Severe Thunderstorm Warning 93, NWS Salt Lake City, UT

000 
WWUS55 KSLC 240001
SVSSLC

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
600 PM MDT FRI SEP 23 2005

UTC003-240015-
/O.CON.KSLC.SV.W.0093.000000T0000Z-050924T0015Z/
BOX ELDER UT-
600 PM MDT FRI SEP 23 2005

...A SEVERE THUNDERSTORM WARNING CONTINUES UNTIL 615 PM MDT FOR EAST
CENTRAL BOX ELDER COUNTY...

AT 556 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DESTRUCTIVE WINDS IN EXCESS OF 70 MPH.  THIS STORM WAS
LOCATED 17 MILES SOUTHWEST OF CORINNE...OR ABOUT 21 MILES WEST OF
BRIGHAM CITY...MOVING NORTHEAST AT 30 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  7 MILES WEST OF CORINNE BY 615 PM MDT

IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS.
REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE
STRUCK BY LIGHTNING.

IF ON OR NEAR THE GREAT SALT LAKE NEAR WILLARD BAY...GET OUT OF THE 
WATER AND MOVE INDOORS OR INSIDE A VEHICLE. REMEMBER...LIGHTNING CAN 
STRIKE OUT TO 15 MILES FROM THE PARENT THUNDERSTORM. IF YOU CAN HEAR 
THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING. MOVE TO 
SAFE SHELTER NOW. DONT BE CAUGHT ON THE WATER IN A THUNDERSTORM

LAT...LON 4151 11250 4137 11243 4150 11204 4169 11225

$$

BAS

000 
WWUS55 KSLC 240017
SVSSLC

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
615 PM MDT FRI SEP 23 2005

UTC003-240025-
/O.EXP.KSLC.SV.W.0093.000000T0000Z-050924T0015Z/
BOX ELDER UT-
615 PM MDT FRI SEP 23 2005

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL BOX ELDER COUNTY
EXPIRES AT 615 PM MDT...

THE SEVERE THUNDERSTORM IN EAST CENTRAL BOX ELDER HAS WEAKENED AND 
IS NO LONGER SEVERE. GUSTY WINDS AND SMALL HAIL AS WELL AS DANGEROUS 
LIGHTNING ARE STILL POSSIBLE WITH THIS STORM. THIS STORM WILL MOVE 
EAST INTO THE WASATCH FRONT NEAR BRIGHAM CITY.

LAT...LON 4151 11250 4137 11243 4150 11204 4169 11225

$$

BAS

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
315 PM MDT FRI SEP 23 2005

.SYNOPSIS...A PACIFIC TROUGH WILL MOVE ACROSS NORTHERN UTAH SATURDAY
AND SATURDAY NIGHT. THE ASSOCIATED COLD FRONT WILL MOVE INTO
NORTHWEST UTAH EARLY SATURDAY...THEN STALL ACROSS CENTRAL UTAH ON
SUNDAY. A MILD SOUTHERLY FLOW WILL RETURN TO THE AREA MONDAY.

&&

.DISCUSSION...UPPER LEVEL SHORT WAVE FROM THIS MORNING HAS CLEARED
THE AREA AND AIRMASS IS DESTABILIZING AGAIN IN ADVANCE OF PACIFIC NW
TROF. THIS CONVECTION WILL PERSIST OVER NORTHERN UT THROUGH THE NIGHT
AS THE MAIN UPPER TROF MOVES INTO THE NRN ROCKIES AND THE COLD FRONT
APPROACHES. THE FRONT SHOULD BE SOUTH OF SLC BY 12Z SAT BUT ONLY
PUSHES ABOUT HALF WAY THROUGH THE STATE DURING THE DAY BEFORE IT
STALLS. THIS FRONTAL BOUNDARY...COMBINED WITH SOME DYNAMIC SUPPORT
WILL GENERATE SCATTERED SHOWERS OVER NRN AND CENTRAL PORTIONS OF THE
AREA DURING THE DAY SATURDAY AS THE UPPER TROF BECOMES POSITIVELY
TILTED AND THE AXIS REMAINS TO OUR WEST.

THE TROF EVENTUALLY SPLITS ON SUNDAY WITH THE NORTHERN PIECE HEADING
INTO THE PLAINS AND THE SOUTHWESTERN PORTION FORMING A CLOSED LOW
ALONG THE CA COAST. THIS LOW IS FORECAST TO START TO SEND MOISTURE
BACK NORTH INTO THE AREA MONDAY THEN IT OPENS UP AND SHEARS EAST
THRU NRN UT TUE. THIS TOO LEAVES A HANG BACK POS TILT TROF ACROSS
THE GREAT BASIN THAT FORMS YET ANOTHER CLOSED LOW OVER NV ON WED
THAT THEN CROSS UT NEXT THU.

HAVE KEPT CHANCE POPS OVER THE NORTH TONIGHT THRU SAT NIGHT THEN
DRIED MOST OF THE AREA SUN. REINTRODUCED POPS MON THRU TUE BUT LEFT
ONLY TOKEN POPS IN WED AND BEYOND DUE TO LACK OF CONFIDENCE IN THE
MODEL SCENARIO THAT FAR OUT.

&&

.AVIATION...SEE SLCTAFSLC.

&&

.SLC WATCHES/WARNINGS/ADVISORIES...
UT...NONE.
WY...NONE.

&&

WILENSKY