Severe Thunderstorm Warning 41, NWS Salt Lake City, UT

UTAH AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SALT LAKE CITY UTAH
320 PM MDT FRI SEP 01 2000

SYNOPSIS...THE MOIST AND UNSTABLE AIRMASS OVER UTAH THIS EVENING
WILL BE REPLACED BY DRIER AND COOLER AIR LATER TONIGHT AND SATURDAY.
THE AIRMASS WILL BEGIN TO WARM SLOWLY ON SUNDAY BUT REMAIN MOSTLY
DRY.

DISCUSSION...CONVECTION HAS FIRED UP OVER MOST OF THE AREA THIS
AFTERNOON WITH SOME OF THEM BECOMING SEVERE.  MOST OF THE STRONG
ONES HAVE BEEN IN RURAL AREAS BUT WE HAVE ONE CONFIRMED LARGE HAIL
REPORT AND ALSO A 49KT GUST FROM A DIFFERENT STORM AT AN OBSERVING
STATION.  ACTIVITY LIKELY TO CONTINUE UNTIL THE TROF KICKS ACROSS
THE AREA THIS EVENING ALTHOUGH IT IS BEING RESTRAINED A BIT IN THE
SOUTHWEST BY THE DRYING AIRMASS.  WE MAY ALSO BEGIN TO LOSE THE
SEVERITY AS THE AIRMASS BEGINS TO COOL DURING THE EVENING.  THE 18Z
ETA SUGGEST THE MAIN VORTICIY ADVECTION AT 300MB WILL BE PUSHING
INTO SOUTHWEST UT THE NEXT FEW HOURS THEN SHIFT TOWARD THE NORTHWEST
DURING THE EVENING.  THE VORTICITY CENTER IS FORECAST TO BE NEAR SLC
AT 06Z AND IT SHOULD END THE THREAT OF ANY SIGNIFICANT WEATHER AS IT
MOVES PAST.

MODELS STILL INDICATE SOME LOW/MID LEVEL MOISTURE OVER NORTHWEST UT
SAT MORNING AND WILL KEEP A CHANCE OF SHOWERS FROM ABOUT SLC
NORTHWARD ALTHOUGH THEY SHOULD BE RELATIVELY WEAK AND ANY
PRECIPITATION AMOUNTS LIGHT.  OTHERWISE IT SHOULD BE DRY STATEWIDE
SAT/SUN.  FAIRLY COOL AIR MOVING IN WITH THE TROF WITH FWC GUIDANCE
LOOKING TOO WARM AT LEAST FOR SLC.  BUT THERE SHOULD BE SEVERAL
DEGREES OF WARMING FOR SUN.

WILL KEEP LABOR DAY DRY WITH CONTINUED WARMING AHEAD OF THE NEXT
TROF.  THE WILL KEEP THE CHANCE OF SHOWERS IN NORTHERN UT TUE BUT
DROP IT FROM THE SOUTH WHERE IT LOOKS TOO DRY.  IT WILL ALSO COOL
SIGNIFICANTLY AGAIN TUE AND THAT COOLNESS SHOULD CONTINUE INTO WED
BUT WITHOUT THE SHOWER THREAT.

SLC 42-- CDC 1-00  SANDERS

.SL7C...NONE.

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SALT LAKE CITY, UT
641 PM MDT FRI SEP 1 2000

TIME(MDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0243 PM    12 NE DUGWAY              UT   .75 INCH HAIL
09/01/00   TOOELE

0250 PM    7 E SANDY                 UT   .75 INCH HAIL
09/01/00   SALT LAKE                      HAIL OCCURRED AT SOLITUDE
                                          SKI AREA.

0315 PM    PARK CITY                 UT   .75 INCH HAIL
09/01/00   SUMMIT

0415 PM    HERRIMAN                  UT   1.50 INCH HAIL
09/01/00   SALT LAKE

0430 PM    2 N PROVO                 UT   .75 INCH HAIL
09/01/00   UTAH

0630 PM    36 NW SALT LAKE CITY      UT    WIND GUSTS 78 MPH
09/01/00   TOOELE

0715 PM    WENDOVER                  UT    WIND GUSTS 61 MPH
09/01/00   TOOELE

0745 PM    40 NW SALT LAKE CITY      UT    WIND GUSTS 71 MPH
09/01/00   BOX ELDER

0800 PM    35 NW SALT LAKE CITY      UT    WIND GUSTS 61 MPH
09/01/00   BOX ELDER

0818 PM   SALT LAKE CITY             UT    STRONG WINDS
09/01/00  SALT LAKE                        TREE TOPPLED ON CARS
                                           2ND SOUTH AND 2ND EAST