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

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WWUS45 KRIW 262057
WSWRIW

URGENT - WINTER WEATHER MESSAGE
National Weather Service Riverton WY
257 PM MDT Wed Apr 26 2017

...MORE SNOW RETURNING TO WESTERN AND CENTRAL WYOMING THROUGH
FRIDAY NIGHT...

.A low pressure storm system moving across the Pacific northwest
will spread increasing snow into the west tonight and Thursday.
Through Thursday the snow will spread east of the Continental
Divide across the north. The storm system will then strengthen
and close off over south central to southeast Wyoming Thursday
night with potential heavy convective snow developing over the
Big Horn mountains, Johnson, Fremont and Natrona counties.

The mountains may see 10 to 20 inches of snow with 5 to 10 inches
in the lower elevations with local 12 to 15 inch amounts possible
in the foothills areas around Buffalo, Casper and Lander. The
storm system will dig south across northern Colorado and
eventually into northern New Mexico by Saturday when the storm
will be too far south for major impacts in Wyoming.

WYZ003-004-271000-
/O.EXB.KRIW.WW.Y.0026.170427T1200Z-170428T1800Z/
Cody Foothills-North Big Horn Basin-
Including the cities of Cody and Meeteetse
257 PM MDT Wed Apr 26 2017

...WINTER WEATHER ADVISORY IN EFFECT FROM 6 AM THURSDAY TO NOON
MDT FRIDAY...

The National Weather Service in Riverton has issued a Winter
Weather Advisory for heavy wet snow, which is in effect from 6 AM
Thursday to noon MDT Friday.

* TIMING...A mix of rain and snow will change to snow tonight
  and continue into Thursday and Friday.

* TOTAL SNOW...3 to 6 inches with local amounts up to 9 inches
  near the mountains.

* MAIN IMPACT...Highways will become slick, slushy or snow
  covered.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A winter weather advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
and slick roads with limited visibilities. Slow down, and allow
extra time to reach your destination. Check the latest road
conditions at wyoroad.info or by dialing 5 1 1.

&&

$$

WYZ005>007-271000-
/O.EXB.KRIW.WW.Y.0026.170427T1200Z-170429T1200Z/
Southwest Big Horn Basin-Southeast Big Horn Basin-
Owl Creek and Bridger Mountains-
Including the cities of Thermopolis and Worland
257 PM MDT Wed Apr 26 2017

...WINTER WEATHER ADVISORY IN EFFECT FROM 6 AM THURSDAY TO 6 AM
MDT SATURDAY...

The National Weather Service in Riverton has issued a Winter
Weather Advisory for heavy wet snow, which is in effect from 6 AM
Thursday to 6 AM MDT Saturday.

* TIMING...A mix of rain and snow will change to snow tonight and
  continue Thursday through Friday night.

* TOTAL SNOW...3 to 6 inches below 6000 feet with 6 to 12 inches
  in the mountains. Locally higher amounts are possible.

* MAIN IMPACT...Highways will become slick, slushy or snow
  covered.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A winter weather advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
and slick roads with limited visibilities. Slow down, and allow
extra time to reach your destination. Check the latest road
conditions at wyoroad.info or by dialing 5 1 1.

&&

$$

WYZ001-002-271000-
/O.EXT.KRIW.WW.Y.0026.000000T0000Z-170428T1200Z/
Yellowstone National Park-Absaroka Mountains-
Including the cities of Lake, Mammoth, and Old Faithful
257 PM MDT Wed Apr 26 2017

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 6 AM MDT FRIDAY...

* TIMING...Snow showers will become steadier and heavier this
  afternoon and continue Thursday and Thursday night. The heaviest
  snow is expected on Thursday.

* TOTAL SNOW...6 to 12 inches.

* MAIN IMPACT...Highways will become slick and snow covered,
  including Chief Joseph Highway. Visibility could be reduced to
  under one quarter mile at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A winter weather advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
and slick roads with limited visibilities. Slow down, and allow
extra time to reach your destination. Check the latest road
conditions at wyoroad.info or by dialing 5 1 1.

&&

$$

WYZ012-271000-
/O.CON.KRIW.WW.Y.0026.000000T0000Z-170427T1800Z/
Teton and Gros Ventre Mountains-
257 PM MDT Wed Apr 26 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MDT
THURSDAY...

* TIMING...Snow showers will become steadier and heavier this
  afternoon and continue into Thursday. The heaviest snow is
  expected later tonight and Thursday morning.

* TOTAL SNOWFALL...6 to 12 inches.

* OTHER IMPACTS...Highways will become slick and snow covered,
  including Teton and Togwotee passes. Visibility could be reduced
  to under a quarter mile at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A winter weather advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
and slick roads with limited visibilities. Slow down, and allow
extra time to reach your destination. Check the latest road
conditions at wyoroad.info or by dialing 5 1 1.

&&

$$

WYZ024-271000-
/O.CON.KRIW.WW.Y.0026.000000T0000Z-170427T1800Z/
Salt River and Wyoming Ranges-
257 PM MDT Wed Apr 26 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MDT
THURSDAY...

* TIMING...Snow showers will become steadier and heavier this
  afternoon and continue into Thursday. The heaviest snow is
  expected later tonight and Thursday morning.

* TOTAL SNOWFALL...5 to 10 inches.

* MAIN IMPACT...Highways will become slick, slushy or snow
  covered, including Salt Pass. Visibility could be reduced to
  under a quarter mile at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A winter weather advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
and slick roads with limited visibilities. Slow down, and allow
extra time to reach your destination. Check the latest road
conditions at wyoroad.info or by dialing 5 1 1.

&&

$$

WYZ013-023-271000-
/O.CON.KRIW.WW.Y.0026.170427T0000Z-170427T1800Z/
Jackson Hole-Star Valley-
Including the cities of Jackson, Afton, Alpine,
Star Valley Ranch, and Thayne
257 PM MDT Wed Apr 26 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 PM THIS
EVENING TO NOON MDT THURSDAY...

* TIMING...A mix of rain and snow will change to snow tonight
  and continue into Thursday.

* TOTAL SNOW...3 to 8 inches.

* MAIN IMPACT...Highways will become slick, slushy or snow
  covered.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A winter weather advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
and slick roads with limited visibilities. Slow down, and allow
extra time to reach your destination. Check the latest road
conditions at wyoroad.info or by dialing 5 1 1.

&&

$$

WYZ008-009-271000-
/O.NEW.KRIW.WS.A.0017.170427T1200Z-170429T1200Z/
Bighorn Mountains West-Bighorn Mountains Southeast-
257 PM MDT Wed Apr 26 2017

...WINTER STORM WATCH IN EFFECT FROM THURSDAY MORNING THROUGH
LATE FRIDAY NIGHT...

The National Weather Service in Riverton has issued a Winter
Storm Watch, which is in effect from Thursday morning through
late Friday night.

* TIMING...Snow will increase over the Bighorn mountains towards
  morning. As the storm develops heavy snow will be possible
  through Friday night.

* Snow Accumulation...12 to 24 inches.

* MAIN IMPACT...Slushy to snow packed roads will make travel
  difficult on Powder River Pass.

* OTHER IMPACTS...Heavy snow will reduce visibility below a
  quarter mile at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A winter storm watch means there is a potential for significant
snow and/or blowing snow that may impact travel. Continue to
monitor the latest forecasts.

&&

$$

WYZ010-011-271000-
/O.NEW.KRIW.WS.A.0017.170428T0000Z-170429T1200Z/
Northeast Johnson County-Southeast Johnson County-
Including the cities of Buffalo and Kaycee
257 PM MDT Wed Apr 26 2017

...WINTER STORM WATCH IN EFFECT FROM THURSDAY EVENING THROUGH
LATE FRIDAY NIGHT...

The National Weather Service in Riverton has issued a Winter
Storm Watch, which is in effect from Thursday evening through
late Friday night.

* TIMING...Snow will increase over Johnson county Thursday
  afternoon.  As the storm develops heavy snow will be possible
  through Friday night.

* Snow Accumulation...6 to 12 inches.

* MAIN IMPACT...Slushy to snow packed roads will make travel
  difficult.

* OTHER IMPACTS...Heavy snow will reduce visibility below a
  quarter mile at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A winter storm watch means there is a potential for significant
snow and/or blowing snow that may impact travel. Continue to
monitor the latest forecasts.

&&

$$

WYZ020-022-271000-
/O.NEW.KRIW.WS.A.0017.170428T0000Z-170429T1200Z/
Natrona County Lower Elevations-Casper Mountain-
Including the city of Casper
257 PM MDT Wed Apr 26 2017

...WINTER STORM WATCH IN EFFECT FROM THURSDAY EVENING THROUGH
LATE FRIDAY NIGHT...

The National Weather Service in Riverton has issued a Winter
Storm Watch, which is in effect from Thursday evening through
late Friday night.

* TIMING...Snow will increase over Natrona county Thursday
  afternoon. As the storm develops heavy snow will be possible
  through Friday night.

* Snow Accumulation...6 to 12 inches below 6000 feet with 12 to 24
  inches on Casper Mountain.

* MAIN IMPACT...Slushy to snow packed roads will make travel
  difficult.

* OTHER IMPACTS...Heavy snow will reduce visibility below a
  quarter mile at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A winter storm watch means there is a potential for significant
snow and/or blowing snow that may impact travel. Continue to
monitor the latest forecasts.

&&

$$

WYZ015-019-271000-
/O.NEW.KRIW.WS.A.0017.170428T0000Z-170429T1200Z/
Wind River Mountains East-Green Mountains and Rattlesnake Range-
Including the city of Jeffrey City
257 PM MDT Wed Apr 26 2017

...WINTER STORM WATCH IN EFFECT FROM THURSDAY EVENING THROUGH
LATE FRIDAY NIGHT...

The National Weather Service in Riverton has issued a Winter
Storm Watch, which is in effect from Thursday evening through
late Friday night.

* TIMING...Snow will increase over Southern Fremont and Southwest
  Natrona counties Thursday afternoon. As the storm develops
  heavy snow will be possible through Friday night.

* Snow Accumulation...6 to 12 inches.

* MAIN IMPACT...Slushy to snow packed roads will make travel
  difficult.

* OTHER IMPACTS...Heavy snow will reduce visibility below a
  quarter mile at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A winter storm watch means there is a potential for significant
snow and/or blowing snow that may impact travel. Continue to
monitor the latest forecasts.

&&

$$

WYZ017-018-271000-
/O.NEW.KRIW.WS.A.0017.170428T0000Z-170429T1200Z/
Wind River Basin-Lander Foothills-
Including the cities of Riverton, Shoshoni, and Lander
257 PM MDT Wed Apr 26 2017

...WINTER STORM WATCH IN EFFECT FROM THURSDAY EVENING THROUGH
LATE FRIDAY NIGHT...

The National Weather Service in Riverton has issued a Winter
Storm Watch, which is in effect from Thursday evening through
late Friday night.

* TIMING...Snow will increase over Fremont county Thursday
  afternoon. As the storm develops heavy snow will be possible
  through Friday night.

* Snow Accumulation...6 to 12 inches below 6000 feet with 12 to 24
  inches on the east slope of the Wind River mountains including
  South Pass.

* MAIN IMPACT...Slushy to snow packed roads will make travel
  difficult, especially on South Pass.

* OTHER IMPACTS...Heavy snow will reduce visibility below a
  quarter mile at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A winter storm watch means there is a potential for significant
snow and/or blowing snow that may impact travel. Continue to
monitor the latest forecasts.

&&

$$



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