Severe Thunderstorm Warning 59, NWS Salt Lake City, UT

Issued

Aug 15, 2001, 5:09 PM MDT (23:09 UTC)

Expired

Aug 15, 2001, 6:00 PM MDT

In force

51 min

Issued by

NWS Salt Lake City, UT

Area

Whole counties; the outline is the Mesonet’s reconstruction

Counties Garfield County, UT, Kane County, UT

087 
WUUS55 KSLC 152312
SVRSLC
UTC017-025-160000-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
509 PM MDT WED AUG 15 2001

THE NATIONAL WEATHER SERVICE IN SALT LAKE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EXTREME SOUTH CENTRAL GARFIELD COUNTY IN UTAH
  NORTHEASTERN KANE COUNTY IN UTAH

* UNTIL 600 PM MDT

* AT 503 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM OVER NORTHEASTERN KANE COUNTY...OR ABOUT 25
  MILES SOUTHEAST OF ESCALANTE...MOVING EAST AT 25 MPH.

* THE SEVERE THUNDERSTORM WILL BE...
OVER RURAL NORTHEASTERN KANE COUNTY AT 520 PM MDT

IF SEVERE WEATHER APPROACHES YOUR AREA...GO INSIDE A STURDY SHELTER
AWAY FROM CREEK BEDS AND OTHER FLOOD-PRONE AREAS. REMEMBER...A SEVERE
THUNDERSTORM CAN PRODUCE LARGE DAMAGING HAIL...DAMAGING WINDS IN
EXCESS OF 55 MPH...DEADLY LIGHTNING...AND VERY HEAVY RAIN.

VERY LARGE HAIL IS POSSIBLE WITH THIS SEVERE THUNDERSTORM. IF YOU ARE
IN THE PATH OF THE STORM...PUT YOUR CAR IN A GARAGE AND MOVE TO A
SUBSTANTIAL SHELTER.

REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY. THEY
WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST
OFFICE IN SALT LAKE CITY.

LAT...LON 3759 11142 3737 11144 3730 11081 3761 11078

NWS Salt Lake City, UT wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 15, 4:16 PM MDT, 53 minutes earlier.

UTAH AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
416 PM MDT WED AUG 15 2001

SYNOPSIS...A WEST TO NORTHWESTERLY FLOW ALOFT WILL PERSIST OVER
UTAH THROUGH FRIDAY. SOME MOISTURE WILL LINGER OVER THE MOUNTAINS
AND EAST THURSDAY.

DISCUSSION...ENOUGH INSTABILITY AND WEAK SUPPORT ALOFT TO KEEP
CONVECTION GOING INTO THIS EVE. BEST FOCUS APPEARS TO BE OVER
THE NERN AND SWRN PORTIONS OF THE FORECAST AREA. THIS SHOULD ALL
START TO DIE OFF AFTER DARK, WITH MAYBE A FEW CELLS LINGERING OVER
THE SOUTH PAST MIDNIGHT. 12Z ETA WANTED TO DRY THE FORECAST AREA
PRETTY STRONGLY WHILE AVN KEPT SOME MOISTURE AROUND. 18Z ETA HAS
COME TOWARDS THE AVN SOLUTION INDICATING SOME ACTIVITY AGAIN
TOMORROW...MAINLY OVER THE SERN 1/2. AVN ALSO WANTS TO KEEP A
LITTLE CONVECTION GOING ON FRI BUT EXPECT ENOUGH DRYING BY THEN TO
PRECLUDE MUCH IF ANY DEVELOPMENT, SO KEPT FRI DRY. THE DRY SWLY
FLOW PERSISTS THRU THE WEEKEND, THEN TURNS MORE WESTERLY AND HEIGHTS
COME BACK UP AS RIDGE BUILDS TO OUR SOUTH. THE 12Z AVN WAS MORE
LIKE THE OLD ECMWF THAN THE 00Z MRF, WITH LESS TROF ALONG THE COAST
AND A STRONGER SW US RIDGE. WITH THIS PATTERN, MOISTURE WILL HOLD
OFF RETURNING TO THE AREA TIL AT LEAST TUE, AND MORE LIKELY WED.
HAVE WORDED EXTENDED ACCORDINGLY.

SLC 2111  CDC 5111  WILENSKY

.SLC...NONE.

Severe Thunderstorm Warnings in Utah, 2001Every severe thunderstorm warning in 2001

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.