Winter Weather Advisory

URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
134 PM MDT Fri Oct 3 2025

MTZ330-041045-
/O.UPG.KTFX.WS.A.0015.251005T0000Z-251006T0000Z/
/O.NEW.KTFX.WW.Y.0042.251005T0000Z-251006T0000Z/
Gallatin and Madison County Mountains and Centennial Mountains-
Including the following locations: Raynolds Pass, Targhee Pass,
Big Sky, and West Yellowstone
134 PM MDT Fri Oct 3 2025

...WINTER WEATHER ADVISORY IN EFFECT FROM 6 PM SATURDAY TO 6 PM MDT
SUNDAY...

* WHAT...Heavy, wet snow expected. Total snow accumulations of 3 to
  7 inches above 6000 feet.

* WHERE...Gallatin and Madison County Mountains and Centennial
  Mountains.

* WHEN...From 6 PM Saturday to 6 PM MDT Sunday.

* IMPACTS...Cold, wet, and raw outdoor conditions. Increased risk
  for hypothermia for those not properly dressed for the weather.
  Forest roads may become difficult to travel or impassible due to
  muddy and slushy conditions.

* ADDITIONAL DETAILS...Isolated power outages for areas that receive
  heavier snow falling onto power lines and or trees with full
  foliage.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. The latest road
conditions can be obtained by calling 5 1 1 or visiting the MDT Road
Report website.



&&

$$

URGENT - WINTER WEATHER MESSAGE
National Weather Service Riverton WY
102 PM MDT Fri Oct 3 2025

WYZ012-041300-
/O.NEW.KRIW.WW.Y.0026.251004T1800Z-251006T0000Z/
Teton and Gros Ventre Mountains-
102 PM MDT Fri Oct 3 2025

...WINTER WEATHER ADVISORY IN EFFECT FROM NOON SATURDAY TO 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...From noon Saturday to 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 Missoula MT
1215 PM MDT Fri Oct 3 2025

MTZ007-041815-
/O.NEW.KMSO.WW.Y.0036.251005T0600Z-251005T1800Z/
Butte/Blackfoot Region-
1215 PM MDT Fri Oct 3 2025

...WINTER WEATHER ADVISORY IN EFFECT FROM MIDNIGHT SATURDAY NIGHT TO
NOON MDT SUNDAY ABOVE 5500 FEET...

* WHAT...Snow expected above 5500 feet. There is a likelihood of
  minor to moderate winter weather impacts, for early season snow.
  Total snow accumulations of 2 to 4 inches.

* WHERE...Backcountry roads. Impacts due to snow are expected to be
  above pass levels.

* WHEN...From midnight Saturday Night to noon MDT Sunday.

* IMPACTS...For MODERATE winter weather impacts, expect disruptions
  to normal activities. Hazardous traveling conditions. Use extra
  caution while driving. Closures and disruptions to infrastructure
  may occur.

* ADDITIONAL DETAILS...Pack additional supplies for cold, wet and
  breezy conditions in the backcountry.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. The latest road
conditions for the state you are calling from can be obtained by
calling 5 1 1.

&&

$$