Alert archive / Idaho / Wind Chill Warnings in 2021
Wind Chill Warning 2, NWS Pocatello, ID
NWS Pocatello, ID issued this wind chill warning at Dec 27, 2021, 1:00 PM MST for 6 counties in Idaho. It took effect at Dec 28, 2021, 12:00 AM MST. It was in force for 10 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
- Dec 27, 2021, 1:00 PM MST (20:00 UTC)
- In effect from
- Dec 28, 2021, 12:00 AM MST
- Expired
- Dec 28, 2021, 10:00 AM MST
- In force
- 10 hr
- Issued by
- NWS Pocatello, ID
Counties Bingham County, ID, Bonneville County, ID, Butte County, ID, Clark County, ID, Custer County, ID, Jefferson County, ID
The radar
The Pocatello radar (KSFX), 75 km from the middle of the area, began a volume at 20:00 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
| Time | Report | Where | Remark |
|---|---|---|---|
| Dec 28, 7:00 AM MST | SNOW 3.8 | 2 Ne Rigby, ID | 6 DAY EVENT TOTAL. |
| Dec 28, 7:00 AM MST | SNOW 3.9 | 5 Wsw Ririe, ID | 6 DAY EVENT TOTAL. |
| Dec 28, 7:00 AM MST | SNOW 11.5 | Stanley, ID | 6 DAY EVENT TOTAL. |
| Dec 28, 7:28 AM MST | SNOW 2 | Howe, ID | 6 DAY EVENT TOTAL. |
| Dec 28, 8:00 AM MST | SNOW 7 | 2 E Swan Valley, ID | 6 DAY EVENT TOTAL. |
| Dec 28, 8:00 AM MST | SNOW 18 | 3 Nnw Craters Of Moon, ID | 6 DAY EVENT TOTAL. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Boise Airport, ID (KBOI), launched 12:00Z, 8.0 hours before the alert went out and 283 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 938 m above ground
- 0-6 km bulk shear
- 76 kt
- 0-1 km storm-relative helicity
- 38 m²/s²
- 0-3 km storm-relative helicity
- -139 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
294 WWUS45 KPIH 272000 WSWPIH URGENT - WINTER WEATHER MESSAGE National Weather Service Pocatello ID 100 PM MST Mon Dec 27 2021 IDZ052-067-280400- /O.NEW.KPIH.WC.W.0002.211228T0700Z-211228T1700Z/ /O.CON.KPIH.WW.Y.0020.000000T0000Z-211228T0400Z/ Arco/Mud Lake Desert-Beaverhead - Lemhi Highlands- Including the cities of Mud Lake, INL, Craters of the Moon NM, Dubois, Spencer, Edie School, and Small 100 PM MST Mon Dec 27 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 9 PM MST THIS EVENING... ...WIND CHILL WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 10 AM MST TUESDAY... * WHAT...For the For the Winter Weather Advisory, snow. Little accumulation expected, however wind gusts as high as 35 mph are expected to produce some blowing and drifting snow. For the Wind Chill Warning, dangerously cold wind chills expected. Wind chills dropping to near 30 below zero below 7000 feet. * WHERE...Arco Desert and the Beaverhead Lemhi Highlands, including the cities of Mud Lake, INL, Craters of the Moon, Dubois, Spencer, Edie School, and Small. * WHEN...For the Wind Chill Warning, from midnight tonight to 10 AM MST Tuesday. For the Winter Weather Advisory, until 9 PM MST this evening. * IMPACTS...Plan on slippery road conditions. Blowing and drifting snow could significantly reduce visibility and create road closures. The dangerously cold wind chills could cause frostbite on exposed skin in as little as 10 minutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Avoid outside activities if possible. When outside, make sure you wear appropriate clothing, a hat, and gloves. Slow down and use caution while traveling. The latest road conditions can be obtained by calling 5 1 1. && $$ IDZ068-280400- /O.NEW.KPIH.WC.W.0002.211228T0700Z-211228T1700Z/ Lost River Valley- Including the cities of Howe, Arco, Mackay, and Chilly 100 PM MST Mon Dec 27 2021 ...WIND CHILL WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 10 AM MST TUESDAY... * WHAT...Dangerously cold wind chills expected. Wind chills dropping to near 30 below zero below 7000 feet. * WHERE...Lost River Valley, including the cities of Howe, Arco, Mackay, and Chilly. * WHEN...From midnight tonight to 10 AM MST Tuesday. * IMPACTS...The cold wind chills could cause frostbite on exposed skin in as little as 30 minutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Avoid outside activities if possible. When outside, make sure you wear appropriate clothing, a hat, and gloves. && $$ IDZ060-280400- /O.CON.KPIH.WS.W.0009.000000T0000Z-211228T0400Z/ Bear River Range- Including the city of Emigration Summit 100 PM MST Mon Dec 27 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 9 PM MST THIS EVENING... * WHAT...Snow accumulations of 2 to 5 inches with amounts up to 10 inches on higher peaks. Wind gusts to 35 mph will produce blowing and drifting snow. * WHERE...Idaho portion of the northern Wasatch Mountains, including Emigration Summit. * WHEN...Until 9 PM MST this evening. * IMPACTS...Travel could be very difficult to impossible. Blowing and drifting snow could significantly reduce visibility and create temporary road closures. 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. && $$ IDZ064-066-280400- /O.CON.KPIH.WW.Y.0020.000000T0000Z-211228T0400Z/ Big Hole Mountains-Centennial Mountains - Island Park- Including the cities of Victor, Island Park, and Kilgore 100 PM MST Mon Dec 27 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 9 PM MST THIS EVENING... * WHAT...Additional accumulations of 1 to 3 inches. Wind gusts up to 35 mph will create some blowing and drifting snow. * WHERE...Centennial and Big Hole Mountains including Targhee and Pine Creek Passes. Portions of U S Route 20 and State Highway 87. * WHEN...Until 9 PM MST this evening. * IMPACTS...Travel may remain difficult to impossible at times. Blowing and drifting snow will significantly reduce visibility and drifting snow create temporary road closures. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions can be obtained by calling 5 1 1. && $$ IDZ061>063-065-280400- /O.CON.KPIH.WW.Y.0020.000000T0000Z-211228T0400Z/ Bear Lake Valley-Blackfoot Mountains-Caribou Range-Teton Valley- Including the cities of St. Charles, Montpelier, Georgetown, Grace, Soda Springs, Henry, Bone, Wayan, Swan Valley, Ashton, Tetonia, and Driggs 100 PM MST Mon Dec 27 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 9 PM MST THIS EVENING... * WHAT...Additional snow accumulations of 2 to 5 inches. Wind gusts up to 35 mph will produce blowing and drifting snow. * WHERE...Teton Valley south through the Caribou Mountains to Bear Lake Valley, including Georgetown Summit. * WHEN...Until 9 PM MST this evening. * IMPACTS...Travel may remain difficult to impossible at times. Blowing and drifting snow could significantly reduce visibility and create temporary road closures. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions can be obtained by calling 5 1 1. && $$ IDZ053>059-280400- /O.CON.KPIH.WW.Y.0020.000000T0000Z-211228T0400Z/ Upper Snake River Plain-Lower Snake River Plain- Eastern Magic Valley-Southern Hills/Albion Mountains- Raft River Region-Marsh and Arbon Highlands- Franklin/Eastern Oneida Region- Including the cities of Idaho Falls, Rexburg, St. Anthony, Pocatello, Blackfoot, American Falls, Shelley, Fort Hall, Burley, Rupert, Heyburn, Oakley, Albion, Almo, Malta, Rockland, Holbrook, Inkom, McCammon, Downey, Lava Hot Springs, Malad, Preston, and Thatcher 100 PM MST Mon Dec 27 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 9 PM MST THIS EVENING... * WHAT...Additional snow accumulations of 1 to 4 inches. Wind gusts up to 35 mph will produce blowing and drifting snow. * WHERE...Interstate 84, 86, and 15 corridor and the Southern Highlands including Malad and Sweetzer Summits. * WHEN...Until 9 PM MST this evening. * IMPACTS...Travel may remain difficult to impossible at times. Blowing and drifting snow could significantly reduce visibility and create temporary road closures. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions can be obtained by calling 5 1 1. && $$ IDZ051-280400- /O.CON.KPIH.WW.Y.0020.000000T0000Z-211228T0400Z/ Shoshone/Lava Beds- Including the cities of Shoshone, Richfield, and Carey 100 PM MST Mon Dec 27 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 9 PM MST THIS EVENING... * WHAT...Little accumulation expected, however wind gusts as high as 35 mph are expected to produce some blowing and drifting snow. * WHERE...The Shoshone Lava Beds, including the cities of Shoshone, Richfield, and Carey. * WHEN...Until 9 PM MST this evening. * IMPACTS...Travel may remain difficult at times. Blowing and drifting snow could significantly reduce visibility and create temporary road closures. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions can be obtained by calling 5 1 1. && $$ For more information from the National Weather Service visit https://weather.gov/pocatello
3 follow-up statements
891 WWUS45 KPIH 280357 WSWPIH URGENT - WINTER WEATHER MESSAGE National Weather Service Pocatello ID 857 PM MST Mon Dec 27 2021 IDZ052-067-281215- /O.CAN.KPIH.WW.Y.0020.000000T0000Z-211228T0400Z/ /O.CON.KPIH.WC.W.0002.211228T0700Z-211228T1700Z/ Arco/Mud Lake Desert-Beaverhead - Lemhi Highlands- Including the cities of Mud Lake, INL, Craters of the Moon NM, Dubois, Spencer, Edie School, and Small 857 PM MST Mon Dec 27 2021 ...WIND CHILL WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 10 AM MST TUESDAY... ...WINTER WEATHER ADVISORY IS CANCELLED... * WHAT...The Winter Weather Advisory has been cancelled, but wind gusts as high as 35 mph are expected to produce some blowing and drifting snow. For the Wind Chill Warning, dangerously cold wind chills expected. Wind chills dropping to near 30 below zero below 7000 feet. * WHERE...Arco Desert and the Beaverhead Lemhi Highlands, including the cities of Mud Lake, INL, Craters of the Moon, Dubois, Spencer, Edie School, and Small. * WHEN...From midnight tonight to 10 AM MST Tuesday. * IMPACTS...Plan on slippery road conditions. Blowing and drifting snow could significantly reduce visibility and create road closures. The dangerously cold wind chills could cause frostbite on exposed skin in as little as 10 minutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Avoid outside activities if possible. When outside, make sure you wear appropriate clothing, a hat, and gloves. Slow down and use caution while traveling. The latest road conditions can be obtained by calling 5 1 1. && $$ IDZ051-053>059-066-280500- /O.CAN.KPIH.WW.Y.0020.000000T0000Z-211228T0400Z/ Shoshone/Lava Beds-Upper Snake River Plain- Lower Snake River Plain-Eastern Magic Valley- Southern Hills/Albion Mountains-Raft River Region- Marsh and Arbon Highlands-Franklin/Eastern Oneida Region- Centennial Mountains - Island Park- Including the cities of Shoshone, Richfield, Carey, Idaho Falls, Rexburg, St. Anthony, Pocatello, Blackfoot, American Falls, Shelley, Fort Hall, Burley, Rupert, Heyburn, Oakley, Albion, Almo, Malta, Rockland, Holbrook, Inkom, McCammon, Downey, Lava Hot Springs, Malad, Preston, Thatcher, Island Park, and Kilgore 857 PM MST Mon Dec 27 2021 ...WINTER WEATHER ADVISORY IS CANCELLED... Some snow showers will linger through the early part of Tuesday, but conditions have greatly improved this evening. Very cold temperatures are expected Tuesday so precautions should be taken such as appropriate winter clothing and limited time outdoors. $$ IDZ060-281200- /O.EXT.KPIH.WS.W.0009.000000T0000Z-211228T1200Z/ Bear River Range- Including the city of Emigration Summit 857 PM MST Mon Dec 27 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST TUESDAY... * WHAT...Additional snow accumulations of 1 to 3 inches with amounts up to 5 inches on higher peaks. Wind gusts to 35 mph will produce blowing and drifting snow. * WHERE...Idaho portion of the northern Wasatch Mountains, including Emigration Summit. * WHEN...Until 5 AM MST Tuesday. * IMPACTS...Travel could be very difficult to impossible. Blowing and drifting snow could significantly reduce visibility and create temporary road closures. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions can be obtained by calling 5 1 1. && $$ IDZ068-281215- /O.CON.KPIH.WC.W.0002.211228T0700Z-211228T1700Z/ Lost River Valley- Including the cities of Howe, Arco, Mackay, and Chilly 857 PM MST Mon Dec 27 2021 ...WIND CHILL WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 10 AM MST TUESDAY... * WHAT...Dangerously cold wind chills expected. Wind chills dropping to near 30 below zero below 7000 feet. * WHERE...Lost River Valley, including the cities of Howe, Arco, Mackay, and Chilly. * WHEN...From midnight tonight to 10 AM MST Tuesday. * IMPACTS...The cold wind chills could cause frostbite on exposed skin in as little as 30 minutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Avoid outside activities if possible. When outside, make sure you wear appropriate clothing, a hat, and gloves. && $$ IDZ064-281200- /O.EXT.KPIH.WW.Y.0020.000000T0000Z-211228T1200Z/ Big Hole Mountains- Including the city of Victor 857 PM MST Mon Dec 27 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST TUESDAY... * WHAT...Additional accumulations of 1 to 3 inches. Wind gusts up to 35 mph will create some blowing and drifting snow. * WHERE...Centennial and Big Hole Mountains including Targhee and Pine Creek Passes. Portions of U S Route 20 and State Highway 87. * WHEN...Until 5 AM MST Tuesday. * IMPACTS...Travel may remain difficult to impossible at times. Blowing and drifting snow will significantly reduce visibility and drifting snow create temporary road closures. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions can be obtained by calling 5 1 1. && $$ IDZ061>063-065-281200- /O.EXT.KPIH.WW.Y.0020.000000T0000Z-211228T1200Z/ Bear Lake Valley-Blackfoot Mountains-Caribou Range-Teton Valley- Including the cities of St. Charles, Montpelier, Georgetown, Grace, Soda Springs, Henry, Bone, Wayan, Swan Valley, Ashton, Tetonia, and Driggs 857 PM MST Mon Dec 27 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST TUESDAY... * WHAT...Additional snow accumulations of 1 to 4 inches. Wind gusts up to 35 mph will produce blowing and drifting snow. * WHERE...Teton Valley south through the Caribou Mountains to Bear Lake Valley, including Georgetown Summit. * WHEN...Until 5 AM MST Tuesday. * IMPACTS...Travel may remain difficult to impossible at times. Blowing and drifting snow could significantly reduce visibility and create temporary road closures. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions can be obtained by calling 5 1 1. && $$ For more information from the National Weather Service visit https://weather.gov/pocatello
265 WWUS45 KPIH 280900 WSWPIH URGENT - WINTER WEATHER MESSAGE National Weather Service Pocatello ID 200 AM MST Tue Dec 28 2021 IDZ060-281000- /O.CAN.KPIH.WS.W.0009.000000T0000Z-211228T1200Z/ Bear River Range- Including the city of Emigration Summit 200 AM MST Tue Dec 28 2021 ...WINTER STORM WARNING IS CANCELED... Only light flurries in the Big Hole mountains continue at this hour, so the bulk of the precipitation has fallen, and wind has subsided to the point of only light drifting snow. The Winter Storm Warning has been canceled. $$ IDZ061>065-281000- /O.CAN.KPIH.WW.Y.0020.000000T0000Z-211228T1200Z/ Bear Lake Valley-Blackfoot Mountains-Caribou Range- Big Hole Mountains-Teton Valley- Including the cities of St. Charles, Montpelier, Georgetown, Grace, Soda Springs, Henry, Bone, Wayan, Swan Valley, Victor, Ashton, Tetonia, and Driggs 200 AM MST Tue Dec 28 2021 ...WINTER WEATHER ADVISORY IS CANCELLED... Only light flurries in the Big Hole mountains continue at this hour, so the bulk of the precipitation has fallen, and wind has subsided to the point of only light drifting snow. The Winter Storm Warning has been canceled. $$ IDZ052-067-068-281700- /O.CON.KPIH.WC.W.0002.000000T0000Z-211228T1700Z/ Arco/Mud Lake Desert-Beaverhead - Lemhi Highlands- Lost River Valley- Including the cities of Mud Lake, INL, Craters of the Moon NM, Dubois, Spencer, Edie School, Small, Howe, Arco, Mackay, and Chilly 200 AM MST Tue Dec 28 2021 ...WIND CHILL WARNING REMAINS IN EFFECT UNTIL 10 AM MST THIS MORNING... * WHAT...Dangerously cold wind chills expected. Wind chills dropping to near 30 below zero below 7000 feet. * WHERE...Lost River Valley, including the cities of Howe, Arco, Mackay, and Chilly. * WHEN...From midnight tonight to 10 AM MST Tuesday. * IMPACTS...The cold wind chills could cause frostbite on exposed skin in as little as 30 minutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Avoid outside activities if possible. When outside, make sure you wear appropriate clothing, a hat, and gloves. && $$ For more information from the National Weather Service visit https://weather.gov/pocatello
708 WWUS45 KPIH 281711 WSWPIH URGENT - WINTER WEATHER MESSAGE National Weather Service Pocatello ID 1011 AM MST Tue Dec 28 2021 IDZ052-067-068-281815- /O.EXP.KPIH.WC.W.0002.000000T0000Z-211228T1700Z/ Arco/Mud Lake Desert-Beaverhead - Lemhi Highlands- Lost River Valley- Including the cities of Mud Lake, INL, Craters of the Moon NM, Dubois, Spencer, Edie School, Small, Howe, Arco, Mackay, and Chilly 1011 AM MST Tue Dec 28 2021 ...WIND CHILL WARNING HAS EXPIRED... Wind chills have risen and are above minus 20 in most locations across the warned area. Therefore, the warning has expired. $$ For more information from the National Weather Service visit https://weather.gov/pocatello
Nearby
Wind Chill Warnings in Idaho, 2021Every wind chill 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.