Alert archive / Utah / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 39, NWS Salt Lake City, UT

June 21, 1996Morgan County, Rich County, Utah

NWS Salt Lake City, UT issued this severe thunderstorm warning at Jun 21, 1996, 2:57 PM MDT for Morgan County, Rich County, Utah. It was in force for 33 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 21, 1996, 2:57 PM MDT (20:57 UTC)
Expired
Jun 21, 1996, 3:30 PM MDT
In force
33 min
Issued by
NWS Salt Lake City, UT
Area
Whole counties

Counties Morgan County, UT, Rich County, UT

The nearest sounding before it

Salt Lake City I, UT (KSLC), launched 12:00Z, 9.0 hours before the alert went out and 77 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 1996-06-21Temperature 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 12:00Z on 1996-06-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 103 square meters per square second.1939587897Sfc1 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
2304 m above ground
0-6 km bulk shear
46 kt
0-1 km storm-relative helicity
103 m²/s²
0-3 km storm-relative helicity
231 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 212102
SVRSLC
UTC029-033-212130-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
257 PM MDT FRI JUN 21 1996

THE NATIONAL WEATHER SERVICE IN SALT LAKE CITY HAS EXTENDED THE
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  330 PM MDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...

IN NORTH CENTRAL UTAH

   ...EASTERN MORGAN COUNTY...RICH COUNTY

 AT 255 PM DOPPLER RADAR INDICATED POSSIBLE SEVERE THUNDERSTORMS IN
WEST CENTRAL RICH COUNTY AND EXTREME EASTERN MORGAN COUNTY.  THESE
STORMS ARE MOVING TOWARD THE NORTH OR NORTHEAST AT 30-35 MPH. 

THESE ARE DANGEROUS STORMS.  IF YOU ARE IN ITS PATH YOU SHOULD
PREPARE FOR DAMAGING WIND IN EXCESS OF 55 MPH...LARGE HAIL...AND
DEADLY LIGHTNING.  PEOPLE OUTSIDE SHOULD MOVE TO A
SHELTER...PREFERABLY INSIDE A STRONG BUILDING BUT STAY AWAY FROM
WINDOWS.

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, Jun 21, 9:04 AM MDT, 5 hours 53 minutes before
UTZ004-005-008-012-013-211700-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
905 AM MDT FRI JUN 21 1996

...STRONG THUNDERSTORMS IN EASTERN UTAH...

A NUMBER OF STRONG THUNDERSTORMS HAVE DEVELOPED OVER EASTERN UTAH
THIS MORNING.  AT 850 AM THE STRONGEST STORMS WERE LOCATED OVER
EASTERN EMERY AND WESTERN GRAND COUNTIES EXTENDING SOUTHWEST ACROSS
HANKSVILLE TO NEAR BOULDER.  THESE STORMS WERE MOVING RAPIDLY
NORTHEAST AT MORE THAN 40 MPH.  SOME OF THE STRONGER STORMS WILL
CROSS HIGHWAY 6 NORTH OF WADSET AND PASS JUST EAST OF THE
CENOSITE/EAST CARBON CITY AREA BY 930 AM.

BRIEF HEAVY RAIN...SMALL HAIL...AND STRONG GUSTY WINDS MAY ACCOMPANY
THESE STORMS.

ALTHOUGH \THERE MAY BE A TEMPORARY DECREASE IN THUNDERSTORM ACTIVITY
DURING THE LATE MORNING HOURS...ADDITIONAL STORMS...POSSIBLY
STRONG...ARE EXPECTED TO DEVELOP DURING THE AFTERNOON.

DRS...1503Z
Special weather statement, Jun 21, 9:12 AM MDT, 5 hours 45 minutes before
UTZ004-005-008-012-013-211700-

SPECIAL WEATHER STATEMENT...CORRECTION
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
905 AM MDT FRI JUN 21 1996

...STRONG THUNDERSTORMS IN EASTERN UTAH...

CORRECTION FOR CITY NAMES THAT GOT GARBLED

A NUMBER OF STRONG THUNDERSTORMS HAVE DEVELOPED OVER EASTERN UTAH
THIS MORNING.  AT 850 AM THE STRONGEST STORMS WERE LOCATED OVER
EASTERN EMERY AND WESTERN GRAND COUNTIES EXTENDING SOUTHWEST ACROSS
HANKSVILLE TO NEAR BOULDER.  THESE STORMS WERE MOVING RAPIDLY
NORTHEAST AT MORE THAN 40 MPH.  SOME OF THE STRONGER STORMS WILL
CROSS HIGHWAY 6 NORTH OF WOODSIDE AND PASS JUST EAST OF THE
SUNNYSIDE/EAST CARBON CITY AREA BY 930 AM.

BRIEF HEAVY RAIN...SMALL HAIL...AND STRONG GUSTY WINDS MAY ACCOMPANY
THESE STORMS.

ALTHOUGH THERE MAY BE A TEMPORARY DECREASE IN THUNDERSTORM ACTIVITY
DURING THE LATE MORNING HOURS...ADDITIONAL STORMS...POSSIBLY
STRONG...ARE EXPECTED TO DEVELOP DURING THE AFTERNOON.

DRS.~..1503Z

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 20, 7:24 PM MDTSevere Thunderstorm WarningSLCDuchesne36 min
Jun 21, 11:43 AM MDTSevere Thunderstorm WarningSLCJuab, Utah62 min
Jun 21, 12:04 PM MDTSevere Thunderstorm WarningSLCSanpete41 min
Jun 21, 12:12 PM MDTSevere Thunderstorm WarningSLCWasatch2 hr
Jun 21, 12:43 PM MDTSevere Thunderstorm WarningSLCSummit2 hr
Jun 21, 12:43 PM MDTSevere Thunderstorm WarningSLCJuab, Sanpete, Utah47 min
Jun 21, 1:10 PM MDTSevere Thunderstorm WarningSLCDuchesne, Summit110 min
Jun 21, 1:26 PM MDTSevere Thunderstorm WarningSLCMorgan, Rich94 min
Jun 21, 1:35 PM MDTSevere Thunderstorm WarningSLCSanpete, Utah85 min
Jun 21, 2:11 PM MDTSevere Thunderstorm WarningSLCUtah, Wasatch34 min
Jun 21, 3:01 PM MDTSevere Thunderstorm WarningSLCDuchesne59 min
Jun 21, 3:26 PM MDTSevere Thunderstorm WarningSLCRich34 min

Nearby

Severe Thunderstorm Warnings in Utah, 1996Every severe thunderstorm warning in 1996

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.