Alert archive / Idaho / Winter Storm Warnings in 2021

Winter Storm Warning 5, NWS Pocatello, ID

February 25, 20219 counties in Idaho

NWS Pocatello, ID issued this winter storm warning at Feb 25, 2021, 3:13 AM MST for 9 counties in Idaho. It took effect at Feb 25, 2021, 6:00 PM MST. It was in force for 38 hr. 6 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Feb 25, 2021, 3:13 AM MST (10:13 UTC)
In effect from
Feb 25, 2021, 6:00 PM MST
Expired
Feb 27, 2021, 7:59 AM MST
In force
38 hr
Issued by
NWS Pocatello, ID

Counties Bear Lake County, ID, Blaine County, ID, Bonneville County, ID, Caribou County, ID, Custer County, ID, Franklin County, ID, Fremont County, ID, Madison County, ID, Teton County, ID

The radar

The Pocatello radar (KSFX), 54 km from the middle of the area, began a volume at 10:13 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

TimeReportWhereRemark
Feb 26, 8:30 AM MSTSNOW 2Marysville, ID
Feb 27, 7:00 AM MSTSNOW 0.8Bellevue, IDCOCORAHS STATION ID-BN-3 BELLEVUE.
Feb 27, 7:00 AM MSTSNOW 1.64 Ene Ucon, IDCOCORAHS STATION ID-BV-6 4 ENE UCON.
Feb 27, 7:00 AM MSTSNOW 1.6Stanley, IDCO-OP OBSERVER STATION STAI1 STANLEY.
Feb 27, 8:00 AM MSTSNOW 0.84 Nne Menan, IDCO-OP OBSERVER STATION MEAI1 MENAN 4 NNE.
Feb 27, 8:00 AM MSTHEAVY SNOW 88 Sw Island Park, IDMEASURED SINCE LAST NIGHT.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Salt Lake City I, UT (KSLC), launched 00:00Z, 10.2 hours before the alert went out and 285 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Salt Lake City I, UT at 00:00Z on 2021-02-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Salt Lake City I, UT at 00:00Z on 2021-02-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -13 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2109 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
-13 m²/s²
0-3 km storm-relative helicity
6 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

196 
WWUS45 KPIH 251013
WSWPIH

URGENT - WINTER WEATHER MESSAGE
National Weather Service Pocatello ID
313 AM MST Thu Feb 25 2021

IDZ072-073-261200-
/O.UPG.KPIH.WS.A.0003.210226T0100Z-210227T0500Z/
/O.NEW.KPIH.WS.W.0005.210226T0100Z-210227T0500Z/
Sawtooth/Stanley Basin-Sun Valley Region-
Including the cities of Stanley, Ketchum, Sun Valley, and Galena
313 AM MST Thu Feb 25 2021

...WINTER STORM WARNING IN EFFECT FROM 6 PM THIS EVENING TO 10 PM
MST FRIDAY...

* WHAT...Heavy snow expected. Total snow accumulations of 3 to 7
  inches, except 6 to 10 inches on ridge tops and elevations 
  above passes.

* WHERE...Sawtooth and Stanley Basin and the Sun Valley Region,
  including Ketchum, Sun Valley, and Stanley.

* WHEN...From 6 PM this evening to 10 PM MST Friday.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the morning or evening commute.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

The latest road conditions can be obtained by calling 5 1 1.

&&

$$

IDZ060-063>065-261200-
/O.UPG.KPIH.WS.A.0003.210226T0700Z-210227T1300Z/
/O.NEW.KPIH.WS.W.0005.210226T0700Z-210227T1300Z/
Bear River Range-Caribou Range-Big Hole Mountains-Teton Valley-
Including the cities of Emigration Summit, Wayan, Swan Valley, 
Victor, Ashton, Tetonia, and Driggs
313 AM MST Thu Feb 25 2021

...WINTER STORM WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 6 AM
MST SATURDAY...

* WHAT...Heavy snow expected. Total snow accumulations of 4 to 8
  inches, except 6 to 10 inches on ridge tops and elevations 
  above passes. Winds gusting as high as 35 mph.

* WHERE...Teton Valley, Big Hole Mountains, Caribou Range and Bear
  River Range including Tetonia, Driggs, Swan Valley, Wayan and
  Emigration Summit.

* WHEN...From midnight tonight to 6 AM MST Saturday.

* IMPACTS...Plan on slippery road conditions. Patchy blowing 
  snow could significantly reduce visibility. The hazardous 
  conditions could impact the morning or evening commute.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

The latest road conditions can be obtained by calling 5 1 1.

&&

$$

IDZ066-261200-
/O.NEW.KPIH.WW.Y.0015.210226T0300Z-210227T0600Z/
Centennial Mountains - Island Park-
Including the cities of Island Park and Kilgore
313 AM MST Thu Feb 25 2021

...WINTER WEATHER ADVISORY IN EFFECT FROM 8 PM THIS EVENING TO
11 PM MST FRIDAY...

* WHAT...Snow expected. Total snow accumulations of 3 to 7 inches
  with locally higher amounts on ridge tops and elevations above
  pass level. 

* WHERE...Island Park region including the Centennial Mountains.

* WHEN...From 8 PM this evening to 11 PM MST Friday.

* IMPACTS...Plan on slippery road conditions. Patchy blowing 
  snow could significantly reduce visibility. The hazardous 
  conditions could impact the morning or evening commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions can be obtained by calling 5 1 1.

&&

$$

For more information from the National Weather Service visit
https://weather.gov/pocatello
6 follow-up statements
743 
WWUS45 KPIH 252057
WSWPIH

URGENT - WINTER WEATHER MESSAGE
National Weather Service Pocatello ID
157 PM MST Thu Feb 25 2021


IDZ072-073-261100-
/O.CON.KPIH.WS.W.0005.210226T0100Z-210227T0500Z/
Sawtooth/Stanley Basin-Sun Valley Region-
Including the cities of Stanley, Ketchum, Sun Valley, and Galena
157 PM MST Thu Feb 25 2021

...WINTER STORM WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING
TO 10 PM MST FRIDAY...

* WHAT...Heavy snow expected. Total snow accumulations of 4 to 9 
  inches, except 6 to 11 inches on ridge tops and elevations 
  above passes.

* WHERE...Sawtooth and Stanley Basin and the Sun Valley Region, 
  including Ketchum, Sun Valley, and Stanley.

* WHEN...From 6 PM this evening to 10 PM MST Friday.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the morning or evening commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

The latest road conditions can be obtained by calling 5 1 1.

&&

$$

IDZ060-063>065-261100-
/O.CON.KPIH.WS.W.0005.210226T0700Z-210227T1300Z/
Bear River Range-Caribou Range-Big Hole Mountains-Teton Valley-
Including the cities of Emigration Summit, Wayan, Swan Valley, 
Victor, Ashton, Tetonia, and Driggs
157 PM MST Thu Feb 25 2021

...WINTER STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT
TO 6 AM MST SATURDAY...

* WHAT...Heavy snow expected. Total snow accumulations of 4 to 8 
  inches, except 6 to 10 inches on ridge tops and elevations 
  above passes. Winds gusting as high as 35 mph.

* WHERE...Teton Valley, Big Hole Mountains, Caribou Range and 
  Bear River Range including Tetonia, Driggs, Swan Valley, Wayan 
  and Emigration Summit.

* WHEN...From midnight tonight to 6 AM MST Saturday.

* IMPACTS...Plan on slippery road conditions. Patchy blowing 
  snow could significantly reduce visibility. The hazardous 
  conditions could impact the morning or evening commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

The latest road conditions can be obtained by calling 5 1 1.

&&

$$

IDZ053-056-058-062-261100-
/O.EXB.KPIH.WW.Y.0015.210226T1000Z-210227T0600Z/
Upper Snake River Plain-Southern Hills/Albion Mountains-
Marsh and Arbon Highlands-Blackfoot Mountains-
Including the cities of Idaho Falls, Rexburg, St. Anthony, 
Albion, Almo, Inkom, McCammon, Downey, Lava Hot Springs, Grace, 
Soda Springs, Henry, and Bone
157 PM MST Thu Feb 25 2021

...WINTER WEATHER ADVISORY IN EFFECT FROM 3 AM TO 11 PM MST
FRIDAY...

* WHAT...Snow expected. Total snow accumulations of up to 4 
  inches. Winds gusting as high as 40 mph.

* WHERE...Upper Snake River Plain, Blackfoot Mountains, Marsh and
  Arbon Highlands, and the Southern Hills/Albion Mountains
  including Idaho Falls, Rexburg, Bone, Soda Springs, Grace,
  McCammon, Albion and Almo.

* WHEN...From 3 AM to 11 PM MST Friday.

* IMPACTS...Plan on slippery road conditions. Areas of blowing 
  snow could significantly reduce visibility. The hazardous 
  conditions could impact the morning or evening commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions can be obtained by calling 5 1 1.

&&

$$

IDZ066-261100-
/O.CON.KPIH.WW.Y.0015.210226T0300Z-210227T0600Z/
Centennial Mountains - Island Park-
Including the cities of Island Park and Kilgore
157 PM MST Thu Feb 25 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 8 PM THIS
EVENING TO 11 PM MST FRIDAY...

* WHAT...Snow expected. Total snow accumulations of 2 to 7 inches
  with locally higher amounts on ridge tops and elevations above
  pass level.

* WHERE...Island Park region including the Centennial Mountains.

* WHEN...From 8 PM this evening to 11 PM MST Friday.

* IMPACTS...Plan on slippery road conditions. Patchy blowing 
  snow could significantly reduce visibility. The hazardous 
  conditions could impact the morning or evening commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions can be obtained by calling 5 1 1.

&&

$$

For more information from the National Weather Service visit
https://weather.gov/pocatello
413 
WWUS45 KPIH 261036
WSWPIH

URGENT - WINTER WEATHER MESSAGE
National Weather Service Pocatello ID
336 AM MST Fri Feb 26 2021

IDZ072-073-270500-
/O.CON.KPIH.WS.W.0005.000000T0000Z-210227T0500Z/
Sawtooth/Stanley Basin-Sun Valley Region-
Including the cities of Stanley, Ketchum, Sun Valley, and Galena
336 AM MST Fri Feb 26 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 PM MST THIS
EVENING...

* WHAT...Heavy snow expected. Total snow accumulations of 4 to 9 
  inches, except 6 to 11 inches on ridge tops and elevations 
  above passes.

* WHERE...Sawtooth and Stanley Basin and the Sun Valley Region, 
  including Ketchum, Sun Valley, and Stanley.

* WHEN...From 6 PM this evening to 10 PM MST Friday.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the morning or evening commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

The latest road conditions can be obtained by calling 5 1 1.

&&

$$

IDZ060-063>065-271200-
/O.CON.KPIH.WS.W.0005.000000T0000Z-210227T1300Z/
Bear River Range-Caribou Range-Big Hole Mountains-Teton Valley-
Including the cities of Emigration Summit, Wayan, Swan Valley, 
Victor, Ashton, Tetonia, and Driggs
336 AM MST Fri Feb 26 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM MST
SATURDAY...

* WHAT...Heavy snow expected. Total snow accumulations of 4 to 8 
  inches, except 6 to 10 inches on ridge tops and elevations 
  above passes. Winds gusting as high as 35 mph.

* WHERE...Teton Valley, Big Hole Mountains, Caribou Range and 
  Bear River Range including Tetonia, Driggs, Swan Valley, Wayan 
  and Emigration Summit.

* WHEN...From midnight tonight to 6 AM MST Saturday.

* IMPACTS...Plan on slippery road conditions. Patchy blowing 
  snow could significantly reduce visibility. The hazardous 
  conditions could impact the morning or evening commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

The latest road conditions can be obtained by calling 5 1 1.

&&

$$

IDZ066-270600-
/O.CON.KPIH.WW.Y.0015.000000T0000Z-210227T0600Z/
Centennial Mountains - Island Park-
Including the cities of Island Park and Kilgore
336 AM MST Fri Feb 26 2021

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

* WHAT...Snow expected. Total snow accumulations of 2 to 7 
  inches with locally higher amounts on ridge tops and 
  elevations above pass level.

* WHERE...Island Park region including the Centennial Mountains.

* WHEN...From 8 PM this evening to 11 PM MST Friday.

* IMPACTS...Plan on slippery road conditions. Patchy blowing 
  snow could significantly reduce visibility. The hazardous 
  conditions could impact the morning or evening commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions can be obtained by calling 5 1 1.

&&

$$

IDZ053-056-058-062-270600-
/O.CON.KPIH.WW.Y.0015.000000T0000Z-210227T0600Z/
Upper Snake River Plain-Southern Hills/Albion Mountains-
Marsh and Arbon Highlands-Blackfoot Mountains-
Including the cities of Idaho Falls, Rexburg, St. Anthony, 
Albion, Almo, Inkom, McCammon, Downey, Lava Hot Springs, Grace, 
Soda Springs, Henry, and Bone
336 AM MST Fri Feb 26 2021

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

* WHAT...Snow expected. Total snow accumulations of up to 4 
  inches. Winds gusting as high as 40 mph.

* WHERE...Upper Snake River Plain, Blackfoot Mountains, Marsh 
  and Arbon Highlands, and the Southern Hills/Albion Mountains 
  including Idaho Falls, Rexburg, Bone, Soda Springs, Grace, 
  McCammon, Albion and Almo.

* WHEN...From 3 AM to 11 PM MST Friday.

* IMPACTS...Plan on slippery road conditions. Areas of blowing 
  snow could significantly reduce visibility. The hazardous 
  conditions could impact the morning or evening commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions can be obtained by calling 5 1 1.

&&

$$

For more information from the National Weather Service visit
https://weather.gov/pocatello
023 
WWUS45 KPIH 262054
WSWPIH

URGENT - WINTER WEATHER MESSAGE
National Weather Service Pocatello ID
154 PM MST Fri Feb 26 2021


IDZ072-073-270500-
/O.CON.KPIH.WS.W.0005.000000T0000Z-210227T0500Z/
Sawtooth/Stanley Basin-Sun Valley Region-
Including the cities of Stanley, Ketchum, Sun Valley, and Galena
154 PM MST Fri Feb 26 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 PM MST THIS
EVENING...

* WHAT...Heavy snow expected. Total snow accumulations of 4 to 9 
  inches, except 6 to 11 inches on ridge tops and elevations 
  above passes.

* WHERE...Sawtooth and Stanley Basin and the Sun Valley Region, 
  including Ketchum, Sun Valley, and Stanley.

* WHEN...Until 10 PM MST tonight.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the morning or evening commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

The latest road conditions can be obtained by calling 5 1 1.

&&

$$

IDZ060-063>065-270500-
/O.CON.KPIH.WS.W.0005.000000T0000Z-210227T1300Z/
Bear River Range-Caribou Range-Big Hole Mountains-Teton Valley-
Including the cities of Emigration Summit, Wayan, Swan Valley, 
Victor, Ashton, Tetonia, and Driggs
154 PM MST Fri Feb 26 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM MST
SATURDAY...

* WHAT...Heavy snow expected. Total snow accumulations of 4 to 8 
  inches, except 6 to 10 inches on ridge tops and elevations 
  above passes. Winds gusting as high as 35 mph.

* WHERE...Teton Valley, Big Hole Mountains, Caribou Range and 
  Bear River Range including Tetonia, Driggs, Swan Valley, Wayan 
  and Emigration Summit.

* WHEN...Until 6 AM MST Saturday.

* IMPACTS...Plan on slippery road conditions. Patchy blowing 
  snow could significantly reduce visibility. The hazardous 
  conditions could impact the morning or evening commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

The latest road conditions can be obtained by calling 5 1 1.

&&

$$

IDZ066-270500-
/O.CON.KPIH.WW.Y.0015.000000T0000Z-210227T0600Z/
Centennial Mountains - Island Park-
Including the cities of Island Park and Kilgore
154 PM MST Fri Feb 26 2021

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

* WHAT...Snow expected. Total snow accumulations of 2 to 7 
  inches with locally higher amounts on ridge tops and 
  elevations above pass level.

* WHERE...Island Park region including the Centennial Mountains.

* WHEN...Until 11 PM MST tonight.

* IMPACTS...Plan on slippery road conditions. Patchy blowing 
  snow could significantly reduce visibility. The hazardous 
  conditions could impact the morning or evening commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions can be obtained by calling 5 1 1.

&&

$$

IDZ053-056-058-062-270500-
/O.CON.KPIH.WW.Y.0015.000000T0000Z-210227T0600Z/
Upper Snake River Plain-Southern Hills/Albion Mountains-
Marsh and Arbon Highlands-Blackfoot Mountains-
Including the cities of Idaho Falls, Rexburg, St. Anthony, 
Albion, Almo, Inkom, McCammon, Downey, Lava Hot Springs, Grace, 
Soda Springs, Henry, and Bone
154 PM MST Fri Feb 26 2021

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

* WHAT...Snow expected. Total snow accumulations of up to 4 
  inches. Winds gusting as high as 40 mph.

* WHERE...Upper Snake River Plain, Blackfoot Mountains, Marsh 
  and Arbon Highlands, and the Southern Hills/Albion Mountains 
  including Idaho Falls, Rexburg, Bone, Soda Springs, Grace, 
  McCammon, Albion and Almo.

* WHEN...Until 11 PM MST tonight.

* IMPACTS...Plan on slippery road conditions. Areas of blowing 
  snow could significantly reduce visibility. The hazardous 
  conditions could impact the morning or evening commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions can be obtained by calling 5 1 1.

&&

$$

For more information from the National Weather Service visit
https://weather.gov/pocatello
129 
WWUS45 KPIH 270413
WSWPIH

URGENT - WINTER WEATHER MESSAGE
National Weather Service Pocatello ID
913 PM MST Fri Feb 26 2021

IDZ072-073-270515-
/O.CAN.KPIH.WS.W.0005.000000T0000Z-210227T0500Z/
Sawtooth/Stanley Basin-Sun Valley Region-
Including the cities of Stanley, Ketchum, Sun Valley, and Galena
913 PM MST Fri Feb 26 2021

...WINTER STORM WARNING IS CANCELLED...

Most snow has ended therefore the warning is cancelled.

$$

IDZ056-270515-
/O.CAN.KPIH.WW.Y.0015.000000T0000Z-210227T0600Z/
Southern Hills/Albion Mountains-
Including the cities of Albion and Almo
913 PM MST Fri Feb 26 2021

...WINTER WEATHER ADVISORY IS CANCELLED...

Most snow has ended therefore the advisory is cancelled.

$$

IDZ060-063>065-271300-
/O.CON.KPIH.WS.W.0005.000000T0000Z-210227T1300Z/
Bear River Range-Caribou Range-Big Hole Mountains-Teton Valley-
Including the cities of Emigration Summit, Wayan, Swan Valley, 
Victor, Ashton, Tetonia, and Driggs
913 PM MST Fri Feb 26 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM MST
SATURDAY...

* WHAT...Snow with blowing and drifting snow. Additional snow
  amounts of up to 2 inches.

* WHERE...Teton Valley, Big Hole Mountains, Caribou Range and 
  Bear River Range including Tetonia, Driggs, Swan Valley, Wayan 
  and Emigration Summit..

* WHEN...Until 6 AM MST Saturday.

* IMPACTS...Plan on slippery road conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

The latest road conditions can be obtained by calling 5 1 1.

&&

$$

IDZ066-271300-
/O.EXT.KPIH.WW.Y.0015.000000T0000Z-210227T1300Z/
Centennial Mountains - Island Park-
Including the cities of Island Park and Kilgore
913 PM MST Fri Feb 26 2021

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 6 AM MST
SATURDAY...

* WHAT...Snow with blowing and drifting snow. Additional snow 
  accumulations of up to two inches.

* WHERE...Island Park region including the Centennial Mountains.

* WHEN...Until 6 AM MST Saturday.

* IMPACTS...Plan on slippery road conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions can be obtained by calling 5 1 1.

&&

$$

IDZ053-058-062-271300-
/O.EXT.KPIH.WW.Y.0015.000000T0000Z-210227T1300Z/
Upper Snake River Plain-Marsh and Arbon Highlands-
Blackfoot Mountains-
Including the cities of Idaho Falls, Rexburg, St. Anthony, Inkom,
McCammon, Downey, Lava Hot Springs, Grace, Soda Springs, Henry, 
and Bone
913 PM MST Fri Feb 26 2021

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 6 AM MST
SATURDAY...

* WHAT...Snow with blowing and drifting snow. Additional snow 
  accumulations of up to one inch. Winds gusting as high as 35 
  mph.

* WHERE...Upper Snake River Plain, Blackfoot Mountains, Marsh and
  Arbon Highlands, including Idaho Falls, Rexburg, Bone, Soda
  Springs, Grace, McCammon.

* WHEN...Until 6 AM MST Saturday.

* IMPACTS...Plan on slippery road conditions. Patchy blowing 
  snow could significantly reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions can be obtained by calling 5 1 1.

&&

$$

For more information from the National Weather Service visit
https://weather.gov/pocatello
098 
WWUS45 KPIH 271242
WSWPIH

URGENT - WINTER WEATHER MESSAGE
National Weather Service Pocatello ID
542 AM MST Sat Feb 27 2021

IDZ060-063>065-271700-
/O.EXT.KPIH.WS.W.0005.000000T0000Z-210227T1700Z/
Bear River Range-Caribou Range-Big Hole Mountains-Teton Valley-
Including the cities of Emigration Summit, Wayan, Swan Valley, 
Victor, Ashton, Tetonia, and Driggs
542 AM MST Sat Feb 27 2021

...WINTER STORM WARNING NOW IN EFFECT UNTIL 10 AM MST THIS
MORNING...

* WHAT...Snow with blowing and drifting snow. Additional snow
  amounts of up to 2 inches especially at higher elevations. 

* WHERE...Teton Valley, Big Hole Mountains, Caribou Range and 
  Bear River Range including Tetonia, Driggs, Swan Valley, Wayan 
  and Emigration Summit.

* WHEN...Until 10 AM MST this morning.

* IMPACTS...Plan on slippery road conditions. Some roads may
  remained closed until later this morning when the wind begins to
  subside.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

The latest road conditions can be obtained by calling 5 1 1.

&&

$$

IDZ066-271700-
/O.EXT.KPIH.WW.Y.0015.000000T0000Z-210227T1700Z/
Centennial Mountains - Island Park-
Including the cities of Island Park and Kilgore
542 AM MST Sat Feb 27 2021

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 10 AM MST THIS
MORNING...

* WHAT...Snow with blowing and drifting snow. Additional snow
  accumulations around 1 inch.

* WHERE...Island Park region including the Centennial Mountains.

* WHEN...Until 10 AM MST this morning.

* IMPACTS...Plan on slippery road conditions. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling.

The latest road conditions can be obtained by calling 5 1 1.

&&

$$

IDZ053-058-062-271700-
/O.EXT.KPIH.WW.Y.0015.000000T0000Z-210227T1700Z/
Upper Snake River Plain-Marsh and Arbon Highlands-
Blackfoot Mountains-
Including the cities of Idaho Falls, Rexburg, St. Anthony, Inkom,
McCammon, Downey, Lava Hot Springs, Grace, Soda Springs, Henry, 
and Bone
542 AM MST Sat Feb 27 2021

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 10 AM MST THIS
MORNING...

* WHAT...Snow with blowing and drifting snow. Additional snow
  accumulations up to 2 inches a higher elevations. Localized 
  accumulations in the valleys near 1 inch.
 
* WHERE...Upper Snake River Plain, Blackfoot Mountains, Marsh 
  and Arbon Highlands, including Idaho Falls, Rexburg, Bone, 
  Soda Springs, Grace, McCammon.

* WHEN...Until 10 AM MST this morning.

* IMPACTS...Plan on slippery road conditions. Some roads may be
  closed or remain closed until later this morning when the wind
  subsides. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling.

The latest road conditions can be obtained by calling 5 1 1.

&&

$$

For more information from the National Weather Service visit
https://weather.gov/pocatello
067 
WWUS45 KPIH 271459
WSWPIH

URGENT - WINTER WEATHER MESSAGE
National Weather Service Pocatello ID
759 AM MST Sat Feb 27 2021


IDZ060-063>065-271600-
/O.CAN.KPIH.WS.W.0005.000000T0000Z-210227T1700Z/
Bear River Range-Caribou Range-Big Hole Mountains-Teton Valley-
Including the cities of Emigration Summit, Wayan, Swan Valley, 
Victor, Ashton, Tetonia, and Driggs
759 AM MST Sat Feb 27 2021

...WINTER STORM WARNING IS CANCELLED...

While light showers are briefly possible today; significant 
impacts from winter weather have ended for the day. We will cancel
the Winter Storm Warning. 

$$

IDZ053-058-062-066-271600-
/O.CAN.KPIH.WW.Y.0015.000000T0000Z-210227T1700Z/
Upper Snake River Plain-Marsh and Arbon Highlands-
Blackfoot Mountains-Centennial Mountains - Island Park-
Including the cities of Idaho Falls, Rexburg, St. Anthony, Inkom,
McCammon, Downey, Lava Hot Springs, Grace, Soda Springs, Henry, 
Bone, Island Park, and Kilgore
759 AM MST Sat Feb 27 2021

...WINTER WEATHER ADVISORY IS CANCELLED...

While light showers are briefly possible today; significant 
impacts from winter weather have ended for the day. We will cancel
the Winter Weather Advisory. 

$$

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

The office that day

Everything else NWS Pocatello, ID issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Feb 25, 3:13 AM MSTWinter Weather AdvisoryPIHBannock, Bingham, Bonneville, Caribou, Cassia, Clark and 5 more53 hr
Feb 25, 1:57 PM MSTWind AdvisoryPIHBannock, Bingham, Blaine, Bonneville, Butte, Cassia and 4 more29 hr

Nearby

Winter Storm Warnings in Idaho, 2021Every winter storm warning in 2021

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.