Winter Weather Advisory
URGENT - WINTER WEATHER MESSAGE
National Weather Service Riverton WY
1243 PM MDT Sat Oct 4 2025
WYZ002-015-051300-
/O.CON.KRIW.WW.Y.0026.000000T0000Z-251006T0000Z/
Absaroka Mountains-Wind River Mountains East-
1243 PM MDT Sat Oct 4 2025
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT SUNDAY...
* WHAT...Snow expected. Total snow accumulations of 6 to 10 inches
above 9000 feet with amounts of 10 to 15 inches above 10000 feet.
Elevations between 7000 and 9000 feet can see total snow
accumulations of a trace to 6 inches.
* WHERE...Wind River Mountains East and Absaroka Mountains.
* WHEN...Until 6 PM MDT Sunday.
* IMPACTS...Travel could be difficult at times, especially over
mountain passes and roads.
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
https://weather.gov/riw/winter.
For winter road conditions from the Wyoming Department of
Transportation, visit https://wyoroad.info.
&&
$$
URGENT - WINTER WEATHER MESSAGE
National Weather Service Riverton WY
1243 PM MDT Sat Oct 4 2025
WYZ008-009-051300-
/O.CON.KRIW.WW.Y.0026.251005T0000Z-251006T0000Z/
Bighorn Mountains West-Bighorn Mountains Southeast-
1243 PM MDT Sat Oct 4 2025
...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING
TO 6 PM MDT SUNDAY...
* WHAT...Heavy snow possible. Total snow accumulations of 6 to 12
inches above 9000 feet with localized amounts around 15 inches in
the highest peaks. Elevations between 7000 and 9000 feet can see
total snow accumulations of a trace to 6 inches.
* WHERE...Bighorn Mountains Southeast and Bighorn Mountains West.
* WHEN...From 6 PM this evening to 6 PM MDT Sunday.
* IMPACTS...Travel could be difficult at times especially along US
14 over Granite Pass and US 16 over Powder River Pass.
* ADDITIONAL DETAILS...Periods of moderate to heavy snow are
possible Saturday night and Sunday afternoon.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Slow down and use caution while traveling.
For graphical depictions of the snowfall forecast, including the
official NWS forecast, high end amounts, and low end amounts, visit
https://weather.gov/riw/winter.
For winter road conditions from the Wyoming Department of
Transportation, visit https://wyoroad.info.
&&
$$
For more information from the National Weather Service, visit
https://weather.gov/riw/ .
Wittmann
URGENT - WINTER WEATHER MESSAGE
National Weather Service Riverton WY
1243 PM MDT Sat Oct 4 2025
WYZ012-051300-
/O.CON.KRIW.WW.Y.0026.000000T0000Z-251006T0000Z/
Teton and Gros Ventre Mountains-
1243 PM MDT Sat Oct 4 2025
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT SUNDAY...
* WHAT...Snow expected. Total snow accumulations of 5 to 8 inches
above 9000 feet. Elevations between 7000 and 9000 feet can see
total snow accumulations of a trace to 5 inches. Snow totals 5 to
8 inches along Togwotee Pass.
* WHERE...Teton and Gros Ventre Mountains.
* WHEN...Until 6 PM MDT Sunday.
* IMPACTS...Travel could be difficult at times over mountain passes,
namely along Togwotee Pass.
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
https://weather.gov/riw/winter.
For winter road conditions from the Wyoming Department of
Transportation, visit https://wyoroad.info.
&&
$$
URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
204 AM MDT Sun Oct 5 2025
MTZ330-051815-
/O.CON.KTFX.WW.Y.0042.000000T0000Z-251006T0000Z/
Gallatin and Madison County Mountains and Centennial Mountains-
Including the following locations: West Yellowstone, Raynolds
Pass, Big Sky, and Targhee Pass
204 AM MDT Sun Oct 5 2025
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING...
* WHAT...Snow. Additional snow accumulations up to 4 inches.
* WHERE...Gallatin and Madison County Mountains and Centennial
Mountains.
* WHEN...Until 6 PM MDT this evening.
* IMPACTS...Plan on slushy road conditions with areas of poor
visibility, especially this morning.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Use caution while traveling. The latest road conditions can be
obtained by calling 5 1 1 or visiting the MDT Road Report website.
Remember, a Winter Weather Advisory means that there is at least an
80% chance of minor impacts due to winter weather conditions during
the advisory period.
&&
$$
Hoenisch
URGENT - WINTER WEATHER MESSAGE
National Weather Service Billings MT
815 PM MDT Sat Oct 4 2025
MTZ171-WYZ198-060215-
/O.CON.KBYZ.WW.Y.0034.000000T0000Z-251006T0600Z/
Pryor/Northern Bighorn Mountains-Northeast Bighorn Mountains-
Including the locations of Story and Burgess Jct
815 PM MDT Sat Oct 4 2025
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MDT
SUNDAY NIGHT...
* WHAT...Snow occurring. Snow accumulations between 6 and 12 inches.
Winds gusting as high as 35 mph.
* WHERE...In Montana, Pryor/Northern Bighorn Mountains. In Wyoming,
Northeast Bighorn Mountains.
* WHEN...Until midnight MDT Sunday Night.
* IMPACTS...Recreation in the high country will be impacted by heavy
accumulating snow. Expect travel impacts on US-14 and US-14A
through Burgess Junction.
* ADDITIONAL DETAILS...Heaviest snow accumulations will occur above
8000 feet.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Recreation in the mountains will be hazardous due to harsh wintry
conditions. For the latest road conditions, call 5 1 1.
&&
$$
Additional graphics for this hazard can be found at
http://www.weather.gov/billings
Matos
