Snow Advisory 13, NWS Salt Lake City, UT

000 
WWUS45 KSLC 141620
WSWSLC

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
920 AM MST THU FEB 14 2008

...SNOW AND WIND TODAY...

.AN UPPER LOW WILL KEEP A COLD MOIST AIRMASS OVER MOST OF THE
AREA TODAY AS IT MOVES SLOWLY SOUTH ACROSS SOUTHWESTERN UTAH.

UTZ003-004-142300-
/O.CAN.KSLC.WS.W.0009.000000T0000Z-080214T1800Z/
/O.NEW.KSLC.BS.Y.0001.080214T1620Z-080214T2300Z/
SALT LAKE AND TOOELE VALLEYS-SOUTHERN WASATCH FRONT-
920 AM MST THU FEB 14 2008

...BLOWING SNOW ADVISORY IN EFFECT UNTIL 4 PM MST THIS
AFTERNOON...
...WINTER STORM WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN SALT LAKE CITY HAS ISSUED A
BLOWING SNOW ADVISORY...WHICH IS IN EFFECT UNTIL 4 PM MST THIS
AFTERNOON. THE WINTER STORM WARNING HAS BEEN CANCELLED. 

THIS BLOWING SNOW ADVISORY IS FOR THE CENTRAL AND SOUTHERN
WASATCH FRONT INCLUDING SALT LAKE AND PROVO...AND THE TOOELE
VALLEY.

STRONG EASTERLY WIND GUSTS TO 50 MPH WILL CAUSE SEVERE BLOWING AND
DRIFTING ALONG THE EAST BENCHES...ESPECIALLY AT THE MOUTHS OF
CANYONS. ACROSS OPEN AREAS OF WESTERN SALT LAKE AND UTAH VALLEYS
AND IN TOOELE AND RUSH VALLEYS NORTHERLY WINDS OF 15 TO 25 MPH
WITH HIGHER GUSTS WILL ALSO CAUSE CONSIDERABLE BLOWING AND
DRIFTING.

SNOW SHOWERS WILL TAPER OFF AROUND MIDDAY WITH LESS THAN AN
ADDITIONAL INCH EXPECTED.

A BLOWING SNOW ADVISORY MEANS THAT VISIBILITIES WILL BE LIMITED
DUE TO STRONG WINDS BLOWING SNOW AROUND. USE CAUTION WHEN
TRAVELING...ESPECIALLY IN OPEN AREAS.

$$

UTZ005-142300-
/O.CAN.KSLC.SB.Y.0011.000000T0000Z-080214T1800Z/
/O.NEW.KSLC.BS.Y.0001.080214T1620Z-080214T2300Z/
GREAT SALT LAKE DESERT AND MOUNTAINS-
920 AM MST THU FEB 14 2008

...BLOWING SNOW ADVISORY IN EFFECT UNTIL 4 PM MST THIS
AFTERNOON...
...SNOW AND BLOWING SNOW ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN SALT LAKE CITY HAS ISSUED A
BLOWING SNOW ADVISORY...WHICH IS IN EFFECT UNTIL 4 PM MST THIS
AFTERNOON. THE SNOW AND BLOWING SNOW ADVISORY HAS BEEN CANCELLED.

NORTHERLY WINDS OF 20 TO 30 MPH WILL CONTINUE WELL INTO THIS
AFTERNOON WITH CONSIDERABLE BLOWING AND DRIFTING. CAUTION SHOULD
BE EXERCISED WHILE TRAVELING DUE TO RESTRICTED VISIBILITIES AND
ROADWAYS PERIODICALLY SNOW COVERED.

ADDITIONAL SNOWFALL OF LESS THAN 1 INCH IS EXPECTED. 

A BLOWING SNOW ADVISORY MEANS THAT VISIBILITIES WILL BE LIMITED
DUE TO STRONG WINDS BLOWING SNOW AROUND. USE CAUTION WHEN
TRAVELING...ESPECIALLY IN OPEN AREAS ALONG I-80.

$$

UTZ002-142300-
/O.CAN.KSLC.SN.Y.0013.000000T0000Z-080214T1800Z/
/O.NEW.KSLC.BS.Y.0001.080214T1620Z-080214T2300Z/
NORTHERN WASATCH FRONT-
920 AM MST THU FEB 14 2008

...BLOWING SNOW ADVISORY IN EFFECT UNTIL 4 PM MST THIS
AFTERNOON...
...SNOW ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN SALT LAKE CITY HAS ISSUED A
BLOWING SNOW ADVISORY...WHICH IS IN EFFECT UNTIL 4 PM MST THIS
AFTERNOON. THE SNOW ADVISORY HAS BEEN CANCELLED. 

STRONG EASTERLY WIND GUSTS TO 50 MPH WILL CAUSE SEVERE BLOWING
AND DRIFTING ALONG THE EAST BENCHES...ESPECIALLY AT THE MOUTHS OF
CANYONS. ACROSS OPEN AREAS OF WESTERN DAVIS AND WEBER COUNTIES
NORTHEAST WINDS OF 15 TO 25 MPH WITH HIGHER GUSTS WILL ALSO CAUSE
CONSIDERABLE BLOWING AND DRIFTING.

A BLOWING SNOW ADVISORY MEANS THAT VISIBILITIES WILL BE LIMITED
DUE TO STRONG WINDS BLOWING SNOW AROUND. USE CAUTION WHEN
TRAVELING...ESPECIALLY IN OPEN AREAS.

$$

UTZ008-012-141730-
/O.CAN.KSLC.SB.Y.0011.000000T0000Z-080214T1800Z/
WASATCH MOUNTAINS SOUTH OF I-80-CASTLE COUNTRY-
920 AM MST THU FEB 14 2008

...SNOW AND BLOWING SNOW ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN SALT LAKE CITY HAS CANCELLED THE
SNOW AND BLOWING SNOW ADVISORY FOR THE WASATCH MOUNTAINS SOUTH OF I-80.


$$

UTZ006-007-141730-
/O.CAN.KSLC.SN.Y.0013.000000T0000Z-080214T1800Z/
WASATCH MOUNTAIN VALLEYS-WASATCH MOUNTAINS I-80 NORTH-
920 AM MST THU FEB 14 2008

...SNOW ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN SALT LAKE CITY HAS CANCELLED THE
SNOW ADVISORY FOR THE WASATCH MOUNTAIN VALLEYS AND THE WASATCH
MOUNTAINS NORTH OF I-80.

$$

UTZ014>016-517-518-142300-
/O.CON.KSLC.WS.W.0009.000000T0000Z-080214T2300Z/
SANPETE/SEVIER VALLEYS-WEST CENTRAL UTAH-SOUTHWEST UTAH-
CENTRAL MOUNTAINS-SOUTHERN MOUNTAINS-
920 AM MST THU FEB 14 2008

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 PM MST THIS
AFTERNOON...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 PM MST THIS
AFTERNOON. 

THIS WARNING IS FOR THE SANPETE AND SEVIER VALLEYS...THE WEST
CENTRAL AND SOUTHWEST VALLEYS...AND THE CENTRAL AND SOUTHERN
MOUNTAINS.

ADDITIONAL SNOWFALL OF 1 TO 2 INCHES IS EXPECTED IN THE VALLEYS
WITH LOCALLY 4 INCHES ALONG AND EAST OF I-15. ADDITIONAL SNOWFALL
OF 4 TO 8 INCHES IS EXPECTED IN THE MOUNTAINS.

THIS SNOW WILL IMPACT THE MAJOR HIGHWAYS THROUGH CENTRAL AND
SOUTHWESTERN UTAH SUCH AS I-15...ROUTE 89 AND ROUTE 6.

SNOW WILL CONTINUE THROUGH THIS AFTERNOON THEN GRADUALLY TAPER
OFF LATE TODAY.

$$

UTZ011-142300-
/O.EXT.KSLC.SB.Y.0011.000000T0000Z-080214T2300Z/
WESTERN UINTA BASIN-
920 AM MST THU FEB 14 2008

...SNOW AND BLOWING SNOW ADVISORY NOW IN EFFECT UNTIL 4 PM MST
THIS AFTERNOON...

THE SNOW AND BLOWING SNOW ADVISORY IS NOW IN EFFECT UNTIL 4 PM
MST THIS AFTERNOON. 

THIS ADVISORY IS FOR THE WESTERN UINTA BASIN.

ADDITIONAL SNOWFALL OF 1 TO 3 INCHES IS EXPECTED WITH LOCALLY
HIGHER AMOUNTS POSSIBLE...MAINLY IN THE WESTERN UINTA BASIN.
BREEZY EAST WINDS AT 15 TO 25 MPH WITH GUSTS OVER 35 MPH WILL
CONTINUE TO CAUSE CONSIDERABLE BLOWING AND DRIFTING OF THE SNOW.

A SNOW AND BLOWING SNOW ADVISORY MEANS THAT VISIBILITIES WILL BE
LIMITED DUE TO A COMBINATION OF FALLING AND BLOWING SNOW. USE
CAUTION WHEN TRAVELING...ESPECIALLY IN OPEN AREAS.

$$

UTZ009-010-WYZ021-142300-
/O.EXT.KSLC.SB.Y.0011.000000T0000Z-080214T2300Z/
WESTERN UINTA MOUNTAINS-WASATCH PLATEAU/BOOK CLIFFS-
SOUTHWEST WYOMING-
920 AM MST THU FEB 14 2008

...SNOW AND BLOWING SNOW ADVISORY NOW IN EFFECT UNTIL 4 PM MST
THIS AFTERNOON...

THE SNOW AND BLOWING SNOW ADVISORY IS NOW IN EFFECT UNTIL 4 PM
MST THIS AFTERNOON. 

THIS ADVISORY IS FOR THE WASATCH PLATEAU AND THE BOOK CLIFFS.

ADDITIONAL SNOWFALL OF 2 TO 6 INCHES IS EXPECTED IN THE MOUNTAINS
WITH 1 TO 3 INCHES IN SOUTHWEST WYOMING. LOCALLY STRONG WINDS OF
25 TO 35 MPH WILL CAUSE AREAS OF SEVERE BLOWING AND DRIFTING SNOW.

A SNOW AND BLOWING SNOW ADVISORY MEANS THAT VISIBILITIES WILL BE
LIMITED DUE TO A COMBINATION OF FALLING AND BLOWING SNOW. USE
CAUTION WHEN TRAVELING...ESPECIALLY IN OPEN AREAS ALONG I-80.

$$

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

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
850 PM MST WED FEB 13 2008

.SYNOPSIS...AN UPPER LOW WILL DEVELOP OVER SOUTHEAST UTAH TONIGHT
AND THEN MOVE SLOWLY SOUTHEAST OF THE AREA BY THURSAY NIGHT AS A
RIDGE OF HIGH PRESSURE DEVELOPS OVER THE AREA FOR THE WEEKEND.

&&

.DISCUSSION...UPPER TROUGH AXIS ELONGATED ALONG THE UT/NV BORDER NOW
AS UPPER LOW IN THE PROCESS OF DEVELOPING OVER SE UT LATER
TONIGHT. INTENSE PRESSURE GRADIENT AND STRONG ISALLOBARIC
RISE/FALL COUPLET RESPONSIBLE FOR THE STRONG SURFACE WINDS BEHIND
TODAYS COLD FRONT WITH SOME DOWNSLOPE TERRAIN ENHANCEMENT IN AREAS
LIKE NORTHERN UTAH COUNTY. COMBO OF STRONG WINDS AND SNOW HAVE
MADE FOR DIFFICULT CONDITIONS IN N. UTAH COUNTY. EXPECT SNOW TO
DIMINISH ALONG THE WASATCH FRONT OVER THE NEXT FEW HOURS AS UPPER
LOW DROPS SOUTH AND EASTERLY FLOW ALOFT DEVELOPS AND GENERATES
DOWNSLOPE IN THE LEE OF THE WASATCH. HOWEVER SNOW LIKELY TO
CONTINUE OVER THE TOOELE VALLEY AND PORTIONS OF THE NW DESERTS
THROUGH THE NIGHT. ALSO EXPECT SURFACE WINDS IN UT COUNTY TO
CONTINUE AT LEAST 3 MORE HOURS. WILL EXTEND WS WARNING FOR ZONE 4
DUE CONTINUED BLOWING SNOW PROBLEMS IN UT COUNTY AND EXTEND SNOW
AND BLOWING SNOW ADVISORY FOR ZONE 5 AS WELL. WILL EXTEND WS
WARNING FOR ZONE 3...BUT ALTER WORDING TO INDICATE SIGNIFICANT
ADDITIONAL ACCUMULATION WILL MAINLY BE IN THE TOOELE VALLEY WITH
LITTLE ADDITIONAL IN SL COUNTY.

SFC PRESSURE GRADIENT NOT GREAT FOR WASATCH FRONT CANYON WIND
THURSDAY MORNING...BUT 50 KNOT PLUS EASTERLY WINDS AT 700 MB
SUGGEST THERE COULD BE LOCALIZED AREAS AND THESE WINDS COULD
COMBINE TO PRODUCE SOME BLOWING AND DRIFTING THURSDAY MORNING IN
DAVIS/WEBER COUNTIES.

OTHER WARNINGS IN THE NORTH WILL BE ALLOWED TO EXPIRE AT 10 PM.

NO CHANGES TO FORECAST OVER THE SOUTHWEST WHERE FULL SCALE WINTER
STORM NOW IN PROGRESS AND SHOULD CONTINUE THROUGH THE NIGHT.

&&

.AVIATION...VISIBILITY AT KSLC LIKELY TO REMAIN WITHIN IFR RANGE IN
LIGHT SNOW THROUGH 06Z BEFORE GRADUALLY IMPROVING. CEILINGS WILL
ALSO RANGE FROM LOW-END MVFR TO HIGH END IFR DURING THIS TIME. A 20
PERCENT CHANCE OF LIFR CONDITIONS EXISTS THROUGH 06Z. EXPECT
CONDITIONS TO BEGIN IMPROVING OVERNIGHT...WITH ONLY A 30 PERCENT
CHANCE OF IFR VIS/CIGS AFTER 08Z.

&&

.SLC WATCHES/WARNINGS/ADVISORIES...
UT...WINTER STORM WARNING UNTIL 5AM THURSDAY FOR UTZ003-UTZ004-

     WINTER STORM WARNING UNTIL 9 AM THURSDAY FOR UTZ014-UTZ015-
     UTZ016-UTZ517-UTZ518.

     SNOW AND BLOWING SNOW ADVISORY UNTIL 5 AM THURSDAY FOR UTZ011-
     UTZ012.

 SNOW AND BLOWING SNOW ADVISORY UNTIL 5 AM THURSDAY FOR UTZ005-
UTZ009-UTZ010.

     WIND ADVISORY UNTIL 5 PM THURSDAY FOR UTZ019.

&&

PUBLIC...DUNN
AVIATION...SEAMAN

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

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
538 AM MST WED FEB 13 2008

UTZ001>016-019>021-517-518-WYZ021-141200-
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-
538 AM MST WED FEB 13 2008

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

.DAY ONE...TODAY AND TONIGHT

A STRONG COLD FRONT WILL BRING A PERIOD OF HEAVY SNOW AND STRONG
WINDS TO MUCH OF NORTHERN AND CENTRAL UTAH TODAY SHIFTING INTO
SOUTHERN UTAH THIS EVENING. SIGNIFICANT SNOW ACCUMULATION WILL
SERIOUSLY IMPACT TRAVEL ALONG THE ENTIRE I-15 CORRIDOR FROM THE
IDAHO BORDER TO SOUTH OF CEDAR CITY. SEE THE LATEST WINTER WEATHER
STATEMENT FOR DETAILS.

STRONG CANYON WINDS WILL CONTINUE IN PORTIONS OF WASHINGTON COUNTY
TONIGHT.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

SNOW WILL PERSIST THURSDAY ACROSS PORTIONS OF CENTRAL AND SOUTHERN
UTAH AND COULD CONTINUE TO IMPACT TRAVEL. STRONG CANYON WINDS
WILL ALSO CONTINUE IN WASHINGTON COUNTY INTO THE AFTERNOON.

HIGH PRESSURE WILL RETURN TO THE OUTLOOK AREA FRIDAY AND REMAIN
THROUGH THE EARLY PART OF NEXT WEEK. THIS WILL BRING DRY WEATHER
WITH A GRADUAL WARMING TREND.

.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)