Damaging Wind in Utah, July 29, 2005

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
1040 AM MDT FRI JUL 29 2005

.SYNOPSIS...HIGH PRESSURE OVER THE FOUR CORNERS REGION WILL ALLOW
FOR SOUTHWESTERLY FLOW ACROSS MUCH OF UTAH INTO NEXT WEEK. MOISTURE
WITHIN THIS FLOW WILL PREVAIL THROUGH THE WEEKEND.

&&

.DISCUSSION...MAIN STORY FOR TODAY IS THE MOISTURE SHIFTING EASTWARD
INTO OUR CWA. PRECIPITABLE WATER HAS BEEN ON THE RISE WITH GOES DATA
SHOWING AN INCH OR MORE THIS MORNING OVER THE GSL AREA...THE WEST
DESERTS AND THE SW CORNER OF UT. SURFACE DEWPOINTS ALSO HAVE
INCREASED OVER THE PAST 24 HRS...MORE 10 DEGREES AT SEVERAL SITES
OVER WESTERN UT. VORT MAX MOVING ACROSS SOUTHERN IDAHO AND EXTREME
NORTHWEST UT HAS PRODUCED EXTENSIVE CLOUD COVER ALONG WITH A FEW
THUNDERSTORMS ACROSS THAT AREA THIS MORNING.

THIS INCREASINGLY MOIST AND UNSTABLE AIRMASS WILL RESULT IN AN
ACTIVE DAY OF CONVECTION ACROSS MOST OF THE AREA. GIVEN THE HIGH
PW...A FEW OF THE THUNDERSTORMS THAT DEVELOP TODAY COULD BE HEAVY
RAIN PRODUCERS...ESPECIALLY OVER THE SOUTH WHERE THE FLOW IS LIGHT.
CURRENT PACKAGE HAS HIGHEST POPS OVER THE WESTERN AND CENTRAL
PORTIONS...DECREASING OVER THE EXTREME EAST. THIS LOOKS REASONABLE
GIVEN THE POSITION OF THE MOISTURE AXIS.

THE HIGH PRESSURE CENTER STAYS OVER SOUTH CENTRAL CO THROUGH THE
EARLY PART OF NEXT WEEK. THIS WILL KEEP A SOUTHERLY TO SOUTHWESTERLY
FLOW OVER OUR AREA...KEEPING THE MOISTURE IN PLACE. SO NOT MUCH
CHANGE EXPECTED THE NEXT FEW DAYS. AN UPPER TROUGH MOVING ACROSS THE
REGION WILL TURN THE FLOW WESTERLY TO NORTHWESTERLY LATE NEXT WEEK
PUSHING DRIER AIR INTO THE AREA.

&&

.FIRE WEATHER...INCREASED THUNDERSTORM ACTIVITY WILL BE A CONCERN
FOR THE FIRE DISTRICT TODAY. ALTHOUGH ISOLATED DRY THUNDERSTORMS ARE
POSSIBLE...ESPECIALLY OVER THE EASTERN PORTIONS...THE MAJORITY OF
THE STORMS ARE EXPECTED TO HAVE WETTING RAINS.

&&

.AVIATION...NONE. SEE SLCTAFSLC.

&&

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

CHENG

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
600 AM MDT FRI JUL 29 2005

UTZ001>021-WYZ021-301300-
CACHE VALLEY/UTAH PORTION-CASTLE COUNTRY-
CENTRAL AND SOUTHWEST MOUNTAINS-
GLEN CANYON RECREATION AREA/LAKE POWELL-
GREAT SALT LAKE DESERT AND MOUNTAINS-HENRY MOUNTAINS-
NORTHERN WASATCH FRONT-SALT LAKE AND TOOELE VALLEYS-SAN RAFAEL SWELL-
SANPETE/SEVIER VALLEYS-SOUTH CENTRAL UTAH-SOUTHERN WASATCH FRONT-
SOUTHWEST UTAH-SOUTHWEST WYOMING-UTAHS DIXIE AND ZION NATIONAL PARK-
WASATCH MOUNTAIN VALLEYS-WASATCH MOUNTAINS I-80 NORTH-
WASATCH MOUNTAINS SOUTH OF I-80-WASATCH PLATEAU/BOOK CLIFFS-
WEST CENTRAL UTAH-WESTERN UINTA BASIN-WESTERN UINTA MOUNTAINS-
600 AM MDT FRI JUL 29 2005

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE WESTERN TWO THIRDS OF UTAH
AND EXTREME SOUTHWEST WYOMING.

.DAY ONE...TODAY

SCATTERED THUNDERSTORMS ARE EXPECTED TODAY OVER MUCH OF THE REGION.
THUNDERSTORMS WILL INCREASE IN COVERAGE THIS AFTERNOON AND INTO THIS
EVENING. THUNDERSTORMS WILL PRODUCE LOCALLY HEAVY RAIN IN WESTERN
AND SOUTHERN UTAH WITH ISOLATED DRY LIGHTNING ACROSS THE REGION.

.DAYS TWO THROUGH SEVEN... SATURDAY THROUGH THURSDAY

SCATTERED THUNDERSTORMS ARE EXPECTED THROUGH THE REMAINDER OF THE
FORECAST PERIOD. SOME OF THESE STORMS WILL CONTAIN HEAVY RAIN AND
FREQUENT CLOUD TO GROUND LIGHTNING.

SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.