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

Current Version | Previous Version | Text Only | Print | Product List | Glossary Off
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37

000
WWUS45 KRIW 220402
WSWRIW

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
902 PM MST FRI NOV 21 2014

...SNOW AND BLOWING SNOW ACROSS THE WESTERN MOUNTAINS AND VALLEYS
SATURDAY AND SATURDAY NIGHT...

.SNOW WILL INCREASE ACROSS WESTERN WYOMING AHEAD OF AN APPROACHING
COLD FRONT SATURDAY MORNING. THE COLD FRONT WILL PUSH ACROSS
WESTERN WYOMING SATURDAY AFTERNOON ACCOMPANIED BY MODERATE TO
HEAVY SNOWFALL AND STRONG RIDGE TOP WINDS. NUMEROUS SNOW SHOWERS
WILL PERSIST BEHIND THE FRONT SATURDAY NIGHT ALONG WITH GUSTY
NORTHWEST WIND AT RIDGE TOP LEVEL CAUSING AREAS OF BLOWING AND
DRIFTING SNOW.

WYZ001-002-221215-
/O.CON.KRIW.WS.W.0013.141122T0700Z-141123T1300Z/
YELLOWSTONE NATIONAL PARK-ABSAROKA MOUNTAINS-
INCLUDING THE CITIES OF...LAKE...MAMMOTH...OLD FAITHFUL
902 PM MST FRI NOV 21 2014

...WINTER STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT
TO 6 AM MST SUNDAY...

A WINTER STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO
6 AM MST SUNDAY.

* SUMMARY AND TIMING...LIGHT SNOW WILL BEGIN TO FALL TONIGHT.
  SNOWFALL WILL BECOME MODERATE TO HEAVY IN INTENSITY ON SATURDAY
  WITH THE HEAVIEST SNOW EXPECTED SATURDAY AFTERNOON. SNOW WILL
  START TO TAPER OFF LATE SATURDAY NIGHT.

* SNOW ACCUMULATIONS...10 TO 20 INCHES.

* WIND AND VISIBILITY...WEST WINDS 30 TO 40 MPH WITH GUSTS TO OVER
  60 MPH AT RIDGE TOP LEVEL DURING THE DAY SATURDAY. VISIBILITY OF
  ONE-QUARTER MILE OR LESS...WITH NEAR WHITEOUT CONDITIONS AT
  TIMES SATURDAY AFTERNOON IN BLOWING SNOW.

* IMPACTS...HEAVY SNOW...BRISK WIND AND BLOWING SNOW MAY LEAD TO
  VERY DIFFICULT TRAVEL ACROSS THE WESTERN MOUNTAINS AND VALLEYS
  THIS WEEKEND...AS WELL AS INCREASE THE AVALANCHE DANGER...
  PLEASE VISIT WWW.JHAVALANCHE.ORG BEFORE VENTURING OUT INTO THE
  BACK COUNTRY THIS WEEKEND. COOLER TEMPERATURES AND STRONG
  WINDS WILL ALSO CAUSE WIND CHILLS TO DROP TO DANGEROUS LEVELS.

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.

&&

$$

WYZ012-013-023-221215-
/O.CON.KRIW.WS.W.0013.141122T0700Z-141123T1300Z/
TETON AND GROS VENTRE MOUNTAINS-JACKSON HOLE-STAR VALLEY-
INCLUDING THE CITIES OF...JACKSON...AFTON...ALPINE...
STAR VALLEY RANCH...THAYNE
902 PM MST FRI NOV 21 2014

...WINTER STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT
TO 6 AM MST SUNDAY...

A WINTER STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO
6 AM MST SUNDAY.

* SUMMARY AND TIMING...LIGHT SNOW WILL BEGIN TO FALL IN THE
  MOUNTAINS LATE TONIGHT...SPREADING INTO THE VALLEYS BY SATURDAY
  MORNING AND BECOMING MODERATE TO HEAVY IN INTENSITY. SNOW WILL
  START TO TAPER OFF LATE SATURDAY EVENING.

* SNOW ACCUMULATIONS...10 TO 20 INCHES IN THE MOUNTAINS. 6 TO 10
  INCHES IN THE VALLEYS.

* WIND AND VISIBILITY...WEST WINDS AT 30 TO 40 MPH WITH GUST TO 60
  MPH AT RIDGE TOP LEVEL. WEST TO SOUTHWEST WIND AT 15 TO 25 MPH
  WITH GUSTS TO 35 MPH ACROSS OPEN AREAS BELOW 7000 FEET ON
  SATURDAY. WINDS WILL SHIFT TO THE NORTHWEST SATURDAY NIGHT AND
  DECREASE OVERALL. EXPECT WIDESPREAD AREAS OF REDUCED VISIBILITY
  IN FALLING AND BLOWING SNOW...ESPECIALLY ON THE PASSES AND NORTH
  OF JACKSON AND WILSON...ACROSS THE TETON VILLAGE AREA AND GRAND
  TETON NATIONAL PARK.

* IMPACTS...HEAVY SNOW...BRISK WIND AND BLOWING SNOW MAY LEAD TO
  VERY DIFFICULT TRAVEL ACROSS THE WESTERN MOUNTAINS AND VALLEYS
  THIS WEEKEND...AS WELL AS INCREASE THE AVALANCHE DANGER...
  PLEASE VISIT WWW.JHAVALANCHE.ORG BEFORE VENTURING OUT INTO THE
  BACK COUNTRY THIS WEEKEND. COOLER TEMPERATURES AND STRONG
  WINDS WILL ALSO CAUSE WIND CHILLS TO DROP TO DANGEROUS LEVELS.

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.

&&

$$

WYZ014-015-024-025-221215-
/O.CON.KRIW.WS.W.0013.141122T0700Z-141123T1300Z/
WIND RIVER MOUNTAINS WEST-WIND RIVER MOUNTAINS EAST-
SALT RIVER AND WYOMING RANGES-UPPER GREEN RIVER BASIN FOOTHILLS-
INCLUDING THE CITY OF...PINEDALE
902 PM MST FRI NOV 21 2014

...WINTER STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT
TO 6 AM MST SUNDAY...

A WINTER STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO
6 AM MST SUNDAY.

* SUMMARY AND TIMING...LIGHT SNOW WILL BEGIN TO FALL IN THE
  MOUNTAINS LATE TONIGHT...SPREADING INTO THE FOOTHILLS BY
  SATURDAY MORNING. SNOWFALL WILL BECOME MODERATE TO HEAVY IN
  INTENSITY. SNOW WILL START TO TAPER OFF AFTER MIDNIGHT.

* SNOW ACCUMULATIONS...10 TO 22 INCHES IN THE MOUNTAINS. 6 TO 10
  INCHES IN THE FOOTHILLS.

* WIND AND VISIBILITY...WEST WINDS AT 30 TO 40 MPH WITH GUSTS NEAR
  60 MPH AT RIDGE TOP LEVEL ON SATURDAY. AREAS OF NORTHWEST WINDS
  20 TO 30 MPH WITH GUSTS NEAR 40 MPH IN THE FOOTHILLS. EXPECT
  WIDESPREAD AREAS OF REDUCED VISIBILITY IN FALLING AND BLOWING
  SNOW...ESPECIALLY ON THE PASSES.

* IMPACTS...HEAVY SNOW...BRISK WIND AND BLOWING SNOW MAY LEAD TO
  VERY DIFFICULT TRAVEL ACROSS THE WESTERN MOUNTAINS AND VALLEYS
  THIS WEEKEND...AS WELL AS INCREASE THE AVALANCHE DANGER...
  PLEASE VISIT WWW.JHAVALANCHE.ORG BEFORE VENTURING OUT INTO THE
  BACK COUNTRY THIS WEEKEND. COOLER TEMPERATURES AND STRONG
  WINDS WILL ALSO CAUSE WIND CHILLS TO DROP TO DANGEROUS LEVELS.

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.

&&

$$

WYZ026-027-221215-
/O.CON.KRIW.WW.Y.0037.141122T1000Z-141123T1300Z/
UPPER GREEN RIVER BASIN-SOUTH LINCOLN COUNTY-
INCLUDING THE CITIES OF...LA BARGE...BIG PINEY...FARSON...
KEMMERER...COKEVILLE
902 PM MST FRI NOV 21 2014

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 3 AM SATURDAY
TO 6 AM MST SUNDAY...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 3 AM SATURDAY TO
6 AM MST SUNDAY.

* SUMMARY AND TIMING...SNOWFALL WILL BEGIN OVER THE AREA SATURDAY
  MORNING...AND WILL INTENSIFY SATURDAY AFTERNOON.
  SNOWFALL...HEAVY AT TIMES...WILL CONTINUE INTO SATURDAY
  EVENING...AND BEGIN TO TAPER OFF BY MIDNIGHT.

* SNOW ACCUMULATIONS...3 TO 5 INCHES.

* WIND AND VISIBILITY...WIND WILL INCREASE TO 15 TO 20 MPH WITH
  GUSTS UP TO 35 MPH ON SATURDAY AFTERNOON. THIS MAY RESULT IN
  LIMITED VISIBILITIES ON ROADWAYS.

* IMPACTS...SNOW...STRONG WIND AND BLOWING SNOW WILL LEAD TO
  LIMIT VISIBILITIES ACROSS IMPACTED ROADWAYS. MOTORISTS SHOULD
  MONITOR TRAVEL CONDITIONS BEFORE TRAVELING THIS WEEKEND.

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 VISIBILITIES...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.

&&

$$

WYZ016-221215-
/O.CON.KRIW.WW.Y.0037.141122T1000Z-141123T1300Z/
UPPER WIND RIVER BASIN-
INCLUDING THE CITY OF...DUBOIS
902 PM MST FRI NOV 21 2014

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 3 AM SATURDAY
TO 6 AM MST SUNDAY...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 3 AM SATURDAY TO
6 AM MST SUNDAY.

* SUMMARY AND TIMING...SNOWFALL WILL BEGIN NORTH AND WEST OF
  DUBOIS EARLY SATURDAY MORNING...AND CONTINUE THROUGH SATURDAY.
  THE HEAVIEST SNOW IS EXPECTED SATURDAY AFTERNOON.  SNOWFALL WILL
  WEAKEN DURING THE OVERNIGHT HOURS.

* SNOW ACCUMULATIONS...3 TO 6 INCHES.

* WIND AND VISIBILITY...WEST WINDS INCREASING TO 25 TO 35 MPH WITH
  GUSTS NEAR 50 MPH BY SATURDAY AFTERNOON AND CONTINUE THROUGH
  SATURDAY NIGHT. VISIBILITY OF ONE-HALF MILE OR LESS AT TIMES IN
  SNOW AND BLOWING SNOW SATURDAY AFTERNOON AND NIGHT.

* IMPACTS...SNOW...STRONG WIND AND BLOWING SNOW WILL RESULT IN
  HAZARDOUS TRAVEL CONDITIONS ON SATURDAY. MOTORISTS ARE
  ENCOURAGED TO MONITOR ROAD CONDITIONS BEFORE TRAVELING DURING
  THIS WEEKEND.

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 VISIBILITIES...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.

&&

$$







USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.