Heavy Snow Warning 3, NWS Salt Lake City, UT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
940 PM MST SUN DEC 25 2005

.SYNOPSIS...A MOIST PACIFIC STORM CURRENTLY MOVING ONTO THE NORTHERN
CALIFORNIA COAST WILL IMPACT UTAH MONDAY THROUGH TUESDAY MORNING.
THIS STORM SYSTEM WILL BRING POTENTIALLY HEAVY SNOW TO UTAH
MOUNTAINS WITH RAIN ANTICIPATED PRIMARILY IN UTAHS WESTERN VALLEYS.
ANOTHER STORM WILL AFFECT THE AREA THURSDAY.

&&

.DISCUSSION...MOIST PACIFIC STORM SYSTEM MOVING ONTO THE CALIFORNIA
COAST TONIGHT.  SEVERAL BUOYS GUSTING TO 40+ KNOTS THIS EVENING AS
PRIMARY PRECIPITATION SHIELD IS MOVING ONTO THE COAST OF NRN CA AND
SRN OREGON.  AHEAD OF THIS WAVE MID AND HIGH CLOUDS WILL INCREASE
TONIGHT ON SOUTHWEST FLOW. PRECIPITATION WILL INITIALLY DEVELOP OVER
THE HIGH TERRAIN ON MONDAY AS UPPER TROUGH AXIS APPROACHES UTAH FROM
THE WEST. PRECIPITATION WILL BE SLOWER TO DEVELOP IN VALLEYS WITH
SUBSTANTIAL DRY WEDGE IN LOW LEVELS TO OVERCOME. MID LEVEL
BAROCLINIC ZONE IS PROGGED TO WEAKEN AS THE SYSTEM MOVES EAST
THROUGH THE GREAT BASIN AND BEGINS TO SPLIT.  ALTHOUGH SYSTEM
APPEARS TO LACK IMPRESSIVE MID LAPSE RATES TO MAXIMIZE RESPONSE TO
THE FORCING IN PLACE THE SYSTEM IS RICH WITH MOISTURE AS A RESULT OF
PREVIOUS TAP TO SUB-TROPICS. WATCHES IN PLACE LOOK GOOD AT THIS TIME
AND WILL LEAVE AS IS.

TEMPERATURES DROPPED OFF QUICKLY THIS EVENING ALONG THE WASATCH
FRONT...CACHE VALLEY AND IN SOME OF THE EASTERN BASINS AND HAVE
LOWERED MIN TEMPERATURES A BIT IN THESE AREAS.  OTHERWISE...NO
CHANGES TO GOING FORECAST.

&&

.AVIATION...SEE LATEST SLCTAFSLC.

&&

.SLC WATCHES/WARNINGS/ADVISORIES...
UT...WINTER STORM WATCH FROM NOON MONDAY TO NOON TUESDAY FOR UTZ006-
     UTZ007-UTZ008-UTZ009-UTZ010-UTZ017-UTZ018.

WY...NONE.
&&

GRAHAM

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
1003 AM MST SUN DEC 25 2005

UTZ001>021-WYZ021-261300-
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-
1003 AM MST SUN DEC 25 2005

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

.DAY ONE... TODAY AND TONIGHT

TEMPERATURES WILL REMAIN WELL ABOVE NORMAL FOR CHRISTMAS DAY AND
CHRISTMAS NIGHT. CLOUDS WILL INCREASE ACROSS UTAH AND SOUTHWEST
WYOMING AS A WEAK STORM SYSTEM MOVES ONSHORE OVER CALIFORNIA.

.DAYS TWO THROUGH SEVEN... MONDAY THROUGH SATURDAY

A STORM SYSTEM WILL AFFECT THE AREA MONDAY NIGHT THROUGH EARLY
TUESDAY. THIS STORM WILL BRING WIDESPREAD PRECIPITATION TO THE
AREA...WITH HEAVY SNOWFALL OVER THE WESTERN TWO THIRDS OF UTAH. A
WINTER STORM WATCH HAS BEEN ISSUED FOR THE MOUNTAINS AND WASATCH
MOUNTAIN VALLEYS. SEE SLCWSWSLC FOR ADDITIONAL DETAILS.

ANOTHER STORM WILL AFFECT THE NORTHERN HALF OF THE STATE ON
THURSDAY. THIS STORM COULD GENERATE SIGNIFICANT PRECIPITATION FOR
THE NORTH...WITH HEAVY SNOW A POSSIBILITY IN THE FAR NORTHERN
MOUNTAINS.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS ARE ENCOURAGE TO REPORT SIGNIFICANT WEATHER ACCORDING TO
STANDARD OPERATING PROCEDURES.