Wind Chill Warning 3, NWS Riverton, WY

415 
WWUS45 KRIW 020344
WSWRIW

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
844 PM MST SAT MAR 1 2014

...WINTER STORM BEGINNING TO WIND DOWN...

.A MOIST PACIFIC STORM SYSTEM COMBINED WITH ARCTIC AIR FROM THE
NORTH COMBINED TO GIVE MUCH OF THE AREA SIGNIFICANT SNOWFALL
ESPECIALLY OVER THE WESTERN WYOMING. THE STORM SYSTEM WILL
CONTINUE TO GRADUALLY WIND DOWN...BUT BE MOST PERSISTENT ACROSS
WESTERN WYOMING TONIGHT. DANGEROUS WIND CHILLS BETWEEN MINUS
25 AND MINUS 35 DEGREES ARE EXPECTED OVER NORTHERN WYOMING.

WYZ019-020-022-020445-
/O.CAN.KRIW.WS.W.0007.000000T0000Z-140302T0700Z/
GREEN MOUNTAINS AND RATTLESNAKE RANGE-
NATRONA COUNTY LOWER ELEVATIONS-CASPER MOUNTAIN-
INCLUDING THE CITIES OF...JEFFREY CITY...CASPER
844 PM MST SAT MAR 1 2014

...WINTER STORM WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN RIVERTON HAS CANCELLED THE WINTER
STORM WARNING. 

ALTHOUGH THERE WILL BE SOME LIGHT SNOW OVERNIGHT...ADDITIONAL
SNOWFALL WILL BE LESS THAN ONE INCH. HOWEVER IT WILL REMAIN
BITTERLY COLD OVERNIGHT WITH WIND CHILLS BETWEEN 15 BELOW AND 25
BELOW. PLEASE BUNDLE UP AND STAY OUT OF THE WIND AS MUCH AS POSSIBLE.

$$

WYZ001-002-020445-
/O.CAN.KRIW.WS.W.0007.000000T0000Z-140302T1200Z/
YELLOWSTONE NATIONAL PARK-ABSAROKA MOUNTAINS-
INCLUDING THE CITIES OF...LAKE...MAMMOTH...OLD FAITHFUL
844 PM MST SAT MAR 1 2014

...WINTER STORM WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN RIVERTON HAS CANCELLED THE WINTER
STORM WARNING. ADDITIONAL SNOWFALL ACCUMULATIONS OVER YELLOWSTONE
AND THE ABSAROKA MOUNTAINS ARE EXPECTED TO AN INCH OR LESS. THE
EXCEPTION IS ANOTHER 2 TO 4 INCHES COULD OCCUR IN THE EXTREME
SOUTHERN ABSAROKA RANGE NEAR TOGWOTEE PASS.

$$

WYZ012-013-021200-
/O.CON.KRIW.WS.W.0007.000000T0000Z-140302T1200Z/
TETON AND GROS VENTRE MOUNTAINS-JACKSON HOLE-
INCLUDING THE CITY OF...JACKSON
844 PM MST SAT MAR 1 2014

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST SUNDAY...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST SUNDAY. 

* SUMMARY AND TIMING...PERIODS OF SNOW...HEAVY AT TIMES. SNOW 
  WILL TAPER OFF AFTER MIDNIGHT. 

* OBSERVED SNOW ACCUMULATIONS SINCE THURSDAY NIGHT...6 TO 12 INCHES
  ACROSS JACKSON HOLE. 1 TO 2 FEET IN THE MOUNTAINS WITH ISOLATED
  LOCATIONS NEAR 40 INCHES.

* ADDITIONAL SNOW ACCUMULATIONS...1 TO 3 INCHES IN THE LOWER
  ELEVATIONS AND 3 TO 6 INCHES IN THE MOUNTAINS.

* VISIBILITY...UNDER ONE QUARTER MILE AT TIMES.

* IMPACTS...TRAVEL WILL BE SEVERELY HAMPERED BY SNOW PACKED ROADS.
  CHECK WITH WYDOT FOR ANY ROAD CLOSURES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING.  SIGNIFICANT AMOUNTS OF
SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN
AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...
FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

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.

&&

$$

WYZ023-024-021200-
/O.CON.KRIW.WS.W.0007.000000T0000Z-140302T1200Z/
STAR VALLEY-SALT RIVER AND WYOMING RANGES-
INCLUDING THE CITIES OF...AFTON...ALPINE...STAR VALLEY RANCH...
THAYNE
844 PM MST SAT MAR 1 2014

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST SUNDAY...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST SUNDAY. 

* SUMMARY AND TIMING...PERIODS OF SNOW...MODERATE AT TIMES. SNOW
  WILL TAPER OFF AFTER MIDNIGHT.

* TOTAL SNOW ACCUMULATIONS...6 TO 12 INCHES IN THE STAR VALLEY
  WITH 15 TO 30 INCHES IN THE MOUNTAINS WITH LOCALLY HIGHER
  AMOUNTS.

* VISIBILITY...UNDER A HALF A MILE AT TIMES IN THE MOUNTAINS...AND
  UNDER A MILE AT TIMES IN STAR VALLEY.

* IMPACTS...ROADS WILL BE SLICK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING.  SIGNIFICANT AMOUNTS OF
SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN
AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...
FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

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.

&&

$$

WYZ025-021200-
/O.CON.KRIW.WS.W.0007.000000T0000Z-140302T1200Z/
UPPER GREEN RIVER BASIN FOOTHILLS-
INCLUDING THE CITY OF...PINEDALE
844 PM MST SAT MAR 1 2014

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST SUNDAY...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST SUNDAY. 

* SUMMARY AND TIMING...PERIODS OF SNOW...MODERATE AT TIMES MAINLY
  NEAR BONDURANT. SNOW TAPERING OFF AFTER MIDNIGHT.

* OBSERVED SNOW ACCUMULATIONS SINCE THURSDAY NIGHT...5 TO 6 INCHES
  NEAR PINEDALE AND JUST OVER A FOOT AT BONDURANT.

* ADDITIONAL SNOW ACCUMULATIONS...LESS THAN ONE INCH NEAR
  PINEDALE...AND 2 TO 4 INCHES NEAR BONDURANT.

* VISIBILITY...NEAR A HALF A MILE AT TIMES NEAR BONDURANT.

* IMPACTS...TRAVEL WILL BE SEVERELY HAMPERED ESPECIALLY NORTHWEST
  OF PINEDALE ESPECIALLY AROUND BONDURANT TO HOBACK JUNCTION.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING.  SIGNIFICANT AMOUNTS OF
SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN
AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...
FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

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.

&&

$$

WYZ014-015-021200-
/O.CON.KRIW.WS.W.0007.000000T0000Z-140302T1200Z/
WIND RIVER MOUNTAINS WEST-WIND RIVER MOUNTAINS EAST-
844 PM MST SAT MAR 1 2014

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST SUNDAY...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST SUNDAY. 

* SUMMARY AND TIMING...PERIODS OF SNOW...MODERATE AT TIMES.
  SNOWFALL TAPERING OFF AFTER MIDNIGHT.

* SNOW ACCUMULATIONS...15 TO 30 INCHES WITH LOCALLY HIGHER 
  AMOUNTS. 

* VISIBILITY...HALF OF A MILE AT TIMES.

* IMPACTS...TRAVEL WILL BE SEVERELY HAMPERED BY THE SNOW OVER
  SOUTH PASS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING.  SIGNIFICANT AMOUNTS OF
SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN
AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...
FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

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.

&&

$$

WYZ016-021200-
/O.CON.KRIW.WS.W.0007.000000T0000Z-140302T1200Z/
UPPER WIND RIVER BASIN-
INCLUDING THE CITY OF...DUBOIS
844 PM MST SAT MAR 1 2014

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST SUNDAY...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST SUNDAY. 

* SUMMARY AND TIMING...PERIODS OF SNOW...TAPERING OFF AFTER 
  MIDNIGHT. 

* OBSERVED SNOW ACCUMULATIONS SINCE THURSDAY NIGHT...5 TO 10
  INCHES NEAR DUBOIS...WITH MUCH LESS NEAR CROWHEART.

* ADDITIONAL SNOW ACCUMULATIONS...1 TO 2 INCHES.

* IMPACTS...ROADS WILL BE SNOW COVERED AND SLICK CREATING 
  HAZARDOUS TRAVEL. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING.  SIGNIFICANT AMOUNTS OF
SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN
AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...
FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

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.

&&

$$

WYZ027-021200-
/O.CON.KRIW.WS.W.0007.000000T0000Z-140302T1200Z/
SOUTH LINCOLN COUNTY-
INCLUDING THE CITIES OF...KEMMERER...COKEVILLE
844 PM MST SAT MAR 1 2014

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST SUNDAY...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST SUNDAY. 

* SUMMARY AND TIMING...PERIODS OF SNOW...TAPERING OFF AFTER
  MIDNIGHT. 

* SNOW ACCUMULATIONS...3 TO 5 INCHES EAST OF THE BEAR RIVER 
  DIVIDE INCLUDING KEMMERER WITH 4 TO 8 INCHES WEST OF THE 
  DIVIDE INCLUDING COKEVILLE. 

* WIND AND VISIBILITY...WEST 25 TO 35 MPH WITH GUSTS TO 45 MPH 
  CREATING VISIBILITIES UNDER ONE HALF MILE AT TIMES. 

* IMPACTS...ROADS COULD BECOME SLICK AGAIN TONIGHT AS SOME
  HEAVIER SNOW IMPACTS SOUTHERN LINCOLN COUNTY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING.  SIGNIFICANT AMOUNTS OF
SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN
AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...
FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

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.

&&

$$

WYZ003-004-010-011-020700-
/O.CON.KRIW.WC.W.0003.000000T0000Z-140302T0700Z/
CODY FOOTHILLS-NORTH BIG HORN BASIN-NORTHEAST JOHNSON COUNTY-
SOUTHEAST JOHNSON COUNTY-
INCLUDING THE CITIES OF...CODY...MEETEETSE...POWELL...LOVELL...
GREYBULL...BASIN...BUFFALO...KAYCEE
844 PM MST SAT MAR 1 2014

...WIND CHILL WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MST
TONIGHT...

A WIND CHILL WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MST
TONIGHT. 

* SUMMARY AND TIMING...ALTHOUGH PERIODS OF LIGHT SNOW WILL OCCUR 
  THIS EVENING...THE MAIN HAZARD WILL BE THE DANGEROUSLY COLD 
  WIND CHILLS BETWEEN 25 BELOW AND 35 BELOW ZERO THROUGH 
  MIDNIGHT. WINDS AFTER MIDNIGHT ARE EXPECTED TO DECREASE TO 5 
  MPH OR LESS. 

* IMPACTS...ROADS WILL REMAIN SLICK. FROSTBITE CAN OCCUR IN ABOUT
  15 MINUTES AT THESE DANGEROUS WIND CHILL VALUES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND CHILL WARNING MEANS THE COMBINATION OF VERY COLD AIR AND
WIND WILL CREATE DANGEROUSLY LOW WIND CHILL VALUES. THIS WILL
RESULT IN FROST BITE AND LEAD TO HYPOTHERMIA OR DEATH IF
PRECAUTIONS ARE NOT TAKEN. THE MOST SUSCEPTIBLE PARTS OF THE BODY
ARE THE EXTREMITIES...SUCH AS FINGERS...OR THE TIP OF THE NOSE.
IF YOU MUST GO OUTSIDE...TRY TO STAY OUT OF THE WIND...AND DRESS
IN SEVERAL LAYERS OF LOOSE FITTING...LIGHTWEIGHT...WARM CLOTHING.

&&

$$

TEAM RIVERTON/21

075 
WWUS45 KRIW 020606
WSWRIW

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
1106 PM MST SAT MAR 1 2014

...WINTER STORM COMING TO AN END...

WYZ014>016-023>025-027-020715-
/O.CAN.KRIW.WS.W.0007.000000T0000Z-140302T1200Z/
WIND RIVER MOUNTAINS WEST-WIND RIVER MOUNTAINS EAST-
UPPER WIND RIVER BASIN-STAR VALLEY-SALT RIVER AND WYOMING RANGES-
UPPER GREEN RIVER BASIN FOOTHILLS-SOUTH LINCOLN COUNTY-
INCLUDING THE CITIES OF...DUBOIS...AFTON...ALPINE...
STAR VALLEY RANCH...THAYNE...PINEDALE...KEMMERER...COKEVILLE
1106 PM MST SAT MAR 1 2014

...WINTER STORM WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN RIVERTON HAS CANCELLED THE WINTER
STORM WARNING. SNOWFALL WILL CONTINUE TO DECREASE IN COVERAGE AND
INTENSITY...WITH ADDITIONAL SNOWFALL LESS THAN AN INCH.

$$

WYZ003-004-010-011-020715-
/O.CAN.KRIW.WC.W.0003.000000T0000Z-140302T0700Z/
CODY FOOTHILLS-NORTH BIG HORN BASIN-NORTHEAST JOHNSON COUNTY-
SOUTHEAST JOHNSON COUNTY-
INCLUDING THE CITIES OF...CODY...MEETEETSE...POWELL...LOVELL...
GREYBULL...BASIN...BUFFALO...KAYCEE
1106 PM MST SAT MAR 1 2014

...WIND CHILL WARNING IS CANCELLED...

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

WINDS HAVE DECREASED TO ABOUT 5 MPH. HOWEVER ACTUAL TEMPERATURES
AND...OR WIND CHILLS WILL RANGE BETWEEN 10 BELOW TO 25 BELOW ZERO.

$$

WYZ012-013-021200-
/O.CON.KRIW.WS.W.0007.000000T0000Z-140302T1200Z/
TETON AND GROS VENTRE MOUNTAINS-JACKSON HOLE-
INCLUDING THE CITY OF...JACKSON
1106 PM MST SAT MAR 1 2014

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST SUNDAY...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST SUNDAY. 

* SUMMARY AND TIMING...PERIODS OF SNOW...MODERATE AT TIMES. SNOW
  WILL TAPER OFF AFTER MIDNIGHT...BUT SOME LIGHT SNOW WILL
  CONTINUE INTO THE DAY SUNDAY ESPECIALLY OVER THE MOUNTAINS.

* OBSERVED SNOW ACCUMULATIONS SINCE THURSDAY NIGHT...6 TO 12 
  INCHES ACROSS JACKSON HOLE. 1 TO 2 FEET IN THE MOUNTAINS WITH 
  ISOLATED LOCATIONS NEAR 40 INCHES. 

* ADDITIONAL SNOW ACCUMULATIONS...1 TO 2 INCHES IN THE LOWER
  ELEVATIONS AND 2 TO 4 INCHES IN THE MOUNTAINS.

* VISIBILITY...UNDER ONE QUARTER MILE AT TIMES.

* IMPACTS...TRAVEL WILL BE SEVERELY HAMPERED BY SNOW PACKED 
  ROADS. CHECK WITH WYDOT FOR ANY ROAD CLOSURES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING.  SIGNIFICANT AMOUNTS OF
SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN
AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...
FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

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.

&&

$$

TEAM RIVERTON/21

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE RIVERTON WY
151 PM MST SAT MAR 1 2014

.SHORT TERM...TONIGHT THROUGH SUNDAY

SNOWFALL HAS CONTINUED TO BE MOST IMPRESSIVE OVER THE WEST AND
SPOTTY IN THE EAST IN THE VERY COLD AIR.  PORTIONS OF THE TETONS
HAVE RECEIVED 30 TO 35 INCHES OF SNOW.  TEMPERATURES EAST OF THE
CONTINENTAL DIVIDE HAVE HOVERED IN THE SINGLE DIGITS ABOVE ZERO
TO THE SINGLE DIGITS BELOW ZERO TODAY AND WILL DROP TO 10 BELOW
TO LOCALLY 20 BELOW ZERO IN THE NORTH TONIGHT.  CLOUD COVER...FLURRIES
TO LIGHT SNOW AND FOG WILL KEEP TEMPERATURES FROM FALLING BELOW
20 BELOW ZERO. HOWEVER BRISK NORTHEAST WINDS WILL PRODUCE WIND
CHILLS OF 25 BELOW TO 35 BELOW ZERO. WILL LET WINTER WEATHER HIGHLIGHTS
GO THROUGH 5 AM. SNOWFALL WILL CONTINUE TO BE MORE LOCALIZED IN
THE EAST AND MORE CONSISTENT IN THE WESTERN MOUNTAINS. THE WEST
WILL CONTINUE TO SEE SOME LIGHT SNOW THROUGH SUNDAY WHILE THE EAST
SHOULD SEE AN END TO THE SNOW OUTSIDE OF THE MOUNTAINS...BUT
TEMPERATURES  WILL CONTINUE TO BE VERY COLD WITH THE ARCTIC AIR
REMAINING,

.LONG TERM...SUNDAY NIGHT THROUGH SATURDAY

MOST OF THE SNOW BONANZA SHOULD BE OVER WITH BY SUNDAY NIGHT BUT THE
LIKELIHOOD OF SNOWFALL WILL CONTINUE AT LESSER INTENSITY OVER
WESTERN WYOMING AS A FLAT RIDGE BUILDS INTO THE AREA BUT WITH THE
STRONG MOIST FLOW CONTINUING TO FEED IN OFF THE PACIFIC. THIS LIGHTER
SNOWFALL WILL CONTINUE THROUGH MONDAY AND MONDAY NIGHT. THEN ON
TUESDAY...THE NEXT SHORTWAVE TROUGH WILL STREAM THROUGH WITHIN THE
FAST WEST NORTHWEST FLOW PROVIDING AN INCREASE IN SNOWFALL COVERAGE
AND INTENSITY BY TUESDAY AND TUESDAY NIGHT IN THE WEST WITH AN
ASSOCIATED SURFACE LOW TRACKING SOUTHEAST ACROSS NE WY PUSHING SOME
OF THE PRECIP TO THE EAST OF THE DIVIDE. THIS FRONT COULD RESULT IN
SOME QUICK MODERATE TO HEAVY SNOW BURSTS OUT WEST WITH NEGATIVE
LIFTED INDICES PROGGED FOR AREAS WEST OF THE DIVIDE. THEN A RESPITE
FROM THE SIGNIFICANT SNOWFALL WEDNESDAY IN THE WEST AS ANOTHER FLAT
RIDGE BUILDS INTO THE AREA. THEN A MORE ROBUST SHORTWAVE TROUGH IS
SLATED TO PARADE ACROSS THE AREA THURSDAY FOR MORE PRECIP WEST OF
THE DIVIDE. NEGATIVE LIFTED INDICES ARE AGAIN EXPECTED IN NW WY WITH
THIS FEATURE. THIS WEATHER SYSTEM WILL BE WARMER THAN THE ONE ON
TUESDAY WITH MIXED PRECIP EXPECTED OUT WEST AS H7 TEMPS WARM TO -3C.
THIS WEATHER SYSTEM IS EXPECTED TO DELIVER A BETTER SHOT OP PRECIP
TO AREAS EAST OF THE DIVIDE WITH MOST OF THE PRECIP OCCURRING OVER
CENTRAL AND SOUTHERN WY. ANOTHER FLAT RIDGE FOR FRIDAY NIGHT BEFORE
ANOTHER VIGOROUS SHORTWAVE TROUGH DELVERS YET ANOTHER SHOT OF PRECIP
TO THE WEST SATURDAY AND SATURDAY NIGHT. A DRAMATIC WARM UP IS
EXPECTED MONDAY...ESPECIALLY ACROSS THE NORTHERN AND EASTERN ZONES
EAST OF THE DIVIDE WHERE THE ARCTIC AIR IS PRESENTLY MOST
ENTRENCHED. WE ARE GETTING INTO THE TIME OF THE YEAR WHEN BASIN
INVERSIONS ARE NOT AS STAGNANT WITH THE ELEVATING SUN ANGLE.
OTHERWISE EXPECT A GENERAL GRADUAL WARMING TREND THROUGHOUT THE REST
OF THE WEEK IN MOST AREAS.

&&

.AVIATION.../XXZ ISSUANCE/

WIDESPREAD MVFR/LOW VFR CEILINGS...WITH PERIODS OF MVFR/IFR VSBY IN
SNOW ACROSS THE ENTIRE LOWER ELEVATIONS THROUGH 18Z. THE HEAVIEST
AND MOST WIDESPREAD SNOWFALL IS EXPECTED THROUGH 12Z. MOUNTAINS
WILL REMAIN OBSCURED...WITH LIFR CONDITIONS IN SNOW AND LOW CLOUDS
OVER MOUNTAIN PASSES. PARTIAL CLEARING WILL OCCUR AFTER 18Z...
ESPECIALLY EAST OF THE CONTINENTAL DIVIDE.

&&

.FIRE WEATHER...

NO FIRE WEATHER CONCERNS EXPECTED WITH WIDESPREAD SNOWFALL AND
COLD AIR THROUGH TONIGHT. WINTER STORM WARNINGS ACROSS THE AREA EXCEPT
FOR SWEETWATER AND LOWER ELEVATIONS OF SUBLETTE COUNTIES. LOW
MIXING HEIGHTS WITH POOR SMOKE DISPERSAL EXPECTED. SIGNIFICANT
SNOWFALL EXPECTED MOST AREAS. DRIER WEATHER WILL RETURN EAST OF
THE DIVIDE ON SUNDAY BUT TEMPERATURES WILL REMAIN VERY COLD.

&&

.RIW WATCHES/WARNINGS/ADVISORIES...
WINTER STORM WARNING UNTIL 5 AM MST SUNDAY
WYZ001>020-022>025-027.

WINTER WEATHER ADVISORY UNTIL 5 AM MST SUNDAY WYZ026.

&&

SHORT TERM...C.BAKER
LONG TERM...LIPSON
AVIATION...C.BAKER
FIRE WEATHER...C.BAKER

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE RIVERTON WY
248 AM MST SAT MAR 1 2014

WYZ001>020-022>030-021230-
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-
248 AM MST SAT MAR 1 2014

...WINTER STORM WARNING FOR MOST OF WESTERN AND NORTHERN WYOMING
THROUGH TONIGHT...

...WINTER WEATHER ADVISORY FOR THE UPPER GREEN RIVER BASIN THROUGH
SATURDAY NIGHT...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN AND CENTRAL WYOMING.

.DAY ONE...TODAY AND TONIGHT

PERIODS OF SNOW WILL CONTINUE INTO THE NIGHT...WITH THE HEAVIEST
SNOW EXPECTED THROUGH MIDDAY SATURDAY. PLEASE SEE WINTER WEATHER
PRODUCTS AND FORECASTS FOR DETAILS. TEMPERATURES WILL BE WELL BELOW
NORMAL EAST OF THE CONTINENTAL DIVIDE. EXPECT TRAVEL TO BE
IMPACTED...AS WELL AS MORE VULNERABLE YOUNG LIVESTOCK. IN ADDITION...
THERE IS AN INCREASED LIKELIHOOD OF AVALANCHES DUE TO THE RECENT
HEAVY SNOW AND STRONG WIND.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

MONDAY AND TUESDAY...LIGHT TO MODERATE SNOW ACROSS THE WESTERN
MOUNTAINS AGAIN.

THURSDAY AND FRIDAY...ANOTHER STORM SYSTEM COULD BRING SNOW TO
BOTH SIDES OF THE DIVIDE.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS ARE URGED TO REPORT SNOWFALL AMOUNTS. THANK YOU.

TEAM RIVERTON