Snow Advisory 1, NWS Salt Lake City, UT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
332 PM MST TUE JAN 10 2006

.SYNOPSIS...A PACIFIC STORM SYSTEM WILL MOVE ACROSS UTAH
WEDNESDAY THEN CLEAR TO THE EAST THURSDAY. THE NEXT STORM IS
EXPECTED TO IMPACT THE AREA OVER THE WEEKEND.

&&

.DISCUSSION...18Z MODEL CYCLE CONTINUED IDEA OF THE 12Z CYCLE WITH
MORE OF A BRUSH-BY SYSTEM...NOT DEEPENING AS IT PASSES UTAH. NOT 100
PERCENT CONVINCED THIS IS THE RIGHT ROUTE TO TAKE BASED ON DARKENING
OF THE TROUGH IN WATER VAPOR DATA AS IT APPROACHES THE COAST.
HOWEVER...UPSTREAM RIDGING OVER THE MID-PACIFIC HAS BEEN SLOW TO
REALLY DEVELOP SO THE MODELS MAY BE ON THE RIGHT TRACK. STRONG WINDS
WILL ACCOMPANY THE SYSTEM LATER TONIGHT AND WEDNESDAY BEFORE DECREASING
AFTER THE FRONT ARRIVES EARLY WEDNESDAY EVENING.

UPGRADING THE WATCHES TO WARNINGS FOR THE MOUNTAIN ZONES AND
ADVISORIES FOR SOUTHWEST WYOMING AND THE MOUNTAIN VALLEYS. ALSO
ADDED THE CACHE VALLEY FOR ADVISORY SNOWFALL. CHANGED ZONE 7
HEAVY SNOW WARNING TO WINTER STORM WARNING TO ADD THE BLOWING SNOW
HAZARD.

SOUTHERN UTAH JUST RECEIVES COOLING AND SCATTERED MOUNTAIN SNOW
WITH THIS SYSTEM AS THE FRONT MOVES THROUGH WEDNESDAY NIGHT. NEXT
SYSTEM ON TRACK TO SPLIT MORE THAN RECENT SYSTEMS ALONG THE WEST
COAST. THAT GIVES SOUTHERN UTAH A BETTER CHANCE AT SIGNIFICANT
PRECIPITATION BUT STILL A MODERATELY STRONG STORM FOR THE NORTH
SATURDAY NIGHT AND SUNDAY. ANOTHER BREAK FOR EARLY NEXT WEEK BUT THEN
ACTIVE PATTERN EXPECTED TO CONTINUE LATER IN THE MONTH.

&&

.AVIATION...SEE LATEST SLCTAFSLC.

&&

.SLC WATCHES/WARNINGS/ADVISORIES...
UT...WINTER STORM WARNING UNTIL 11 AM THURSDAY FOR UTZ007.

     WINTER STORM WARNING FROM MIDNIGHT WEDNESDAY TO 11 AM THURSDAY
     FOR UTZ008-UTZ009.

     SNOW AND BLOWING SNOW ADVISORY FROM MIDNIGHT WEDNESDAY TO 11 AM
     THURSDAY FOR UTZ006.

     SNOW ADVISORY FROM 11 PM TUESDAY TO 11 AM THURSDAY FOR UTZ001.

WY...SNOW AND BLOWING SNOW ADVISORY FROM MIDNIGHT WEDNESDAY TO 11 AM
     THURSDAY FOR WYZ021.

&&

GIBSON

HAZARDOUS WEATHER OUTLOOK...CORRECTED
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
945 AM MST TUE JAN 10 2006

UTZ001>009-WYZ021-111400-
CACHE VALLEY/UTAH PORTION-GREAT SALT LAKE DESERT AND MOUNTAINS-
NORTHERN WASATCH FRONT-SALT LAKE AND TOOELE VALLEYS-SOUTHERN WASATCH
FRONT-SOUTHWEST WYOMING-WASATCH MOUNTAIN VALLEYS-WASATCH MOUNTAINS I-
80 NORTH-WASATCH MOUNTAINS SOUTH OF I-80-WESTERN UINTA MOUNTAINS-
945 AM MST TUE JAN 10 2006

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHERN THIRD OF UTAH AND
EXTREME SOUTHWEST WYOMING.

.DAY ONE... TODAY

SNOW WILL SPREAD INTO THE FAR NORTHERN MOUNTAINS OF UTAH LATE
TODAY. THE ONSET OF THIS SNOW WILL SIGNAL THE BEGINNING OF A HEAVY
SNOW EVENT FOR THE NORTHERN MOUNTAINS. SEE THE LATEST WINTER
WEATHER STATEMENT (SLCWSWSLC) FOR DETAILS ON THIS APPROACHING STORM.

.DAYS TWO THROUGH SEVEN... WEDNESDAY THROUGH MONDAY

AN ENERGETIC PACIFIC STORM SYSTEM WILL REMAIN OVER NORTHERN UTAH
THROUGH THURSDAY. THIS STORM WILL BRING HEAVY SNOW TO THE MOUNTAINS
WITH SOME OF THE HIGHER VALLEYS ALSO PICKING UP SIGNIFICANT
ACCUMULATIONS. SEE THE LATEST WINTER WEATHER STATEMENT (SLCWSWSLC)
FOR DETAILS.

A SECOND PACIFIC STORM SYSTEM WILL MOVE IN LATE SUNDAY. THIS STORM
DOES NOT APPEAR TO AS POTENT...AND WILL LIKELY NOT PRODUCE HEAVY
MOUNTAIN SNOWFALL.

.SPOTTER INFORMATION STATEMENT

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

UTZ010>021-111400-
CASTLE COUNTRY-CENTRAL AND SOUTHWEST MOUNTAINS-GLEN CANYON RECREATION
AREA/LAKE POWELL-HENRY MOUNTAINS-SAN RAFAEL SWELL-SANPETE/SEVIER
VALLEYS-SOUTH CENTRAL UTAH-SOUTHWEST UTAH-UTAHS DIXIE AND ZION
NATIONAL PARK-WASATCH PLATEAU/BOOK CLIFFS-WEST CENTRAL UTAH-WESTERN
UINTA BASIN-
945 AM MST TUE JAN 10 2006

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL AND SOUTHERN UTAH.

.DAY ONE... TODAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN... WEDNESDAY THROUGH MONDAY

PRECIPITATION WILL SPREAD SOUTH INTO THE CENTRAL UTAH MOUNTAINS
WEDNESDAY...THEN ACROSS ALL BUT EXTREME SOUTHERN UTAH LATE
WEDNESDAY THROUGH EARLY THURSDAY. SIGNIFICANT SNOWFALLS ARE POSSIBLE
IN THE CENTRAL MOUNTAINS FROM THIS STORM.

A SECOND PACIFIC STORM WILL AFFECT EXTREME SOUTHERN UTAH LATE
SUNDAY THROUGH MONDAY.  HEAVY SNOW IS NOT EXPECTED AT THIS TIME.