Alert archive / Utah / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 33, NWS Salt Lake City, UT

September 4, 1995Juab County, Utah

NWS Salt Lake City, UT issued this severe thunderstorm warning at Sep 4, 1995, 4:49 PM MDT for Juab County, Utah. It was in force for 41 min.

The area

The counties it named.

The facts

Issued
Sep 4, 1995, 4:49 PM MDT (22:49 UTC)
Expired
Sep 4, 1995, 5:30 PM MDT
In force
41 min
Issued by
NWS Salt Lake City, UT
Area
Whole counties

County Juab County, UT

The nearest sounding before it

Salt Lake City I, UT (KSLC), launched 12:00Z, 10.8 hours before the alert went out and 141 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 1995-09-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 291 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, Salt Lake City I, UT at 12:00Z on 1995-09-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -40 square meters per square second.193958Sfc1 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
291 J/kg
Mixed-layer CIN
-367 J/kg
Mixed-layer LCL
2073 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
-40 m²/s²
0-3 km storm-relative helicity
53 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WUUS1 KSLC 042255 RRB
SVRSLC
UTC023-042330-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
449 PM MDT MON SEP 4 1995

THE NATIONAL WEATHER SERVICE IN SALT LAKE CITY HAS ISSUED A 
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  545 PM MDT
FOR PEOPLE IN THE FOLLOWING LOCATION...

IN WEST CENTRAL UTAH

   ...EASTERN JUAB COUNTY

AT 455 PM SALT LAKE DOPPLER RADAR SHOWED THE SEVERE THUNDERSTORM THAT
WAS OVER CENTRAL JUAB COUNTY WAS NOW ENDING INTO EASTERN JUAB COUNTY. 
MOVEMENT WAS TO THE EAST NORTHEAST AROUND 15 MPH.  EUREKA...SILVER
CITY AND ELBERTA AND LITTLE SAHARA RECREATION AREA ARE IN OR NEAR THE
PATH OF THIS THUNDERSTORM.

THIS IS A DANGEROUS STORM.  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, Sep 4, 1:30 PM MDT, 3 hours 19 minutes before
UTZALL-050200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
130 PM MDT MON SEP 4 1995

...SHOWERS AND THUNDERSTORMS CONTINUING OVER NORTHWEST UTAH THIS
AFTERNOON...

A VERY MOIST AND UNSTABLE AIRMASS WAS OVER NORTHWEST THIS AFTERNOON.
SCATTERED SHOWERS AND THUNDERSTORMS WERE OVER NORTHEAST NEVADA AND
EXTREME NORTHWEST UTAH.  THIS ACTIVITY WAS MOVING TO THE NORTHEAST AT
15-20 MPH AND WILL BE OVER NORTHWEST UTAH THROUGH AT LEAST EARLY
TONIGHT.

CONDITIONS ARE FAVORABLE FOR LOCAL HEAVY RAIN...SMALL HAIL...FREQUENT
LIGHTNING AND GUSTY WINDS FROM THESE SHOWERS AND THUNDERSTORMS.
IF YOU ARE OUT AND ABOUT IN NORTHWEST UTAH THROUGH EARLY TONIGHT...
KEEP AN EYE ON THE SKY AND BE READY TO SEEK SHELTER IF THREATENING
WEATHER APPROACHES.

ERC...1930Z

WWUS35KRNO0KW
Special weather statement, Sep 4, 1:35 PM MDT, 3 hours 14 minutes before
UTZALL-050200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
130 PM MDT MON SEP 4 1995

...SHOWERS AND THUNDERSTORMS CONTINUING OVER NORTHWEST UTAH THIS
AFTERNOON...

A VERY MOIST AND UNSTABLE AIRMASS WAS OVER NORTHWEST THIS AFTERNOON.
SCATTERED SHOWERS AND THUNDERSTORMS WERE OVER NORTHEAST NEVADA AND
EXTREME NORTHWEST UTAH.  THIS ACTIVITY WAS MOVING TO THE NORTHEAST AT
15-20 MPH AND WILL BE OVER NORTHWEST UTAH THROUGH AT LEAST EARLY
TONIGHT.

CONDITIONS ARE FAVORABLE FOR LOCAL HEAVY RAIN...SMALL HAIL...FREQUENT
LIGHTNING AND GUSTY WINDS FROM THESE SHOWERS AND THUNDERSTORMS.
IF YOU ARE OUT AND ABOUT IN NORTHWEST UTAH THROUGH EARLY TONIGHT...
KEEP AN EYE ON THE SKYZ AND BE READY TO SEEK SHELTER IF THREATENING
WEATHER APPROACHES.

ERC...1930Z

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 4, 4:19 PM MDTSevere Thunderstorm WarningSLCJuab41 min
Sep 4, 5:30 PM MDTSevere Thunderstorm WarningSLCUtah32 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.