High Wind Watch 29, NWS Cheyenne, WY

002 
WWUS75 KCYS 240749
NPWCYS

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
1249 AM MST THU NOV 24 2011

...STRONG WINDS WILL BE POSSIBLE OVER PORTIONS OF SOUTHEAST
WYOMING FRIDAY MORNING THROUGH FRIDAY EVENING...

.A FAST MOVING STORM SYSTEM WILL PUSH INTO THE PACIFIC NORTHWEST
THURSDAY NIGHT. AS THIS HAPPENS THE SURFACE PRESSURE GRADIENT
WILL BEGIN TO TIGHTEN AND WINDS ABOVE THE SURFACE WILL
STRENGTHEN. WINDS WILL BEGIN INCREASING LATE THURSDAY NIGHT AND
PERSIST IN ADVANCE OF AND BEHIND THE PASSAGE OF COLD FRONT ON
FRIDAY.

WYZ106-110-116-117-242000-
/O.EXT.KCYS.HW.A.0029.111125T1600Z-111126T0600Z/
CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY-
NORTH SNOWY RANGE FOOTHILLS-SOUTH LARAMIE RANGE-
SOUTH LARAMIE RANGE FOOTHILLS-
INCLUDING THE CITIES OF...BORDEAUX...ARLINGTON...ELK MOUNTAIN...
VEDAUWOO...BUFORD...PUMPKIN VINE...HORSE CREEK...HARRIMAN...
WHITAKER
1249 AM MST THU NOV 24 2011

...HIGH WIND WATCH NOW IN EFFECT FROM FRIDAY MORNING THROUGH
FRIDAY EVENING...

THE HIGH WIND WATCH IS NOW IN EFFECT FROM FRIDAY MORNING THROUGH
FRIDAY EVENING. 

* TIMING...9 AM THROUGH 11 PM FRIDAY.

* WINDS...WEST WINDS OF 35 TO 45 MPH WITH GUSTS OF UP TO 65 MPH 
  WILL BE POSSIBLE. 

* IMPACTS...TRAVEL MAY BECOME DIFFICULT FOR THOSE WITH 
  LIGHTWEIGHT OR HIGH PROFILE VEHICLES ALONG INTERSTATES 80 NEAR 
  ARLINGTON AND OVER THE SUMMIT AS WELL AS INTERSTATE 25 NEAR 
  BORDEAUX. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH WIND WATCH MEANS THERE IS THE POTENTIAL FOR A HAZARDOUS
HIGH WIND EVENT. SUSTAINED WINDS OF AT LEAST 40 MPH...OR GUSTS OF
58 MPH OR STRONGER MAY OCCUR. CONTINUE TO MONITOR THE LATEST
FORECASTS.

&&

$$
GRIFFITH

397 
WWUS75 KCYS 242150
NPWCYS

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
250 PM MST THU NOV 24 2011

...STRONG WINDS EXPECTED ACROSS MUCH OF SOUTHEAST WYOMING AND 
WESTERN NEBRASKA LATE TONIGHT THROUGH SATURDAY EVENING...

.A FAST MOVING STORM SYSTEM WILL PUSH INTO THE PACIFIC NORTHWEST
TONIGHT. AS THIS HAPPENS...THE SURFACE PRESSURE GRADIENT WILL
BEGIN TO STRENGTHEN AND WINDS AT ARLINGTON...BORDEAUX...VEDAUWOO
AND THE INTERSTATE 80 SUMMIT BETWEEN LARAMIE AND CHEYENNE WILL
INCREASE MARKEDLY LATE TONIGHT AND CONTINUE THROUGH FRIDAY
EVENING. AS A STRONG COLD FRONT PASSES FROM WEST TO EAST ON
FRIDAY...STRONG WINDS WILL DEVELOP ACROSS MOST OF SOUTHEAST
WYOMING AND WESTERN NEBRASKA DURING THE DAY FRIDAY...ESPECIALLY
AFTER COLD FRONTAL PASSAGE AS A BORA HIGH WIND EVENT DEVELOPS.
THE STRONG WINDS WILL CONTINUE INTO FRIDAY EVENING BEFORE
DECREASING SOMEWHAT. 

ON SATURDAY...A PROLONGED HIGH WIND EVENT IS LOOKING INCREASINGLY
LIKELY FOR THE PANHANDLE OF WESTERN NEBRASKA...ESPECIALLY SOUTH OF
A SCOTTSBLUFF TO ALLIANCE LINE. STRONG WINDS WILL ALSO OCCUR
ACROSS SOUTHEAST WYOMING EAST OF INTERSTATE 25 ON SATURDAY.

WYZ106-110-116-117-251200-
/O.UPG.KCYS.HW.A.0029.111125T1600Z-111126T0600Z/
/O.NEW.KCYS.HW.W.0052.111125T1000Z-111126T0700Z/
CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY-
NORTH SNOWY RANGE FOOTHILLS-SOUTH LARAMIE RANGE-
SOUTH LARAMIE RANGE FOOTHILLS-
INCLUDING THE CITIES OF...BORDEAUX...ARLINGTON...ELK MOUNTAIN...
VEDAUWOO...BUFORD...PUMPKIN VINE...HORSE CREEK...HARRIMAN...
WHITAKER
250 PM MST THU NOV 24 2011

...HIGH WIND WARNING IN EFFECT FROM 3 AM FRIDAY TO MIDNIGHT MST
FRIDAY NIGHT...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A HIGH WIND
WARNING...WHICH IS IN EFFECT FROM 3 AM FRIDAY TO MIDNIGHT MST
FRIDAY NIGHT. THE HIGH WIND WATCH IS NO LONGER IN EFFECT. 

* TIMING...3 AM FRIDAY TO MIDNIGHT MST FRIDAY NIGHT.

* WINDS...WEST WINDS OF 35 TO 50 MPH WITH GUSTS OF UP TO 65 MPH.

* IMPACTS...TRAVEL WILL BECOME DIFFICULT FOR THOSE WITH
  LIGHTWEIGHT OR HIGH PROFILE VEHICLES ALONG INTERSTATES 80 NEAR
  ARLINGTON AND OVER THE SUMMIT BETWEEN LARAMIE AND CHEYENNE AS
  WELL AS ALONG INTERSTATE 25 NEAR BORDEAUX IN PLATTE COUNTY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED
OR OCCURRING. SUSTAINED WIND SPEEDS OF AT LEAST 40 MPH OR GUSTS
OF 58 MPH OR MORE CAN LEAD TO PROPERTY DAMAGE. FOR DETAILED ROAD
AND TRAVEL CONDITIONS IN WYOMING AND NEBRASKA...DIAL 5 1 1.

&&

$$

WYZ104-105-107>109-115-118-119-251200-
/O.NEW.KCYS.HW.W.0052.111125T1600Z-111126T0400Z/
FERRIS/SEMINOE/SHIRLEY MOUNTAINS-SHIRLEY BASIN-EAST PLATTE COUNTY-
GOSHEN COUNTY-CENTRAL CARBON COUNTY-LARAMIE VALLEY-
CENTRAL LARAMIE COUNTY-EAST LARAMIE COUNTY-
INCLUDING THE CITIES OF...MUDDY GAP...MEDICINE BOW...GLENDO...
WHEATLAND...CHUGWATER...GUERNSEY...TORRINGTON...RAWLINS...
SINCLAIR...HANNA...LARAMIE...CHEYENNE...BURNS...CARPENTER...
ALBIN...PINE BLUFFS
250 PM MST THU NOV 24 2011

...HIGH WIND WARNING IN EFFECT FROM 9 AM TO 9 PM MST FRIDAY...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A HIGH WIND
WARNING...WHICH IS IN EFFECT FROM 9 AM TO 9 PM MST FRIDAY. 

* TIMING...9 AM FRIDAY TO 9 PM FRIDAY.

* WINDS...WEST WIND 30 TO 50 MPH WITH GUSTS TO 65 MPH.

* IMPACTS...TRAVEL WILL BECOME DIFFICULT FOR THOSE WITH
  LIGHTWEIGHT OR HIGH PROFILE VEHICLES ALONG INTERSTATE 80 AND
  INTERSTATE 25. BE ESPECIALLY CAUTIOUS ON NORTH TO SOUTH ORIENTED
  ROADS WHERE STRONG CROSSWINDS WILL BUFFET YOUR VEHICLE...
  ESPECIALLY HIGH PROFILE VEHICLES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED
OR OCCURRING. SUSTAINED WIND SPEEDS OF AT LEAST 40 MPH OR GUSTS
OF 58 MPH OR MORE CAN LEAD TO PROPERTY DAMAGE. FOR DETAILED ROAD
AND TRAVEL CONDITIONS IN WYOMING AND NEBRASKA...DIAL 5 1 1.

&&

$$

NEZ002-003-019>021-054-055-095-096-251200-
/O.NEW.KCYS.WI.Y.0024.111125T1900Z-111126T0400Z/
/O.NEW.KCYS.HW.A.0030.111126T1300Z-111127T0300Z/
DAWES-BOX BUTTE-SCOTTS BLUFF-BANNER-MORRILL-KIMBALL-CHEYENNE-
NORTH SIOUX-SOUTH SIOUX-
INCLUDING THE CITIES OF...CHADRON...ALLIANCE...SCOTTSBLUFF...
GERING...HARRISBURG...BRIDGEPORT...BAYARD...KIMBALL...SIDNEY...
HARRISON...AGATE
250 PM MST THU NOV 24 2011

...WIND ADVISORY IN EFFECT FROM NOON TO 9 PM MST FRIDAY...
...HIGH WIND WATCH IN EFFECT FROM SATURDAY MORNING THROUGH
SATURDAY EVENING...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT FROM NOON TO 9 PM MST FRIDAY. A
HIGH WIND WATCH HAS ALSO BEEN ISSUED. THIS HIGH WIND WATCH IS IN
EFFECT FROM SATURDAY MORNING THROUGH SATURDAY EVENING. 

* TIMING...WIND ADVISORY FROM NOON FRIDAY TO 9 PM MST FRIDAY.
  HIGH WIND WATCH FROM 6 AM SATURDAY TO 8 PM SATURDAY.

* WINDS...NORTHWEST WIND 20 TO 35 MPH WITH GUSTS TO 50 MPH ON
  FRIDAY. NORTHWEST WIND INCREASING TO 30 TO 45 MPH WITH GUSTS TO
  65 MPH ON SATURDAY. WINDS WILL BE STRONGEST SOUTH OF A
  SCOTTSBLUFF TO ALLIANCE LINE...AND ESPECIALLY ALONG INTERSTATE
  80 FROM THE WYOMING STATE LINE TO EAST OF SIDNEY...INCLUDING
  KIMBALL AND SIDNEY.

* IMPACTS...ON FRIDAY...BE CAUTIOUS WHEN DRIVING ACROSS THE
  PANHANDLE...ESPECIALLY SOUTH OF A SCOTTSBLUFF TO ALLIANCE LINE.
  ON SATURDAY...TRAVEL WILL BECOME DIFFICULT FOR THOSE WITH
  LIGHTWEIGHT OR HIGH PROFILE VEHICLES ALONG INTERSTATE 80 AND
  OTHER ROADS. BE ESPECIALLY CAUTIOUS ON NORTH TO SOUTH ORIENTED
  ROADS WHERE STRONG CROSSWINDS WILL BUFFET YOUR VEHICLE...
  ESPECIALLY HIGH PROFILE VEHICLES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

A HIGH WIND WATCH MEANS THERE IS THE POTENTIAL FOR A HAZARDOUS
HIGH WIND EVENT. SUSTAINED WINDS OF AT LEAST 40 MPH...OR GUSTS OF
58 MPH OR STRONGER MAY OCCUR. CONTINUE TO MONITOR THE LATEST
FORECASTS.

&&

$$

RUBIN

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE CHEYENNE WY
1025 AM MST WED NOV 23 2011

.AVIATION...18Z TAFS. VFR. AREAS OF WEST TO SOUTHWEST WIND 20 TO
30 KNOTS GUSTING TO 40 KNOTS THROUGH 00Z...THEN WIND DECREASING.
RUBIN

&&

.PREV DISCUSSION... /ISSUED 245 AM MST WED NOV 23 2011...CORRECTION/

SHORT TERM...TODAY THROUGH FRIDAY...STRONG WINDS OVER THE WIND
PRONE AREAS ALONG I80 AND I25 HAVE SUBSIDED EARLY THIS MORNING
WITH GUSTS AROUND 40 MPH. THESE WINDS WILL CONTINUE TO LOWER
THROUGH THE MORNING AS THE LLVL PRESSURE GRADIENT WEAKENS.
HOWEVER...PERIODS OF STRONG GUSTY WINDS IN THESE AREAS WILL BE
POSSIBLE INTO THURSDAY.

QUIET WEATHER EXPECTED THROUGH THANKSGIVING AS MODELS CONTINUE TO
SHOW A RIDGE OF HIGH PRESSURE BUILDING INTO THE CENTRAL AND
NORTHERN ROCKIES AS WELL AS THE GREAT PLAINS. THE ONLY MINOR
FORECAST CONCERN IS GUSTY WINDS ACROSS THE WIND PRONE AREAS OF
SOUTHEAST WYOMING...ESPECIALLY LATE AT NIGHT AND EARLY IN THE
MORNING DUE TO GAP WINDS BELOW THE NOCTURNAL INVERSION LAYER.
MODELS DO NOT SHOW A VERY INTENSE PRESSURE GRADIENT NEAR THE
SURFACE...BUT THE NAM DOES HINT TOWARDS A 4 OR 5 MB GRADIENT BY
EARLY THURSDAY MORNING AS THE LEE-SIDE SURFACE TROUGH STRENGTHENS.
WESTERLY WINDS GUSTING UP TO 55 MPH ARE POSSIBLE ALONG I25 NEAR
WHEATLAND AS WELL AS PORTIONS OF I80 BETWEEN RAWLINS AND CHEYENNE.
TEMPERATURES WILL CONTINUE TO WARM TODAY AND THANKSGIVING
DAY...WITH HIGHS IN THE 50S AND 60S EAST OF THE LARAMIE RANGE AND
HIGHS AROUND 50 DEGREES WEST OF THE LARAMIE RANGE.

FOR FRIDAY...MODELS SHOW A FAST MOVING UPPER LEVEL TROUGH AND
ASSOCIATED PACIFIC COLD FRONT MOVING EASTWARD ACROSS THE PAC NW
AND INTO WYOMING BY EARLY FRIDAY MORNING. ANOTHER UPPER LEVEL
TROUGH WILL PUSH ACROSS SOUTHERN CALIF AND ARIZONA...BUT MODELS
INDICATE THIS SYSTEM WILL STAY FAR SOUTH OF WYOMING WITH NO IMPACT
EXPECTED. WINDS WILL BE THE PRIMARY CONCERN ON FRIDAY WITH A
STRONG PRESSURE GRADIENT EXPECTED AND 700 MB WINDS INCREASING TO
OVER 50 KNOTS. MODELS SHOW SOME LLVL INSTABILITY WITH THIS FRONT
SO EXPECT THESE STRONGER WINDS TO TRANSLATE TO THE SURFACE DUE TO
DAYTIME BOUNDARY LAYER MIXING. MAY NEED HIGH WIND HEADLINES ACROSS
MOST OF SOUTHEAST WYOMING FOR FRIDAY. SOME LIGHT PRECIPITATION IS
EXPECTED BY FRIDAY AFTERNOON. THERE IS SOME CONCERN OF A BURST OF
LOCALLY HEAVY SNOWFALL FRIDAY AFTERNOON SINCE MODELS SHOW LI/S AS
LOW AS 0C DURING THE DAY AND RAPID COOLING BETWEEN 700MB TO 500MB
TO RELEASE LLVL INSTABILITY. THE SYSTEM MOVES VERY QUICK ACROSS
THE AREA SO DO NOT EXPECT SIGNIFICANT SNOWFALL...BUT A QUICK INCH
OR TWO OF SNOW ACCUMULATION IS NOT OUT OF THE QUESTION. INCREASED
POP...ESPECIALLY WEST OF THE LARAMIE RANGE. ALTHOUGH WINDS WILL BE
DOWNSLOPE FROM THE WEST OR NORTHWEST...BELIEVE THE LLVL
INSTABILITY WILL PRODUCE ENOUGH LIFT TO PRODUCE PRECIP INTO FRIDAY
EVENING. TEMPERATURES WILL LOWER BEHIND THE FRONT ON
FRIDAY...WITH READINGS LOWERING INTO THE 20S AND 30S BY FRIDAY
EVENING.

LONG TERM...FRIDAY NIGHT THROUGH TUESDAY...
UPPER TROF WILL SWING ACROSS THE CWA FRIDAY EVENING WITH SOME
MAINLY LIGHT SNOW OR SNOW SHOWERS ACCOMPANYING IT. THE SNOW WILL
MOVE OUT FAIRLY QUICKLY FRIDAY NIGHT WITH CLEARING SKIES LATE.
QUITE BREEZY TO WINDY CONDITIONS ALONG WITH RATHER COOL
TEMPERATURES WILL MAKE FOR A BLUSTERY DAY ON SATURDAY THEN WARMING
BACK UP AGAIN SUNDAY AS UPPER RIDGE MOVES OVER THE AREA AND
COMBINES WITH DOWNSLOPING SFC WINDS AND SUNSHINE. TEMPERATURES
WILL THEN TREND BACK DOWN ON MONDAY AND TUESDAY AS UPPER HEIGHTS
LOWER IN RESPONSE TO SHORTWAVE ENERGY FLATTENING THE UPPER HIGH.
NEXT UPPER TROF LOOKS TO PASS ACROSS MONDAY NIGHT BUT EXPECT
LITTLE WEATHER WITH IT OTHER THAN SOME WINDINESS AS AIRMASS WILL
BE FAIRLY DRY.  DRY AND A BIT ON THE COOL SIDE FOR TUESDAY.

AVIATION...12Z TAFS...
VFR EXPECTED OVER ALL TERMINALS TODAY THROUGH TONIGHT WITH VARYING
AMOUNTS OF HIGH CLOUDS PASSING ACROSS THE REGION IN WESTERLY FLOW
ALOFT. SOME LOCALLY GUSTY WINDS EXPECTED VCTY OF THE SE WY MTNS
MAINLY THIS AFTERNOON.

FIRE WEATHER...WARM AND DRY CONDITIONS ARE EXPECTED THROUGH THE
END OF THIS WEEK. WESTERLY WINDS WILL BE GUSTY AT TIMES THROUGH
THIS WEEK AS WELL...WITH THE STRONGEST WINDS EXPECTED ON FRIDAY.
HUMIDITIES ACROSS THE PLAINS WILL DROP INTO THE UPPER TEENS AND
AROUND 20 PERCENT FOR WEDNESDAY AND THURSDAY. A PACIFIC COLD FRONT
WILL QUICKLY PUSH ACROSS THE REGION ON FRIDAY RESULTING IN STRONG
GUSTY WINDS...MUCH COOLER TEMPERATURES AND A CHANCE FOR SOME LIGHT
PRECIPITATION.

&&

.CYS WATCHES/WARNINGS/ADVISORIES...
WY...NONE.
NE...NONE.

&&

SHORT TERM/FIRE WEATHER...TJT
LONG TERM/AVIATION...RE

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHEYENNE WY
351 AM MST WED NOV 23 2011

NEZ002-003-019>021-054-055-095-096-WYZ101>103-107>109-111>115-
117>119-241100-
DAWES-BOX BUTTE-SCOTTS BLUFF-BANNER-MORRILL-KIMBALL-CHEYENNE-
NORTH SIOUX-SOUTH SIOUX-CONVERSE COUNTY LOWER ELEVATIONS-
NIOBRARA COUNTY-NORTH LARAMIE RANGE-EAST PLATTE COUNTY-
GOSHEN COUNTY-CENTRAL CARBON COUNTY-SOUTHWEST CARBON COUNTY-
SIERRA MADRE RANGE-UPPER NORTH PLATTE RIVER BASIN-SNOWY RANGE-
LARAMIE VALLEY-SOUTH LARAMIE RANGE FOOTHILLS-
CENTRAL LARAMIE COUNTY-EAST LARAMIE COUNTY-
351 AM MST WED NOV 23 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE WESTERN NEBRASKA
PANHANDLE...EAST CENTRAL WYOMING...SOUTH CENTRAL WYOMING AND
SOUTHEAST WYOMING.

.DAY ONE...TODAY AND TONIGHT

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY AND TONIGHT.

&&

THIS PRODUCT...ALONG WITH OTHER WEATHER...HYDROLOGIC...AND
CLIMATE INFORMATION IS AVAILABLE ON THE WEB AT...
HTTP://WEATHER.GOV/CHEYENNE

WYZ104>106-110-116-241100-
FERRIS/SEMINOE/SHIRLEY MOUNTAINS-SHIRLEY BASIN-
CENTRAL LARAMIE RANGE AND SOUTHWEST PLATTE COUNTY-
NORTH SNOWY RANGE FOOTHILLS-SOUTH LARAMIE RANGE-
351 AM MST WED NOV 23 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL WYOMING...
SOUTH CENTRAL WYOMING AND SOUTHEAST WYOMING.

.DAY ONE...TODAY AND TONIGHT

LOCALLY GUSTY WESTERLY WINDS ARE EXPECTED THROUGH TONIGHT
ESPECIALLY IN WIND FAVORED LOCATIONS SUCH AS NEAR ARLINGTON AND
WHEATLAND. SOME GUSTS AROUND 45 MPH MAY OCCUR IN THESE AREAS.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY AND TONIGHT.

&&

THIS PRODUCT...ALONG WITH OTHER WEATHER...HYDROLOGIC...AND
CLIMATE INFORMATION IS AVAILABLE ON THE WEB AT...
HTTP://WEATHER.GOV/CHEYENNE