Wind Advisory 6, NWS Salt Lake City, UT

000 
WWUS75 KSLC 282253
NPWSLC

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
353 PM MST TUE FEB 28 2006

UTZ005-010200-
/O.CAN.KSLC.HW.W.0004.000000T0000Z-060228T2300Z/
/O.EXB.KSLC.WI.Y.0006.000000T0000Z-060301T0200Z/
GREAT SALT LAKE DESERT AND MOUNTAINS-
353 PM MST TUE FEB 28 2006

...HIGH WIND WARNING IS CANCELLED...
...WIND ADVISORY IN EFFECT UNTIL 7 PM MST THIS EVENING...

THE NATIONAL WEATHER SERVICE IN SALT LAKE CITY HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT UNTIL 7 PM MST THIS EVENING. THE
HIGH WIND WARNING HAS BEEN CANCELLED. 

THIS WIND ADVISORY IS FOR THE NORTHWEST DESERTS. SUSTAINED
NORTHWEST WINDS OF 25-35 MPH WITH GUSTS OVER 40 MPH WILL CONTINUE
THROUGH ABOUT 7 PM THIS EVENING BEHIND A COLD FRONT.

THESE WINDS WILL DIMINISH LATER THIS EVENING INTO THE 10-20 MPH
RANGE...THEN DROP OFF OVERNIGHT.

A WIND ADVISORY MEANS THAT WINDS OF 35 MPH ARE EXPECTED. WINDS
THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH
PROFILE VEHICLES. USE EXTRA CAUTION.

$$

UTZ003-010000-
/O.CAN.KSLC.HW.W.0004.000000T0000Z-060228T2300Z/
SALT LAKE AND TOOELE VALLEYS-
353 PM MST TUE FEB 28 2006

...HIGH WIND WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN SALT LAKE CITY HAS CANCELLED THE
HIGH WIND WARNING FOR THE SALT LAKE AND TOOELE VALLEYS. THE VERY
STRONG WINDS HAVE DIMINISHED. WEST TO NORTHWEST WINDS OF 20-25 MPH
WILL DEVELOP LATE TODAY AS A COLD FRONT MOVES THROUGH THIS AREA.
WINDS WILL DIMINISH BY LATE EVENING.

$$

UTZ015-016-010000-
/O.CAN.KSLC.WI.Y.0006.000000T0000Z-060301T0200Z/
WEST CENTRAL UTAH-SOUTHWEST UTAH-
353 PM MST TUE FEB 28 2006

...WIND ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN SALT LAKE CITY HAS CANCELLED THE
WIND ADVISORY FOR WEST CENTRAL AND SOUTHWEST UTAH. WINDS HAVE
DECREASED INTO THE 20-30 MPH RANGE IN THESE AREAS AND WILL
CONTINUE TO DIMINISH THROUGH THE REMAINDER OF THE AFTERNOON. 

$$

UTZ002-010000-
/O.EXP.KSLC.WI.Y.0006.000000T0000Z-060228T2300Z/
NORTHERN WASATCH FRONT-
353 PM MST TUE FEB 28 2006

...WIND ADVISORY WILL EXPIRE AT 4 PM MST THIS AFTERNOON...

THE WIND ADVISORY FOR THE NORTHERN WASATCH FRONT WILL EXPIRE AT 4
PM MST THIS AFTERNOON. WINDS HAVE DIMINISHED IN THIS AREA. 

$$

000 
WWUS75 KSLC 010146
NPWSLC

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
646 PM MST TUE FEB 28 2006


UTZ005-010245-
/O.CAN.KSLC.WI.Y.0006.000000T0000Z-060301T0200Z/
GREAT SALT LAKE DESERT AND MOUNTAINS-
645 PM MST TUE FEB 28 2006

...WIND ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN SALT LAKE CITY HAS CANCELLED THE
WIND ADVISORY FOR THE GREAT SALT LAKE DESERT AND MOUNTAINS. 

WESTERLY WINDS BEHIND THE AFTERNOON COLD FRONT HAVE DROPPED OFF
CONSIDERABLY EARLY THIS EVENING. THESE WINDS WILL REMAIN IN THE
10-20 MPH RANGE THROUGH THE BALANCE OF THE EVENING.
 
$$

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
945 AM MST TUE FEB 28 2006

.SYNOPSIS...A STRONG SOUTHWEST FLOW WILL REMAIN OVER THE AREA TODAY
AHEAD OF AN APPROACHING MOIST PACIFIC STORM SYSTEM. A COLD FRONT
WILL MOVE INTO NORTHERN UTAH LATE THIS AFTERNOON THEN SWING THROUGH
CENTRAL UTAH THIS EVENING BEFORE WEAKENING LATER TONIGHT.

&&

.DISCUSSION...STRONG WINDS WHIPPING UP ACROSS WESTERN UTAH THIS
MORNING WITH THE STRONGEST WINDS IN THE TOOELE AND SALT LAKE
VALLEYS. SLC MORNING SOUNDING DEPICTED THESE STRONG WINDS WITH 50
KTS AT 5700 FT AND PEAKING AT 58 KTS AT 7000 FT MSL. THE MSAS
SURFACE CHARTS SHOW THAT BOTH THE NAM AND GFS WERE ABOUT 6 MB TOO
HIGH THE INTENSITY OF THE LOW IN CENTRAL NEVADA AT 12Z THIS MORNING.
ALTHOUGH PRESSURE HAVE BEEN COMING UP BELIEVE THE MODEL GUIDANCE
WILL MISS THE TARGET ON THE LOWEST SURFACE PRESSURE AS IT MOVES
THROUGH NORTHERN UTAH THIS AFTERNOON. THE COLD FRONT JUST PASSED
ELKO NV AT 9 AM SO WE WILL CONTINUE TO EXPERIENCE THESE STRONG WINDS
FROM THE SOUTH THROUGH ABOUT 3 PM. THIS TIMING IS BASED ON THE OLD
RULE OF THUMB OF 6 HOURS FROM ELKO TO SLC AND USE OF THE DISTANCE
SPEED TOOL USED WITH THE SATELLITE IMAGERY ALSO INDICATING FRONTAL
PASSAGE ABOUT 2-3 PM THIS AFTERNOON. THE GFS IS MUCH BETTER WITH
TIMING AS THE NAM IS TOO SLOW WITH AN EARLY EVENING TIMING FORECAST
AT SLC.  WILL GO WITH DETAILS FROM GFS.

RADAR IS SHOWING A SMATTERING OF LIGHT SHOWERS MAINLY OVER THE
MOUNTAINS THIS MORNING AND DO NOT SEE THIS CHANGING MUCH UNTIL THE
STRONG COLD FRONT MOVES IN.  SNOW LEVELS WILL REMAIN ABOVE 7500
UNTIL THE FRONT THEN DROP RAPIDLY TO ABOUT 5000 FT WITH AND BEHIND
THE FRONT. TEMPERATURES HAVE BEEN DROPPING INTO THE LOW 40S BEHIND
THIS FRONT AT VALLEY LOCATIONS SO DO NOT SEE ANY REASON TO HAVE ANY
COLDER TEMPERATURES THAN THAT WHEN THE FRONT MOVES THROUGH ACROSS
NORTHERN AREAS THIS AFTERNOON. IF ANY SNOW OCCURS WITH THE FRONT IT
SHOULD BE ONLY ON THE BENCHES. THERE HAVE BEEN ISOLATED
THUNDERSTORMS WITH THIS FRONT AND WITH MODEL GUIDANCE SHOWING LIFTED
INDICATE NEAR ZERO THIS AFTERNOON THE CURRENT FORECAST OF CHANCE OF
THUNDERSTORMS LOOKS GOOD.

GENERAL SNOW AMOUNTS WILL NOT BE THAT GREAT IN THE MOUNTAINS WITH
THIS SYSTEM FOR A FEW REASONS. ITS A SHORT LIVED EVENT...
TEMPERATURES ARE MILD INITIALLY SO IT WILL BE WET SNOW OR RAIN ABOVE
7500 FT AND IT LOOKS RATHER CONVECTIVE. ALSO SOME DRY AIR ALOFT
COULD MIX IN RAPIDLY BEHIND THE FRONT SO NOT IMPRESSED WITH THE
POTENTIAL AS IT STANDS NOW.

BECAUSE THIS STORM SYSTEM IS LIFTING NORTHEAST ACROSS NEVADA AND
INTO IDAHO THE FRONT WILL LOSE IT PUNCH BY THE TIME IT REACHES
CENTRAL UTAH THIS EVENING. EVEN THOUGH THE SURFACE FRONT WILL LIKELY
REACH ARIZONA TONIGHT THERE WILL BE LITTLE COOLING ALOFT TO SUPPORT
MUCH PRECIPITATION DOWN THERE SO IT LOOKS LIKE SOUTHERN UTAH WILL
BASICALLY GET SKIPPED ONCE AGAIN. SOME MOUNTAIN SITES COULD SEE
0.25 TO 0.40 OF AN INCH BUT THAT WILL BE FEW AND FAR BETWEEN.

CURRENT PACKAGE IN GOOD SHAPE SO WILL LET IT RIDE AS IS.

&&

.AVIATION...STRONG SOUTH WINDS WILL CONTINUE TO AFFECT THE KSLC
TERMINAL AREA TODAY. A HIGH WIND WARNING REMAINS IN EFFECT THROUGH
23Z. THE CEILING IS EXPECTED TO REMAIN ABOVE 6000 FEET UNTIL A COLD
FRONT CROSSES THE TERMINAL BETWEEN 21Z AND 22Z ALTHOUGH THERE IS A
40 PERCENT CHANCE THAT THE CEILING COULD DEVELOP AT 5000 OR 6000
FEET BEFORE THAT TIME. EXPECT OCCASIONAL MVFR CEILINGS AND VSBYS IN
RAIN ONCE THE FRONT PASSES 21Z TO 03Z. THERE IS A 30 PERCENT CHANCE
OF IFR VSBYS IN ANY SNOW SHOWERS DURING THIS TIME.

&&

.SLC WATCHES/WARNINGS/ADVISORIES...
UT...HIGH WIND WARNING FOR WESTERN UTAH VALLEYS TODAY UNTIL 23Z.

  ...WINTER STORM WARNING FOR WASATCH...WESTERN UINTA...CENTRAL AND
     SOUTHWEST MOUNTAINS AND THE WASATCH PLATEAU TODAY AND TONIGHT.

WY...NONE.

&&

PUBLIC...STRUTHWOLF
AVIATION...WILENSKY

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
500 AM MST TUE FEB 28 2006

UTZ001>021-WYZ021-011400-
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-
500 AM MST TUE FEB 28 2006

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

.DAY ONE... TODAY AND TONIGHT

A PACIFIC STORM SYSTEM WILL MOVE ACROSS UTAH TODAY AND TONIGHT. THE
STORM WILL BRING STRONG SOUTH WINDS ACROSS THE WESTERN VALLEYS AND
MOUNTAINS OF UTAH TODAY AHEAD OF AN APPROACHING COLD FRONT. THE
WINDS WILL DECREASE THIS EVENING BEHIND THE COLD FRONT BUT SHOWERS
WILL INCREASE WITH BRIEF HEAVY SNOW SHOWERS AFFECTING THE MOUNTAIN
AREAS THROUGH TONIGHT. SEE THE LATEST WINTER WEATHER PRODUCTS FOR
DETAILS.

.DAYS TWO THROUGH SEVEN... WEDNESDAY THROUGH MONDAY

ANOTHER STORM SYSTEM IS EXPECTED TO ARRIVE LATE FRIDAY AND CONTINUE
THROUGH EARLY SATURDAY. WINDY CONDITIONS WITH RAIN AND SNOW SHOWERS
ARE POSSIBLE ACROSS MAINLY WESTERN AND NORTHERN UTAH.