314
WWUS45 KRIW 081846
WSWRIW

URGENT - WINTER WEATHER MESSAGE
National Weather Service Riverton WY
1246 PM MDT Wed May 8 2024

WYZ008-009-091200-
/O.CAN.KRIW.WS.W.0014.000000T0000Z-240509T1200Z/
/O.EXB.KRIW.WW.Y.0025.000000T0000Z-240509T1200Z/
Bighorn Mountains West-Bighorn Mountains Southeast-
1246 PM MDT Wed May 8 2024

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 6 AM MDT THURSDAY...
...WINTER STORM WARNING IS CANCELLED...

* WHAT...Snow. Total accumulations of 8 to 16 inches, mainly over
  the northern half of the Bighorn Range. Total snowfall of 4 to 8
  inches across the southern half, with locally higher amounts
  possible. Winds could gust as high as 35 mph.

* WHERE...Bighorn Mountains.

* WHEN...Until 6 AM MDT Thursday.

* IMPACTS...Travel could be difficult over both Powder River and
  Granite Passes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling.

For graphical depictions of the snowfall forecast, including the
official NWS forecast, high end amounts, and low end amounts,
visit weather.gov/riw/winter.

For winter road conditions from the Wyoming Department of
Transportation, visit https://wyoroad.info.

&&

$$

WYZ015-091200-
/O.UPG.KRIW.WW.Y.0025.000000T0000Z-240509T1500Z/
/O.NEW.KRIW.WS.W.0015.240508T1846Z-240510T0000Z/
Wind River Mountains East-
1246 PM MDT Wed May 8 2024

...WINTER STORM WARNING IN EFFECT UNTIL 6 PM MDT THURSDAY...

* WHAT...Heavy snow. Additional snow accumulations of 1 to 2 feet
  of snow along the higher elevations. Locally higher amounts are
  possible across the highest peaks. Snow accumulations of 4 to 6
  inches are expected along South Pass. Winds gusting as high as
  35 mph.

* WHERE...Wind River Mountains East.

* WHEN...Until 6 PM MDT Thursday.

* IMPACTS...Travel could be very difficult to impossible in the
  backcountry. Difficult travel can also be expected along South
  Pass.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency.

For graphical depictions of the snowfall forecast, including the
official NWS forecast, high end amounts, and low end amounts,
visit weather.gov/riw/winter.

For winter road conditions from the Wyoming Department of
Transportation, visit https://wyoroad.info.

&&

$$

WYZ002-091200-
/O.EXT.KRIW.WW.Y.0025.000000T0000Z-240509T1200Z/
Absaroka Mountains-
1246 PM MDT Wed May 8 2024

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

* WHAT...Snow. Total snow accumulations of 6 to 12 inches. Locally
  higher amounts up to 1 to 2 feet are possible along the higher
  peaks of the eastern slopes. Winds gusting as high as 40 mph.

* WHERE...Absaroka Mountains.

* WHEN...Until 6 AM MDT Thursday.

* IMPACTS...Travel could be very difficult along Chief Joseph
  Highway.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling.

For graphical depictions of the snowfall forecast, including the
official NWS forecast, high end amounts, and low end amounts,
visit weather.gov/riw/winter.

For winter road conditions from the Wyoming Department of
Transportation, visit https://wyoroad.info.

&&

$$

WYZ022-091200-
/O.CON.KRIW.WW.Y.0026.240508T2200Z-240509T1200Z/
Casper Mountain-
1246 PM MDT Wed May 8 2024

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 4 PM THIS
AFTERNOON TO 6 AM MDT THURSDAY...

* WHAT...Snow expected. Total snow accumulations of 6 to 10
  inches.

* WHERE...Casper Mountain.

* WHEN...From 4 PM this afternoon to 6 AM MDT Thursday.

* IMPACTS...Travel could be difficult on Casper Mountain and on
  the switchbacks heading up the north face of the mountain.

* ADDITIONAL DETAILS...Heaviest snowfall is expected to arrive
  late this afternoon through Thursday morning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling.

For graphical depictions of the snowfall forecast, including the
official NWS forecast, high end amounts, and low end amounts,
visit weather.gov/riw/winter.

For winter road conditions from the Wyoming Department of
Transportation, visit https://wyoroad.info.

&&

$$

For more information from the National Weather Service visit
https://weather.gov/riw