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Winter Weather Advisory 0019
Issued by the Pocatello Forecast Office

Action Issued Starts Expiration
New 2025-12-04 16:52:01 2025-12-04 18:00:00 2025-12-06 06:00:00
New 2025-12-04 16:52:01 2025-12-04 18:00:00 2025-12-06 06:00:00
Continued 2025-12-05 03:53:33 2025-12-06 06:00:00
Continued 2025-12-05 03:53:33 2025-12-06 06:00:00
Cancelled 2025-12-05 14:44:08 2025-12-06 06:00:00
Continued 2025-12-05 14:44:08 2025-12-06 06:00:00
Time Extended 2025-12-06 02:58:41 2025-12-06 12:00:00
Cancelled 2025-12-06 09:36:00 2025-12-06 12:00:00


Action: New
Issued At: 2025-12-04 16:52:01

020 
WWUS45 KPIH 042251
WSWPIH

URGENT - WINTER WEATHER MESSAGE
National Weather Service Pocatello ID
351 PM MST Thu Dec 4 2025

IDZ058>066-051130-
/O.CON.KPIH.WS.W.0008.251205T0000Z-251206T1200Z/
Marsh and Arbon Highlands-Franklin/Eastern Oneida Region-Bear
River Range-Bear Lake Valley-Blackfoot Mountains-Caribou Range-
Big Hole Mountains-Teton Valley-Centennial Mountains - Island
Park-
Including the cities of Wayan, Georgetown, Driggs, Grace, Downey,
Tetonia, Preston, Kilgore, Emigration Summit, Soda Springs,
Victor, Island Park, Thatcher, Montpelier, Swan Valley, Lava Hot
Springs, St. Charles, Inkom, Ashton, Bone, Malad, McCammon, and
Henry
351 PM MST Thu Dec 4 2025

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST SATURDAY...

* WHAT...Heavy snow expected at times. Total snow accumulations 
  through Friday night between 3 and 6 inches in the valleys and 10 
  to 18 inches in the mountains. A few locations above 8000 ft could 
  see higher amounts with snow rates approaching an inch per hour at 
  times. Very gusty winds developing late Friday into Friday night.

* WHERE...Big Hole Mountains, Centennial Mountains - Island Park, 
  Teton Valley, Bear Lake Valley, Bear River Range, Blackfoot 
  Mountains, Caribou Range, Franklin/Eastern Oneida Region, and 
  Marsh and Arbon Highlands.

* WHEN...Until 5 AM MST Saturday.

* IMPACTS...Travel could be very difficult to impossible. The 
  hazardous conditions could impact the Friday morning commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in 
your vehicle in case of an emergency. Call 5 1 1 or visit 
511.idaho.gov for the latest road conditions.

&&

$$

IDZ053-051130-
/O.NEW.KPIH.WW.Y.0019.251205T0000Z-251206T1200Z/
Upper Snake River Plain-
Including the cities of St. Anthony, Idaho Falls, and Rexburg
351 PM MST Thu Dec 4 2025

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

* WHAT...Snow expected. Total snow accumulations between 2 and 6 
  inches with totals closer to the higher end of that range from 
  Rexburg northward. Very gusty winds developing late Friday into 
  Friday night.

* WHERE...Upper Snake River Plain.

* WHEN...Until 5 AM MST Saturday.

* IMPACTS...Travel could be very difficult. The hazardous conditions 
  could impact the Thursday evening and Friday commutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

IDZ072-073-051130-
/O.NEW.KPIH.WW.Y.0019.251205T0000Z-251206T1200Z/
Sawtooth/Stanley Basin-Sun Valley Region-
Including the cities of Galena, Sun Valley, Stanley, and Ketchum
351 PM MST Thu Dec 4 2025

...WINTER WEATHER ADVISORY 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 Thursday evening and Friday commutes.

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.

AM


Action: New
Issued At: 2025-12-04 16:52:01

020 
WWUS45 KPIH 042251
WSWPIH

URGENT - WINTER WEATHER MESSAGE
National Weather Service Pocatello ID
351 PM MST Thu Dec 4 2025

IDZ058>066-051130-
/O.CON.KPIH.WS.W.0008.251205T0000Z-251206T1200Z/
Marsh and Arbon Highlands-Franklin/Eastern Oneida Region-Bear
River Range-Bear Lake Valley-Blackfoot Mountains-Caribou Range-
Big Hole Mountains-Teton Valley-Centennial Mountains - Island
Park-
Including the cities of Wayan, Georgetown, Driggs, Grace, Downey,
Tetonia, Preston, Kilgore, Emigration Summit, Soda Springs,
Victor, Island Park, Thatcher, Montpelier, Swan Valley, Lava Hot
Springs, St. Charles, Inkom, Ashton, Bone, Malad, McCammon, and
Henry
351 PM MST Thu Dec 4 2025

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST SATURDAY...

* WHAT...Heavy snow expected at times. Total snow accumulations 
  through Friday night between 3 and 6 inches in the valleys and 10 
  to 18 inches in the mountains. A few locations above 8000 ft could 
  see higher amounts with snow rates approaching an inch per hour at 
  times. Very gusty winds developing late Friday into Friday night.

* WHERE...Big Hole Mountains, Centennial Mountains - Island Park, 
  Teton Valley, Bear Lake Valley, Bear River Range, Blackfoot 
  Mountains, Caribou Range, Franklin/Eastern Oneida Region, and 
  Marsh and Arbon Highlands.

* WHEN...Until 5 AM MST Saturday.

* IMPACTS...Travel could be very difficult to impossible. The 
  hazardous conditions could impact the Friday morning commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in 
your vehicle in case of an emergency. Call 5 1 1 or visit 
511.idaho.gov for the latest road conditions.

&&

$$

IDZ053-051130-
/O.NEW.KPIH.WW.Y.0019.251205T0000Z-251206T1200Z/
Upper Snake River Plain-
Including the cities of St. Anthony, Idaho Falls, and Rexburg
351 PM MST Thu Dec 4 2025

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

* WHAT...Snow expected. Total snow accumulations between 2 and 6 
  inches with totals closer to the higher end of that range from 
  Rexburg northward. Very gusty winds developing late Friday into 
  Friday night.

* WHERE...Upper Snake River Plain.

* WHEN...Until 5 AM MST Saturday.

* IMPACTS...Travel could be very difficult. The hazardous conditions 
  could impact the Thursday evening and Friday commutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

IDZ072-073-051130-
/O.NEW.KPIH.WW.Y.0019.251205T0000Z-251206T1200Z/
Sawtooth/Stanley Basin-Sun Valley Region-
Including the cities of Galena, Sun Valley, Stanley, and Ketchum
351 PM MST Thu Dec 4 2025

...WINTER WEATHER ADVISORY 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 Thursday evening and Friday commutes.

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.

AM


Action: Continued
Issued At: 2025-12-05 03:53:33

912 
WWUS45 KPIH 050953
WSWPIH

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

IDZ058>066-052230-
/O.CON.KPIH.WS.W.0008.000000T0000Z-251206T1200Z/
Marsh and Arbon Highlands-Franklin/Eastern Oneida Region-Bear
River Range-Bear Lake Valley-Blackfoot Mountains-Caribou Range-
Big Hole Mountains-Teton Valley-Centennial Mountains - Island
Park-
Including the cities of Thatcher, Grace, Victor, Driggs, Soda
Springs, Kilgore, Henry, Emigration Summit, Tetonia, Preston,
Downey, Georgetown, Malad, Lava Hot Springs, Bone, Swan Valley,
McCammon, Island Park, Ashton, St. Charles, Inkom, Wayan, and
Montpelier
253 AM MST Fri Dec 5 2025

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST SATURDAY...

* WHAT...Heavy snow expected at times. Total snow accumulations 
  through Friday night between 3 and 6 inches in the valleys and 10 
  to 18 inches in the mountains. A few locations above 8000 ft could 
  see higher amounts with snow rates approaching an inch per hour at 
  times. Very gusty winds developing late Friday into Friday night.

* WHERE...Big Hole Mountains, Centennial Mountains - Island Park, 
  Teton Valley, Bear Lake Valley, Bear River Range, Blackfoot 
  Mountains, Caribou Range, Franklin/Eastern Oneida Region, and 
  Marsh and Arbon Highlands.

* WHEN...Until 5 AM MST Saturday.

* IMPACTS...Travel could be very difficult to impossible. The 
  hazardous conditions could impact the Friday morning commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in 
your vehicle in case of an emergency. Call 5 1 1 or visit 
511.idaho.gov for the latest road conditions.

&&

$$

IDZ053-052230-
/O.CON.KPIH.WW.Y.0019.000000T0000Z-251206T1200Z/
Upper Snake River Plain-
Including the cities of St. Anthony, Idaho Falls, and Rexburg
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 totals closer to the higher end of that range from 
  Rexburg northward. Very gusty winds developing late Friday into 
  Friday night.

* WHERE...Upper Snake River Plain.

* WHEN...Until 5 AM MST Saturday.

* IMPACTS...Travel could be very difficult. 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.

&&

$$

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


Action: Continued
Issued At: 2025-12-05 03:53:33

912 
WWUS45 KPIH 050953
WSWPIH

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

IDZ058>066-052230-
/O.CON.KPIH.WS.W.0008.000000T0000Z-251206T1200Z/
Marsh and Arbon Highlands-Franklin/Eastern Oneida Region-Bear
River Range-Bear Lake Valley-Blackfoot Mountains-Caribou Range-
Big Hole Mountains-Teton Valley-Centennial Mountains - Island
Park-
Including the cities of Thatcher, Grace, Victor, Driggs, Soda
Springs, Kilgore, Henry, Emigration Summit, Tetonia, Preston,
Downey, Georgetown, Malad, Lava Hot Springs, Bone, Swan Valley,
McCammon, Island Park, Ashton, St. Charles, Inkom, Wayan, and
Montpelier
253 AM MST Fri Dec 5 2025

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST SATURDAY...

* WHAT...Heavy snow expected at times. Total snow accumulations 
  through Friday night between 3 and 6 inches in the valleys and 10 
  to 18 inches in the mountains. A few locations above 8000 ft could 
  see higher amounts with snow rates approaching an inch per hour at 
  times. Very gusty winds developing late Friday into Friday night.

* WHERE...Big Hole Mountains, Centennial Mountains - Island Park, 
  Teton Valley, Bear Lake Valley, Bear River Range, Blackfoot 
  Mountains, Caribou Range, Franklin/Eastern Oneida Region, and 
  Marsh and Arbon Highlands.

* WHEN...Until 5 AM MST Saturday.

* IMPACTS...Travel could be very difficult to impossible. The 
  hazardous conditions could impact the Friday morning commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in 
your vehicle in case of an emergency. Call 5 1 1 or visit 
511.idaho.gov for the latest road conditions.

&&

$$

IDZ053-052230-
/O.CON.KPIH.WW.Y.0019.000000T0000Z-251206T1200Z/
Upper Snake River Plain-
Including the cities of St. Anthony, Idaho Falls, and Rexburg
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 totals closer to the higher end of that range from 
  Rexburg northward. Very gusty winds developing late Friday into 
  Friday night.

* WHERE...Upper Snake River Plain.

* WHEN...Until 5 AM MST Saturday.

* IMPACTS...Travel could be very difficult. 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.

&&

$$

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


Action: Cancelled
Issued At: 2025-12-05 14:44:08

649 
WWUS45 KPIH 052043
WSWPIH

URGENT - WINTER WEATHER MESSAGE
National Weather Service Pocatello ID
143 PM MST Fri Dec 5 2025

IDZ053-052145-
/O.CAN.KPIH.WW.Y.0019.000000T0000Z-251206T1200Z/
Upper Snake River Plain-
Including the cities of St. Anthony, Rexburg, and Idaho Falls
143 PM MST Fri Dec 5 2025

...WINTER WEATHER ADVISORY IS CANCELLED...

Minor snow accumulations of 1 to 2 inches will be possible late this 
afternoon and evening generally northeast of Rexburg. Gusty winds 
are forecast for this evening and overnight. Travel impacts are 
expected to remain minor, therefore the Winter Weather Advisory has 
been cancelled.

$$

IDZ058>066-061200-
/O.CON.KPIH.WS.W.0008.000000T0000Z-251206T1200Z/
Marsh and Arbon Highlands-Franklin/Eastern Oneida Region-Bear
River Range-Bear Lake Valley-Blackfoot Mountains-Caribou Range-
Big Hole Mountains-Teton Valley-Centennial Mountains - Island
Park-
Including the cities of Malad, Thatcher, McCammon, Tetonia,
Inkom, Downey, Victor, Ashton, Montpelier, Lava Hot Springs,
Grace, Swan Valley, Emigration Summit, Georgetown, Island Park,
Driggs, Wayan, Bone, Soda Springs, Henry, St. Charles, Preston,
and Kilgore
143 PM MST Fri Dec 5 2025

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST SATURDAY...

* WHAT...Heavy snow generally above valley floors. Additional snow 
  accumulations of 6 to 10 inches above 6500 ft elevation. The Bear 
  River and Caribou Ranges could see additional accumulations of 12 
  to 18 inches. Very gusty winds overnight may cause areas of 
  blowing and drifting snowfall.

* WHERE...Big Hole Mountains, Centennial Mountains - Island Park, 
  Teton Valley, Bear Lake Valley, Bear River Range, Blackfoot 
  Mountains, Caribou Range, Franklin/Eastern Oneida Region, and 
  Marsh and Arbon Highlands.

* WHEN...Until 5 AM MST Saturday.

* IMPACTS...Travel could be very difficult to impossible. The 
  hazardous conditions could impact the Friday evening commute. 
  Gusty winds could bring down tree branches.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in 
your vehicle in case of an emergency. Call 5 1 1 or visit 
511.idaho.gov for the latest road conditions.

&&

$$

IDZ072-073-061200-
/O.CON.KPIH.WW.Y.0019.000000T0000Z-251206T1200Z/
Sawtooth/Stanley Basin-Sun Valley Region-
Including the cities of Galena, Stanley, Sun Valley, and Ketchum
143 PM MST Fri Dec 5 2025

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

* WHAT...Snow expected. Additional snow accumulations between 2 and 
  6 inches with higher snow totals expected at and above pass level 
  with 6 to 10 inches of snow for Galena Summit. Gusty winds are 
  possible, with areas of blowing and drifting snow.

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

* WHEN...Until 5 AM MST Saturday.

* IMPACTS...Travel could be very difficult. The hazardous conditions 
  could impact the Friday evening commute. Gusty winds could bring 
  down tree branches.

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.

DMH


Action: Continued
Issued At: 2025-12-05 14:44:08

649 
WWUS45 KPIH 052043
WSWPIH

URGENT - WINTER WEATHER MESSAGE
National Weather Service Pocatello ID
143 PM MST Fri Dec 5 2025

IDZ053-052145-
/O.CAN.KPIH.WW.Y.0019.000000T0000Z-251206T1200Z/
Upper Snake River Plain-
Including the cities of St. Anthony, Rexburg, and Idaho Falls
143 PM MST Fri Dec 5 2025

...WINTER WEATHER ADVISORY IS CANCELLED...

Minor snow accumulations of 1 to 2 inches will be possible late this 
afternoon and evening generally northeast of Rexburg. Gusty winds 
are forecast for this evening and overnight. Travel impacts are 
expected to remain minor, therefore the Winter Weather Advisory has 
been cancelled.

$$

IDZ058>066-061200-
/O.CON.KPIH.WS.W.0008.000000T0000Z-251206T1200Z/
Marsh and Arbon Highlands-Franklin/Eastern Oneida Region-Bear
River Range-Bear Lake Valley-Blackfoot Mountains-Caribou Range-
Big Hole Mountains-Teton Valley-Centennial Mountains - Island
Park-
Including the cities of Malad, Thatcher, McCammon, Tetonia,
Inkom, Downey, Victor, Ashton, Montpelier, Lava Hot Springs,
Grace, Swan Valley, Emigration Summit, Georgetown, Island Park,
Driggs, Wayan, Bone, Soda Springs, Henry, St. Charles, Preston,
and Kilgore
143 PM MST Fri Dec 5 2025

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST SATURDAY...

* WHAT...Heavy snow generally above valley floors. Additional snow 
  accumulations of 6 to 10 inches above 6500 ft elevation. The Bear 
  River and Caribou Ranges could see additional accumulations of 12 
  to 18 inches. Very gusty winds overnight may cause areas of 
  blowing and drifting snowfall.

* WHERE...Big Hole Mountains, Centennial Mountains - Island Park, 
  Teton Valley, Bear Lake Valley, Bear River Range, Blackfoot 
  Mountains, Caribou Range, Franklin/Eastern Oneida Region, and 
  Marsh and Arbon Highlands.

* WHEN...Until 5 AM MST Saturday.

* IMPACTS...Travel could be very difficult to impossible. The 
  hazardous conditions could impact the Friday evening commute. 
  Gusty winds could bring down tree branches.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in 
your vehicle in case of an emergency. Call 5 1 1 or visit 
511.idaho.gov for the latest road conditions.

&&

$$

IDZ072-073-061200-
/O.CON.KPIH.WW.Y.0019.000000T0000Z-251206T1200Z/
Sawtooth/Stanley Basin-Sun Valley Region-
Including the cities of Galena, Stanley, Sun Valley, and Ketchum
143 PM MST Fri Dec 5 2025

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

* WHAT...Snow expected. Additional snow accumulations between 2 and 
  6 inches with higher snow totals expected at and above pass level 
  with 6 to 10 inches of snow for Galena Summit. Gusty winds are 
  possible, with areas of blowing and drifting snow.

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

* WHEN...Until 5 AM MST Saturday.

* IMPACTS...Travel could be very difficult. The hazardous conditions 
  could impact the Friday evening commute. Gusty winds could bring 
  down tree branches.

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.

DMH


Action: Time Extended
Issued At: 2025-12-06 02:58:41

130 
WWUS45 KPIH 060858
WSWPIH

URGENT - WINTER WEATHER MESSAGE
National Weather Service Pocatello ID
158 AM MST Sat Dec 6 2025

IDZ058>066-061800-
/O.EXT.KPIH.WS.W.0008.000000T0000Z-251206T1800Z/
Marsh and Arbon Highlands-Franklin/Eastern Oneida Region-Bear
River Range-Bear Lake Valley-Blackfoot Mountains-Caribou Range-
Big Hole Mountains-Teton Valley-Centennial Mountains - Island
Park-
Including the cities of Grace, Ashton, Lava Hot Springs, Tetonia,
Montpelier, McCammon, Thatcher, St. Charles, Malad, Kilgore,
Bone, Swan Valley, Inkom, Preston, Downey, Soda Springs, Island
Park, Wayan, Georgetown, Henry, Driggs, Victor, and Emigration
Summit
158 AM MST Sat Dec 6 2025

...WINTER STORM WARNING NOW IN EFFECT UNTIL 11 AM MST THIS MORNING...

* WHAT...Heavy snow generally above valley floors. Additional snow 
  accumulations of 6 to 10 inches above 6500 ft elevation. The Bear 
  River and Caribou Ranges could see additional accumulations of 12 
  to 18 inches. Very gusty winds overnight may cause areas of 
  blowing and drifting snowfall.

* WHERE...Big Hole Mountains, Centennial Mountains - Island Park, 
  Teton Valley, Bear Lake Valley, Bear River Range, Blackfoot 
  Mountains, Caribou Range, Franklin/Eastern Oneida Region, and 
  Marsh and Arbon Highlands.

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

* IMPACTS...Travel could be very difficult to impossible. The 
  hazardous conditions could impact Saturday morning travel.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in 
your vehicle in case of an emergency. Call 5 1 1 or visit 
511.idaho.gov for the latest road conditions.

&&

$$

IDZ072-073-061800-
/O.EXT.KPIH.WW.Y.0019.000000T0000Z-251206T1800Z/
Sawtooth/Stanley Basin-Sun Valley Region-
Including the cities of Ketchum, Stanley, Sun Valley, and Galena
158 AM MST Sat Dec 6 2025

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

* WHAT...Snow expected. Additional snow accumulations between 2 and 
  6 inches with higher snow totals expected at and above pass level 
  with 6 to 10 inches of snow for Galena Summit. Gusty winds are 
  possible, with areas of blowing and drifting snow.

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

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

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact Saturday morning travel.

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


Action: Cancelled
Issued At: 2025-12-06 09:36:00

655 
WWUS45 KPIH 061535
WSWPIH

URGENT - WINTER WEATHER MESSAGE
National Weather Service Pocatello ID
835 AM MST Sat Dec 6 2025

IDZ058>066-061645-
/O.CAN.KPIH.WS.W.0008.000000T0000Z-251206T1800Z/
Marsh and Arbon Highlands-Franklin/Eastern Oneida Region-Bear
River Range-Bear Lake Valley-Blackfoot Mountains-Caribou Range-
Big Hole Mountains-Teton Valley-Centennial Mountains - Island
Park-
Including the cities of Downey, Victor, Emigration Summit, Bone,
St. Charles, Ashton, Georgetown, Wayan, Kilgore, Inkom, Driggs,
Soda Springs, Island Park, Thatcher, Swan Valley, Grace, Tetonia,
Lava Hot Springs, Preston, Malad, McCammon, Henry, and Montpelier
835 AM MST Sat Dec 6 2025

...WINTER STORM WARNING IS CANCELLED...

The threat of widespread snow has ended. Snow showers throughout the 
day and tonight may produce an additional 1 to 3 inches of 
accumulation mainly at higher elevations, but travel impacts are 
expected to be minimal. Therefore the Winter Storm Warning is 
cancelled.

$$

IDZ072-073-061645-
/O.CAN.KPIH.WW.Y.0019.000000T0000Z-251206T1800Z/
Sawtooth/Stanley Basin-Sun Valley Region-
Including the cities of Ketchum, Sun Valley, Stanley, and Galena
835 AM MST Sat Dec 6 2025

...WINTER WEATHER ADVISORY IS CANCELLED...

The threat of widespread snow has ended. Snow showers throughout the 
day and tonight may produce an additional 1 to 3 inches of 
accumulation mainly at higher elevations, but travel impacts are 
expected to be minimal. Therefore the Winter Weather Advisory is 
cancelled.

$$

Visit weather.gov/pocatello for more information.

DMH



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