Alert archive / Utah / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 21, NWS Salt Lake City, UT

June 10, 1997Duchesne County, Utah

NWS Salt Lake City, UT issued this severe thunderstorm warning at Jun 10, 1997, 1:10 PM MDT for Duchesne County, Utah. It was in force for 45 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
Jun 10, 1997, 1:10 PM MDT (19:10 UTC)
Expired
Jun 10, 1997, 1:55 PM MDT
In force
45 min
Issued by
NWS Salt Lake City, UT
Area
Whole counties

County Duchesne County, UT

The radar

The Salt Lake City radar (KMTX), 201 km from the middle of the area, began a volume at 19:14 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Salt Lake City I, UT (KSLC), launched 12:00Z, 7.2 hours before the alert went out and 136 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 1997-06-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 15 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°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 1997-06-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 96 square meters per square second.193958Sfc1 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
15 J/kg
Mixed-layer CIN
-46 J/kg
Mixed-layer LCL
875 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
96 m²/s²
0-3 km storm-relative helicity
103 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KSLC 101908 RRA
SVRSLC
UTC013-101955-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
110 PM MDT TUE JUN 10 1997

THE NATIONAL WEATHER SERVICE IN SALT LAKE CITY UT HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 155 PM MDT
FOR PEOPLE IN THE FOLLOWING LOCATION...

IN NORTHEASTERN UTAH

   ...CENTRAL AND EAST CENTRAL DUCHESNE COUNTY
 
AT 105 PM MDT...A SEVERE THUNDERSTORM WAS INDICATED BY DOPPLER
RADAR 12 MILES SOUTHWEST OF ROOSEVELT MOVING EAST AT 15 MPH.

THIS STORM CAN BE EXPECTED IN THE VICINITY OF...
IOKA                   AT AROUND 105 PM MDT
MYTON                  AT AROUND 110 PM MDT
ROOSEVELT              AT AROUND 130 PM MDT
 
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.

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 10, 12:00 PM MDTSevere Thunderstorm WarningSLCWayne45 min
Jun 10, 12:47 PM MDTSevere Thunderstorm WarningSLCWayne48 min
Jun 10, 1:35 PM MDTSevere Thunderstorm WarningSLCWayne45 min
Jun 10, 2:23 PM MDTSevere Thunderstorm WarningSLCDavis, Salt Lake47 min
Jun 10, 2:28 PM MDTSevere Thunderstorm WarningSLCTooele62 min
Jun 10, 3:02 PM MDTSevere Thunderstorm WarningSLCMorgan, Salt Lake, Summit48 min
Jun 10, 3:34 PM MDTSevere Thunderstorm WarningSLCTooele41 min
Jun 10, 4:04 PM MDTSevere Thunderstorm WarningSLCTooele61 min
Jun 10, 5:02 PM MDTSevere Thunderstorm WarningSLCDavis, Salt Lake, Tooele63 min
Jun 10, 5:03 PM MDTSevere Thunderstorm WarningSLCDavis, Salt Lake, Tooele62 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; radar from the NEXRAD Level II archive.