Alert archive / Utah / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 69, NWS Salt Lake City, UT

July 31, 1996Box Elder County, Cache County, Utah

NWS Salt Lake City, UT issued this severe thunderstorm warning at Jul 31, 1996, 5:59 PM MDT for Box Elder County, Cache County, Utah. It was in force for 46 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
Jul 31, 1996, 5:59 PM MDT (23:59 UTC)
Expired
Jul 31, 1996, 6:45 PM MDT
In force
46 min
Issued by
NWS Salt Lake City, UT
Area
Whole counties

Counties Box Elder County, UT, Cache County, UT

The nearest sounding before it

Salt Lake City I, UT (KSLC), launched 12:00Z, 12.0 hours before the alert went out and 103 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 1996-07-31Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 1996-07-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -14 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2564 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
-14 m²/s²
0-3 km storm-relative helicity
64 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 010002
SVRSLC
UTC005-003-010045-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
559 PM MDT WED JUL 31 1996

THE NATIONAL WEATHER SERVICE IN SALT LAKE CITY HAS ISSUED A 
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  645 PM MDT
FOR PEOPLE IN THE FOLLOWING LOCATION...

IN NORTH CENTRAL UTAH

   ...WEST CENTRAL CACHE COUNTY

   ...EXTREME NORTHEAST BOX ELDER COUNTY

AT 555 PM DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 5 MILES NORTH
OF TREMONTON.

THE THUNDERSTORM WAS MOVING EAST AT 10 MPH.
TOWNS IN THE PATH OF THIS STORM INCLUDED ...DEWEYVILLE...BENSON AND
LOGAN. 

IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER FROM THE WEATHER IN A STRONG
BUILDING.  DAMAGING WIND...LARGE HAIL...VERY HEAVY RAIN...AND DEADLY
LIGHTNING ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS.  STAY INSIDE AWAY
FROM WINDOWS UNTIL THE STORM HAS PASSED.

ERC...2359Z

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 31, 3:29 PM MDTSevere Thunderstorm WarningSLCBox Elder61 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.