Alert archive / Utah / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 31, NWS Salt Lake City, UT

August 12, 1995Salt Lake County, Utah County, Utah

NWS Salt Lake City, UT issued this severe thunderstorm warning at Aug 12, 1995, 5:25 PM MDT for Salt Lake County, Utah County, Utah. It was in force for 35 min.

The area

The counties it named.

The facts

Issued
Aug 12, 1995, 5:25 PM MDT (23:25 UTC)
Expired
Aug 12, 1995, 6:00 PM MDT
In force
35 min
Issued by
NWS Salt Lake City, UT
Area
Whole counties

Counties Salt Lake County, UT, Utah County, UT

The nearest sounding before it

Salt Lake City I, UT (KSLC), launched 12:00Z, 11.4 hours before the alert went out and 44 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 1995-08-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 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 1995-08-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 85 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
1 J/kg
Mixed-layer CIN
-461 J/kg
Mixed-layer LCL
2453 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
85 m²/s²
0-3 km storm-relative helicity
130 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 122333 COR
SVRSLC
UTC035-049-130000-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
525 PM MDT SAT AUG 12 1995

THE NATIONAL WEATHER SERVICE IN SALT LAKE CITY HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  600 PM MDT
FOR PEOPLE IN THE FOLLOWING LOCATION...

IN CENTRAL UTAH

   ...NORTHERN UTAH COUNTY...SOUTHERN SALT LAKE COUNTY

DOPPLER RADAR AT 525 PM SHOWED A POSSIBLE SEVERE THUNDERSTORM 5 MILES
WEST OF LEHI.  MOVEMENT WAS TO THE NORTHEAST AT 25 MPH.  STRONG WINDS
IN EXCESS OF 57 MPH AND HAIL ARE POSSIBLE WITH THIS STORM.

WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A STRONG
BUILDING.  DO NOT STAND BY WINDrOWS.  DON'T USE TELEPHONES OR
ELECTRICAL APPLIANCES UNLESS IN AN EMERGENCY UNTIL THE STORM HAS
PASSED.  MOTORISTS SHOULD NOT DRIVE INTO LOW WATER CROSSINGS.

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, Aug 12, 2:10 PM MDT, 3 hours 15 minutes before
UTZALL-162300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
210 PM MDT SAT AUG 12 1995

          ...THUNDERSTORMS OVER SOUTHERN AND EASTERN UTAH...

SALT LAKE AND LAS VEGAS DOPPLER RADARS AT 140 PM MDT SHOW SEVERAL
THUNDERSTORMS OVER SOUTHERN AND EASTERN UTAH.  MOVEMENT OF THE STORMS
WAS TO THE NORTHEAST AT 15 MPH.  THE GREATEST CONCENTRATION OF STORMS
WAS OVER THE SOUTHWEST AND CENTRAL PORTIONS OF THE STATE.  STRONG
THUNDERSTORMS WERE MOVING OUT OF NORTHWEST ARIZONA THROUGH SOUTH
CENTRAL WASHINGTON COUNTY.  THE STRONGEST STORM WAS LOCATED JUST TO
THE EAST OF THE ST. GEORGE AREA.

THUNDERSTORMS WILL CONTINUE TO DEVELOP OVER OR MOVE INTO STATE THE
REST OF THIS AFTERNOON.  STRONG STORMS WITH GUSTY WINDS...SMALL HAIL
AND BRIEF HEAVY RAINFALL ARE POSSIBLE...ESPECIALLY OVER SOUTHERN AND
CENTRAL UTAH.

REMEMBER...THE BEST PROTECTION FROM THE HAZARDS ASSOCIATED WITH
THUNDERSTORMS IS INDOORS OR IN A VEHICLE.  IF STORMS DO APPROACH YOUR
AREA SEEK SHELTER IMMEDIATELY.

MCCCd RSTORMS DO APPROACH YOUR
AREA SEEK SHELTER IMMEDIATELY.

MCC...2010Z

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.