Alert archive / Utah / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 26, NWS Salt Lake City, UT

July 21, 1995Duchesne County, Utah

NWS Salt Lake City, UT issued this severe thunderstorm warning at Jul 21, 1995, 9:09 PM MDT for Duchesne County, Utah. It was in force for 66 min.

The area

The counties it named.

The facts

Issued
Jul 21, 1995, 9:09 PM MDT (03:09 UTC)
Expired
Jul 21, 1995, 10:15 PM MDT
In force
66 min
Issued by
NWS Salt Lake City, UT
Area
Whole counties

County Duchesne County, UT

The nearest sounding before it

Salt Lake City I, UT (KSLC), launched 00:00Z, 3.2 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 00:00Z on 1995-07-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 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 00:00Z on 1995-07-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 50 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
3513 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
50 m²/s²
0-3 km storm-relative helicity
87 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 220326 RRA
SVRSLC
UTC013-220415-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING FOR HIGH WINDS
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
909 PM MDT FRI JUL 21 1995

THE NATIONAL WEATHER SERVICE IN SALT LAKE CITY HAS ISSUED A 
SEVERE THUNDERSTORM WARNING FOR HIGH WINDS 
EFFECTIVE UNTIL 1015 PM MDT
FOR PEOPLE IN THE FOLLOWING LOCATION...

IN NORTHEAST UTAH

   ...EASTERN DUCHESNE COUNTY


SPOTTERS AND WEATHER RADAR INDICATE A SEVERE THUNDERSTORM OVER
EASTERN DUCHESNE COUNTY NEAR THE TOWN OF DUCHESNE.  A WIND GUST OF 74
MPH WAS REPORTED IN DUCHESNE.  THIS STORM WAS MOVING EAST AT 15 MPH. 
THE TOWNS OF BRIDGELAND...IOKA...AND MYTON WILL BE AFFECTED OVER THE
NEXT 45 MINUTES.  THOSE TRAVELLING ON STATE ROUTE 40 IN EASTERN
DUCHESNE COUNTY WILL BE AFFECTED AS WELL.

THE HIGH WINDS ARE STRONG ENOUGH TO CAUSE PROPERTY DAMAGE. 
PRECAUTIONS SHOULD BE TAKEN TO TIE DOWN LOOSE OBJECTS.  THOSE IN THE
PATH OF THIS STORM SHOULD TAKE COVER 
IMMEDIATELY.

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

Local storm report, Jul 21, 7:50 PM MDT, 1 hour 19 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
750 PM MDT FRI JUL 21 1995

TIME(MDT)   .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
            ....COUNTY LOCATION....

0608 PM     PROVO                     UT   74 MPH TSTM GUST
07/18/95    UTAH

0630 PM     TOOELE                    UT   WOMAN STRUCK BY LIGHTNING
07/21/95    TOOELE

0650 PM     TOOELE                    UT   1.25 INCH HAIL
07/21/95    TOOELE                         HAIL OCCURRED FOR VERY
                                           BRIEF PERIOD.  NO REPORTED
                                           DAMAGE.
Local storm report, Jul 21, 7:51 PM MDT, 1 hour 18 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
750 PM MDT FRI JUL 21 1995

TIME(MDT)   .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
            ....COUNTY LOCATION....

0608 PM     PROVO                     UT   74 MPH TSTM GUST
07/18/95    UTAH

0630 PM     TOOELE                    UT   WOMAN STRUCK BY LIGHTNING
07/21/95    TOOELE

0650 PM     TOOELE                    UT   1.25 INCH HAIL
07/21/95    TOOELE                         HAIL OCCURRED FOR VERY
                                           BRIEF PERIOD.  NO REPORTED
                                           DAMAGE.

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 21, 8:51 PM MDTSevere Thunderstorm WarningSLCBox Elder54 min
Jul 21, 9:40 PM MDTSevere Thunderstorm WarningSLCBox Elder65 min
Jul 22, 3:12 PM MDTSevere Thunderstorm WarningSLCBox Elder, Cache48 min

Nearby

Severe Thunderstorm Warnings in Utah, 1995Every severe thunderstorm warning in 1995

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.