBJECTS THAT CAN ATTRACT LIGHTNING STRIKES.

MCC...2145Z

Nearby

Severe Thunderstorm Warnings in Utah, 1994Every severe thunderstorm warning in 1994

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.