Alert archive / Montana / Wind Chill Warnings in 2022
Wind Chill Warning 1, NWS Missoula, MT
NWS Missoula, MT issued this wind chill warning at Feb 21, 2022, 5:11 AM MST for 7 counties in Montana. It took effect at Feb 21, 2022, 9:59 AM MST. It was in force for 25 hr. 3 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 21, 2022, 5:11 AM MST (12:11 UTC)
- In effect from
- Feb 21, 2022, 9:59 AM MST
- Expired
- Feb 22, 2022, 11:00 AM MST
- In force
- 25 hr
- Issued by
- NWS Missoula, MT
Counties Deer Lodge County, MT, Flathead County, MT, Granite County, MT, Lake County, MT, Missoula County, MT, Powell County, MT, Silver Bow County, MT
The radar
The Missoula radar (KMSX), 44 km from the middle of the area, began a volume at 12:15 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 |
|---|---|---|---|
| Feb 21, 11:48 AM MST | SNOW 4 | 2 Sw Newcomb, MT | |
| Feb 21, 11:49 AM MST | SNOW 2 | 8 N Finley Point, MT | |
| Feb 21, 1:27 PM MST | SNOW 3 | 2 Sw Marion, MT |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Great_falls, MT (KTFX), launched 12:00Z, 0.2 hours before the alert went out and 225 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
- 698 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 17 m²/s²
- 0-3 km storm-relative helicity
- 38 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
340
WWUS45 KMSO 211211
WSWMSO
URGENT - WINTER WEATHER MESSAGE
National Weather Service Missoula MT
511 AM MST Mon Feb 21 2022
MTZ002-221215-
/O.NEW.KMSO.WC.W.0001.220222T0600Z-220222T1800Z/
/O.NEW.KMSO.WC.Y.0002.220221T1800Z-220222T0600Z/
/O.EXT.KMSO.WS.W.0006.000000T0000Z-220221T1800Z/
West Glacier Region-
511 AM MST Mon Feb 21 2022
...WINTER STORM WARNING NOW IN EFFECT UNTIL 11 AM MST THIS
MORNING...
...WIND CHILL ADVISORY IN EFFECT FROM 11 AM THIS MORNING TO 11 PM
MST THIS EVENING...
...WIND CHILL WARNING IN EFFECT FROM 11 PM THIS EVENING TO 11 AM
MST TUESDAY...
* WHAT...For the Winter Storm Warning, heavy snow. Additional
snow accumulations of up to one inch. Winds gusting as high as
35 mph. For the Wind Chill Warning, dangerously cold wind
chills expected. Wind chills 30 to 40 below zero. For the
Wind Chill Advisory, very cold wind chills expected. Wind
chills as low as 25 below zero.
* WHERE...Bad Rock Canyon, Essex, Highway 83 Bigfork to Swan
Lake, Marias Pass, and Polebridge.
* WHEN...For the Winter Storm Warning, until 11 AM MST this
morning. For the Wind Chill Warning, from 11 PM this evening
to 11 AM MST Tuesday. For the Wind Chill Advisory, from 11 AM
this morning to 11 PM MST this evening.
* IMPACTS...Travel could be affected. Patchy blowing snow could
significantly reduce visibility. The dangerously cold wind
chills could cause frostbite on exposed skin in as little as 5
minutes.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency.
Avoid outside activities if possible. When outside, make sure you
wear appropriate clothing, a hat, and gloves.
Use caution while traveling outside. Wear appropriate clothing, a
hat, and gloves.
The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.
&&
$$
MTZ007-221215-
/O.NEW.KMSO.WC.W.0001.220222T0600Z-220222T1800Z/
/O.NEW.KMSO.WC.Y.0002.220221T1800Z-220222T0600Z/
/O.CON.KMSO.WS.W.0006.000000T0000Z-220221T1800Z/
Butte/Blackfoot Region-
511 AM MST Mon Feb 21 2022
...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST THIS
MORNING...
...WIND CHILL ADVISORY IN EFFECT FROM 11 AM THIS MORNING TO 11 PM
MST THIS EVENING...
...WIND CHILL WARNING IN EFFECT FROM 11 PM THIS EVENING TO 11 AM
MST TUESDAY...
* WHAT...For the Winter Storm Warning, heavy snow. Additional
snow accumulations of up to one inch. For the Wind Chill
Warning, dangerously cold wind chills expected. Wind chills
30 to 40 below zero. For the Wind Chill Advisory, very cold
wind chills expected. Wind chills 20 to 30 below zero.
* WHERE...Butte, Georgetown Lake, Highway 12 Garrison to
Elliston, Homestake Pass, and MacDonald Pass.
* WHEN...For the Winter Storm Warning, until 11 AM MST this
morning. For the Wind Chill Warning, from 11 PM this evening
to 11 AM MST Tuesday. For the Wind Chill Advisory, from 11 AM
this morning to 11 PM MST this evening.
* IMPACTS...Travel could be affected. Patchy blowing snow could
significantly reduce visibility. The dangerously cold wind
chills could cause frostbite on exposed skin in as little as
10 minutes.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency.
Avoid outside activities if possible. When outside, make sure you
wear appropriate clothing, a hat, and gloves.
Use caution while traveling outside. Wear appropriate clothing, a
hat, and gloves.
The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.
&&
$$
MTZ043-221215-
/O.NEW.KMSO.WC.W.0001.220222T0600Z-220222T1800Z/
/O.NEW.KMSO.WC.Y.0002.220221T1800Z-220222T0600Z/
/O.CON.KMSO.WS.W.0006.000000T0000Z-220221T1800Z/
Potomac/Seeley Lake Region-
511 AM MST Mon Feb 21 2022
...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST THIS
MORNING...
...WIND CHILL ADVISORY IN EFFECT FROM 11 AM THIS MORNING TO 11 PM
MST THIS EVENING...
...WIND CHILL WARNING IN EFFECT FROM 11 PM THIS EVENING TO 11 AM
MST TUESDAY...
* WHAT...For the Winter Storm Warning, heavy snow. Additional
snow accumulations of up to one inch. For the Wind Chill
Warning, dangerously cold wind chills expected. Wind chills 30
to 40 below zero. For the Wind Chill Advisory, very cold
wind chills expected. Wind chills 20 to 30 below zero.
* WHERE...Highway 200 Bonner to Greenough, Highway 83 Seeley
Lake to Condon, and I-90 East Missoula to Bearmouth.
* WHEN...For the Winter Storm Warning, until 11 AM MST this
morning. For the Wind Chill Warning, from 11 PM this evening
to 11 AM MST Tuesday. For the Wind Chill Advisory, from 11 AM
this morning to 11 PM MST this evening.
* IMPACTS...Travel could be affected. Patchy blowing snow could
significantly reduce visibility. The dangerously cold wind
chills could cause frostbite on exposed skin in as little as
10 minutes.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency.
Avoid outside activities if possible. When outside, make sure you
wear appropriate clothing, a hat, and gloves.
Use caution while traveling outside. Wear appropriate clothing, a
hat, and gloves.
The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.
&&
$$
MTZ003-221215-
/O.NEW.KMSO.WC.Y.0002.220222T0000Z-220222T1800Z/
/O.CON.KMSO.WS.W.0006.000000T0000Z-220221T1800Z/
Flathead/Mission Valleys-
511 AM MST Mon Feb 21 2022
...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST THIS
MORNING...
...WIND CHILL ADVISORY IN EFFECT FROM 5 PM THIS AFTERNOON TO
11 AM MST TUESDAY...
* WHAT...For the Winter Storm Warning, heavy snow. Additional
snow accumulations of up to one inch. Winds gusting as high as
40 mph. For the Wind Chill Advisory, very cold wind chills
expected. Wind chills 25 to 30 below zero.
* WHERE...Flathead Lake, Flathead Valley, Mission Valley, and
Polson.
* WHEN...For the Winter Storm Warning, until 11 AM MST this
morning. For the Wind Chill Advisory, from 5 PM this afternoon
to 11 AM MST Tuesday.
* IMPACTS...Travel could be affected. Patchy blowing snow could
significantly reduce visibility. The dangerously cold wind
chills could cause frostbite on exposed skin in as little as
10 minutes.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency.
Use caution while traveling outside. Wear appropriate clothing, a
hat, and gloves.
The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.
&&
$$
MTZ001-221215-
/O.NEW.KMSO.WC.Y.0002.220222T0000Z-220222T1800Z/
/O.CON.KMSO.WW.Y.0015.000000T0000Z-220221T1800Z/
Kootenai/Cabinet Region-
511 AM MST Mon Feb 21 2022
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST THIS
MORNING...
...WIND CHILL ADVISORY IN EFFECT FROM 5 PM THIS AFTERNOON TO
11 AM MST TUESDAY...
* WHAT...For the Winter Weather Advisory, snow. Additional snow
accumulations of up to one inch. For the Wind Chill Advisory,
very cold wind chills expected. Wind chills 15 to 25 below
zero.
* WHERE...Highway 2 Kalispell to Libby, Highway 37 Eureka to
Libby, Highway 56 Bull Lake Road, and Highway 93 Eureka to
Whitefish.
* WHEN...For the Winter Weather Advisory, until 11 AM MST this
morning. For the Wind Chill Advisory, from 5 PM this afternoon
to 11 AM MST Tuesday.
* IMPACTS...Travel could be affected. Patchy blowing snow could
significantly reduce visibility. The dangerously cold wind
chills could cause frostbite on exposed skin in as little as
10 minutes.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Slow down and use caution while traveling.
Use caution while traveling outside. Wear appropriate clothing, a
hat, and gloves.
The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.
&&
$$
MTZ004-221215-
/O.NEW.KMSO.WC.Y.0002.220222T0300Z-220222T1800Z/
/O.CON.KMSO.WW.Y.0015.000000T0000Z-220221T1800Z/
Lower Clark Fork Region-
511 AM MST Mon Feb 21 2022
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST THIS
MORNING...
...WIND CHILL ADVISORY IN EFFECT FROM 8 PM THIS EVENING TO 11 AM
MST TUESDAY...
* WHAT...For the Winter Weather Advisory, snow. Additional snow
accumulations of up to one inch. For the Wind Chill Advisory,
very cold wind chills expected. Wind chills 20 to 25 below
zero.
* WHERE...Evaro Hill, Highway 200 Thompson Falls to Plains,
Highway 200 Trout Creek to Heron, and I-90 Lookout Pass to
Haugan.
* WHEN...For the Winter Weather Advisory, until 11 AM MST this
morning. For the Wind Chill Advisory, from 8 PM this evening
to 11 AM MST Tuesday.
* IMPACTS...Travel could be affected. Patchy blowing snow could
significantly reduce visibility. The dangerously cold wind
chills could cause frostbite on exposed skin in as little as
10 minutes.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Slow down and use caution while traveling.
Use caution while traveling outside. Wear appropriate clothing, a
hat, and gloves.
The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.
&&
$$
MTZ005-221215-
/O.NEW.KMSO.WC.Y.0002.220222T0300Z-220222T1800Z/
/O.CON.KMSO.WW.Y.0015.000000T0000Z-220221T1800Z/
Missoula/Bitterroot Valleys-
511 AM MST Mon Feb 21 2022
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST THIS
MORNING...
...WIND CHILL ADVISORY IN EFFECT FROM 8 PM THIS EVENING TO 11 AM
MST TUESDAY...
* WHAT...For the Winter Weather Advisory, snow. Additional snow
accumulations of up to one inch. For the Wind Chill Advisory,
very cold wind chills expected. Wind chills 15 to 25 below
zero.
* WHERE...Missoula/Bitterroot Valleys.
* WHEN...For the Winter Weather Advisory, until 11 AM MST this
morning. For the Wind Chill Advisory, from 8 PM this evening
to 11 AM MST Tuesday.
* IMPACTS...Travel could be affected. Patchy blowing snow could
significantly reduce visibility. The cold wind chills could
cause frostbite on exposed skin in as little as 30 minutes.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Slow down and use caution while traveling.
Use caution while traveling outside. Wear appropriate clothing, a
hat, and gloves.
The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.
&&
$$
MTZ006-221215-
/O.NEW.KMSO.WC.Y.0002.220222T0300Z-220222T1800Z/
/O.CON.KMSO.WW.Y.0015.000000T0000Z-220221T1800Z/
Bitterroot/Sapphire Mountains-
511 AM MST Mon Feb 21 2022
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST THIS
MORNING...
...WIND CHILL ADVISORY IN EFFECT FROM 8 PM THIS EVENING TO 11 AM
MST TUESDAY...
* WHAT...For the Winter Weather Advisory, snow. Additional snow
accumulations of up to one inch. For the Wind Chill Advisory,
very cold wind chills expected. Wind chills 25 to 30 below
zero.
* WHERE...Bitterroot/Sapphire Mountains.
* WHEN...For the Winter Weather Advisory, until 11 AM MST this
morning. For the Wind Chill Advisory, from 8 PM this evening
to 11 AM MST Tuesday.
* IMPACTS...Travel could be affected. Patchy blowing snow could
significantly reduce visibility. The dangerously cold wind
chills could cause frostbite on exposed skin in as little as
10 minutes.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Slow down and use caution while traveling.
Use caution while traveling outside. Wear appropriate clothing, a
hat, and gloves.
The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.
&&
$$
IDZ005-221215-
/O.NEW.KMSO.WC.Y.0002.220222T0300Z-220222T1800Z/
/O.CON.KMSO.WW.Y.0015.000000T0000Z-220221T1800Z/
Northern Clearwater Mountains-
411 AM PST Mon Feb 21 2022
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST THIS
MORNING...
...WIND CHILL ADVISORY IN EFFECT FROM 7 PM THIS EVENING TO 10 AM
PST TUESDAY...
* WHAT...For the Winter Weather Advisory, snow. Additional snow
accumulations of up to two inches. For the Wind Chill
Advisory, very cold wind chills expected. Wind chills 15 to 25
below zero.
* WHERE...Elk River, Highway 11 Pierce to Headquarters, and
Pierce.
* WHEN...For the Winter Weather Advisory, until 10 AM PST this
morning. For the Wind Chill Advisory, from 7 PM this evening
to 10 AM PST Tuesday.
* IMPACTS...Travel could be affected. Patchy blowing snow could
significantly reduce visibility. The dangerously cold wind
chills could cause frostbite on exposed skin in as little as
10 minutes.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Slow down and use caution while traveling.
Use caution while traveling outside. Wear appropriate clothing, a
hat, and gloves.
The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.
&&
$$
IDZ006-221215-
/O.NEW.KMSO.WC.Y.0002.220222T0300Z-220222T1800Z/
/O.CON.KMSO.WW.Y.0015.000000T0000Z-220221T1800Z/
Southern Clearwater Mountains-
411 AM PST Mon Feb 21 2022
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST THIS
MORNING...
...WIND CHILL ADVISORY IN EFFECT FROM 7 PM THIS EVENING TO 10 AM
PST TUESDAY...
* WHAT...For the Winter Weather Advisory, snow. Additional snow
accumulations of up to two inches. For the Wind Chill
Advisory, very cold wind chills expected. Wind chills 15 to 25
below zero.
* WHERE...Dixie, Elk City, and Highway 12 Lowell to Lolo Pass.
* WHEN...For the Winter Weather Advisory, until 10 AM PST this
morning. For the Wind Chill Advisory, from 7 PM this evening
to 10 AM PST Tuesday.
* IMPACTS...Travel could be affected. The dangerously cold wind
chills could cause frostbite on exposed skin in as little as
10 minutes.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Slow down and use caution while traveling.
Use caution while traveling outside. Wear appropriate clothing, a
hat, and gloves.
The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.
&&
$$
IDZ009-010-221215-
/O.NEW.KMSO.WC.Y.0002.220222T0300Z-220222T1800Z/
Western Lemhi County-Eastern Lemhi County-
511 AM MST Mon Feb 21 2022
...WIND CHILL ADVISORY IN EFFECT FROM 8 PM THIS EVENING TO 11 AM
MST TUESDAY...
* WHAT...Very cold wind chills expected. Wind chills 20 to 30
below zero.
* WHERE...Shoup, Bannock Pass, Highway 28 Tendoy to Lone Pine,
Highway 93 Lost Trail Pass to Gibbonsville, Lemhi Pass, and
Salmon.
* WHEN...From 8 PM this evening to 11 AM MST Tuesday.
* IMPACTS...The dangerously cold wind chills could cause
frostbite on exposed skin in as little as 10 minutes.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Use caution while traveling outside. Wear appropriate clothing, a
hat, and gloves.
&&
$$
IDZ007-008-211800-
/O.CON.KMSO.WW.Y.0015.000000T0000Z-220221T1800Z/
Orofino/Grangeville Region-Lower Hells Canyon/Salmon River Region-
411 AM PST Mon Feb 21 2022
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST THIS
MORNING...
* WHAT...Snow. Additional snow accumulations of up to one inch.
* WHERE...Camas Prairie, Grangeville and vicinity, Greer Grade,
Highway 95 Slate Creek to Riggins, and White Bird Grade.
* WHEN...Until 10 AM PST this morning.
* IMPACTS...Travel could be affected.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Slow down and use caution while traveling.
The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.
&&
$$3 follow-up statements
916 WWUS45 KMSO 211659 WSWMSO URGENT - WINTER WEATHER MESSAGE National Weather Service Missoula MT 959 AM MST Mon Feb 21 2022 MTZ002-007-043-221700- /O.CAN.KMSO.WS.W.0006.000000T0000Z-220221T1800Z/ /O.CAN.KMSO.WC.Y.0002.220221T1800Z-220222T0600Z/ /O.EXT.KMSO.WC.W.0001.220221T1659Z-220222T1800Z/ West Glacier Region-Butte/Blackfoot Region- Potomac/Seeley Lake Region- 959 AM MST Mon Feb 21 2022 ...WIND CHILL WARNING NOW IN EFFECT UNTIL 11 AM MST TUESDAY... * WHAT...Dangerously cold wind chills expected. Wind chills 30 to 40 below zero. Also, watch for blowing and drifting snow. * WHERE...Butte/Blackfoot Region, West Glacier Region and Potomac/Seeley Lake Region. * WHEN...Until 11 AM MST Tuesday. * IMPACTS...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. && $$ MTZ003-221700- /O.CAN.KMSO.WS.W.0006.000000T0000Z-220221T1800Z/ /O.EXT.KMSO.WC.Y.0002.220221T1659Z-220222T1800Z/ Flathead/Mission Valleys- 959 AM MST Mon Feb 21 2022 ...WIND CHILL ADVISORY NOW IN EFFECT UNTIL 11 AM MST TUESDAY... * WHAT...Very cold wind chills 25 to 30 below zero expected. Also watch for blowing and drifting snow. * WHERE...Flathead Lake, Flathead Valley, Mission Valley, and Polson. * WHEN...Until 11 AM MST Tuesday. * IMPACTS...Patchy blowing snow could significantly reduce visibility. The dangerously cold wind chills could cause frostbite on exposed skin in as little as 10 minutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. && $$ MTZ001-221700- /O.CAN.KMSO.WW.Y.0015.000000T0000Z-220221T1800Z/ /O.EXT.KMSO.WC.Y.0002.220221T1659Z-220222T1800Z/ Kootenai/Cabinet Region- 959 AM MST Mon Feb 21 2022 ...WIND CHILL ADVISORY NOW IN EFFECT UNTIL 11 AM MST TUESDAY... * WHAT...Very cold wind chills 15 to 25 below zero expected. Also, watch for blowing and drifting snow. * WHERE...Highway 2 Kalispell to Libby, Highway 37 Eureka to Libby, Highway 56 Bull Lake Road, and Highway 93 Eureka to Whitefish. * WHEN...Until 11 AM MST Tuesday. * IMPACTS...Patchy blowing snow could significantly reduce visibility. The dangerously cold wind chills could cause frostbite on exposed skin in as little as 10 minutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. && $$ MTZ004-221700- /O.EXT.KMSO.WC.Y.0002.220221T1800Z-220222T1800Z/ /O.CON.KMSO.WW.Y.0015.000000T0000Z-220221T1800Z/ Lower Clark Fork Region- 959 AM MST Mon Feb 21 2022 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING... ...WIND CHILL ADVISORY NOW IN EFFECT UNTIL 11 AM MST TUESDAY... * WHAT...Very cold wind chills 20 to 25 below zero expected. Watch for blowing and drifting snow as some light snow continues. * WHERE...Evaro Hill, Highway 200 Thompson Falls to Plains, Highway 200 Trout Creek to Heron, and I-90 Lookout Pass to Haugan. Mountain passes and the back country will see the coldest wind chills. * WHEN...For the Winter Weather Advisory, until 11 AM MST this morning. For the Wind Chill Advisory, until 11 AM MST Tuesday. * IMPACTS...Travel could be affected. Patchy blowing snow could significantly reduce visibility. The dangerously cold wind chills could cause frostbite on exposed skin in as little as 10 minutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. && $$ MTZ005-221700- /O.EXT.KMSO.WC.Y.0002.220221T1800Z-220222T1800Z/ /O.CON.KMSO.WW.Y.0015.000000T0000Z-220221T1800Z/ Missoula/Bitterroot Valleys- 959 AM MST Mon Feb 21 2022 ...WIND CHILL ADVISORY NOW IN EFFECT UNTIL 11 AM MST TUESDAY... * WHAT...Very cold wind chills 15 to 25 below zero expected. Also, watch for blowing and drifting snow. * WHERE...Missoula/Bitterroot Valleys. * WHEN...For the Winter Weather Advisory, until 11 AM MST this morning. For the Wind Chill Advisory, until 11 AM MST Tuesday. * IMPACTS...Travel could be affected. Patchy blowing snow could significantly reduce visibility. The cold wind chills could cause frostbite on exposed skin in as little as 30 minutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. && $$ MTZ006-221700- /O.EXT.KMSO.WC.Y.0002.220221T1800Z-220222T1800Z/ /O.CON.KMSO.WW.Y.0015.000000T0000Z-220221T1800Z/ Bitterroot/Sapphire Mountains- 959 AM MST Mon Feb 21 2022 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING... ...WIND CHILL ADVISORY NOW IN EFFECT UNTIL 11 AM MST TUESDAY... * WHAT...Very cold wind chills 25 to 30 below zero expected. Also, watch for blowing and drifting snow. Light snow will continue in the mountains. * WHERE...Bitterroot/Sapphire Mountains. * WHEN...For the Winter Weather Advisory, until 11 AM MST this morning. For the Wind Chill Advisory, until 11 AM MST Tuesday. * IMPACTS...Travel could be affected. Patchy blowing snow could significantly reduce visibility. The dangerously cold wind chills could cause frostbite on exposed skin in as little as 10 minutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. && $$ IDZ005-221700- /O.EXT.KMSO.WW.Y.0015.000000T0000Z-220222T0000Z/ /O.EXT.KMSO.WC.Y.0002.220222T0000Z-220222T1800Z/ Northern Clearwater Mountains- 859 AM PST Mon Feb 21 2022 ...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 4 PM PST THIS AFTERNOON... ...WIND CHILL ADVISORY NOW IN EFFECT FROM 4 PM THIS AFTERNOON TO 10 AM PST TUESDAY... * WHAT...For the Winter Weather Advisory, snow. Additional snow accumulations of up to four inches with blowing and drifting snow. For the Wind Chill Advisory, very cold wind chills expected. Wind chills 15 to 25 below zero. * WHERE...Elk River, Highway 11 Pierce to Headquarters, and Pierce. * WHEN...For the Winter Weather Advisory, until 4 PM PST this afternoon. For the Wind Chill Advisory, from 4 PM this afternoon to 10 AM PST Tuesday. * IMPACTS...Travel could be affected. Patchy blowing snow could significantly reduce visibility. The dangerously cold wind chills could cause frostbite on exposed skin in as little as 10 minutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ IDZ006-221700- /O.EXT.KMSO.WW.Y.0015.000000T0000Z-220222T0000Z/ /O.EXT.KMSO.WC.Y.0002.220222T0000Z-220222T1800Z/ Southern Clearwater Mountains- 859 AM PST Mon Feb 21 2022 ...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 4 PM PST THIS AFTERNOON... ...WIND CHILL ADVISORY NOW IN EFFECT FROM 4 PM THIS AFTERNOON TO 10 AM PST TUESDAY... * WHAT...For the Winter Weather Advisory, snow. Additional snow accumulations of up to four inches with blowing and drifting snow. For the Wind Chill Advisory, very cold wind chills expected. Wind chills 15 to 25 below zero. * WHERE...Dixie, Elk City, and Highway 12 Lowell to Lolo Pass. * WHEN...For the Winter Weather Advisory, until 4 PM PST this afternoon. For the Wind Chill Advisory, from 4 PM this afternoon to 10 AM PST Tuesday. * IMPACTS...Travel could be affected. The dangerously cold wind chills could cause frostbite on exposed skin in as little as 10 minutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ IDZ007-008-220000- /O.EXT.KMSO.WW.Y.0015.000000T0000Z-220222T0000Z/ Orofino/Grangeville Region-Lower Hells Canyon/Salmon River Region- 859 AM PST Mon Feb 21 2022 ...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 4 PM PST THIS AFTERNOON... * WHAT...Snow. Additional snow accumulations of up to four inches. * WHERE...Camas Prairie, Grangeville and vicinity, Greer Grade, Highway 95 Slate Creek to Riggins, and White Bird Grade. * WHEN...Until 4 PM PST this afternoon. * IMPACTS...Travel could be affected. 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. && $$ IDZ009-010-221700- /O.EXT.KMSO.WC.Y.0002.220222T0000Z-220222T1800Z/ Western Lemhi County-Eastern Lemhi County- 959 AM MST Mon Feb 21 2022 ...WIND CHILL ADVISORY NOW IN EFFECT FROM 5 PM THIS AFTERNOON TO 11 AM MST TUESDAY... * WHAT...Very cold wind chills expected. Wind chills 20 to 30 below zero. * WHERE...Shoup, Bannock Pass, Highway 28 Tendoy to Lone Pine, Highway 93 Lost Trail Pass to Gibbonsville, Lemhi Pass, and Salmon. * WHEN...From 5 PM this afternoon to 11 AM MST Tuesday. * IMPACTS...The dangerously cold wind chills could cause frostbite on exposed skin in as little as 10 minutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. && $$
140 WWUS45 KMSO 221325 WSWMSO URGENT - WINTER WEATHER MESSAGE National Weather Service Missoula MT 625 AM MST Tue Feb 22 2022 MTZ002-007-043-221800- /O.CON.KMSO.WC.W.0001.000000T0000Z-220222T1800Z/ West Glacier Region-Butte/Blackfoot Region- Potomac/Seeley Lake Region- 625 AM MST Tue Feb 22 2022 ...WIND CHILL WARNING REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING... * WHAT...Dangerously cold wind chills. Wind chills as low as 45 below zero. * WHERE...Butte/Blackfoot Region, West Glacier Region and Potomac/Seeley Lake Region. * WHEN...Until 11 AM MST this morning. * IMPACTS...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. && $$ MTZ001-003-231200- /O.EXT.KMSO.WC.Y.0002.000000T0000Z-220223T1200Z/ Kootenai/Cabinet Region-Flathead/Mission Valleys- 625 AM MST Tue Feb 22 2022 ...WIND CHILL ADVISORY NOW IN EFFECT UNTIL 5 AM MST WEDNESDAY... * WHAT...Very cold wind chills. Wind chills as low as 40 below zero. * WHERE...Highway 2 Kalispell to Libby, Highway 37 Eureka to Libby, Highway 56 Bull Lake Road, Highway 93 Eureka to Whitefish, Flathead Lake, Flathead Valley, Mission Valley, and Polson. * WHEN...Until 5 AM MST Wednesday. * IMPACTS...The dangerously cold wind chills could cause frostbite on exposed skin in as little as 10 minutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. && $$ MTZ004>006-231200- /O.EXT.KMSO.WC.Y.0002.000000T0000Z-220223T1200Z/ Lower Clark Fork Region-Missoula/Bitterroot Valleys- Bitterroot/Sapphire Mountains- 625 AM MST Tue Feb 22 2022 ...WIND CHILL ADVISORY NOW IN EFFECT UNTIL 5 AM MST WEDNESDAY... * WHAT...Very cold wind chills. Wind chills as low as 40 below zero. * WHERE...Evaro Hill, Highway 200 Thompson Falls to Plains, Highway 200 Trout Creek to Heron, I-90 Lookout Pass to Haugan, Bitterroot Valley, Missoula, Highway 93 Sula to Lost Trail Pass, and Lolo Pass. * WHEN...Until 5 AM MST Wednesday. * IMPACTS...The dangerously cold wind chills could cause frostbite on exposed skin in as little as 10 minutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. && $$ IDZ005-006-009-010-231200- /O.EXT.KMSO.WC.Y.0002.000000T0000Z-220223T1200Z/ Northern Clearwater Mountains-Southern Clearwater Mountains- Western Lemhi County-Eastern Lemhi County- 625 AM MST Tue Feb 22 2022 /525 AM PST Tue Feb 22 2022/ ...WIND CHILL ADVISORY NOW IN EFFECT UNTIL 5 AM MST /4 AM PST/ WEDNESDAY... * WHAT...Very cold wind chills. Wind chills as low as 35 below zero. * WHERE...Western Lemhi County, Eastern Lemhi County, Southern Clearwater Mountains and Northern Clearwater Mountains. * WHEN...Until 5 AM MST /4 AM PST/ Wednesday. * IMPACTS...The dangerously cold wind chills could cause frostbite on exposed skin in as little as 10 minutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. && $$
977 WWUS45 KMSO 221327 WSWMSO URGENT - WINTER WEATHER MESSAGE National Weather Service Missoula MT 627 AM MST Tue Feb 22 2022 MTZ002-007-043-231200- /O.EXB.KMSO.WC.Y.0002.220222T1800Z-220223T1200Z/ /O.CON.KMSO.WC.W.0001.000000T0000Z-220222T1800Z/ West Glacier Region-Butte/Blackfoot Region- Potomac/Seeley Lake Region- 627 AM MST Tue Feb 22 2022 ...WIND CHILL WARNING REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING... ...WIND CHILL ADVISORY IN EFFECT FROM 11 AM THIS MORNING TO 5 AM MST WEDNESDAY... * WHAT...For the Wind Chill Warning, dangerously cold wind chills. Wind chills as low as 45 below zero. For the Wind Chill Advisory, very cold wind chills expected. Wind chills as low as 45 below zero. * WHERE...West Glacier Region, Butte/Blackfoot Region and Potomac/Seeley Lake Region. * WHEN...For the Wind Chill Warning, until 11 AM MST this morning. For the Wind Chill Advisory, from 11 AM this morning to 5 AM MST Wednesday. * IMPACTS...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. Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. && $$ MTZ001-003-231200- /O.CON.KMSO.WC.Y.0002.000000T0000Z-220223T1200Z/ Kootenai/Cabinet Region-Flathead/Mission Valleys- 627 AM MST Tue Feb 22 2022 ...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST WEDNESDAY... * WHAT...Very cold wind chills. Wind chills as low as 40 below zero. * WHERE...Highway 2 Kalispell to Libby, Highway 37 Eureka to Libby, Highway 56 Bull Lake Road, Highway 93 Eureka to Whitefish, Flathead Lake, Flathead Valley, Mission Valley, and Polson. * WHEN...Until 5 AM MST Wednesday. * IMPACTS...The dangerously cold wind chills could cause frostbite on exposed skin in as little as 10 minutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. && $$ MTZ004>006-231200- /O.CON.KMSO.WC.Y.0002.000000T0000Z-220223T1200Z/ Lower Clark Fork Region-Missoula/Bitterroot Valleys- Bitterroot/Sapphire Mountains- 627 AM MST Tue Feb 22 2022 ...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST WEDNESDAY... * WHAT...Very cold wind chills. Wind chills as low as 40 below zero. * WHERE...Evaro Hill, Highway 200 Thompson Falls to Plains, Highway 200 Trout Creek to Heron, I-90 Lookout Pass to Haugan, Bitterroot Valley, Missoula, Highway 93 Sula to Lost Trail Pass, and Lolo Pass. * WHEN...Until 5 AM MST Wednesday. * IMPACTS...The dangerously cold wind chills could cause frostbite on exposed skin in as little as 10 minutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. && $$ IDZ005-006-009-010-231200- /O.CON.KMSO.WC.Y.0002.000000T0000Z-220223T1200Z/ Northern Clearwater Mountains-Southern Clearwater Mountains- Western Lemhi County-Eastern Lemhi County- 627 AM MST Tue Feb 22 2022 /527 AM PST Tue Feb 22 2022/ ...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST /4 AM PST/ WEDNESDAY... * WHAT...Very cold wind chills. Wind chills as low as 35 below zero. * WHERE...Western Lemhi County, Eastern Lemhi County, Southern Clearwater Mountains and Northern Clearwater Mountains. * WHEN...Until 5 AM MST /4 AM PST/ Wednesday. * IMPACTS...The dangerously cold wind chills could cause frostbite on exposed skin in as little as 10 minutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. && $$
What forecasters said that day
The local office's own words before this wind chill warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Missoula, MT wrote its last area forecast discussion before this wind chill warning went out at Feb 21, 3:33 AM MST, 1 hour 38 minutes earlier.
Area forecast discussion, Feb 21, 3:33 AM MST, 1 hour 38 minutes before
Area Forecast Discussion
National Weather Service Missoula MT
333 AM MST Mon Feb 21 2022
.DISCUSSION...The arctic front has made its way across all of
western Montana and will move across central Idaho the rest of the
morning. A well organized short wave across Northwest Montana will
gradually move southward through the morning hours. The associated
moist air with this system interacting with the arctic front is
producing widespread snows across Central Idaho, West central and
and Southwest Montana. Strong gusty northeasterly wind combined
with several inches of snow will result in considerable blowing
snow and low visibilities. This will all make for a difficult
morning commute.
While snow has tapered off in the Flathead Valley and along the
continental divide in the Glacier NP region, strong gusty
northeast winds will continue bring blowing snow and low
visibilities through the morning hours.
Persistent snow will diminish around noon across western Montana
leaving behind snow showers for the remainder of the day.
Accumulating snows will continue through the entire afternoon
across central, then weather disturbance will finally move south
of the Northern Rockies.
Right on its heels a secondary push of very cold arctic air from
Alberta Canada will move across the continental divide into
western Montana and central Idaho. This deep arctic air will
significantly tighten temperature/pressure gradients resulting in
continued strong gusty northeast winds across the entire Northern
Rockies, especially the Flathead Valley. Areas along the divide
into Bad Rock Canyon and Kalispell can expect wind gusts over
40 mph late this afternoon and evening.
Gusty northeast winds will persist through Wednesday morning.
Extremely cold air with these winds will result in a lengthy
period of very low wind chills of 15 to 30 degrees below zero.
Even more dangerous wind chill readings of 30 to 40 degrees below
zero are likely along the continental divide which includes the
Glacier NP region, the Seeley/Swan valley, and southwest Montana
this evening through Wednesday morning.
This is the coldest polar dip of the year with Wednesday morning
being the coldest. Temperatures will be around 10 to 15 below
zero in western Montana. Even colder low temps of 15 to 25 degrees
below zero will occur along the divide into the Seeley/Swan valley
and southwest Montana.
Single digit to below zero low temperatures will occur through
Saturday morning. Temperatures won't return back to near normal
until next week.
Wind Chill readings Tonight into Tuesday morning
Missoula -22 to -28
Kalispell -25 to -30
Butte -30 to -35
West -34 to -39
Seeley Lake -35 to -40
Another weather disturbance will move through the region from
Canada Thursday and Friday bringing another round of
accumulating snows.
&&
.AVIATION...A low pressure system is making its way across
western Montana this morning. The warm moist air overrunning cold
arctic air that has established itself will continue to produce
snow impacting KMSO, KBTM through 21/1800z. Gusty northeasterly
winds will result in blowing snow. Expect low ceilings,
visibilites and mountain obscurations.
While snow has diminished at KGPI, strong northeast winds gusting
to 40 mph will continue the next 24 hours. Blowing snow from these
winds will reduce visibilites.
KSMN can expect snow through 21/2300z resulting in low ceilings,
visibilities and mountain obscurations.
&&
.MSO WATCHES/WARNINGS/ADVISORIES...
MT... Winter Storm Warning until 11 AM MST this morning
Butte/Blackfoot Region.
Wind Chill Warning from 11 PM this evening to 11 AM MST Tuesday
Butte/Blackfoot Region...Potomac/Seeley Lake Region...West
Glacier Region.
Wind Chill Advisory from 11 AM this morning to 11 PM MST this
evening Butte/Blackfoot Region...Potomac/Seeley Lake
Region...West Glacier Region.
Winter Weather Advisory until 11 AM MST this morning
Bitterroot/Sapphire Mountains.
Wind Chill Advisory from 8 PM this evening to 11 AM MST Tuesday
Bitterroot/Sapphire Mountains...Lower Clark Fork Region...
Missoula/Bitterroot Valleys.
Winter Weather Advisory until 11 AM MST this morning
Missoula/Bitterroot Valleys.
Winter Weather Advisory until 11 AM MST this morning Lower Clark
Fork Region.
Winter Storm Warning until 11 AM MST this morning
Flathead/Mission Valleys.
Wind Chill Advisory from 5 PM this afternoon to 11 AM MST
Tuesday Flathead/Mission Valleys...Kootenai/Cabinet Region.
Winter Storm Warning until 11 AM MST this morning West Glacier
Region.
Winter Weather Advisory until 11 AM MST this morning
Kootenai/Cabinet Region.
Winter Storm Warning until 11 AM MST this morning Potomac/Seeley
Lake Region.
ID...Wind Chill Advisory from 8 PM MST /7 PM PST/ this evening to 11
AM MST /10 AM PST/ Tuesday Eastern Lemhi County...Northern
Clearwater Mountains...Southern Clearwater Mountains...
Western Lemhi County.
Winter Weather Advisory until 10 AM PST this morning Lower Hells
Canyon/Salmon River Region...Orofino/Grangeville Region.
Winter Weather Advisory until 10 AM PST this morning Southern
Clearwater Mountains.
Winter Weather Advisory until 10 AM PST this morning Northern
Clearwater Mountains.
&&The office that day
Everything else NWS Missoula, MT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 20, 5:46 PM MST | Special Weather Statement | MSO | Sanders | 44 min |
| Feb 21, 5:11 AM MST | Wind Chill Advisory | MSO | Deer Lodge, Flathead, Granite, Lake, Lincoln, Mineral and 5 more | 51 hr |
Nearby
Wind Chill Warnings in Montana, 2022Every wind chill warning in 2022
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.