Alert archive / Utah / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 119, NWS Salt Lake City, UT

October 2, 1997Garfield County, Utah

NWS Salt Lake City, UT issued this severe thunderstorm warning at Oct 2, 1997, 2:45 PM MDT for Garfield 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
Oct 2, 1997, 2:45 PM MDT (20:45 UTC)
Expired
Oct 2, 1997, 3:45 PM MDT
In force
60 min
Issued by
NWS Salt Lake City, UT
Area
Whole counties

County Garfield County, UT

The nearest sounding before it

Grand Junction, CO (KGJT), launched 12:00Z, 8.8 hours before the alert went out and 293 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, Grand Junction, CO at 12:00Z on 1997-10-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3 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, Grand Junction, CO at 12:00Z on 1997-10-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 90 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
3 J/kg
Mixed-layer CIN
-218 J/kg
Mixed-layer LCL
2262 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
90 m²/s²
0-3 km storm-relative helicity
123 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 022047 RRA
SVRSLC
UTC017-022145-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
245 PM MDT THU OCT 2 1997

THE NATIONAL WEATHER SERVICE IN SALT LAKE CITY UT HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 345 PM MDT
FOR PEOPLE IN THE FOLLOWING LOCATION...

IN SOUTH CENTRAL UTAH

   ...SOUTH CENTRAL GARFIELD COUNTY
 
AT 243 PM MDT...A SEVERE THUNDERSTORM WAS INDICATED BY DOPPLER
RADAR 16 MILES EAST OF ESCALANTE OR 16 MILES SOUTH OF BOULDER
MOVING NORTHEAST AT 35 MPH.

THIS STORM IS EXPECTED TO REMAIN IN RURAL AREAS
 
PERSONS PLANNING OUTDOOR ACTIVITIES SHOULD BE ALERT FOR STRONG
WINDS...HEAVY SHOWERS...AND HAIL.

THIS THUNDERST|ORM MAY PRODUCE STRONG GUSTY WIND...LARGE HAIL...AND
FREQUENT LIGHTNING.  TAKE COVER WHEN THREATENING WEATHER APPROACHES.

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 2, 3:38 PM MDTSevere Thunderstorm WarningSLCKane, Washington62 min
Oct 2, 4:56 PM MDTSevere Thunderstorm WarningSLCWashington44 min

Nearby

Severe Thunderstorm Warnings in Utah, 1997Every severe thunderstorm warning in 1997

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.