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Winter Storm Watch

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
359 PM MST FRI DEC 19 2014

...HEAVY SNOW POSSIBLE FOR THE NORTHERN MOUNTAINS FOR THE LATTER
HALF OF THE UPCOMING WEEKEND...

.A VERY MOIST NORTHWEST FLOW WILL SET UP ACROSS THE NORTHERN
GREAT BASIN DURING THE LATTER HALF OF THE UPCOMING WEEKEND. SNOW
WILL BEGIN ACROSS THE NORTHERN WASATCH RANGE LATE SATURDAY
NIGHT...THEN SPREAD SOUTH AND EAST ACROSS THE REMAINDER OF THE
NORTHERN MOUNTAINS BY EARLY SUNDAY. THIS STORM WILL PRODUCE
PERIODS OF HEAVY SNOW AND STRONG RIDGELINE WINDS THROUGH EARLY
MONDAY. SNOW WILL GRADUALLY DIMINISH MONDAY AFTERNOON...THEN END
MOST AREAS MONDAY EVENING.

UTZ007>010-201230-
/O.CON.KSLC.WS.A.0005.141221T0900Z-141223T0100Z/
WASATCH MOUNTAINS I-80 NORTH-WASATCH MOUNTAINS SOUTH OF I-80-
WESTERN UINTA MOUNTAINS-WASATCH PLATEAU/BOOK CLIFFS-
INCLUDING THE CITIES OF...WOODRUFF...RANDOLPH...ALTA...BRIGHTON...
MIRROR LAKE HIGHWAY...SCOFIELD
359 PM MST FRI DEC 19 2014

...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE SATURDAY NIGHT
THROUGH MONDAY AFTERNOON...

* AFFECTED AREA...THE WASATCH AND WESTERN UINTA MOUNTAIN RANGES
  AND THE WASATCH PLATEAU AND BOOK CLIFFS.

* SNOW ACCUMULATIONS...ACCUMULATIONS OF 10 TO 20 INCHES...WITH
  LOCALLY GREATER AMOUNTS ACROSS THE WASATCH RANGE.

* TIMING...SNOW WILL REACH THE NORTHERN WASATCH MOUNTAINS LATE
  SATURDAY NIGHT...THEN SPREAD SOUTH AND EAST ACROSS THE
  REMAINDER OF THE NORTHERN MOUNTAINS BY EARLY SUNDAY. SNOW WILL
  CONTINUE HEAVY AT TIMES THROUGH EARLY MONDAY...THEN GRADUALLY
  DECREASE IN INTENSITY AND AREAL COVERAGE MONDAY AFTERNOON.

* SNOW LEVELS...SNOW LEVELS AT THE BEGINNING OF THE STORM WILL
  BE NEAR 6000 FEET. SNOW LEVELS WILL RISE TO NEAR 7000 FEET
  DURING THE DAY SUNDAY.

* WINDS...STRONG NORTHWEST WINDS WILL DEVELOP ALONG RIDGELINES
  AND ACROSS EXPOSED AREAS BY LATE SUNDAY MORNING. WINDS OF 25
  TO 35 MPH WITH GUSTS IN EXCESS OF 50 MPH ARE EXPECTED.

* IMPACTS...HEAVY SNOW ALONG WITH THE POTENTIAL FOR SIGNIFICANT
  BLOWING AND DRIFTING OF SNOW WILL MAKE FOR HAZARDOUS TRAVEL
  CONDITIONS THROUGHOUT THIS STORM.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT
SNOW...SLEET...OR ICE ACCUMULATIONS THAT MAY IMPACT TRAVEL.
CONTINUE TO MONITOR THE LATEST FORECASTS.

&&

$$

FOR MORE INFORMATION FROM NOAA/NATIONAL WEATHER SERVICE VISIT...
HTTP://WEATHER.GOV/SALTLAKECITY (ALL LOWER CASE)

FOR INFORMATION ON POTENTIAL TRAVEL IMPACTS VISIT...
HTTP://UDOTTRAFFIC.UTAH.GOV/ROADWEATHERFORECAST.ASPX




Hazardous Weather Outlook

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
549 AM MST FRI DEC 19 2014

UTZ001>016-019>021-517-518-WYZ021-201300-
CACHE VALLEY/UTAH PORTION-NORTHERN WASATCH FRONT-
SALT LAKE AND TOOELE VALLEYS-SOUTHERN WASATCH FRONT-
GREAT SALT LAKE DESERT AND MOUNTAINS-WASATCH MOUNTAIN VALLEYS-
WASATCH MOUNTAINS I-80 NORTH-WASATCH MOUNTAINS SOUTH OF I-80-
WESTERN UINTA MOUNTAINS-WASATCH PLATEAU/BOOK CLIFFS-
WESTERN UINTA BASIN-CASTLE COUNTRY-SAN RAFAEL SWELL-
SANPETE/SEVIER VALLEYS-WEST CENTRAL UTAH-SOUTHWEST UTAH-
UTAHS DIXIE AND ZION NATIONAL PARK-SOUTH CENTRAL UTAH-
GLEN CANYON RECREATION AREA/LAKE POWELL-CENTRAL MOUNTAINS-
SOUTHERN MOUNTAINS-SOUTHWEST WYOMING-
549 AM MST FRI DEC 19 2014

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

.DAY ONE...TODAY AND TONIGHT

A MOIST WESTERLY FLOW ALOFT WILL BRING LIGHT RAIN AND SNOW BACK
INTO NORTHWEST UTAH BY LATE THIS AFTERNOON. THIS PRECIPITATION
WILL SPREAD EAST ACROSS MUCH OF NORTHERN UTAH AND SOUTHWEST
WYOMING TONIGHT. VALLEY LOCATIONS WILL SEE A MIX OF RAIN AND
SNOW...WITH A COUPLE OF INCHES OF ACCUMULATION IN THE NORTHERN
MOUNTAINS

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

AN EXTENDED PERIOD OF VALLEY RAIN AND MOUNTAIN SNOW WILL DEVELOP
ACROSS NORTHERN UTAH AND SOUTHWEST WYOMING BEGINNING LATE
SATURDAY NIGHT AND CONTINUING THROUGH THE DAY MONDAY. LOWER SNOW
LEVELS SATURDAY NIGHT WILL LEAD TO A MIX OF RAIN AND SNOW IN THE
VALLEYS...WITH SNOW FOR THE HIGHER ELEVATIONS. RISING SNOW LEVELS
SUNDAY WILL TURN MOST PRECIPITATION TO RAIN IN THE VALLEYS WITH
PERIODS OF HEAVY SNOW FOR THE MOUNTAINS AND HIGHER MOUNTAIN
VALLEYS. STRONG WINDS WILL ALSO EXIST ACROSS THE HIGHER TERRAIN
SUNDAY THROUGH MONDAY. A WINTER STORM WATCH IS IN EFFECT FOR ALL
OF THE NORTHERN UTAH MOUNTAINS BEGINNING LATE SATURDAY NIGHT AND
CONTINUING THROUGH THE DAY MONDAY.

HIGH PRESSURE ALOFT EXPANDING EAST FROM THE EASTERN PACIFIC WILL
BEGIN DRY AND MILD CONDITIONS TO THE ENTIRE OUTLOOK AREA TUESDAY
AND THROUGH MUCH OF THE DAY WEDNESDAY. BY WEDNESDAY NIGHT
PRECIPITATION WILL RETURN TO WESTERN UTAH AS THE NEXT AND
POTENTIALLY STRONG STORM SYSTEM ENTERS THE WESTERN GREAT BASIN.
THIS STORM WILL MOVE EAST INTO THE OUTLOOK AREA THURSDAY...
BRINGING THE POSSIBILITY OF WIDESPREAD SNOW AND COLDER
TEMPERATURES FOR CHRISTMAS DAY.

.SPOTTER INFORMATION STATEMENT...

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

$$

FOR MORE INFORMATION FROM NOAA/S NATIONAL WEATHER SERVICE VISIT...
HTTP://WEATHER.GOV/SALTLAKECITY/ (ALL LOWER CASE)

FOR INFORMATION ON POTENTIAL ROAD TRAVEL IMPACTS VISIT...
HTTP://WWW.UDOTTRAFFIC.UTAH.GOV/ROADWEATHERFORECAST.ASPX



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