Alert archive / Utah / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 21, NWS Salt Lake City, UT

June 12, 1996Box Elder County, Utah

NWS Salt Lake City, UT issued this severe thunderstorm warning at Jun 12, 1996, 8:25 PM MDT for Box Elder County, Utah. It was in force for 35 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 12, 1996, 8:25 PM MDT (02:25 UTC)
Expired
Jun 12, 1996, 9:00 PM MDT
In force
35 min
Issued by
NWS Salt Lake City, UT
Area
Whole counties

County Box Elder County, UT

The nearest sounding before it

Elko, NV (KLKN), launched 00:00Z, 2.4 hours before the alert went out and 118 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, Elko, NV at 00:00Z on 1996-06-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 34 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Elko, NV at 00:00Z on 1996-06-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 26 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
34 J/kg
Mixed-layer CIN
-47 J/kg
Mixed-layer LCL
3595 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
26 m²/s²
0-3 km storm-relative helicity
65 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 130229
SVRSLC
UTC003-130300-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
825 PM MDT WED JUN 12 1996

THE NATIONAL WEATHER SERVICE IN SALT LAKE CITY HAS CONTINUED THE 
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  900 PM MDT
FOR PEOPLE IN THE FOLLOWING LOCATION...

IN NORTHWEST UTAH

   ...NORTHWESTERN BOX ELDER COUNTY

THUNDERSTORMS WILL CONTINUE TO MOVE THROUGH THE EXTREME NORTHWEST
CORNER OF BOX ELDER COUNTY FOR ABOUT THE NEXT HALF HOUR.  THESE
STORMS PRODUCED WINDS IN EXCESS OF 55 MPH AS THEY MOVED THROUGH
NORTHEAST NEVADA.  THE COMMUNITIES IN THE PATH OF THESE WINDS INCLUDE
GROUSE CREEK...ETNA...LYNN AND YOST.

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55 MPH...
HAIL...DEADLY LIGHTNING...AND BRIEF 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 12, 7:30 PM MDTSevere Thunderstorm WarningSLCBox Elder60 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.