Alert archive / Utah / Severe Thunderstorm Warnings in 1993

Severe Thunderstorm Warning 2, NWS Salt Lake City, UT

May 3, 1993Cache County, Utah

NWS Salt Lake City, UT issued this severe thunderstorm warning at May 3, 1993, 7:59 PM MDT for Cache County, Utah. It was in force for 61 min.

The area

The counties it named.

The facts

Issued
May 3, 1993, 7:59 PM MDT (01:59 UTC)
Expired
May 3, 1993, 9:00 PM MDT
In force
61 min
Issued by
NWS Salt Lake City, UT
Area
Whole counties

County Cache County, UT

The nearest sounding before it

Salt Lake City I, UT (KSLC), launched 00:00Z, 2.0 hours before the alert went out and 106 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 00:00Z on 1993-05-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 825 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 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 00:00Z on 1993-05-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 32 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
825 J/kg
Mixed-layer CIN
-5 J/kg
Mixed-layer LCL
3126 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
32 m²/s²
0-3 km storm-relative helicity
63 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.1

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KSLC 040206 RRA
SVRSLC
UTC049-005-011-035-057-003-045-040300-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING FOR HIGH WINDS
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
759 PM MDT MON MAY 3 1993

THE NATIONAL WEATHER SERVICE IN SALT LAKE CITY HAS ISSUED A 
SEVERE THUNDERSTORM WARNING FOR HIGH WINDS 
EFFECTIVE UNTIL  900 PM MDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...

IN CENTRAL UTAH

   ...UTAH COUNTY

IN NORTH CENTRAL UTAH

   ...CACHE COUNTY...DAVIS COUNTY...SALT LAKE COUNTY
   ...WEBER COUNTY

IN NORTHWEST UTAH

   ...BOX ELDER COUNTY...TOOELE COUNTY

HIGH WINDS ASSOCIATED WITH THUNDERSTORMS HAVE BEEN REPORTED AT
WENDOVER AND UTAH TEST RANGE WITH GUSTS TO 58 MPH AND AT THE EAGLE
RANGE ABOUT 50 MILES WEST OF SALT LAKE AIRPORT REPORTED GUSTS TO 64
MPH IN THE PAST 15 MINUTES.

IF YOU ARE CAUGHT OUTSIDE IN A THUNDERSTORM...DO NOT STAND UNDERNEATH
A TALL ISOLATED TREE OR A TELEPHONE POLE.  THESE OBJECTS ARE MOST
LIKELY TO BE STRUCK BY LIGHTNING.

PERSONS DRIVING HIGH PROFILE VEHICLES SHOULD SLOW DOWN DURING HIGH
WIND EPISODES. 

&

The office that day

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

IssuedProductOfficeCountiesLasted
May 3, 7:59 PM MDTSevere Thunderstorm WarningSLCBox Elder, Davis, Salt Lake, Tooele, Weber61 min
May 3, 7:59 PM MDTSevere Thunderstorm WarningSLCUtah61 min
May 4, 1:59 AM MDTSevere Thunderstorm WarningSLCMillard61 min
May 4, 2:00 AM MDTSevere Thunderstorm WarningSLCMillard38 min

Nearby

Severe Thunderstorm Warnings in Utah, 1993Every severe thunderstorm warning in 1993

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.