Heavy Snow in Utah, March 6 to 8, 2006

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
335 PM MST MON MAR 6 2006

.SYNOPSIS...AN UPPER LOW WILL MOVE SLOWLY THROUGH THE AREA TONIGHT
THROUGH WEDNESDAY MORNING. ANOTHER COLD UPPER TROUGH WILL DEVELOP
OVER INTERIOR WEST THURSDAY...AND REMAIN OVER THE AREA THROUGH THE
WEEKEND.

&&

.DISCUSSION...SOUTHWEST FLOW AHEAD OF THE CA UPPER TROF CONTINUES TO
SLOWLY MOISTEN UP BUT DRY LOWER LEVELS ACROSS THE SOUTH HAVE BEEN
PRECLUDING ANY PRECIP FROM REACHING THE GROUND DOWN THERE. SHOWERS
ARE INCREASING OVER THE NORTH AND THERE HAS BEEN SOME PRECIP FROM
THESE...BUT THEY HAVE ALSO BROUGHT LOCAL STRONG GUSTY WINDS.

THE ASSOCIATED COLD FRONT MOVES INTO NRN UT TONIGHT AND PRECIP
SHOULD FOCUS ALONG THIS FEATURE. THE FRONT LOOSES ITS UPPER SUPPORT
AND STALLS ACROSS S CENTRAL UT BY TUE AFTN. IT THEN MOVES SOUTH
AGAIN TUE NIGHT AND OUT OF THE STATE LATER WED AS A SECOND WAVE
ROTATES THROUGH THE SOUTHERN END OF THE TROF AND PULLS THE WHOLE
SYSTEM OFF TO THE EAST.

WIDESPREAD WARNING AMOUNTS MAY NOT QUITE GET REACHED IN THE
NORTHERN MTNS TONIGHT BUT IT SHOULD BE CLOSE ENOUGH IN A FEW
SPOTS AND WILL LEAVE AS IS. ALTHO IT MAY TAKE MOST OF THE NIGHT
FOR PRECIP TO DEVELOP DOWN SOUTH...WILL EXTEND THE ADVISORY FOR THE
SOUTHERN MTNS THROUGH MID MORNING WED AS THE FOCUS SHIFTS TO
THAT PART OF THE STATE WITH THE SECOND PIECE OF THE TROF.

TEMPS ARE MARGINAL FOR VALLEY SNOW TONIGHT INTO TUE BUT THE SWRN
VALLEYS COULD DO WELL TUE NIGHT INTO WED WITH THE SECOND WAVE.

IT STILL APPEARS THAT A COLD TROF WILL SETTLE INTO THE WEST LATE
THIS WEEK AND LAST INTO NEXT WEEK...WITH THE LEADING COLD FRONT
EXPECTED ON THU. HAVE KEPT CHANCE POPS OVER MOST OF THE AREA WITH
LIKELY IN THE MTNS THRU DAY 7 AND TEMPS WELL BELOW NORMAL.

&&

.AVIATION...SCATTERED VIRGA IN THE AREA THIS AFTERNOON WILL CONTINUE
TO PRODUCE LOCALLY GUSTY SOUTH WINDS OVER 30 KNOTS. CEILINGS ARE
EXPECTED TO LOWER TO 6000 FEET OR BELOW AT SLC IN THE 02-06 UTC TIME
FRAME THIS EVENING. A COLD FRONT IS EXPECTED TO MOVE THROUGH SLC
ABOUT 07 UTC TONIGHT CAUSING WINDS TO SHIFT TO NORTHWEST AND BRING
PERIODIC MVFR CONDITIONS IN RAIN SHOWERS AND MIST BETWEEN 07 AND 10
UTC.

.SLC WATCHES/WARNINGS/ADVISORIES...
UT...HEAVY SNOW WARNING TONIGHT THROUGH TUESDAY MORNING NRN MTNS
     UTZ007>010.
  ...SNOW ADVISORY TONIGHT THRU MID MORNING WED SRN MTNS UTZ017.

WY...NONE.

&&

WILENSKY
BRENCHLEY

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
540 AM MST MON MAR 6 2006

UTZ001>021-WYZ021-071400-
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-
540 AM MST MON MAR 6 2006

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

.DAY ONE... TODAY AND TONIGHT

A MOIST STORM SYSTEM WILL APPROACH UTAH AND SURROUNDING AREAS TODAY
AND MOVE THROUGH THE REGION TONIGHT. SNOW WILL SPREAD NORTH THROUGH
THE MOUNTAIN AREAS...BECOMING OCCASIONALLY HEAVY IN THE AFTERNOON
AND TONIGHT. SOUTH WINDS WILL INCREASE ACROSS THE WESTERN VALLEYS
AND MOUNTAINS.

.DAYS TWO THROUGH SEVEN... TUESDAY THROUGH SUNDAY

UNSETTLED CONDITIONS WILL LINGER TUESDAY AND WEDNESDAY MAINLY FOR
MOUNTAIN AREAS.

A VERY COLD AND MOIST TROUGH WILL ARRIVE OVER THE WESTERN STATES
LATE IN THE WEEK. AN EXTENDED PERIOD OF UNSEASONABLY COOL AND MOIST
WEATHER WILL BEGIN LATE THURSDAY...AND CONTINUE THROUGH THE WEEKEND.