Alert archive / Montana / Wind Chill Advisories in 2024

Wind Chill Advisory 2, NWS Missoula, MT

February 13, 2024Flathead County, Lake County, Montana

NWS Missoula, MT issued this wind chill advisory at Feb 13, 2024, 1:52 PM MST for Flathead County, Lake County, Montana. It took effect at Feb 14, 2024, 11:00 PM MST. It was in force for 21 hr.

The area

The counties it named.

The facts

Issued
Feb 13, 2024, 1:52 PM MST (20:52 UTC)
In effect from
Feb 14, 2024, 11:00 PM MST
Expired
Feb 15, 2024, 7:39 PM MST
In force
21 hr
Issued by
NWS Missoula, MT

Counties Flathead County, MT, Lake County, MT

The radar

The Missoula radar (KMSX), 104 km from the middle of the area, began a volume at 20:52 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.

The nearest sounding before it

Spokane, WA (KOTX), launched 12:00Z, 8.9 hours before the alert went out and 177 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, Spokane, WA at 12:00Z on 2024-02-13Temperature 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 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Spokane, WA at 12:00Z on 2024-02-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -8 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
1207 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
-8 m²/s²
0-3 km storm-relative helicity
40 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

611 
WWUS45 KMSO 132052
WSWMSO

URGENT - WINTER WEATHER MESSAGE
National Weather Service Missoula MT
152 PM MST Tue Feb 13 2024

MTZ002-142230-
/O.NEW.KMSO.WC.Y.0002.240215T0600Z-240216T1200Z/
/O.CON.KMSO.WW.Y.0017.000000T0000Z-240214T1200Z/
West Glacier Region-
152 PM MST Tue Feb 13 2024

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST 
WEDNESDAY...
...WIND CHILL ADVISORY IN EFFECT FROM 11 PM WEDNESDAY TO 5 AM MST 
FRIDAY...

* WHAT...For the Winter Weather Advisory, snow. Additional snow 
  accumulations between 1 and 2 inches. For the Wind Chill Advisory, 
  very cold wind chills expected. Wind chills as low as 25 below 
  zero, except up to 30 below zero in the mountains. North to east 
  winds will ramp up Wednesday night into Thursday, gusting up to 40 
  mph in the channeled terrain.

* WHERE...Marias Pass, Polebridge, Highway 83 Bigfork to Swan Lake, 
  Bad Rock Canyon, and Essex.

* WHEN...For the Winter Weather Advisory, until 5 AM MST Wednesday. 
  For the Wind Chill Advisory, from 11 PM Wednesday to 5 AM MST 
  Friday.

* IMPACTS...Plan on slippery road conditions. The cold wind chills 
  could result in hypothermia and frostbite if precautions are not 
  taken for people...young animals will be affected. Patchy blowing 
  and drifting snow. An additional 1 to 2 inches of snow is expected 
  Thursday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use caution while traveling outside. 

Keep pets indoors as much as possible.

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.

&&

$$

MTZ003-142230-
/O.NEW.KMSO.WW.Y.0019.240215T0300Z-240216T1200Z/
/O.CON.KMSO.WW.Y.0018.000000T0000Z-240214T1800Z/
Flathead/Mission Valleys-
152 PM MST Tue Feb 13 2024

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST 
WEDNESDAY...
...WINTER WEATHER ADVISORY IN EFFECT FROM 8 PM WEDNESDAY TO 5 AM MST 
FRIDAY...

* WHAT...For the first Winter Weather Advisory, snow. Additional 
  snow accumulations up to 2 inches. Snow shuts off in the Flathead 
  Valley this evening, but persists in the Mission Valley tonight. 
  Winds gusting as high as 30 mph. For the second Winter Weather 
  Advisory, snow expected. Total snow accumulations up to 3 inches...
  highest amounts south of Polson. North to east winds 10 to 25 mph 
  except gusts to 40 mph at Badrock Canyon.

* WHERE...Mission Valley, Flathead Valley, Flathead Lake, and Polson.

* WHEN...For the first Winter Weather Advisory, until 11 AM MST 
  Wednesday. For the second Winter Weather Advisory, from 8 PM 
  Wednesday to 5 AM MST Friday.

* IMPACTS...Plan on slippery road conditions. Wind chill 
  temperatures in the single digits in the Flathead could cause 
  hypothermia. The raw conditions could also affect young animals. 
  Patchy blowing and drifting snow.

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.

&&

$$

MTZ001-142230-
/O.NEW.KMSO.WW.Y.0019.240215T0600Z-240216T0600Z/
/O.CON.KMSO.WW.Y.0018.240213T2100Z-240214T1200Z/
Kootenai/Cabinet Region-
152 PM MST Tue Feb 13 2024

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST 
WEDNESDAY...
...WINTER WEATHER ADVISORY IN EFFECT FROM 11 PM WEDNESDAY TO 11 PM 
MST THURSDAY...

* WHAT...For the first Winter Weather Advisory, snow expected. Total 
  snow accumulations up to 3 inches. For the second Winter Weather 
  Advisory, snow expected. Total snow accumulations up to 2 inches. 
  Breezy north to east winds 10 to 25 mph Thursday morning Highway 2.

* WHERE...Highway 56 Bull Lake Road, Highway 2 Kalispell to Libby, 
  Highway 37 Eureka to Libby, and Highway 93 Eureka to Whitefish.

* WHEN...For the first Winter Weather Advisory, until 5 AM MST 
  Wednesday. For the second Winter Weather Advisory, from 11 PM 
  Wednesday to 11 PM MST Thursday.

* IMPACTS...Plan on slippery road conditions. Patchy blowing and 
  drifting snow. Wind chills in the single digits could cause 
  hypothermia. The raw conditions will affect young animals.

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.

&&

$$

IDZ007-142230-
/O.NEW.KMSO.WW.Y.0019.240215T0200Z-240216T1200Z/
Orofino/Grangeville Region-
1252 PM PST Tue Feb 13 2024

...WINTER WEATHER ADVISORY IN EFFECT FROM 6 PM WEDNESDAY TO 4 AM PST 
FRIDAY...

* WHAT...Snow expected. Total snow accumulations of 1 to 4 inches. 
  May mix with rain in the lower elevations on Thursday. Black ice 
  will be a concern at night.

* WHERE...Camas Prairie, Greer Grade, and Grangeville and vicinity.

* WHEN...From 6 PM Wednesday to 4 AM PST Friday.

* IMPACTS...Slick conditions could impact the Thursday morning and 
  evening commutes.

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.

&&

$$

IDZ008-142230-
/O.NEW.KMSO.WW.Y.0019.240215T0200Z-240216T1200Z/
Lower Hells Canyon/Salmon River Region-
1252 PM PST Tue Feb 13 2024

...WINTER WEATHER ADVISORY IN EFFECT FROM 6 PM WEDNESDAY TO 4 AM PST 
FRIDAY ABOVE 3000 FEET...

* WHAT...Snow expected above 3000 feet. Total snow accumulations of 
  2 to 4 inches. Black ice will be a concern at night.

* WHERE...White Bird Grade.

* WHEN...From 6 PM Wednesday to 4 AM PST Friday.

* IMPACTS...Slick conditions could impact the Thursday morning and 
  evening commutes.

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.

&&

$$

IDZ005-142230-
/O.NEW.KMSO.WW.Y.0019.240215T0300Z-240216T1200Z/
Northern Clearwater Mountains-
1252 PM PST Tue Feb 13 2024

...WINTER WEATHER ADVISORY IN EFFECT FROM 7 PM WEDNESDAY TO 4 AM PST 
FRIDAY...

* WHAT...Snow expected. Total snow accumulations between 2 and 6 
  inches...except up to 10 inches in the Northern Clearwater 
  Mountains east and south of Pierce. Northeast winds 10 to 20 mph 
  develop Thursday night.

* WHERE...Highway 11 Pierce to Headquarters, Pierce, and Elk River.

* WHEN...From 7 PM Wednesday to 4 AM PST Friday.

* IMPACTS...Travel could be affected. Raw conditions may affect 
  young animals.

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.

&&

$$

IDZ006-142230-
/O.NEW.KMSO.WW.Y.0019.240215T0300Z-240216T1500Z/
Southern Clearwater Mountains-
1252 PM PST Tue Feb 13 2024

...WINTER WEATHER ADVISORY IN EFFECT FROM 7 PM WEDNESDAY TO 7 AM PST 
FRIDAY...

* WHAT...Snow expected. Total snow accumulations between 5 and 12 
  inches. North to east winds 10 to 20 mph develop Thursday night.

* WHERE...Highway 12 Lowell to Lolo Pass, Dixie, and Elk City.

* WHEN...From 7 PM Wednesday to 7 AM PST Friday.

* IMPACTS...Travel could be affected. The slick conditions could 
  impact the Thursday morning and evening commutes. The raw 
  conditions may affect young animals.

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.

&&

$$

IDZ009-142230-
/O.NEW.KMSO.WW.Y.0019.240215T0300Z-240215T1800Z/
Western Lemhi County-
152 PM MST Tue Feb 13 2024

...WINTER WEATHER ADVISORY IN EFFECT FROM 8 PM WEDNESDAY TO 11 AM 
MST THURSDAY...

* WHAT...Snow expected. Total snow accumulations between 1 and 3 
  inches.

* WHERE...Shoup and Williams Creek Summit.

* WHEN...From 8 PM Wednesday to 11 AM MST Thursday.

* IMPACTS...Travel during the Thursday morning commute 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.

&&

$$

MTZ004-142230-
/O.NEW.KMSO.WW.Y.0019.240215T0300Z-240216T1500Z/
Lower Clark Fork Region-
152 PM MST Tue Feb 13 2024

...WINTER WEATHER ADVISORY IN EFFECT FROM 8 PM WEDNESDAY TO 8 AM MST 
FRIDAY...

* WHAT...Snow expected. Total snow accumulations between 2 and 7 
  inches. Gusty north to east winds 10 to 25 mph are expected 
  Thursday morning.

* WHERE...Evaro Hill, I-90 Lookout Pass to Haugan, Highway 200 
  Thompson Falls to Plains, and Highway 200 Trout Creek to Heron.

* WHEN...From 8 PM Wednesday to 8 AM MST Friday.

* IMPACTS...The slick conditions could impact the Thursday morning 
  and evening commutes. The raw conditions may affect young animals.

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.

&&

$$

MTZ005-142230-
/O.NEW.KMSO.WW.Y.0019.240215T0300Z-240216T1500Z/
Missoula/Bitterroot Valleys-
152 PM MST Tue Feb 13 2024

...WINTER WEATHER ADVISORY IN EFFECT FROM 8 PM WEDNESDAY TO 8 AM MST 
FRIDAY...

* WHAT...Snow expected. Mixed precipitation possible south of 
  Hamilton. Total snow accumulations between 1 and 7 inches...with 
  the highest in the Bitterroot. Strong north to east winds 15 to 25 
  mph with gusts to 35 mph in Missoula Wednesday night through 
  Thursday morning. North to east winds 10 to 20 mph in the 
  Bitterroot.

* WHERE...Bitterroot Valley and Missoula.

* WHEN...From 8 PM Wednesday to 8 AM MST Friday.

* IMPACTS...Plan on slippery road conditions, especially during the 
  Thursday morning and evening commutes. The raw conditions may 
  affect young animals.

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.

&&

$$

MTZ006-142230-
/O.NEW.KMSO.WW.Y.0019.240215T0300Z-240216T1500Z/
Bitterroot/Sapphire Mountains-
152 PM MST Tue Feb 13 2024

...WINTER WEATHER ADVISORY IN EFFECT FROM 8 PM WEDNESDAY TO 8 AM MST 
FRIDAY...

* WHAT...Snow expected. Mixed precipitation possible from Painted 
  Rocks to Sula on Thursday. Total snow accumulations between 5 and 
  12 inches.

* WHERE...Lolo Pass and Highway 93 Sula to Lost Trail Pass.

* WHEN...From 8 PM Wednesday to 8 AM MST Friday.

* IMPACTS...The slick conditions could impact the Thursday morning 
  and evening commutes. The raw conditions may affect young animals.

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.

&&

$$

MTZ007-142230-
/O.NEW.KMSO.WW.Y.0019.240215T0300Z-240216T1500Z/
Butte/Blackfoot Region-
152 PM MST Tue Feb 13 2024

...WINTER WEATHER ADVISORY IN EFFECT FROM 8 PM WEDNESDAY TO 8 AM MST 
FRIDAY...

* WHAT...Snow expected. Total snow accumulations between 2 and 5 
  inches. Gusty north to east winds 10 to 25 mph...with gusts to 40 
  mph in channeled terrain. Wind chills to 15 below zero on 
  Thursday. Patchy blowing and drifting snow.

* WHERE...Homestake Pass, Georgetown Lake, MacDonald Pass, Butte, 
  and Highway 12 Garrison to Elliston.

* WHEN...From 8 PM Wednesday to 8 AM MST Friday.

* IMPACTS...The slick conditions could impact the Thursday morning 
  and evening commutes. The cold wind chills could result in 
  hypothermia if precautions are not taken. Young animals will be 
  affected by the raw conditions.

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.

&&

$$

MTZ043-142230-
/O.NEW.KMSO.WW.Y.0019.240215T0300Z-240216T1500Z/
Potomac/Seeley Lake Region-
152 PM MST Tue Feb 13 2024

...WINTER WEATHER ADVISORY IN EFFECT FROM 8 PM WEDNESDAY TO 8 AM MST 
FRIDAY...

* WHAT...Snow expected. Total snow accumulations between 2 and 6 
  inches. Easterly winds of 10 to 20 mph with gusts to 30 mph in the 
  channeled terrain Thursday morning.

* WHERE...Highway 83 Seeley Lake to Condon, I-90 East Missoula to 
  Bearmouth, and Highway 200 Bonner to Greenough.

* WHEN...From 8 PM Wednesday to 8 AM MST Friday.

* IMPACTS...Slick conditions could impact the Thursday morning and 
  evening commutes. Young animals may be affected. Patchy blowing 
  and drifting snow.

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.

&&

$$

IDZ010-142230-
/O.NEW.KMSO.WW.Y.0019.240215T0600Z-240215T1800Z/
Eastern Lemhi County-
152 PM MST Tue Feb 13 2024

...WINTER WEATHER ADVISORY IN EFFECT FROM 11 PM WEDNESDAY TO 11 AM 
MST THURSDAY...

* WHAT...Snow expected. Total snow accumulations of 1 to 2 inches 
  lower elevations...up to 4 inches at Lost Trail Pass.

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

* WHEN...From 11 PM Wednesday to 11 AM MST Thursday.

* IMPACTS...Travel during the Thursday morning commute 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.

&&

$$
5 follow-up statements
771 
WWUS45 KMSO 140331
WSWMSO

URGENT - WINTER WEATHER MESSAGE
National Weather Service Missoula MT
831 PM MST Tue Feb 13 2024

MTZ043-150345-
/O.EXA.KMSO.WW.Y.0017.000000T0000Z-240214T1200Z/
/O.CON.KMSO.WW.Y.0019.240215T0300Z-240216T1500Z/
Potomac/Seeley Lake Region-
831 PM MST Tue Feb 13 2024

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 5 AM MST WEDNESDAY...
...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 8 PM WEDNESDAY TO 
8 AM MST FRIDAY...

* WHAT...For the first Winter Weather Advisory, snow. Additional 
  snow accumulations of 1 to 3 inches.

For the second Winter Weather Advisory, Snow expected. Total snow 
accumulations between 2 and 6 inches. Easterly winds of 10 to 20 mph 
with gusts to 30 mph in the channeled terrain Thursday morning.

* WHERE...Highway 83 Seeley Lake to Condon, I-90 East Missoula to 
  Bearmouth, and Highway 200 Bonner to Greenough.

* WHEN...For the first Winter Weather Advisory, until 5 AM MST 
  Wednesday. For the second Winter Weather Advisory, from 8 PM 
  Wednesday to 8 AM MST Friday.

* IMPACTS...Travel could be affected.  Young animals may be 
  affected. Patchy blowing and drifting snow.

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.

&&

$$

MTZ001-150345-
/O.CON.KMSO.WW.Y.0018.000000T0000Z-240214T1200Z/
/O.CON.KMSO.WW.Y.0019.240215T0600Z-240216T0600Z/
Kootenai/Cabinet Region-
831 PM MST Tue Feb 13 2024

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST 
WEDNESDAY...
...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 11 PM WEDNESDAY TO 
11 PM MST THURSDAY...

* WHAT...For the first Winter Weather Advisory, snow expected. Total 
  snow accumulations up to 3 inches. For the second Winter Weather 
  Advisory, snow expected. Total snow accumulations up to 2 inches. 
  Breezy north to east winds 10 to 25 mph Thursday morning Highway 2.

* WHERE...Highway 93 Eureka to Whitefish, Highway 37 Eureka to 
  Libby, Highway 2 Kalispell to Libby, and Highway 56 Bull Lake Road.

* WHEN...For the first Winter Weather Advisory, until 5 AM MST 
  Wednesday. For the second Winter Weather Advisory, from 11 PM 
  Wednesday to 11 PM MST Thursday.

* IMPACTS...Plan on slippery road conditions. Patchy blowing and 
  drifting snow. Wind chills in the single digits could cause 
  hypothermia. The raw conditions will affect young animals.

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.

&&

$$

MTZ002-150345-
/O.CON.KMSO.WW.Y.0017.000000T0000Z-240214T1200Z/
/O.CON.KMSO.WC.Y.0002.240215T0600Z-240216T1200Z/
West Glacier Region-
831 PM MST Tue Feb 13 2024

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST 
WEDNESDAY...
...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 11 PM WEDNESDAY TO 5 
AM MST FRIDAY...

* WHAT...For the Winter Weather Advisory, snow. Additional snow 
  accumulations between 1 and 2 inches. For the Wind Chill Advisory, 
  very cold wind chills expected. Wind chills as low as 25 below 
  zero, except up to 30 below zero in the mountains. North to east 
  winds will ramp up Wednesday night into Thursday, gusting up to 40 
  mph in the channeled terrain.

* WHERE...Highway 83 Bigfork to Swan Lake, Polebridge, Marias Pass, 
  Essex, and Bad Rock Canyon.

* WHEN...For the Winter Weather Advisory, until 5 AM MST Wednesday. 
  For the Wind Chill Advisory, from 11 PM Wednesday to 5 AM MST 
  Friday.

* IMPACTS...Plan on slippery road conditions. The cold wind chills 
  could result in hypothermia and frostbite if precautions are not 
  taken for people...young animals will be affected. Patchy blowing 
  and drifting snow. An additional 1 to 2 inches of snow is expected 
  Thursday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use caution while traveling outside. 

Keep pets indoors as much as possible.

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.

&&

$$

MTZ003-150345-
/O.CON.KMSO.WW.Y.0018.000000T0000Z-240214T1800Z/
/O.CON.KMSO.WW.Y.0019.240215T0300Z-240216T1200Z/
Flathead/Mission Valleys-
831 PM MST Tue Feb 13 2024

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST 
WEDNESDAY...
...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 8 PM WEDNESDAY TO 
5 AM MST FRIDAY...

* WHAT...For the first Winter Weather Advisory, snow. Additional 
  snow accumulations up to 2 inches. Snow shuts off in the Flathead 
  Valley this evening, but persists in the Mission Valley tonight. 
  Winds gusting as high as 30 mph. For the second Winter Weather 
  Advisory, snow expected. Total snow accumulations up to 3 inches...
  highest amounts south of Polson. North to east winds 10 to 25 mph 
  except gusts to 40 mph at Badrock Canyon.

* WHERE...Flathead Lake, Mission Valley, Flathead Valley, and Polson.

* WHEN...For the first Winter Weather Advisory, until 11 AM MST 
  Wednesday. For the second Winter Weather Advisory, from 8 PM 
  Wednesday to 5 AM MST Friday.

* IMPACTS...Plan on slippery road conditions. Wind chill 
  temperatures in the single digits in the Flathead could cause 
  hypothermia. The raw conditions could also affect young animals. 
  Patchy blowing and drifting snow.

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.

&&

$$

IDZ007-150345-
/O.CON.KMSO.WW.Y.0019.240215T0200Z-240216T1200Z/
Orofino/Grangeville Region-
731 PM PST Tue Feb 13 2024

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 PM WEDNESDAY TO 
4 AM PST FRIDAY...

* WHAT...Snow expected. Total snow accumulations of 1 to 4 inches. 
  May mix with rain in the lower elevations on Thursday. Black ice 
  will be a concern at night.

* WHERE...Camas Prairie, Greer Grade, and Grangeville and vicinity.

* WHEN...From 6 PM Wednesday to 4 AM PST Friday.

* IMPACTS...Slick conditions could impact the Thursday morning and 
  evening commutes.

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.

&&

$$

IDZ008-150345-
/O.CON.KMSO.WW.Y.0019.240215T0200Z-240216T1200Z/
Lower Hells Canyon/Salmon River Region-
731 PM PST Tue Feb 13 2024

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 PM WEDNESDAY TO 
4 AM PST FRIDAY ABOVE 3000 FEET...

* WHAT...Snow expected above 3000 feet. Total snow accumulations of 
  2 to 4 inches. Black ice will be a concern at night.

* WHERE...White Bird Grade.

* WHEN...From 6 PM Wednesday to 4 AM PST Friday.

* IMPACTS...Slick conditions could impact the Thursday morning and 
  evening commutes.

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.

&&

$$

IDZ005-150345-
/O.CON.KMSO.WW.Y.0019.240215T0300Z-240216T1200Z/
Northern Clearwater Mountains-
731 PM PST Tue Feb 13 2024

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 7 PM WEDNESDAY TO 
4 AM PST FRIDAY...

* WHAT...Snow expected. Total snow accumulations between 2 and 6 
  inches...except up to 10 inches in the Northern Clearwater 
  Mountains east and south of Pierce. Northeast winds 10 to 20 mph 
  develop Thursday night.

* WHERE...Pierce, Highway 11 Pierce to Headquarters, and Elk River.

* WHEN...From 7 PM Wednesday to 4 AM PST Friday.

* IMPACTS...Travel could be affected. Raw conditions may affect 
  young animals.

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.

&&

$$

IDZ006-150345-
/O.CON.KMSO.WW.Y.0019.240215T0300Z-240216T1500Z/
Southern Clearwater Mountains-
731 PM PST Tue Feb 13 2024

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 7 PM WEDNESDAY TO 
7 AM PST FRIDAY...

* WHAT...Snow expected. Total snow accumulations between 5 and 12 
  inches. North to east winds 10 to 20 mph develop Thursday night.

* WHERE...Elk City, Dixie, and Highway 12 Lowell to Lolo Pass.

* WHEN...From 7 PM Wednesday to 7 AM PST Friday.

* IMPACTS...Travel could be affected. The slick conditions could 
  impact the Thursday morning and evening commutes. The raw 
  conditions may affect young animals.

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.

&&

$$

IDZ009-150345-
/O.CON.KMSO.WW.Y.0019.240215T0300Z-240215T1800Z/
Western Lemhi County-
831 PM MST Tue Feb 13 2024

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 8 PM WEDNESDAY TO 
11 AM MST THURSDAY...

* WHAT...Snow expected. Total snow accumulations between 2 and 4 
  inches.

* WHERE...Shoup.

* WHEN...From 8 PM Wednesday to 11 AM MST Thursday.

* IMPACTS...Travel during the Thursday morning commute 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.

&&

$$

MTZ004-150345-
/O.CON.KMSO.WW.Y.0019.240215T0300Z-240216T1500Z/
Lower Clark Fork Region-
831 PM MST Tue Feb 13 2024

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 8 PM WEDNESDAY TO 
8 AM MST FRIDAY...

* WHAT...Snow expected. Total snow accumulations between 2 and 7 
  inches. Gusty north to east winds 10 to 25 mph are expected 
  Thursday morning.

* WHERE...I-90 Lookout Pass to Haugan, Highway 200 Thompson Falls to 
  Plains, Evaro Hill, and Highway 200 Trout Creek to Heron.

* WHEN...From 8 PM Wednesday to 8 AM MST Friday.

* IMPACTS...The slick conditions could impact the Thursday morning 
  and evening commutes. The raw conditions may affect young animals.

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.

&&

$$

MTZ005-150345-
/O.CON.KMSO.WW.Y.0019.240215T0300Z-240216T1500Z/
Missoula/Bitterroot Valleys-
831 PM MST Tue Feb 13 2024

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 8 PM WEDNESDAY TO 
8 AM MST FRIDAY...

* WHAT...Snow expected. Mixed precipitation possible south of 
  Hamilton. Total snow accumulations between 1 and 7 inches...with 
  the highest in the Bitterroot. Strong north to east winds 15 to 25 
  mph with gusts to 35 mph in Missoula Wednesday night through 
  Thursday morning. North to east winds 10 to 20 mph in the 
  Bitterroot.

* WHERE...Missoula and Bitterroot Valley.

* WHEN...From 8 PM Wednesday to 8 AM MST Friday.

* IMPACTS...Plan on slippery road conditions, especially during the 
  Thursday morning and evening commutes. The raw conditions may 
  affect young animals.

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.

&&

$$

MTZ006-150345-
/O.CON.KMSO.WW.Y.0019.240215T0300Z-240216T1500Z/
Bitterroot/Sapphire Mountains-
831 PM MST Tue Feb 13 2024

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 8 PM WEDNESDAY TO 
8 AM MST FRIDAY...

* WHAT...Snow expected. Mixed precipitation possible from Painted 
  Rocks to Sula on Thursday. Total snow accumulations between 5 and 
  12 inches.

* WHERE...Lolo Pass and Highway 93 Sula to Lost Trail Pass.

* WHEN...From 8 PM Wednesday to 8 AM MST Friday.

* IMPACTS...The slick conditions could impact the Thursday morning 
  and evening commutes. The raw conditions may affect young animals.

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.

&&

$$

MTZ007-150345-
/O.CON.KMSO.WW.Y.0019.240215T0300Z-240216T1500Z/
Butte/Blackfoot Region-
831 PM MST Tue Feb 13 2024

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 8 PM WEDNESDAY TO 
8 AM MST FRIDAY...

* WHAT...Snow expected. Total snow accumulations between 2 and 5 
  inches. Gusty north to east winds 10 to 25 mph...with gusts to 40 
  mph in channeled terrain. Wind chills to 15 below zero on 
  Thursday. Patchy blowing and drifting snow.

* WHERE...Highway 12 Garrison to Elliston, MacDonald Pass, Homestake 
  Pass, Georgetown Lake, and Butte.

* WHEN...From 8 PM Wednesday to 8 AM MST Friday.

* IMPACTS...The slick conditions could impact the Thursday morning 
  and evening commutes. The cold wind chills could result in 
  hypothermia if precautions are not taken. Young animals will be 
  affected by the raw conditions.

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.

&&

$$

IDZ010-150345-
/O.CON.KMSO.WW.Y.0019.240215T0600Z-240215T1800Z/
Eastern Lemhi County-
831 PM MST Tue Feb 13 2024

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 11 PM WEDNESDAY TO 
11 AM MST THURSDAY...

* WHAT...Snow expected. Total snow accumulations of 1 to 2 inches 
  lower elevations...up to 4 inches at Lost Trail Pass.

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

* WHEN...From 11 PM Wednesday to 11 AM MST Thursday.

* IMPACTS...Travel during the Thursday morning commute 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.

&&

$$
436 
WWUS45 KMSO 141459
WSWMSO

URGENT - WINTER WEATHER MESSAGE
National Weather Service Missoula MT
759 AM MST Wed Feb 14 2024

MTZ003-151500-
/O.CAN.KMSO.WW.Y.0018.000000T0000Z-240214T1800Z/
/O.CON.KMSO.WW.Y.0019.240215T0300Z-240216T1200Z/
Flathead/Mission Valleys-
759 AM MST Wed Feb 14 2024

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 8 PM THIS EVENING 
TO 5 AM MST FRIDAY...

* WHAT...Snow expected. Total snow accumulations up to 3 inches...
  highest amounts south of Polson. North to east winds 10 to 25 mph 
  except gusts to 40 mph at Badrock Canyon.

* WHERE...Flathead Valley, Polson, Mission Valley, and Flathead Lake.

* WHEN...From 8 PM this evening to 5 AM MST Friday.

* IMPACTS...Plan on slippery road conditions. Wind chill 
  temperatures in the single digits in the Flathead could cause 
  hypothermia. The raw conditions could also affect young animals. 
  Patchy blowing and drifting snow.

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.

&&

$$

IDZ007-151500-
/O.CON.KMSO.WW.Y.0019.240215T0200Z-240216T1200Z/
Orofino/Grangeville Region-
659 AM PST Wed Feb 14 2024

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING 
TO 4 AM PST FRIDAY...

* WHAT...Snow expected. Total snow accumulations of 1 to 4 inches. 
  May mix with rain in the lower elevations on Thursday. Black ice 
  will be a concern at night.

* WHERE...Camas Prairie, Grangeville and vicinity, and Greer Grade.

* WHEN...From 6 PM this evening to 4 AM PST Friday.

* IMPACTS...Slick conditions could impact the Thursday morning and 
  evening commutes.

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.

&&

$$

IDZ008-151500-
/O.CON.KMSO.WW.Y.0019.240215T0200Z-240216T1200Z/
Lower Hells Canyon/Salmon River Region-
659 AM PST Wed Feb 14 2024

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING 
TO 4 AM PST FRIDAY ABOVE 3000 FEET...

* WHAT...Snow expected above 3000 feet. Total snow accumulations of 
  2 to 4 inches. Black ice will be a concern at night.

* WHERE...White Bird Grade.

* WHEN...From 6 PM this evening to 4 AM PST Friday.

* IMPACTS...Slick conditions could impact the Thursday morning and 
  evening commutes.

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.

&&

$$

IDZ005-151500-
/O.CON.KMSO.WW.Y.0019.240215T0300Z-240216T1200Z/
Northern Clearwater Mountains-
659 AM PST Wed Feb 14 2024

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 7 PM THIS EVENING 
TO 4 AM PST FRIDAY...

* WHAT...Snow expected. Total snow accumulations between 2 and 6 
  inches...except up to 10 inches in the Northern Clearwater 
  Mountains east and south of Pierce. Northeast winds 10 to 20 mph 
  develop Thursday night.

* WHERE...Pierce, Elk River, and Highway 11 Pierce to Headquarters.

* WHEN...From 7 PM this evening to 4 AM PST Friday.

* IMPACTS...Travel could be affected. Raw conditions may affect 
  young animals.

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.

&&

$$

IDZ006-151500-
/O.CON.KMSO.WW.Y.0019.240215T0300Z-240216T1500Z/
Southern Clearwater Mountains-
659 AM PST Wed Feb 14 2024

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 7 PM THIS EVENING 
TO 7 AM PST FRIDAY...

* WHAT...Snow expected. Total snow accumulations between 5 and 12 
  inches. North to east winds 10 to 20 mph develop Thursday night.

* WHERE...Elk City, Highway 12 Lowell to Lolo Pass, and Dixie.

* WHEN...From 7 PM this evening to 7 AM PST Friday.

* IMPACTS...Travel could be affected. The slick conditions could 
  impact the Thursday morning and evening commutes. The raw 
  conditions may affect young animals.

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.

&&

$$

IDZ009-151500-
/O.CON.KMSO.WW.Y.0019.240215T0300Z-240215T1800Z/
Western Lemhi County-
759 AM MST Wed Feb 14 2024

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

* WHAT...Snow expected. Total snow accumulations between 1 and 6 
  inches.

* WHERE...Shoup.

* WHEN...From 8 PM this evening to 11 AM MST Thursday.

* IMPACTS...Travel during the Thursday morning commute 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.

&&

$$

MTZ004-151500-
/O.CON.KMSO.WW.Y.0019.240215T0300Z-240216T1500Z/
Lower Clark Fork Region-
759 AM MST Wed Feb 14 2024

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

* WHAT...Snow expected. Total snow accumulations between 2 and 7 
  inches. Gusty north to east winds 10 to 25 mph are expected 
  Thursday morning.

* WHERE...Highway 200 Trout Creek to Heron, I-90 Lookout Pass to 
  Haugan, Evaro Hill, and Highway 200 Thompson Falls to Plains.

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

* IMPACTS...The slick conditions could impact the Thursday morning 
  and evening commutes. The raw conditions may affect young animals.

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.

&&

$$

MTZ005-151500-
/O.CON.KMSO.WW.Y.0019.240215T0300Z-240216T1500Z/
Missoula/Bitterroot Valleys-
759 AM MST Wed Feb 14 2024

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

* WHAT...Snow expected. Mixed precipitation possible south of 
  Hamilton. Total snow accumulations between 1 and 7 inches...with 
  the highest in the Bitterroot. Strong north to east winds 15 to 25 
  mph with gusts to 35 mph in Missoula Wednesday night through 
  Thursday morning. North to east winds 10 to 20 mph in the 
  Bitterroot.

* WHERE...Missoula and Bitterroot Valley.

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

* IMPACTS...Plan on slippery road conditions, especially during the 
  Thursday morning and evening commutes. The raw conditions may 
  affect young animals.

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.

&&

$$

MTZ006-151500-
/O.CON.KMSO.WW.Y.0019.240215T0300Z-240216T1500Z/
Bitterroot/Sapphire Mountains-
759 AM MST Wed Feb 14 2024

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

* WHAT...Snow expected. Mixed precipitation possible from Painted 
  Rocks to Sula on Thursday. Total snow accumulations between 5 and 
  12 inches.

* WHERE...Highway 93 Sula to Lost Trail Pass and Lolo Pass.

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

* IMPACTS...The slick conditions could impact the Thursday morning 
  and evening commutes. The raw conditions may affect young animals.

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.

&&

$$

MTZ007-151500-
/O.CON.KMSO.WW.Y.0019.240215T0300Z-240216T1500Z/
Butte/Blackfoot Region-
759 AM MST Wed Feb 14 2024

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

* WHAT...Snow expected. Total snow accumulations between 2 and 5 
  inches. Gusty north to east winds 10 to 25 mph...with gusts to 40 
  mph in channeled terrain. Wind chills to 15 below zero on 
  Thursday. Patchy blowing and drifting snow.

* WHERE...Georgetown Lake, Butte, Homestake Pass, Highway 12 
  Garrison to Elliston, and MacDonald Pass.

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

* IMPACTS...The slick conditions could impact the Thursday morning 
  and evening commutes. The cold wind chills could result in 
  hypothermia if precautions are not taken. Young animals will be 
  affected by the raw conditions.

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.

&&

$$

MTZ043-151500-
/O.CON.KMSO.WW.Y.0019.240215T0300Z-240216T1500Z/
Potomac/Seeley Lake Region-
759 AM MST Wed Feb 14 2024

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

* WHAT...Total snow accumulations between 2 and 6 inches. Easterly 
  winds of 10 to 20 mph with gusts to 30 mph in the channeled 
  terrain Thursday morning.

* WHERE...Highway 83 Seeley Lake to Condon, Highway 200 Bonner to 
  Greenough, and I-90 East Missoula to Bearmouth.

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

* IMPACTS...Travel could be affected.  Young animals may be 
  affected. Patchy blowing and drifting snow.

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.

&&

$$

IDZ010-151500-
/O.CON.KMSO.WW.Y.0019.240215T0600Z-240215T1800Z/
Eastern Lemhi County-
759 AM MST Wed Feb 14 2024

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 11 PM THIS EVENING 
TO 11 AM MST THURSDAY...

* WHAT...Snow expected. Total snow accumulations of 1 to 2 inches 
  lower elevations...up to 4 inches at Lost Trail Pass.

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

* WHEN...From 11 PM this evening to 11 AM MST Thursday.

* IMPACTS...Travel during the Thursday morning commute 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.

&&

$$

MTZ001-151500-
/O.CON.KMSO.WW.Y.0019.240215T0600Z-240216T0600Z/
Kootenai/Cabinet Region-
759 AM MST Wed Feb 14 2024

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

* WHAT...Snow expected. Total snow accumulations up to 4 inches.

* WHERE...Highway 56 Bull Lake Road, Highway 93 Eureka to Whitefish, 
  Highway 2 Kalispell to Libby, and Highway 37 Eureka to Libby.

* WHEN...From 11 PM this evening to 11 PM MST Thursday.

* IMPACTS...Plan on slippery road conditions. Patchy blowing and 
  drifting snow. Wind chills in the single digits could cause 
  hypothermia. The raw conditions will affect young animals.

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.

&&

$$

MTZ002-151500-
/O.CON.KMSO.WC.Y.0002.240215T0600Z-240216T1200Z/
West Glacier Region-
759 AM MST Wed Feb 14 2024

...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 
5 AM MST FRIDAY...

* WHAT...Very cold wind chills expected. Wind chills as low as 20 
  below zero.

* WHERE...Highway 83 Bigfork to Swan Lake, Marias Pass, Essex, 
  Polebridge, and Bad Rock Canyon.

* WHEN...From 11 PM this evening to 5 AM MST Friday.

* IMPACTS...Frostbite and hypothermia are possible if precautions 
  are not taken. Exposed skin may become quickly frostbitten or 
  frozen. The dangerously 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.

Keep pets indoors as much as possible.

Make frequent checks on older family, friends, and neighbors. Ensure 
portable heaters are used correctly. Do not use generators or grills 
inside.

&&

$$
855 
WWUS45 KMSO 141931
WSWMSO

URGENT - WINTER WEATHER MESSAGE
National Weather Service Missoula MT
1231 PM MST Wed Feb 14 2024

MTZ005-151945-
/O.UPG.KMSO.WW.Y.0019.240215T0300Z-240216T1500Z/
/O.NEW.KMSO.WS.W.0006.240215T0300Z-240216T0300Z/
Missoula/Bitterroot Valleys-
1231 PM MST Wed Feb 14 2024

...WINTER STORM WARNING IN EFFECT FROM 8 PM THIS EVENING TO 8 PM MST 
THURSDAY...

* WHAT...Heavy snow expected in the southern Bitterroot Valley. 
  Total snow accumulations between 6 and 9 inches. Winds gusting as 
  high as 25 mph.

* WHERE...Bitterroot Valley. Especially south of Hamilton and the 
  elevated terrain around Hamilton.

* WHEN...From 8 PM this evening to 8 PM MST Thursday.

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

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 for 
the state you are calling from can be obtained by calling 5 1 1.

&&

$$

MTZ006-151945-
/O.UPG.KMSO.WW.Y.0019.240215T0300Z-240216T1500Z/
/O.NEW.KMSO.WS.W.0006.240215T0300Z-240216T0300Z/
Bitterroot/Sapphire Mountains-
1231 PM MST Wed Feb 14 2024

...WINTER STORM WARNING IN EFFECT FROM 8 PM THIS EVENING TO 8 PM MST 
THURSDAY...

* WHAT...Heavy snow expected. Total snow accumulations between 8 and 
  14 inches.

* WHERE...Highway 93 Sula to Lost Trail Pass.

* WHEN...From 8 PM this evening to 8 PM MST Thursday.

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

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 for 
the state you are calling from can be obtained by calling 5 1 1.

&&

$$

IDZ007-151945-
/O.CON.KMSO.WW.Y.0019.240215T0200Z-240216T1200Z/
Orofino/Grangeville Region-
1131 AM PST Wed Feb 14 2024

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING 
TO 4 AM PST FRIDAY...

* WHAT...Snow expected. Total snow accumulations of 1 to 4 inches. 
  May mix with rain in the lower elevations on Thursday. Black ice 
  will be a concern at night.

* WHERE...Camas Prairie, Grangeville and vicinity, and Greer Grade.

* WHEN...From 6 PM this evening to 4 AM PST Friday.

* IMPACTS...Slick conditions could impact the Thursday morning and 
  evening commutes.

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.

&&

$$

IDZ008-151945-
/O.CON.KMSO.WW.Y.0019.240215T0200Z-240216T1200Z/
Lower Hells Canyon/Salmon River Region-
1131 AM PST Wed Feb 14 2024

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING 
TO 4 AM PST FRIDAY ABOVE 3000 FEET...

* WHAT...Snow expected above 3000 feet. Total snow accumulations of 
  2 to 4 inches. Black ice will be a concern at night.

* WHERE...White Bird Grade.

* WHEN...From 6 PM this evening to 4 AM PST Friday.

* IMPACTS...Slick conditions could impact the Thursday morning and 
  evening commutes.

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.

&&

$$

IDZ005-151945-
/O.CON.KMSO.WW.Y.0019.240215T0300Z-240216T1200Z/
Northern Clearwater Mountains-
1131 AM PST Wed Feb 14 2024

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 7 PM THIS EVENING 
TO 4 AM PST FRIDAY...

* WHAT...Snow expected. Total snow accumulations between 2 and 6 
  inches...except up to 10 inches in the Northern Clearwater 
  Mountains east and south of Pierce. Northeast winds 10 to 20 mph 
  develop Thursday night.

* WHERE...Pierce, Elk River, and Highway 11 Pierce to Headquarters.

* WHEN...From 7 PM this evening to 4 AM PST Friday.

* IMPACTS...Travel could be affected. Raw conditions may affect 
  young animals.

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.

&&

$$

IDZ006-151945-
/O.CON.KMSO.WW.Y.0019.240215T0300Z-240216T1500Z/
Southern Clearwater Mountains-
1131 AM PST Wed Feb 14 2024

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 7 PM THIS EVENING 
TO 7 AM PST FRIDAY...

* WHAT...Snow expected. Total snow accumulations between 5 and 12 
  inches. North to east winds 10 to 20 mph develop Thursday night.

* WHERE...Elk City, Highway 12 Lowell to Lolo Pass, and Dixie.

* WHEN...From 7 PM this evening to 7 AM PST Friday.

* IMPACTS...Travel could be affected. The slick conditions could 
  impact the Thursday morning and evening commutes. The raw 
  conditions may affect young animals.

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.

&&

$$

IDZ009-151800-
/O.CON.KMSO.WW.Y.0019.240215T0300Z-240215T1800Z/
Western Lemhi County-
1231 PM MST Wed Feb 14 2024

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

* WHAT...Snow expected. Total snow accumulations between 1 and 6 
  inches.

* WHERE...Williams Creek Summit and Shoup.

* WHEN...From 8 PM this evening to 11 AM MST Thursday.

* IMPACTS...Travel during the Thursday morning commute 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.

&&

$$

MTZ003-151945-
/O.CON.KMSO.WW.Y.0019.240215T0300Z-240216T1200Z/
Flathead/Mission Valleys-
1231 PM MST Wed Feb 14 2024

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 8 PM THIS EVENING 
TO 5 AM MST FRIDAY...

* WHAT...Snow expected. Total snow accumulations up to 3 inches...
  highest amounts south of Polson. North to east winds 10 to 25 mph 
  except gusts to 40 mph at Badrock Canyon.

* WHERE...Flathead Valley, Polson, Mission Valley, and Flathead Lake.

* WHEN...From 8 PM this evening to 5 AM MST Friday.

* IMPACTS...Plan on slippery road conditions. Wind chill 
  temperatures in the single digits in the Flathead could cause 
  hypothermia. The raw conditions could also affect young animals. 
  Patchy blowing and drifting snow.

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.

&&

$$

MTZ004-151945-
/O.CON.KMSO.WW.Y.0019.240215T0300Z-240216T1500Z/
Lower Clark Fork Region-
1231 PM MST Wed Feb 14 2024

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

* WHAT...Snow expected. Total snow accumulations between 2 and 7 
  inches. Gusty north to east winds 10 to 25 mph are expected 
  Thursday morning.

* WHERE...Highway 200 Trout Creek to Heron, I-90 Lookout Pass to 
  Haugan, Evaro Hill, and Highway 200 Thompson Falls to Plains.

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

* IMPACTS...The slick conditions could impact the Thursday morning 
  and evening commutes. The raw conditions may affect young animals.

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.

&&

$$

MTZ007-151945-
/O.CON.KMSO.WW.Y.0019.240215T0300Z-240216T1500Z/
Butte/Blackfoot Region-
1231 PM MST Wed Feb 14 2024

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

* WHAT...Snow expected. Total snow accumulations between 2 and 5 
  inches. Gusty north to east winds 10 to 25 mph...with gusts to 40 
  mph in channeled terrain. Wind chills to 15 below zero on 
  Thursday. Patchy blowing and drifting snow.

* WHERE...Georgetown Lake, Butte, Homestake Pass, Highway 12 
  Garrison to Elliston, and MacDonald Pass.

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

* IMPACTS...The slick conditions could impact the Thursday morning 
  and evening commutes. The cold wind chills could result in 
  hypothermia if precautions are not taken. Young animals will be 
  affected by the raw conditions.

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.

&&

$$

MTZ043-151945-
/O.CON.KMSO.WW.Y.0019.240215T0300Z-240216T1500Z/
Potomac/Seeley Lake Region-
1231 PM MST Wed Feb 14 2024

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

* WHAT...Total snow accumulations between 2 and 6 inches. Easterly 
  winds of 10 to 20 mph with gusts to 30 mph in the channeled 
  terrain Thursday morning.

* WHERE...Highway 83 Seeley Lake to Condon, Highway 200 Bonner to 
  Greenough, and I-90 East Missoula to Bearmouth.

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

* IMPACTS...Travel could be affected.  Young animals may be 
  affected. Patchy blowing and drifting snow.

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.

&&

$$

IDZ010-151800-
/O.CON.KMSO.WW.Y.0019.240215T0600Z-240215T1800Z/
Eastern Lemhi County-
1231 PM MST Wed Feb 14 2024

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 11 PM THIS EVENING 
TO 11 AM MST THURSDAY...

* WHAT...Snow expected. Total snow accumulations of 1 to 2 inches 
  lower elevations...up to 4 inches at Lost Trail Pass.

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

* WHEN...From 11 PM this evening to 11 AM MST Thursday.

* IMPACTS...Travel during the Thursday morning commute 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.

&&

$$

MTZ001-151945-
/O.CON.KMSO.WW.Y.0019.240215T0600Z-240216T0600Z/
Kootenai/Cabinet Region-
1231 PM MST Wed Feb 14 2024

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

* WHAT...For the first Winter Weather Advisory, snow expected. Total 
  snow accumulations up to 3 inches. For the second Winter Weather 
  Advisory, snow expected. Total snow accumulations up to 2 inches. 
  Breezy north to east winds 10 to 25 mph Thursday morning Highway 2.

* WHERE...Highway 56 Bull Lake Road, Highway 93 Eureka to Whitefish, 
  Highway 2 Kalispell to Libby, and Highway 37 Eureka to Libby.

* WHEN...From 11 PM this evening to 11 PM MST Thursday.

* IMPACTS...Plan on slippery road conditions. Patchy blowing and 
  drifting snow. Wind chills in the single digits could cause 
  hypothermia. The raw conditions will affect young animals.

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.

&&

$$

MTZ002-151945-
/O.CON.KMSO.WC.Y.0002.240215T0600Z-240216T1200Z/
West Glacier Region-
1231 PM MST Wed Feb 14 2024

...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 
5 AM MST FRIDAY...

* WHAT...Very cold wind chills expected. Wind chills as low as 20 
  below zero.

* WHERE...Highway 83 Bigfork to Swan Lake, Marias Pass, Essex, 
  Polebridge, and Bad Rock Canyon.

* WHEN...From 11 PM this evening to 5 AM MST Friday.

* IMPACTS...Plan on slippery road conditions. The cold wind chills 
  could result in hypothermia and frostbite if precautions are not 
  taken for people...young animals will be affected. Patchy blowing 
  and drifting snow. An additional 1 to 2 inches of snow is expected 
  Thursday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use caution while traveling outside. Wear appropriate clothing, a 
hat, and gloves.

Keep pets indoors as much as possible.

Make frequent checks on older family, friends, and neighbors. Ensure 
portable heaters are used correctly. Do not use generators or grills 
inside.

&&

$$
832 
WWUS45 KMSO 151718
WSWMSO

URGENT - WINTER WEATHER MESSAGE
National Weather Service Missoula MT
1018 AM MST Thu Feb 15 2024

MTZ005-160300-
/O.CON.KMSO.WS.W.0006.000000T0000Z-240216T0300Z/
Missoula/Bitterroot Valleys-
1018 AM MST Thu Feb 15 2024

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 8 PM MST THIS 
EVENING...

* WHAT...Heavy snow expected in the southern Bitterroot Valley. 
  Total snow accumulations between 6 and 9 inches, 1 to 3 elsewhere. 
  Scattered banded showers are expected this afternoon and evening 
  that will be capable of producing intense snow rates for the 
  Missoula and Bitterroot Valleys. Winds gusting as high as 25 mph.

* WHERE...Bitterroot Valley and Missoula.

* WHEN...Until 8 PM MST this evening.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the Thursday 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 for 
the state you are calling from can be obtained by calling 5 1 1.

&&

$$

MTZ006-160300-
/O.CON.KMSO.WS.W.0006.000000T0000Z-240216T0300Z/
Bitterroot/Sapphire Mountains-
1018 AM MST Thu Feb 15 2024

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 8 PM MST THIS 
EVENING...

* WHAT...Heavy snow expected. Total snow accumulations between 8 and 
  14 inches.

* WHERE...Lolo Pass and Highway 93 Sula to Lost Trail Pass.

* WHEN...Until 8 PM MST this evening.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the Thursday 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 for 
the state you are calling from can be obtained by calling 5 1 1.

&&

$$

IDZ009-161500-
/O.EXT.KMSO.WW.Y.0019.000000T0000Z-240216T1500Z/
Western Lemhi County-
1018 AM MST Thu Feb 15 2024

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 8 AM MST FRIDAY...

* WHAT...Snow. Additional snow accumulations between 3 and 8 inches.

* WHERE...Shoup and Williams Creek Summit.

* WHEN...Until 8 AM MST Friday.

* IMPACTS...Travel during the Thursday morning commute 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.

&&

$$

IDZ010-161500-
/O.EXT.KMSO.WW.Y.0019.000000T0000Z-240216T1500Z/
Eastern Lemhi County-
1018 AM MST Thu Feb 15 2024

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 8 AM MST FRIDAY...

* WHAT...Snow expected. Total snow accumulations of 2 to 5 inches 
  lower elevations...up to 10 inches at Lost Trail Pass.

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

* WHEN...Until 8 AM MST Friday.

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

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.

&&

$$

IDZ005-161200-
/O.CON.KMSO.WW.Y.0019.000000T0000Z-240216T1200Z/
Northern Clearwater Mountains-
918 AM PST Thu Feb 15 2024

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST FRIDAY...

* WHAT...Snow expected. Total snow accumulations between 2 and 6 
  inches...except up to 10 inches in the Northern Clearwater 
  Mountains east and south of Pierce. Northeast winds 10 to 20 mph 
  develop Thursday night.

* WHERE...Elk River, Pierce, and Highway 11 Pierce to Headquarters.

* WHEN...Until 4 AM PST Friday.

* IMPACTS...Travel could be affected. Raw conditions may affect 
  young animals.

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.

&&

$$

IDZ006-161500-
/O.CON.KMSO.WW.Y.0019.000000T0000Z-240216T1500Z/
Southern Clearwater Mountains-
918 AM PST Thu Feb 15 2024

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 AM PST FRIDAY...

* WHAT...Snow expected. Total snow accumulations between 5 and 12 
  inches. North to east winds 10 to 20 mph develop Thursday night.

* WHERE...Dixie, Elk City, and Highway 12 Lowell to Lolo Pass.

* WHEN...Until 7 AM PST Friday.

* IMPACTS...Travel could be affected. Travel could be very 
  difficult. The hazardous conditions could impact the Thursday 
  evening and Friday morning commutes. The raw conditions may affect 
  young animals.

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.

&&

$$

IDZ007-161200-
/O.CON.KMSO.WW.Y.0019.000000T0000Z-240216T1200Z/
Orofino/Grangeville Region-
918 AM PST Thu Feb 15 2024

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST FRIDAY...

* WHAT...Snow expected. Total snow accumulations of 1 to 4 inches. 
  May mix with rain in the lower elevations on Thursday. Black ice 
  will be a concern at night.

* WHERE...Camas Prairie, Greer Grade, and Grangeville and vicinity.

* WHEN...Until 4 AM PST Friday.

* IMPACTS...Travel could be affected. Plan on slippery road 
  conditions. The hazardous conditions could impact the Thursday 
  evening commute.

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.

&&

$$

IDZ008-161200-
/O.CON.KMSO.WW.Y.0019.000000T0000Z-240216T1200Z/
Lower Hells Canyon/Salmon River Region-
918 AM PST Thu Feb 15 2024

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST FRIDAY 
ABOVE 3000 FEET...

* WHAT...Snow expected above 3000 feet. Total snow accumulations of 
  2 to 4 inches. Black ice will be a concern at night.

* WHERE...White Bird Grade.

* WHEN...Until 4 AM PST Friday.

* IMPACTS...Travel could be affected. Plan on slippery road 
  conditions. The hazardous conditions could impact the Thursday 
  evening commute.

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.

&&

$$

MTZ001-160600-
/O.CON.KMSO.WW.Y.0019.000000T0000Z-240216T0600Z/
Kootenai/Cabinet Region-
1018 AM MST Thu Feb 15 2024

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

* WHAT...For the first Winter Weather Advisory, snow expected. Total 
  snow accumulations up to 3 inches. For the second Winter Weather 
  Advisory, snow expected. Total snow accumulations up to 2 inches. 
  Breezy north to east winds 10 to 25 mph Thursday morning Highway 2.

* WHERE...Highway 2 Kalispell to Libby, Highway 56 Bull Lake Road, 
  Highway 93 Eureka to Whitefish, and Highway 37 Eureka to Libby.

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

* IMPACTS...Travel could be affected. Plan on slippery road 
  conditions. The hazardous conditions could impact the Thursday 
  evening commute. Wind chills in the single digits could cause 
  hypothermia. The raw conditions will affect young animals.

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.

&&

$$

MTZ003-161200-
/O.CON.KMSO.WW.Y.0019.000000T0000Z-240216T1200Z/
Flathead/Mission Valleys-
1018 AM MST Thu Feb 15 2024

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

* WHAT...Snow expected. Total snow accumulations up to 3 inches...
  highest amounts south of Polson. North to east winds 10 to 25 mph 
  except gusts to 40 mph at Badrock Canyon.

* WHERE...Flathead Lake, Polson, Flathead Valley, and Mission Valley.

* WHEN...Until 5 AM MST Friday.

* IMPACTS...Travel could be affected. Plan on slippery road 
  conditions. The hazardous conditions could impact the Thursday 
  evening commute. Wind chill temperatures in the single digits in 
  the Flathead could cause hypothermia. The raw conditions could 
  also affect young animals. Patchy blowing and drifting snow.

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.

&&

$$

MTZ004-161500-
/O.CON.KMSO.WW.Y.0019.000000T0000Z-240216T1500Z/
Lower Clark Fork Region-
1018 AM MST Thu Feb 15 2024

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 AM MST FRIDAY...

* WHAT...Snow expected. Total snow accumulations between 2 and 7 
  inches.

* WHERE...Evaro Hill, Highway 200 Thompson Falls to Plains, Highway 
  200 Trout Creek to Heron, and I-90 Lookout Pass to Haugan.

* WHEN...Until 8 AM MST Friday.

* IMPACTS...Travel could be affected. Plan on slippery road 
  conditions. The hazardous conditions could impact the Thursday 
  evening and Friday morning commutes. The raw conditions may affect 
  young animals.

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.

&&

$$

MTZ007-161500-
/O.CON.KMSO.WW.Y.0019.000000T0000Z-240216T1500Z/
Butte/Blackfoot Region-
1018 AM MST Thu Feb 15 2024

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 AM MST FRIDAY...

* WHAT...Snow expected. Total snow accumulations between 2 and 5 
  inches. Gusty north to east winds 10 to 25 mph...with gusts to 40 
  mph in channeled terrain. Wind chills to 15 below zero on 
  Thursday. Patchy blowing and drifting snow.

* WHERE...Highway 12 Garrison to Elliston, Homestake Pass, MacDonald 
  Pass, Butte, and Georgetown Lake.

* WHEN...Until 8 AM MST Friday.

* IMPACTS...Travel could be affected. Plan on slippery road 
  conditions. The hazardous conditions could impact the Thursday 
  evening and Friday morning commutes. The cold wind chills could 
  result in hypothermia if precautions are not taken. Young animals 
  will be affected by the raw conditions.

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.

&&

$$

MTZ043-161500-
/O.CON.KMSO.WW.Y.0019.000000T0000Z-240216T1500Z/
Potomac/Seeley Lake Region-
1018 AM MST Thu Feb 15 2024

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 AM MST FRIDAY...

* WHAT...Total snow accumulations between 2 and 6 inches. 

* WHERE...I-90 East Missoula to Bearmouth, Highway 200 Bonner to 
  Greenough, and Highway 83 Seeley Lake to Condon.

* WHEN...Until 8 AM MST Friday.

* IMPACTS...Travel could be affected. Plan on slippery road 
  conditions. The hazardous conditions could impact the Thursday 
  evening and Friday morning commutes. Young animals may 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.

&&

$$

MTZ002-161200-
/O.CON.KMSO.WC.Y.0002.000000T0000Z-240216T1200Z/
West Glacier Region-
1018 AM MST Thu Feb 15 2024

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST FRIDAY...

* WHAT...Very cold wind chills. Wind chills as low as 20 below zero.

* WHERE...Bad Rock Canyon, Polebridge, Essex, Marias Pass, and 
  Highway 83 Bigfork to Swan Lake.

* WHEN...Until 5 AM MST Friday.

* IMPACTS...Plan on slippery road conditions. The cold wind chills 
  could result in hypothermia and frostbite if precautions are not 
  taken for people...young animals will be affected. Patchy blowing 
  and drifting snow. An additional 1 to 2 inches of snow is expected 
  Thursday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use caution while traveling outside. 

Keep pets indoors as much as possible.

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.

&&

$$
808 
WWUS45 KMSO 160239
WSWMSO

URGENT - WINTER WEATHER MESSAGE
National Weather Service Missoula MT
739 PM MST Thu Feb 15 2024

MTZ005-161500-
/O.EXP.KMSO.WS.W.0006.000000T0000Z-240216T0300Z/
/O.EXB.KMSO.WW.Y.0019.240216T0300Z-240216T1500Z/
Missoula/Bitterroot Valleys-
739 PM MST Thu Feb 15 2024

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 8 AM MST FRIDAY...

* WHAT...Snow expected. Total additional snow accumulations up to 3 
  inches in the southern Bitterroot.

* WHERE...Bitterroot Valley.

* WHEN...Until 8 AM MST Friday.

* 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.

&&

$$

MTZ006-161500-
/O.EXP.KMSO.WS.W.0006.000000T0000Z-240216T0300Z/
/O.EXB.KMSO.WW.Y.0019.240216T0300Z-240216T1500Z/
Bitterroot/Sapphire Mountains-
739 PM MST Thu Feb 15 2024

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 8 AM MST FRIDAY...

* WHAT...Snow expected. Total snow accumulations between 2 and 4 
  inches.

* WHERE...Lolo Pass and Highway 93 Sula to Lost Trail Pass.

* WHEN...Until 8 AM MST Friday.

* 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.

&&

$$

MTZ001-160345-
/O.CAN.KMSO.WW.Y.0019.000000T0000Z-240216T0600Z/
Kootenai/Cabinet Region-
739 PM MST Thu Feb 15 2024

...WINTER WEATHER ADVISORY IS CANCELLED...

Snow has ended or become very light, so we've ended the advisory.

$$

MTZ003-160345-
/O.CAN.KMSO.WW.Y.0019.000000T0000Z-240216T1200Z/
Flathead/Mission Valleys-
739 PM MST Thu Feb 15 2024

...WINTER WEATHER ADVISORY IS CANCELLED...

Snow has ended or become very light, so we've ended the advisory.

$$

MTZ002-160345-
/O.CAN.KMSO.WC.Y.0002.000000T0000Z-240216T1200Z/
West Glacier Region-
739 PM MST Thu Feb 15 2024

...WIND CHILL ADVISORY IS CANCELLED...

Winds are decreasing and temperatures are in the teens again so 
we've ended the advisory.

$$

IDZ005-161200-
/O.CON.KMSO.WW.Y.0019.000000T0000Z-240216T1200Z/
Northern Clearwater Mountains-
639 PM PST Thu Feb 15 2024

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST FRIDAY...

* WHAT...Snow. Additional snow accumulations up to two inches.

* WHERE...Pierce, Elk River, and Highway 11 Pierce to Headquarters.

* WHEN...Until 4 AM PST Friday.

* IMPACTS...Travel could be affected. Plan on slippery road 
  conditions.

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.

&&

$$

IDZ006-161500-
/O.CON.KMSO.WW.Y.0019.000000T0000Z-240216T1500Z/
Southern Clearwater Mountains-
639 PM PST Thu Feb 15 2024

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 AM PST FRIDAY...

* WHAT...Snow. Additional snow accumulations between 2 and 4 inches.

* WHERE...Elk City, Highway 12 Lowell to Lolo Pass, and Dixie.

* WHEN...Until 7 AM PST Friday.

* IMPACTS...Travel could be affected. Plan on slippery road 
  conditions. The hazardous conditions could impact the Friday 
  morning commute.

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.

&&

$$

IDZ007-161200-
/O.CON.KMSO.WW.Y.0019.000000T0000Z-240216T1200Z/
Orofino/Grangeville Region-
639 PM PST Thu Feb 15 2024

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST FRIDAY...

* WHAT...Snow. Additional snow accumulations up to two inches.

* WHERE...Greer Grade, Camas Prairie, and Grangeville and vicinity.

* WHEN...Until 4 AM PST Friday.

* IMPACTS...Travel could be affected. Plan on slippery road 
  conditions.

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.

&&

$$

IDZ008-161200-
/O.CON.KMSO.WW.Y.0019.000000T0000Z-240216T1200Z/
Lower Hells Canyon/Salmon River Region-
639 PM PST Thu Feb 15 2024

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST FRIDAY 
ABOVE 3000 FEET...

* WHAT...Snow above 3000 feet. Additional snow accumulations between 
  1 and 3 inches.

* WHERE...White Bird Grade.

* WHEN...Until 4 AM PST Friday.

* IMPACTS...Travel could be affected. Plan on slippery road 
  conditions.

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.

&&

$$

IDZ009-161500-
/O.CON.KMSO.WW.Y.0019.000000T0000Z-240216T1500Z/
Western Lemhi County-
739 PM MST Thu Feb 15 2024

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 AM MST FRIDAY...

* WHAT...Snow. Additional snow accumulations between 2 and 4 inches.

* WHERE...Shoup and Williams Creek Summit.

* WHEN...Until 8 AM MST Friday.

* IMPACTS...Travel could be affected. Plan on slippery road 
  conditions. The hazardous conditions could impact the Friday 
  morning commute.

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.

&&

$$

IDZ010-161500-
/O.CON.KMSO.WW.Y.0019.000000T0000Z-240216T1500Z/
Eastern Lemhi County-
739 PM MST Thu Feb 15 2024

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 AM MST FRIDAY...

* WHAT...Snow. Additional snow accumulations between 2 and 4 inches.

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

* WHEN...Until 8 AM MST Friday.

* IMPACTS...Travel could be affected. Plan on slippery road 
  conditions. The hazardous conditions could impact the Friday 
  morning commute.

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.

&&

$$

MTZ004-161500-
/O.CON.KMSO.WW.Y.0019.000000T0000Z-240216T1500Z/
Lower Clark Fork Region-
739 PM MST Thu Feb 15 2024

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 AM MST FRIDAY...

* WHAT...Snow. Additional snow accumulations up to one inch.

* WHERE...Highway 200 Thompson Falls to Plains, I-90 Lookout Pass to 
  Haugan, Evaro Hill, and Highway 200 Trout Creek to Heron.

* WHEN...Until 8 AM MST Friday.

* IMPACTS...Travel could be affected. Plan on slippery road 
  conditions. The hazardous conditions could impact the Friday 
  morning commute.

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.

&&

$$

MTZ007-161500-
/O.CON.KMSO.WW.Y.0019.000000T0000Z-240216T1500Z/
Butte/Blackfoot Region-
739 PM MST Thu Feb 15 2024

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 AM MST FRIDAY...

* WHAT...Snow. Additional snow accumulations between 1 and 3 inches.

* WHERE...Highway 12 Garrison to Elliston, Georgetown Lake, Butte, 
  Homestake Pass, and MacDonald Pass.

* WHEN...Until 8 AM MST Friday.

* IMPACTS...Travel could be affected. Plan on slippery road 
  conditions. The hazardous conditions could impact the Friday 
  morning commute.

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.

&&

$$

MTZ043-161500-
/O.CON.KMSO.WW.Y.0019.000000T0000Z-240216T1500Z/
Potomac/Seeley Lake Region-
739 PM MST Thu Feb 15 2024

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 AM MST FRIDAY...

* WHAT...Snow. Additional snow accumulations up to two inches.

* WHERE...I-90 East Missoula to Bearmouth, Highway 83 Seeley Lake to 
  Condon, and Highway 200 Bonner to Greenough.

* WHEN...Until 8 AM MST Friday.

* IMPACTS...Travel could be affected. Plan on slippery road 
  conditions. The hazardous conditions could impact the Friday 
  morning commute.

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.

&&

$$

What forecasters said that day

The local office's own words before this wind chill advisory 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 advisory went out at Feb 13, 3:09 AM MST, 10 hours 43 minutes earlier.

Area forecast discussion, Feb 13, 3:09 AM MST, 10 hours 43 minutes before
Area Forecast Discussion
National Weather Service Missoula MT
309 AM MST Tue Feb 13 2024

.DISCUSSION...Although drier air has moved into northwest Montana
behind the first short wave, water vapor imagery is showing the
moisture associated with the second short wave descending south
from British Columbia.

The modified Arctic air mass barely shows up on regional surface
observations beyond northwest winds, cooling post frontal is quite
minor for this initial surge. Timing remains this afternoon for
the Flathead Valley, by evening into the Mission Valley, and
eventually overnight Tuesday for the I-90 corridor. High
resolution models are less than enthused for organized
precipitation along the Arctic Front. Still brief but moderate
snow is possible, lowered visibility with northeast winds up to 25
mph, and falling temperatures post frontal.

There is rapid drying behind the front and the Arctic boundary may
retreat or at least the pressure gradient relax during the day
Wednesday. Timing differences remain between models but moisture
increases from the west beginning Wednesday evening over north-
central ID and west-central MT. Around the time that moisture
increases the Arctic re-energizes and pushes back towards the I-90
corridor and potentially south into the Bitterroot Valley. This
subtle and shallow Arctic air mass will be just enough to negate
some of the downsloping effects of 25 to 35 kts westerly mid-level
winds. One to three inches is forecast for western Montanan
valleys, while higher terrain receives 4 to 8 inches, with locally
higher amounts in the Bitterroot Crest.

Snow levels will subtly creep up in north-central ID limiting snow
accumulations in valleys 3500 feet or lower. While 4 to 8 inches
of snow in the Clearwater Mountains can be expected. Winter
driving conditions over Lolo and Lost Trail Passes will be present at
times through Thursday evening.

The temperature forecast is not as cold compared to 24 hours ago,
however, cold wind chills can be expected both Wednesday and
Thursday mornings in northwest Montana and along the Continental
Divide.

The Arctic is quickly moderated by Saturday afternoon as a weak
wave pushes up from the southwest bringing a period of light snow
to the mountains of Lemhi County ID and southwest MT overnight
Saturday.

&&

.AVIATION...During the afternoon a Arctic Cold Front will slide
southwest from the Continental Divide affecting KGPI by 13/2100z.
Expect a brief period of snow, gusty northeast winds up to 22 kts,
with reductions in visibility and ceilings. This front will
continue its movement south and west through the evening affecting
KBTM by 14/0300z and KMSO 14/0700z. There is less confidence in
precipitation along the front during the overnight period but
gusty northeast winds are expected. KHRF and terminals in Idaho
are not expected to be affected by the front through Wednesday
afternoon.

&&

.MSO WATCHES/WARNINGS/ADVISORIES...
MT...Winter Weather Advisory from 2 PM Tuesday to 5 AM MST Wednesday
     for Kootenai/Cabinet Region.

     Winter Weather Advisory until 5 AM MST Wednesday for West
     Glacier Region.

     Winter Weather Advisory from noon Tuesday to 11 AM MST Wednesday
     for Flathead/Mission Valleys.

     Winter Weather Advisory until 11 AM MST Tuesday for
     Potomac/Seeley Lake Region.

ID...None.
&&

The office that day

Everything else NWS Missoula, MT issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Feb 13, 1:52 PM MSTWinter Weather AdvisoryMSODeer Lodge, Flathead, Granite, Lake, Lincoln, Mineral and 5 more66 hr

Nearby

Wind Chill Advisories in Montana, 2024Every wind chill advisory in 2024

Sources

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