Winter Weather Advisory

URGENT - WINTER WEATHER MESSAGE
National Weather Service Boise ID
421 AM MST Fri Dec 5 2025

IDZ011-013-052200-
/O.CON.KBOI.WW.Y.0011.000000T0000Z-251206T0600Z/
West Central Mountains-Boise Mountains-
Including the cities of Big Creek, McCall, Prairie, Pine, Bear,
Cuprum, Warm Lake, Cascade, Ola, and Anderson Dam
421 AM MST Fri Dec 5 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS
EVENING...

* WHAT...Snow. Additional snow accumulations of up to 3 inches in
  mountain valleys before mixing with or changing to rain this
  afternoon. An additional 4 to 8 inches in the mountains above 6000
  feet. Wind gusts of 30 to 40 mph develop later this evening over
  higher mountains.

* WHERE...Boise Mountains and West Central Mountains.

* WHEN...Until 11 PM MST this evening.

* IMPACTS...Travel could be difficult, especially over higher
  elevation passes. Locally heavy snowfall will limit visibilities.

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.

&&

$$

URGENT - WINTER WEATHER MESSAGE
National Weather Service Pocatello ID
253 AM MST Fri Dec 5 2025

IDZ072-073-052230-
/O.CON.KPIH.WW.Y.0019.000000T0000Z-251206T1200Z/
Sawtooth/Stanley Basin-Sun Valley Region-
Including the cities of Sun Valley, Ketchum, Galena, and Stanley
253 AM MST Fri Dec 5 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST
SATURDAY...

* WHAT...Snow expected. Total snow accumulations between 2 and 6
  inches with higher snow totals expected at and above pass level
  with 7 to 10 inches of snow for Galena Summit. Very gusty winds
  developing late Friday into Friday night.

* WHERE...Sawtooth/Stanley Basin and Sun Valley Region.

* WHEN...Until 5 AM MST Saturday.

* IMPACTS...Plan on slippery road conditions. The hazardous
  conditions could impact the Friday commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. Call 5 1 1 or visit
511.idaho.gov for the latest road conditions.

&&

$$

Visit weather.gov/pocatello for more information.

Messick

URGENT - WINTER WEATHER MESSAGE
National Weather Service Missoula MT
222 AM MST Fri Dec 5 2025

IDZ009-010-051800-
/O.CON.KMSO.WW.Y.0046.000000T0000Z-251205T1800Z/
Western Lemhi County-Eastern Lemhi County-
222 AM MST Fri Dec 5 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST THIS
MORNING...

* WHAT...Snow. There is a likelihood of developing or ongoing minor
  winter weather impacts. Additional snow accumulations up to one
  inch.

* WHERE...Highway 93 Lost Trail Pass to Gibbonsville, Lemhi Pass,
  Shoup, Salmon, Bannock Pass, Williams Creek Summit, and Highway 28
  Tendoy to Lone Pine.

* WHEN...Until 11 AM MST this morning.

* IMPACTS...Winter traveling conditions. For MINOR winter weather
  impacts, expect a few inconveniences to normal activities. Use
  caution while driving. The hazardous conditions could impact the
  Friday morning commute, especially over higher passes.

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.

&&

$$