Winter Weather Warnings / Watches / Advisories
Issued by NWS Riverton, WY

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WWUS45 KRIW 220437
WSWRIW

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
937 PM MST SAT FEB 21 2015

...SIGNIFICANT SNOWFALL OVER THE AREA WILL GRADUALLY END TONIGHT
FROM NORTH TO SOUTH...

.A WINTER STORM SYSTEM WILL GRADUALLY COME TO AN END FROM NORTH
TO SOUTH TONIGHT. THE HEAVIEST SNOWFALL WILL OCCUR BEFORE
MIDNIGHT...BEFORE GRADUALLY TAPERING TO VERY LIGHT SNOW OR
FLURRIES.

WYZ008-009-220545-
/O.CAN.KRIW.WS.W.0004.000000T0000Z-150222T1200Z/
BIGHORN MOUNTAINS WEST-BIGHORN MOUNTAINS SOUTHEAST-
937 PM MST SAT FEB 21 2015

...WINTER STORM WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN RIVERTON HAS CANCELLED THE WINTER
STORM WARNING. ADDITIONAL SNOWFALL WILL BE LESS THAN AN INCH...AND
WINDS HAVE WEAKENED WITH LITTLE OR NO BLOWING SNOW.

$$

WYZ005>007-010>012-023-220545-
/O.CAN.KRIW.WW.Y.0010.000000T0000Z-150222T1200Z/
SOUTHWEST BIG HORN BASIN-SOUTHEAST BIG HORN BASIN-
OWL CREEK AND BRIDGER MOUNTAINS-NORTHEAST JOHNSON COUNTY-
SOUTHEAST JOHNSON COUNTY-TETON AND GROS VENTRE MOUNTAINS-
STAR VALLEY-
INCLUDING THE CITIES OF...THERMOPOLIS...WORLAND...BUFFALO...
KAYCEE...AFTON...ALPINE...STAR VALLEY RANCH...THAYNE
937 PM MST SAT FEB 21 2015

...WINTER WEATHER ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN RIVERTON HAS CANCELLED THE WINTER
WEATHER ADVISORY. ADDITIONAL SNOWFALL WILL BE LESS THAN AN INCH...AND
WINDS HAVE WEAKENED WITH LITTLE OR NO BLOWING SNOW EXPECTED.

$$

WYZ015-221200-
/O.CON.KRIW.WS.W.0004.000000T0000Z-150222T1200Z/
WIND RIVER MOUNTAINS EAST-
937 PM MST SAT FEB 21 2015

...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...WILL
  CONTINUE ACROSS THE EASTERN SLOPES OF THE WIND RIVER MOUNTAINS
  INCLUDING SOUTH PASS. THE HEAVIEST SNOWFALL IS EXPECTED TO OCCUR
  THROUGH MIDNIGHT...BEFORE TAPERING OFF TO LIGHT SNOW OR
  FLURRIES AFTER MIDNIGHT.

* SNOW ACCUMULATIONS...TOTAL ACCUMULATIONS OF 10 TO 22 INCHES...
  WITH HIGHEST ACCUMULATIONS OVER NORTH FACING SLOPES ABOVE 8000
  FEET.

* WIND AND VISIBILITY...NORTHEAST WINDS OF 15 TO 25 MPH. THIS
  WIND COMBINED WITH HEAVIER SNOW WILL REDUCE VISIBILITY TO NEAR
  WHITEOUT CONDITIONS.

* IMPACTS...ROADS WILL BE SNOW PACKED AND HAZARDOUS WITH SOME
  SIGNIFICANT DRIFTING OF SNOW...MAKING TRAVEL NEARLY IMPOSSIBLE
  AT TIMES 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.

&&

$$

WYZ018-221200-
/O.CON.KRIW.WS.W.0004.000000T0000Z-150222T1200Z/
LANDER FOOTHILLS-
INCLUDING THE CITY OF...LANDER
937 PM MST SAT FEB 21 2015

...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 SNOWFALL...MODERATE AT
  TIMES...ARE EXPECTED THROUGH MIDNIGHT...BEFORE TAPERING TO VERY
  LIGHT SNOW OR FLURRIES AFTER MIDNIGHT.

* SNOW ACCUMULATIONS...AS OF 6 PM...4 TO 6 INCHES IN LANDER...WITH
  OVER A FOOT OF SNOW IN SINKS CANYON. AN ADDITIONAL 1 TO 2 INCHES
  IS EXPECTED OVERNIGHT.

* WIND AND VISIBILITY...NORTHERLY WINDS OF 10 TO 20 MPH. THIS
  WIND COMBINED WITH HEAVIER SNOW WILL REDUCE VISIBILITY TO
  UNDER A QUARTER OF A MILE AT TIMES.

* IMPACTS...ROADS WILL REMAIN EXTREMELY SLICK AND HAZARDOUS
  TONIGHT...ESPECIALLY OUTSIDE OF LANDER.

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.

&&

$$

WYZ016-017-221200-
/O.CON.KRIW.WW.Y.0010.000000T0000Z-150222T1200Z/
UPPER WIND RIVER BASIN-WIND RIVER BASIN-
INCLUDING THE CITIES OF...DUBOIS...RIVERTON...SHOSHONI
937 PM MST SAT FEB 21 2015

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST
SUNDAY...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST
SUNDAY.

* SUMMARY AND TIMING...PERIODS OF SNOWFALL...MODERATE AT TIMES...
   ARE EXPECTED THIS EVENING...BEFORE TAPERING TO VERY LIGHT
  SNOW OR FLURRIES AFTER MIDNIGHT.

* SNOW ACCUMULATIONS...AS OF 6 PM...2 TO 4 INCHES HAVE ACCUMULATED.
  AN ADDITIONAL 1 TO 2 INCHES IS EXPECTED OVERNIGHT.

* WIND AND VISIBILITY...NORTHERLY WINDS BETWEEN 10 AND 20 MPH...
  WHEN COMBINED WITH HEAVIER SNOW WILL REDUCE VISIBILITY TO A
  QUARTER OF A MILE AT TIMES.

* IMPACTS...ROADS WILL REMAIN SLICK AND HAZARDOUS TONIGHT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING
SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY
ROADS AND LIMITED VISIBILITY...AND USE CAUTION WHILE DRIVING.

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.

&&

$$

WYZ020-022-221200-
/O.CON.KRIW.WW.Y.0010.000000T0000Z-150222T1200Z/
NATRONA COUNTY LOWER ELEVATIONS-CASPER MOUNTAIN-
INCLUDING THE CITY OF...CASPER
937 PM MST SAT FEB 21 2015

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST
SUNDAY...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST
SUNDAY.

* SUMMARY AND TIMING...LIGHT SNOWFALL IS EXPECTED FOR THE
  REMAINDER OF THE EVENING...BEFORE TAPERING TO FLURRIES AFTER
  MIDNIGHT.

* SNOW ACCUMULATIONS...3 TO 5 INCHES HAS ACCUMULATED SO FAR
  ACROSS MUCH OF THE LOWER ELEVATIONS OF NATRONA COUNTY. AN
  ADDITIONAL INCH OF SNOW IS EXPECTED OVERNIGHT.

* WIND AND VISIBILITY...NORTHERLY WINDS OF 10 TO 20 MPH...WHEN
  COMBINED WITH SNOW WILL REDUCE VISIBILITY TO A HALF A MILE AT
  TIMES.

* IMPACTS...ROADS WILL REMAIN SLICK AND HAZARDOUS TONIGHT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING
SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY
ROADS AND LIMITED VISIBILITY...AND USE CAUTION WHILE DRIVING.

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.

&&

$$

WYZ019-221200-
/O.CON.KRIW.WW.Y.0010.000000T0000Z-150222T1200Z/
GREEN MOUNTAINS AND RATTLESNAKE RANGE-
INCLUDING THE CITY OF...JEFFREY CITY
937 PM MST SAT FEB 21 2015

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST
SUNDAY...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST
SUNDAY.

* SUMMARY AND TIMING...PERIODS OF SNOWFALL...MODERATE AT TIMES...ARE
  EXPECTED THIS EVENING...BEFORE TAPERING TO VERY LIGHT SNOW OR
  FLURRIES AFTER MIDNIGHT.

* SNOW ACCUMULATIONS...TOTAL ACCUMULATIONS OF 3 TO 5 INCHES WITH
  LOCALLY 10 INCHES POSSIBLE.

* WIND AND VISIBILITY...NORTHERLY WINDS OF 10 TO 25 MPH...WHEN
  COMBINED WITH HEAVIER SNOW WILL REDUCE VISIBILITY TO LESS THAN
  A QUARTER OF A MILE AT TIMES.

* IMPACTS...ROADS WILL BE SNOW PACKED WITH SOME DRIFTING...
  MAKING TRAVEL HAZARDOUS AT TIMES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING
SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY
ROADS AND LIMITED VISIBILITY...AND USE CAUTION WHILE DRIVING.

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.

&&

$$

WYZ030-221200-
/O.CON.KRIW.WW.Y.0010.000000T0000Z-150222T1200Z/
EAST SWEETWATER COUNTY-
INCLUDING THE CITY OF...WAMSUTTER
937 PM MST SAT FEB 21 2015

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST
SUNDAY...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST
SUNDAY.

* SUMMARY AND TIMING...PERIODS OF LIGHT SNOW AND AREAS OF BLOWING
  SNOW WILL CONTINUE TONIGHT.

* SNOW ACCUMULATIONS...TOTAL ACCUMULATIONS OF 2 TO 5 INCHES.

* WIND AND VISIBILITY...NORTHEASTERLY WINDS OF 15 TO 25 MPH...
  WHEN COMBINED WITH SNOWFALL WILL REDUCE VISIBILITY TO UNDER A
  QUARTER OF A MILE.

* IMPACTS...ROADS WILL BE SNOW PACKED WITH SOME DRIFTING... MAKING
  TRAVEL HAZARDOUS AT TIMES...INCLUDING ALONG INTERSTATE 80. AS OF
  940 PM...INTERSTATE 80 BETWEEN EVANSTON AND LITTLE AMERICA
  REMAINS CLOSED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING
SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY
ROADS AND LIMITED VISIBILITY...AND USE CAUTION WHILE DRIVING.

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.

&&

$$

WYZ014-025-026-221200-
/O.CON.KRIW.WW.Y.0010.000000T0000Z-150222T1200Z/
WIND RIVER MOUNTAINS WEST-UPPER GREEN RIVER BASIN FOOTHILLS-
UPPER GREEN RIVER BASIN-
INCLUDING THE CITIES OF...PINEDALE...LA BARGE...BIG PINEY...
FARSON
937 PM MST SAT FEB 21 2015

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST
SUNDAY...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST
SUNDAY.

* SUMMARY AND TIMING...PERIODS OF LIGHT SNOW THROUGH
  MIDNIGHT...THEN TAPERING OFF THROUGH THE REMAINDER OF THE NIGHT.

* SNOW ACCUMULATIONS...2 TO 4 INCHES OVER THE UPPER GREEN RIVER
  BASIN WITH THE HIGHEST TOTALS ALONG AND SOUTH OF A BIG PINEY
  TO PINEDALE LINE. ISOLATED 6 TO 8 INCHES OVER THE HIGHER
  ELEVATIONS OF WIND RIVER MOUNTAINS...AND AREAS CLOSE TO
  ATLANTIC CITY AND SOUTH PASS CITY.

* WIND AND VISIBILITY...NORTHEAST WINDS OF 15 TO 25 MPH...WHEN
  COMBINED WITH SNOW WILL REDUCE VISIBILITY TO UNDER A TENTH OF
  A MILE. THE STRONGEST WINDS AND THE MOST REDUCED VISIBILITY
  WILL OCCUR OVER SOUTH PASS...ESPECIALLY NEAR ATLANTIC CITY AND
  SOUTH PASS CITY.

* IMPACTS...ROADS WILL BE SLICK AND HAZARDOUS...INCLUDING SOUTH
  PASS AND OTHER ROADS ACROSS THE UPPER GREEN RIVER BASIN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING
SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY
ROADS AND LIMITED VISIBILITY...AND USE CAUTION WHILE DRIVING.

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>029-221200-
/O.CON.KRIW.WW.Y.0010.000000T0000Z-150222T1200Z/
SOUTH LINCOLN COUNTY-ROCK SPRINGS AND GREEN RIVER-FLAMING GORGE-
INCLUDING THE CITIES OF...KEMMERER...COKEVILLE...ROCK SPRINGS...
GREEN RIVER
937 PM MST SAT FEB 21 2015

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST
SUNDAY...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST
SUNDAY.

* SUMMARY AND TIMING...PERIODS OF LIGHT SNOW AND AREAS OF BLOWING
  SNOW FOR THE REMAINDER OF TONIGHT.

* TOTAL SNOW ACCUMULATIONS...1 TO 3 INCHES.

* WIND AND VISIBILITY...NORTHEAST TO EAST WINDS OF 15 TO 25
  MPH...WHEN COMBINED WITH SNOW...WILL REDUCE VISIBILITY TO
  UNDER A QUARTER OF A MILE.

* IMPACTS...ROADS WILL BE SLICK AND HAZARDOUS. AS OF 940 PM...
  INTERSTATE 80 WAS CLOSED BETWEEN EVANSTON AND LITTLE AMERICA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING
SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY
ROADS AND LIMITED VISIBILITY...AND USE CAUTION WHILE DRIVING.

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.

&&

$$

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