High Wind Warning 6, NWS Riverton, WY

373 
WWUS75 KRIW 092153
NPWRIW

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
253 PM MST MON FEB 9 2015

...HIGH WINDS PROBABLY OVER PARK COUNTY THROUGH TUESDAY MORNING...

.A STRONG SURFACE PRESSURE GRADIENT COMBINED WITH STRONG WEST
WINDS ALOFT WILL PRODUCE CONDITIONS FAVORABLE FOR HIGH WINDS. THE
THREAT OF HIGH WINDS WILL CONTINUE INTO TUESDAY MORNING.

WYZ002-003-101100-
/O.CON.KRIW.HW.W.0006.000000T0000Z-150210T1700Z/
ABSAROKA MOUNTAINS-CODY FOOTHILLS-
INCLUDING THE CITIES OF...CODY...MEETEETSE
253 PM MST MON FEB 9 2015

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 10 AM MST TUESDAY...

A HIGH WIND WARNING REMAINS IN EFFECT UNTIL 10 AM MST TUESDAY. 

* SUMMARY AND TIMING...WINDS WILL INCREASE THIS
  AFTERNOON...BECOMING STRONG THIS EVENING AND THROUGH THE EARLY
  MORNING PERIOD. 

* WIND...WEST WINDS OF 30 TO 45 MPH WITH GUSTS TO 60 TO 75 MPH.

* IMPACTS...DAMAGING WINDS ARE POSSIBLE. TRAVEL MAY BECOME 
  HAZARDOUS FOR LIGHT WEIGHT AND HIGH PROFILE VEHICLES. A BLOW 
  OVER THREAT WILL EXIST FOR TRAVELERS ALONG HIGHWAY 120. 

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.

THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF
TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET
AT WYOROAD.INFO.

&&

$$

475 
WWUS75 KRIW 100941
NPWRIW

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
241 AM MST TUE FEB 10 2015

WYZ002-003-101045-
/O.CAN.KRIW.HW.W.0006.000000T0000Z-150210T1700Z/
ABSAROKA MOUNTAINS-CODY FOOTHILLS-
INCLUDING THE CITIES OF...CODY...MEETEETSE
241 AM MST TUE FEB 10 2015

...HIGH WIND WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN RIVERTON HAS CANCELLED THE HIGH
WIND WARNING. 

HIGH WINDS ARE NOT LONGER EXPECTED SO THE HIGH WIND WARNING HAS
BEEN CANCELLED. WIND GUSTS TO 40 MPH ARE STILL POSSIBLE INTO THIS
MORNING AROUND CLARK.

$$

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE RIVERTON WY
1010 PM MST SUN FEB 8 2015

.SHORT TERM...TONIGHT THROUGH MONDAY (ISSUED AT 220 PM MST)

MOST AREAS WILL SEE DECREASING WINDS TONIGHT.  LOWS SHOULD BE WARMER
THAN LAST NIGHT. CLOUDS WILL START TO INCREASE ACROSS THE WESTERN
MOUNTAINS WITH AREAS OF LIGHT SNOW DEVELOPING OVER THE HIGHER
PEAKS LATE. SNOW WILL PICK UP ACROSS THE WEST IN THE MORNING AND
CONTINUE THROUGH THE DAY. A WINTER WEATHER ADVISORY FOR SNOW HAS
BEEN ISSUED FOR THE MOUNTAINS OF TETON COUNTY AND YELLOWSTONE
NATIONAL PARK. THE SURFACE PRESSURE GRADIENT WILL INCREASE WITH
STRONG WINDS ALOFT COMBINING FOR POTENTIAL HIGH WINDS IN PARK COUNTY.
WINDS WILL BE HIGHER ACROSS THE SOUTH AND EAST WITH WARMER
TEMPERATURES. A HIGH WIND WATCH IS IN EFFECT FOR PARK COUNTY.

.LONG TERM...MONDAY NIGHT THROUGH SUNDAY

SHORTWAVE AND ASSOCIATED COLD FRONT IS PUSHING QUICKLY EAST OF THE
DIVIDE TO START THIS PERIOD WITH A LOT OF WIND AND MAINLY MOUNTAIN
PCPN. ACCUMULATING SNOWFALL WILL CONTINUE IN THE NW MTNS THROUGH THE
EVENING BEFORE WINDING DOWN. POTENTIAL FOR HIGH WIND CONTINUES
THROUGH MONDAY NIGHT WITH STRONG MID LEVEL FLOW BEING FORCED DOWN
BEHIND THE SHORTWAVE. WRF CROSS SECTION SHOWS SOME MTN WAVE ACTION
AND VERY STRONG 50-60KT+ FLOW WORKING ITS WAY DOWN TO NEAR OR AT THE
VALLEY FLOW DURING THE EVENING. BRIEF PERIOD OF STRONG WINDS MAY
ALSO WORK THEIR WAY DOWN FROM DUBOIS AND CROWHEART TO THE WIND RIVER
BASIN FOR A FEW HOURS MONDAY EVENING BEHIND THE SHORTWAVE. MULTIPLE
SHORTWAVES IN GENERAL NW FLOW AFFECT THE AREA TUESDAY AND TUESDAY
NIGHT. ONE SHORTWAVE MOVES JUST TO OUR SW WITH SOME IMPACT IN THE
SWRN CORNER. ANOTHER WEAKER SHORTWAVE AND COLD FRONT MOVE INTO THE
NORTH TUESDAY WITH A GOOD CHANCE OF SNOW IN THE NRN MOUNTAINS AND A
CHANCE OF LOWER ELEVATION RAIN SHOWERS TUE AND SNOW SHOWERS TUE
NIGHT. PROBABLY SUB-ADVISORY AMOUNTS IN THE NRN MOUNTAINS BUT 3-6
INCHES IS CERTAINLY POSSIBLE TUE INTO TUESDAY NIGHT. NRN PLAINS
SHORTWAVE PUSHES COLD FRONT INTO THE FAR NORTH TUESDAY AND POSSIBLY
AS FAR SOUTH AS CENTRAL WYO LATE TUE INTO TUE EVENING. STRONG NORTH
WIND A DISTINCT POSSIBILITY IN NRN JOHNSON COUNTY TUESDAY BEHIND THE
FRONT. RIDGE THEN TAKES CONTROL OF THE WEATHER FROM THE MIDDLE PART
OF THE WEEK ONWARD TO NEARLY THE END OF THE MEDIUM RANGE WITH VERY
MILD MID LEVEL TEMPS DEVELOPING ONCE AGAIN. 40S AND 50S FOR MOST
AREAS WITH A COUPLE 60S POSSIBLY CROPPING UP IN THE FULLY MIXED
AREAS. MOUNTAINS WILL BE IN THE 30S AND 40S WITH SOME 50S IN THE
LOWER EAST SLOPE FOOTHILLS IN THE THURSDAY THROUGH SATURDAY
TIMEFRAME. 12Z ECMWF HAS COME AROUND TO THE GFS 12Z RUN WITH A
SHORTWAVE DROPPING DOWN INTO THE PACNW SUNDAY NIGHT WITH THE LEADING
EDGE OF THE SYSTEM BEGINNING TO IMPACT THE NW AND NRN REACHES. STILL
LOW CONFIDENCE WITH THIS DEVELOPMENT WITH EACH MODEL AND EACH MODEL
RUN CHANGING CONSIDERABLY. UNTIL THEN THOUGH...DRY WEDNESDAY THROUGH
THE DAY SUNDAY WITH GENERALLY ABOVE TO MUCH ABOVE NORMAL
TEMPERATURES AND NO SIGNIFICANT WIND.

&&

.AVIATION.../06Z ISSUANCE/

EAST OF THE DIVIDE...KCOD/KCPR/KLND/KRIW/KWRL ROUTES

VFR CONDITIONS WILL OCCUR THROUGH THE PERIOD. WIND SPEEDS WILL
INCREASE OVER THE AREA MONDAY MORNING THROUGH EARLY MON EVENING.
KCOD WILL SEE A GUSTY WIND THROUGH 06Z TUE. THERE WILL BE AREAS OF
LOW LEVEL WIND SHEAR OVER AND NEAR THE EAST SLOPES OF THE MOUNTAINS
MONDAY MORNING THROUGH 01Z TUESDAY. ISOLATED RAIN SHOWERS MONDAY
AFTERNOON FOR THE LOWER ELEVATIONS. SOME SNOW OVER THE HIGHER PEAKS
OF THE MOUNTAINS MONDAY INTO MONDAY NIGHT WITH AREAS OF MVFR
CONDITIONS.

WEST OF THE DIVIDE...KBPI/KJAC/KPNA/KRKS ROUTES

VFR CONDITIONS UNTIL 12Z. CLOUDS WILL LOWER OVER THE WEST AS RAIN
AND SNOW DEVELOPS AFTER 13Z WITH MVFR AND IFR CONDITIONS PREVAILING
BY 18Z. KRKS AIRPORT WILL SEE VFR CONDITIONS PREVAIL WITH A GUSTY
WIND MONDAY...DECREASING BY 02Z TUE. POSSIBLE SHOWERS IN THE VCNTY
MONDAY AFTERNOON UNTIL 02Z TUE.

THE KJAC AIRPORT WILL BE IMPACTED BY ADVERSE WEATHER CONDITIONS
THROUGH MUCH OF MONDAY. CONDITIONS AT KJAC WILL IMPROVE SOME BY 03Z
TUE.

&&

.FIRE WEATHER...

SNOW WILL RETURN TO THE WEST WITH INCREASING WIND EAST OF THE
CONTINENTAL DIVIDE. SNOWFALL OF 6 TO 12 INCHES EXPECTED IN THE
MOUNTAINS OF TETON COUNTY AND YELLOWSTONE NATIONAL PARK...OTHER
MOUNTAIN AREAS OF THE WEST CAN EXPECT 3 TO 7 INCHES. OVER THE EAST
SLOPES OF THE ABSAROKA MOUNTAINS AND CODY FOOTHILLS...ANOTHER HIGH
WIND EVENT IS POSSIBLE.  MUCH OF THE EAST WILL SEE INCREASED WEST
TO SOUTHWEST WINDS.  THE WINDY AREAS SHOULD SEE FAIR TO GOOD SMOKE
DISPERSAL...WHILE AREAS OF THE WEST WILL HAVE POOR SMOKE DISPERSAL
WITH LOW STRATUS CLOUDS.

&&

.RIW WATCHES/WARNINGS/ADVISORIES...

HIGH WIND WATCH FROM MONDAY MORNING THROUGH TUESDAY MORNING
WYZ002-003.

WINTER WEATHER ADVISORY FROM 8 AM MONDAY TO 2 AM MST TUESDAY
WYZ001-012.

&&

SHORT TERM...C.BAKER
LONG TERM...SKRBAC
AVIATION...AR
FIRE WEATHER...C.BAKER

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE RIVERTON WY
223 PM MST SUN FEB 8 2015

WYZ001>020-022>030-091430-
ABSAROKA MOUNTAINS-BIGHORN MOUNTAINS SOUTHEAST-
BIGHORN MOUNTAINS WEST-CASPER MOUNTAIN-CODY FOOTHILLS-
EAST SWEETWATER COUNTY-FLAMING GORGE-
GREEN MOUNTAINS AND RATTLESNAKE RANGE-JACKSON HOLE-LANDER FOOTHILLS-
NATRONA COUNTY LOWER ELEVATIONS-NORTH BIG HORN BASIN-
NORTHEAST JOHNSON COUNTY-OWL CREEK AND BRIDGER MOUNTAINS-
ROCK SPRINGS AND GREEN RIVER-SALT RIVER AND WYOMING RANGES-
SOUTH LINCOLN COUNTY-SOUTHEAST BIG HORN BASIN-
SOUTHEAST JOHNSON COUNTY-SOUTHWEST BIG HORN BASIN-STAR VALLEY-
TETON AND GROS VENTRE MOUNTAINS-UPPER GREEN RIVER BASIN-
UPPER GREEN RIVER BASIN FOOTHILLS-UPPER WIND RIVER BASIN-
WIND RIVER BASIN-WIND RIVER MOUNTAINS EAST-WIND RIVER MOUNTAINS WEST-
YELLOWSTONE NATIONAL PARK-
223 PM MST SUN FEB 8 2015

THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN AND CENTRAL WYOMING.

...HIGH WIND WATCH FOR PARK COUNTY MONDAY AND MONDAY NIGHT...
...WINTER WEATHER ADVISORY FOR TETON COUNTY AND YELLOWSTONE NATIONAL
PARK MONDAY AND MONDAY NIGHT...

.DAY ONE...TODAY AND TONIGHT

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

MONDAY AND TUESDAY...SNOW MAY RETURN TO WESTERN MOUNTAINS AND
VALLEYS. RAIN CHANGING TO SNOW WILL BE POSSIBLE MONDAY AFTERNOON FOR
THE WESTERN VALLEYS.  WINDS WILL INCREASE EAST OF THE CONTINENTAL
DIVIDE WITH HIGH WINDS POSSIBLE IN PARK COUNTY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY OR TONIGHT.

TEAM RIVERTON