Alert archive / Montana / High Wind Warnings in 2024

High Wind Warning 26, NWS Great Falls, MT

December 6, 202412 counties in Montana

NWS Great Falls, MT issued this high wind warning at Dec 6, 2024, 12:35 AM MST for 12 counties in Montana. It took effect at Dec 6, 2024, 2:00 PM MST. It was in force for 51 hr. 60 reports came from inside the area while it was in force.

The area

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

The facts

Issued
Dec 6, 2024, 12:35 AM MST (07:35 UTC)
In effect from
Dec 6, 2024, 2:00 PM MST
Expired
Dec 8, 2024, 5:00 PM MST
In force
51 hr
Issued by
NWS Great Falls, MT

Counties Blaine County, MT, Cascade County, MT, Chouteau County, MT, Fergus County, MT, Glacier County, MT, Hill County, MT, Judith Basin County, MT, Lewis and Clark County, MT, Liberty County, MT, Pondera County, MT, Teton County, MT, Toole County, MT

The radar

The Great Falls radar (KTFX), 62 km from the middle of the area, began a volume at 07:35 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

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

What was reported inside it

TimeReportWhereRemark
Dec 6, 3:00 PM MSTNON-TSTM WND GST 552 Se Browning, MTMesonet station MTBWG Browning (MT DOT).
Dec 6, 3:00 PM MSTNON-TSTM WND GST 598 Wsw Saint Mary, MTMesonet station SNPMT Sunpoint.
Dec 6, 3:00 PM MSTNON-TSTM WND GST 6314 Wsw Saint Mary, MTMesonet station LGPVC Logan Pass (GNP).
Dec 6, 3:00 PM MSTNON-TSTM WND GST 671 Ene East Glacier Park, MTMesonet station MTBRN Two Medicine Bridge (MT DOT).
Dec 6, 3:10 PM MSTNON-TSTM WND GST 799 Ese East Glacier Park, MTMontana Mesonet site Dog Gun Lake.
Dec 6, 3:35 PM MSTNON-TSTM WND GST 5814 E Saint Mary, MTMontana Mesonet site Wetzel.
Dec 6, 3:40 PM MSTHIGH SUST WINDS 4216 Wsw Cut Bank, MTAverage wind speed of 42 mph from 1440 to 1540 local time at the Mission Lake Montana Mesonet site.
Dec 6, 4:21 PM MSTNON-TSTM WND GST 868 Se East Glacier Park, MTMesonet station DCRM8 Deep Creek RAWS.
Dec 6, 5:21 PM MSTNON-TSTM WND GST 898 Se East Glacier Park, MTMesonet station DCRM8 Deep Creek RAWS.
Dec 6, 5:45 PM MSTNON-TSTM WND GST 6414 W Bynum, MTMesonet station DELMT Dellwo (MCSCN).
Dec 6, 6:00 PM MSTNON-TSTM WND GST 608 Wsw Saint Mary, MTMesonet station SNPMT Sunpoint.
Dec 6, 7:30 PM MSTNON-TSTM WND GST 6710 Ese Whitlash, MTMontana Mesonet site Mount Lebanon.
Dec 6, 8:25 PM MSTNON-TSTM WND GST 779 Ese East Glacier Park, MTMontana Mesonet site Dog Gun Lake.
Dec 6, 9:00 PM MSTNON-TSTM WND GST 562 Se Browning, MTMesonet station MTBWG Browning (MT DOT).
Dec 6, 9:30 PM MSTNON-TSTM WND GST 623 Sw Cut Bank, MTASOS station KCTB Cut Bank Airport.
Dec 6, 10:30 PM MSTHIGH SUST WINDS 402 Se Browning, MTMesonet station MTBWG Browning (MT DOT) measured 40 mph winds averaged over the past 1hr and 45 minutes.
Dec 6, 11:00 PM MSTNON-TSTM WND GST 628 Wsw Saint Mary, MTMesonet station SNPMT Sunpoint.
Dec 6, 11:10 PM MSTNON-TSTM WND GST 6510 Ese Whitlash, MTMontana Mesonet site Mount Lebanon.
Dec 6, 11:35 PM MSTNON-TSTM WND GST 5810 Ese Whitlash, MTMontana Mesonet site Mount Lebanon.
Dec 7, 12:00 AM MSTNON-TSTM WND GST 4511 N Inverness, MTMontana Mesonet site Inverness N.
Dec 7, 12:00 AM MSTNON-TSTM WND GST 698 Wsw Saint Mary, MTMesonet station SNPMT Sunpoint.
Dec 7, 12:15 AM MSTNON-TSTM WND GST 5920 N Rudyard, MTMesonet station EW1937 Goldstone.
Dec 7, 12:35 AM MSTNON-TSTM WND GST 709 Ese East Glacier Park, MTMontana Mesonet site Dog Gun Lake.
Dec 7, 12:51 AM MSTNON-TSTM WND GST 61Babb, MTHowards Lodge.
Dec 7, 1:00 AM MSTHIGH SUST WINDS 448 Wsw Saint Mary, MTMesonet station SNPMT Sunpoint averaged a wind speed of 44 mph over the past 2 hours.
Dec 7, 1:00 AM MSTNON-TSTM WND GST 688 Wsw Saint Mary, MTMesonet station SNPMT Sunpoint.
Dec 7, 1:45 AM MSTNON-TSTM WND GST 477 Sw Havre, MTMontana Mesonet site Havre.
Dec 7, 3:02 AM MSTNON-TSTM WND GST 472 Nw Windham, MT
Dec 7, 3:15 AM MSTNON-TSTM WND GST 644 Nw Coffee Creek, MTMontana Mesonet site Coffee Creek N Agrimet.
Dec 7, 3:55 AM MSTNON-TSTM WND GST 553 Nnw Coffee Creek, MTMontana Mesonet site Coffee Creek N Hydromet.
Dec 7, 4:52 AM MSTNON-TSTM WND GST 657 Ese Hilger, MTMesonet station JPKM8 Judith Peak RAWS.
Dec 7, 5:11 AM MSTNON-TSTM WND GST 50Saint Mary, MTSt Mary RAWS.
Dec 7, 5:30 AM MSTNON-TSTM WND GST 604 Nw Coffee Creek, MTMontana Mesonet site Coffee Creek N Agrimet.
Dec 7, 7:00 AM MSTNON-TSTM WND GST 588 Wsw Saint Mary, MTMesonet station SNPMT Sunpoint.
Dec 7, 7:52 AM MSTNON-TSTM WND GST 647 Ese Hilger, MTMesonet station JPKM8 Judith Peak RAWS.
Dec 7, 10:21 AM MSTNON-TSTM WND GST 708 Se East Glacier Park, MTMesonet station DCRM8 Deep Creek RAWS.
Dec 7, 10:59 AM MSTNON-TSTM WND GST 46East Glacier Park, MTAmbient Weather Station.
Dec 7, 11:15 AM MSTNON-TSTM WND GST 592 Sse Geyser, MTMesonet station MTGYS Geyser (MT DOT).
Dec 7, 12:15 PM MSTHIGH SUST WINDS 432 Sse Geyser, MTAverage of 43 mph sustained wind between 1030 AM and 1215 PM at Mesonet station MTGYS Geyser (MT DOT).
Dec 7, 12:45 PM MSTNON-TSTM WND GST 661 Ene East Glacier Park, MTMesonet station MTBRN Two Medicine Bridge (MT DOT).
Dec 7, 12:45 PM MSTNON-TSTM WND GST 709 Ese East Glacier Park, MTMontana Mesonet site Dog Gun Lake.
Dec 7, 1:15 PM MSTNON-TSTM WND GST 721 Ene East Glacier Park, MTMesonet station MTBRN Two Medicine Bridge (MT DOT).
Dec 7, 1:21 PM MSTNON-TSTM WND GST 738 Se East Glacier Park, MTMesonet station DCRM8 Deep Creek RAWS.
Dec 7, 1:44 PM MSTNON-TSTM WND GST 6014 Sw Augusta, MTUpper Elk Creek KMTAUGUS3.
Dec 7, 2:00 PM MSTHIGH SUST WINDS 501 Ene East Glacier Park, MTAverage wind speed of 50.4 mph from 1300 to 1400 local time.
Dec 7, 2:09 PM MSTNON-TSTM WND GST 6214 Wsw Augusta, MTGoss Ranch KMTAUGUS4.
Dec 7, 2:27 PM MSTNON-TSTM WND GST 56East Glacier Park, MTAmbient Weather Station.
Dec 7, 2:45 PM MSTNON-TSTM WND GST 6614 W Bynum, MTMesonet station DELMT Dellwo (MCSCN).
Dec 7, 2:54 PM MSTNON-TSTM WND GST 6614 Wsw Augusta, MTGoss Ranch KMTAUGUS4.
Dec 7, 3:15 PM MSTNON-TSTM WND GST 6814 W Bynum, MTMesonet station DELMT Dellwo (MCSCN).
Dec 7, 3:50 PM MSTNON-TSTM WND GST 4914 E Saint Mary, MT
Dec 7, 4:00 PM MSTNON-TSTM WND GST 555 Se Browning, MTMesonet station SHBM Browning.
Dec 7, 4:00 PM MSTNON-TSTM WND GST 682 Se Browning, MTMesonet station MTBWG Browning (MT DOT).
Dec 7, 5:30 PM MSTHIGH SUST WINDS 512 Se Browning, MTAverage wind speed of 51.3 mph from 1530 to 1730 local time, with a max 1 hour average wind speed of 52.2 mph from 1630 to 1730.
Dec 7, 5:55 PM MSTNON-TSTM WND GST 589 Sw Dupuyer, MTMesonet station DVI01084 Dupuyer.
Dec 7, 6:30 PM MSTNON-TSTM WND GST 6914 W Bynum, MTMesonet station DELMT Dellwo (MCSCN).
Dec 7, 6:35 PM MSTNON-TSTM WND GST 486 Wnw Sunburst, MTMontana Mesonet site Sunburst NW.
Dec 7, 6:39 PM MSTNON-TSTM WND GST 6314 Sw Augusta, MTUpper Elk Creek KMTAUGUS3.
Dec 7, 6:45 PM MSTHIGH SUST WINDS 4614 W Bynum, MTAverage sustained wind of 46 mph at Mesonet station DELMT Dellwo (MCSCN) from 245 PM until 645 PM.
Dec 7, 7:00 PM MSTNON-TSTM WND GST 527 Ne Choteau, MTMontana Mesonet site Choteau NE.

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 00:00Z, 7.6 hours before the alert went out and 67 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, Great_falls, MT at 00:00Z on 2024-12-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Great_falls, MT at 00:00Z on 2024-12-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 88 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
3027 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
88 m²/s²
0-3 km storm-relative helicity
123 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

424 
WWUS75 KTFX 060735
NPWTFX

URGENT - WEATHER MESSAGE
National Weather Service Great Falls MT
1235 AM MST Fri Dec 6 2024

MTZ301>303-307-308-062245-
/O.UPG.KTFX.HW.A.0021.241207T0000Z-241208T1800Z/
/O.NEW.KTFX.HW.W.0026.241206T2100Z-241208T2100Z/
East Glacier Park Region-Northern High Plains-Eastern Glacier,
Western Toole, and Central Pondera-Southern Rocky Mountain Front-
Southern High Plains-
Including the following locations: Ethridge, Marias Pass,
Pendroy, Rogers Pass, Bynum, Choteau, East Glacier Park, Heart
Butte, Logan Pass, Kiowa, Dupuyer, Cut Bank, Browning, Babb,
Saint Mary, and Santa Rita
1235 AM MST Fri Dec 6 2024

...HIGH WIND WARNING IN EFFECT FROM 2 PM THIS AFTERNOON TO 2 PM MST 
SUNDAY...

* WHAT...West winds 30 to 50 mph with gusts up to 85 mph expected.

* WHERE...The Rocky Mountain Front and adjacent foothills and 
  plains, and Eastern Glacier, Western Toole, and Central Pondera 
  Counties.

* WHEN...From 2 PM this afternoon to 2 PM MST Sunday.

* IMPACTS...Damaging winds may blow down trees and power lines. 
  Power outages are possible. Travel could be very difficult, 
  especially for high profile vehicles.

* ADDITIONAL DETAILS...Winds will briefly weaken during the day on 
  Saturday and then increase again Saturday afternoon/evening. The 
  strongest winds are expected to occur Saturday night.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates.

&&

$$

MTZ312>314-318-062245-
/O.CON.KTFX.HW.A.0021.241208T0000Z-241209T0000Z/
Cascade County below 5000ft-Judith Basin County and Judith Gap-
Fergus County below 4500ft-Snowy and Judith Mountains-
Including the following locations: Windham, Hobson, Moccasin,
Raynesford, Great Falls, Lewistown, Hilger, Benchland, Geyser,
and Stanford
1235 AM MST Fri Dec 6 2024

...HIGH WIND WATCH REMAINS IN EFFECT FROM SATURDAY AFTERNOON THROUGH 
SUNDAY AFTERNOON...

* WHAT...West winds 25 to 35 mph with gusts up to 60 mph possible.

* WHERE...Snowy and Judith Mountains, Cascade County below 5000ft, 
  Fergus County below 4500ft, and Judith Basin County and Judith Gap.

* WHEN...From Saturday afternoon through Sunday afternoon.

* IMPACTS...High winds may move loose debris, damage property and 
  cause power outages. Travel could be difficult, especially for 
  high profile vehicles.

* ADDITIONAL DETAILS...The strongest winds are expected to occur 
  Saturday night.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates.

Remember, a High Wind Watch means that there is at least a 50% 
chance of 40 mph sustained winds or 58 mph wind gusts occurring 
during the watch period.

&&

$$

IG
7 follow-up statements
664 
WWUS75 KTFX 062015
NPWTFX

URGENT - WEATHER MESSAGE
National Weather Service Great Falls MT
115 PM MST Fri Dec 6 2024

MTZ313-314-318-071200-
/O.UPG.KTFX.HW.A.0021.241208T0000Z-241209T0000Z/
/O.EXB.KTFX.HW.W.0026.241208T0000Z-241209T0000Z/
Judith Basin County and Judith Gap-Fergus County below 4500ft-
Snowy and Judith Mountains-
Including the following locations: Windham, Lewistown, Hilger,
Geyser, Benchland, Moccasin, Raynesford, Hobson, and Stanford
115 PM MST Fri Dec 6 2024

...HIGH WIND WARNING IN EFFECT FROM 5 PM SATURDAY TO 5 PM MST 
SUNDAY...

* WHAT...West winds 30 to 40 mph with gusts up to 65 mph expected.

* WHERE...Snowy and Judith Mountains, Fergus County below 4500ft, 
  and Judith Basin County and Judith Gap.

* WHEN...From 5 PM Saturday to 5 PM MST Sunday.

* IMPACTS...High winds may move loose debris, damage property and 
  cause power outages. Travel could be difficult, especially for 
  high profile vehicles.

* ADDITIONAL DETAILS...The strongest winds are expected to occur 
  Saturday night.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People are urged to secure loose objects that could be blown around 
or damaged by the wind.

&&

$$

MTZ301>303-307-308-071200-
/O.CON.KTFX.HW.W.0026.241206T2100Z-241208T2100Z/
East Glacier Park Region-Northern High Plains-Eastern Glacier,
Western Toole, and Central Pondera-Southern Rocky Mountain Front-
Southern High Plains-
Including the following locations: Browning, Heart Butte, Marias
Pass, Babb, Rogers Pass, Ethridge, Saint Mary, Santa Rita,
Dupuyer, Choteau, Pendroy, East Glacier Park, Cut Bank, Kiowa,
Bynum, and Logan Pass
115 PM MST Fri Dec 6 2024

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 2 PM MST SUNDAY...

* WHAT...West winds 30 to 50 mph with gusts up to 85 mph expected.

* WHERE...The Rocky Mountain Front and adjacent foothills and 
  plains, and Eastern Glacier, Western Toole, and Central Pondera 
  Counties.

* WHEN...Until 2 PM MST Sunday.

* IMPACTS...Damaging winds may blow down trees and power lines. 
  Power outages are possible. Travel could be very difficult, 
  especially for high profile vehicles.

* ADDITIONAL DETAILS...The strongest winds are expected to occur 
  Saturday night.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates.

&&

$$

MTZ312-071200-
/O.CON.KTFX.HW.A.0021.241208T0000Z-241209T0000Z/
Cascade County below 5000ft-
Including the following locations: Great Falls
115 PM MST Fri Dec 6 2024

...HIGH WIND WATCH REMAINS IN EFFECT FROM SATURDAY AFTERNOON THROUGH 
SUNDAY AFTERNOON...

* WHAT...West winds 25 to 35 mph with gusts up to 60 mph expected.

* WHERE...Cascade County below 5000ft.

* WHEN...From Saturday afternoon through Sunday afternoon.

* IMPACTS...High winds may move loose debris, damage property and 
  cause power outages. Travel could be difficult, especially for 
  high profile vehicles.

* ADDITIONAL DETAILS...The strongest winds are expected to occur 
  Saturday night.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates.

&&

$$

Glinskas
098 
WWUS75 KTFX 070631
NPWTFX

URGENT - WEATHER MESSAGE
National Weather Service Great Falls MT
1131 PM MST Fri Dec 6 2024

MTZ312-080000-
/O.UPG.KTFX.HW.A.0021.241208T0000Z-241209T0000Z/
/O.EXA.KTFX.HW.W.0026.241208T0000Z-241209T0000Z/
Cascade County below 5000ft-
Including the following locations: Great Falls
1131 PM MST Fri Dec 6 2024

...HIGH WIND WARNING IN EFFECT FROM 5 PM SATURDAY TO 5 PM MST 
SUNDAY...

* WHAT...Southwest winds 30 to 40 mph, with gusts up to 70 mph 
  expected.

* WHERE...Cascade County below 5000ft.

* WHEN...From 5 PM Saturday to 5 PM MST Sunday.

* IMPACTS...High winds may move loose debris, damage property and 
  cause power outages. Travel will be difficult, especially for high 
  profile vehicles.

* ADDITIONAL DETAILS...The strongest winds are expected to occur 
  Saturday night.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People are urged to secure loose objects that could be blown around 
or damaged by the wind.

Remember, a High Wind Warning means that there is at least an 80% 
chance of 40 mph sustained winds or 58 mph wind gusts occurring 
during the warning period.

&&

$$

MTZ304-080000-
/O.EXA.KTFX.HW.W.0026.000000T0000Z-241208T2100Z/
Eastern Toole and Liberty-
Including the following locations: Whitlash, Galata, Chester,
Shelby, Devon, Joplin, and Lothair
1131 PM MST Fri Dec 6 2024

...HIGH WIND WARNING IN EFFECT UNTIL 2 PM MST SUNDAY...

* WHAT...West winds 30 to 40 mph, with gusts up to 70 mph.

* WHERE...Eastern Toole and Liberty Counties.

* WHEN...Until 2 PM MST Sunday.

* IMPACTS...High winds may move loose debris, damage property and 
  cause power outages. Travel will be difficult, especially for high 
  profile vehicles.

* ADDITIONAL DETAILS...The strongest winds are expected to occur 
  Saturday night.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People are urged to secure loose objects that could be blown around 
or damaged by the wind.

Remember, a High Wind Warning means that there is at least an 80% 
chance of 40 mph sustained winds or 58 mph wind gusts occurring 
during the warning period.

&&

$$

MTZ311-080000-
/O.EXA.KTFX.HW.W.0026.241208T0000Z-241209T0000Z/
Bears Paw Mountains and Southern Blaine-
Including the following locations: Rocky Boy
1131 PM MST Fri Dec 6 2024

...HIGH WIND WARNING IN EFFECT FROM 5 PM SATURDAY TO 5 PM MST 
SUNDAY...

* WHAT...West winds 30 to 40 mph, with gusts up to 70 mph expected.

* WHERE...Bears Paw Mountains and Southern Blaine.

* WHEN...From 5 PM Saturday to 5 PM MST Sunday.

* IMPACTS...High winds may move loose debris, damage property and 
  cause power outages. Travel will be difficult, especially for high 
  profile vehicles.

* ADDITIONAL DETAILS...The strongest winds are expected to occur 
  Saturday night.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People are urged to secure loose objects that could be blown around 
or damaged by the wind.

Remember, a High Wind Warning means that there is at least an 80% 
chance of 40 mph sustained winds or 58 mph wind gusts occurring 
during the warning period.

&&

$$

MTZ301>303-307-308-080000-
/O.CON.KTFX.HW.W.0026.000000T0000Z-241208T2100Z/
East Glacier Park Region-Northern High Plains-Eastern Glacier,
Western Toole, and Central Pondera-Southern Rocky Mountain Front-
Southern High Plains-
Including the following locations: Kiowa, Saint Mary, Babb, Logan
Pass, Cut Bank, Ethridge, East Glacier Park, Heart Butte, Bynum,
Pendroy, Choteau, Santa Rita, Rogers Pass, Marias Pass, Dupuyer,
and Browning
1131 PM MST Fri Dec 6 2024

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 2 PM MST SUNDAY...

* WHAT...Southwest winds 40 to 50 mph, with gusts up to 90 mph.

* WHERE...The Rocky Mountain Front and adjacent foothills and 
  plains, and Eastern Glacier, Western Toole, and Central Pondera 
  Counties.

* WHEN...Until 2 PM MST Sunday.

* IMPACTS...Damaging winds may blow down trees and power lines. 
  Power outages are possible. Travel will be very difficult, 
  especially for high profile vehicles.

* ADDITIONAL DETAILS...The strongest winds are expected to occur 
  Saturday night.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People are urged to secure loose objects that could be blown around 
or damaged by the wind.

Remember, a High Wind Warning means that there is at least an 80% 
chance of 40 mph sustained winds or 58 mph wind gusts occurring 
during the warning period.

&&

$$

MTZ313-314-318-080000-
/O.CON.KTFX.HW.W.0026.241208T0000Z-241209T0000Z/
Judith Basin County and Judith Gap-Fergus County below 4500ft-
Snowy and Judith Mountains-
Including the following locations: Hilger, Hobson, Raynesford,
Benchland, Geyser, Windham, Lewistown, Stanford, and Moccasin
1131 PM MST Fri Dec 6 2024

...HIGH WIND WARNING REMAINS IN EFFECT FROM 5 PM SATURDAY TO 5 PM 
MST SUNDAY...

* WHAT...West winds 30 to 40 mph, with gusts up to 70 mph expected.

* WHERE...Snowy and Judith Mountains, Fergus County below 4500ft, 
  and Judith Basin County and Judith Gap.

* WHEN...From 5 PM Saturday to 5 PM MST Sunday.

* IMPACTS...High winds may move loose debris, damage property and 
  cause power outages. Travel will be difficult, especially for high 
  profile vehicles.

* ADDITIONAL DETAILS...The strongest winds are expected to occur 
  Saturday night.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People are urged to secure loose objects that could be blown around 
or damaged by the wind.

Remember, a High Wind Warning means that there is at least an 80% 
chance of 40 mph sustained winds or 58 mph wind gusts occurring 
during the warning period.

&&

$$

Moldan
260 
WWUS75 KTFX 071836
NPWTFX

URGENT - WEATHER MESSAGE
National Weather Service Great Falls MT
1136 AM MST Sat Dec 7 2024

MTZ311-313-314-318-080945-
/O.EXT.KTFX.HW.W.0026.241207T1836Z-241209T0000Z/
Bears Paw Mountains and Southern Blaine-Judith Basin County and
Judith Gap-Fergus County below 4500ft-Snowy and Judith Mountains-
Including the following locations: Hobson, Raynesford, Rocky Boy,
Lewistown, Windham, Stanford, Benchland, Moccasin, Hilger, and
Geyser
1136 AM MST Sat Dec 7 2024

...HIGH WIND WARNING NOW IN EFFECT UNTIL 5 PM MST SUNDAY...

* WHAT...West winds 30 to 40 mph with gusts up to 65 mph.

* WHERE...Snowy and Judith Mountains, Bears Paw Mountains and 
  Southern Blaine, Fergus County below 4500ft, and Judith Basin 
  County and Judith Gap.

* WHEN...Until 5 PM MST Sunday.

* IMPACTS...High winds may move loose debris, damage property and 
  cause power outages. Travel could be difficult, especially for 
  high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People are urged to secure loose objects that could be blown around 
or damaged by the wind.

Remember, a High Wind Warning means that there is at least an 80% 
chance of 40 mph sustained winds or 58 mph wind gusts occurring 
during the warning period.

&&

$$

MTZ301>304-307-308-080945-
/O.CON.KTFX.HW.W.0026.000000T0000Z-241208T2100Z/
East Glacier Park Region-Northern High Plains-Eastern Glacier,
Western Toole, and Central Pondera-Eastern Toole and Liberty-
Southern Rocky Mountain Front-Southern High Plains-
Including the following locations: Bynum, Lothair, Chester,
Devon, Browning, Rogers Pass, Logan Pass, Joplin, Shelby,
Dupuyer, Kiowa, Pendroy, Cut Bank, Choteau, Galata, East Glacier
Park, Babb, Saint Mary, Whitlash, Marias Pass, Ethridge, Santa
Rita, and Heart Butte
1136 AM MST Sat Dec 7 2024

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 2 PM MST SUNDAY...

* WHAT...West winds 35 to 45 mph with gusts up to 80 mph.

* WHERE...The Rocky Mountain Front and adjacent foothills and 
  plains, Eastern Glacier, Western Toole, and Central Pondera 
  Counties, and Eastern Toole and Liberty Counties.

* WHEN...Until 2 PM MST Sunday.

* IMPACTS...High winds may move loose debris, damage property and 
  cause power outages. Travel could be difficult, especially for 
  high profile vehicles. Damaging winds will blow down trees and 
  power lines. Power outages are expected. Travel will be very 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People are urged to secure loose objects that could be blown around 
or damaged by the wind.

Remember, a High Wind Warning means that there is at least an 80% 
chance of 40 mph sustained winds or 58 mph wind gusts occurring 
during the warning period.

&&

$$

MTZ312-080945-
/O.CON.KTFX.HW.W.0026.241208T0000Z-241209T0000Z/
Cascade County below 5000ft-
Including the following locations: Great Falls
1136 AM MST Sat Dec 7 2024

...HIGH WIND WARNING REMAINS IN EFFECT FROM 5 PM THIS AFTERNOON TO 5 
PM MST SUNDAY...

* WHAT...Southwest winds 30 to 40 mph, with gusts up to 70 mph 
  expected.

* WHERE...Cascade County below 5000ft.

* WHEN...From 5 PM this afternoon to 5 PM MST Sunday.

* IMPACTS...High winds may move loose debris, damage property and 
  cause power outages. Travel will be difficult, especially for high 
  profile vehicles.

* ADDITIONAL DETAILS...The strongest winds are expected to occur 
  overnight.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People are urged to secure loose objects that could be blown around 
or damaged by the wind.

Remember, a High Wind Warning means that there is at least an 80% 
chance of 40 mph sustained winds or 58 mph wind gusts occurring 
during the warning period.

&&

$$

Ludwig
867 
WWUS75 KTFX 072347
NPWTFX

URGENT - WEATHER MESSAGE
National Weather Service Great Falls MT
447 PM MST Sat Dec 7 2024

MTZ301-302-081200-
/O.CON.KTFX.HW.W.0026.000000T0000Z-241208T2100Z/
East Glacier Park Region-Northern High Plains-
Including the following locations: Saint Mary, Marias Pass, Babb,
East Glacier Park, Logan Pass, Kiowa, Dupuyer, Browning, and
Heart Butte
447 PM MST Sat Dec 7 2024

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 2 PM MST SUNDAY...

* WHAT...West winds 35 to 45 mph, with gusts up to 75 mph.

* WHERE...Eastern Glacier National Park and adjacent foothills and 
  plains.

* WHEN...Until 2 PM MST Sunday.

* IMPACTS...Travel could be difficult, especially for high profile 
  vehicles.

* ADDITIONAL DETAILS...Wind gusts could approach 85 mph around Dog 
  Gun Lake.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People are urged to secure loose objects that could be blown around 
or damaged by the wind.

Remember, a High Wind Warning means that there is at least an 80% 
chance of 40 mph sustained winds or 58 mph wind gusts occurring 
during the warning period.

&&

$$

MTZ303-304-081200-
/O.CON.KTFX.HW.W.0026.000000T0000Z-241208T2100Z/
Eastern Glacier, Western Toole, and Central Pondera-Eastern Toole
and Liberty-
Including the following locations: Shelby, Santa Rita, Lothair,
Whitlash, Ethridge, Devon, Chester, Galata, Cut Bank, and Joplin
447 PM MST Sat Dec 7 2024

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 2 PM MST SUNDAY...

* WHAT...West winds 30 to 40 mph, with gusts up to 65 mph.

* WHERE...Eastern Glacier, Western Toole, and Central Pondera 
  Counties, and Eastern Toole and Liberty Counties.

* WHEN...Until 2 PM MST Sunday.

* IMPACTS...Travel could be difficult, especially for high profile 
  vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People are urged to secure loose objects that could be blown around 
or damaged by the wind.

&&

$$

MTZ307-308-081200-
/O.CON.KTFX.HW.W.0026.000000T0000Z-241208T2100Z/
Southern Rocky Mountain Front-Southern High Plains-
Including the following locations: Pendroy, Rogers Pass, Bynum,
and Choteau
447 PM MST Sat Dec 7 2024

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 2 PM MST SUNDAY...

* WHAT...West winds 35 to 45 mph with gusts up to 80 mph.

* WHERE...Southern Rocky Mountain Front and adjacent foothills and 
  plains.

* WHEN...Until 2 PM MST Sunday.

* IMPACTS...Travel could be difficult, especially for high profile 
  vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People are urged to secure loose objects that could be blown around 
or damaged by the wind.

&&

$$

MTZ311-313-314-318-081200-
/O.CON.KTFX.HW.W.0026.000000T0000Z-241209T0000Z/
Bears Paw Mountains and Southern Blaine-Judith Basin County and
Judith Gap-Fergus County below 4500ft-Snowy and Judith Mountains-
Including the following locations: Lewistown, Stanford,
Raynesford, Hobson, Rocky Boy, Geyser, Hilger, Moccasin, Windham,
and Benchland
447 PM MST Sat Dec 7 2024

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 5 PM MST SUNDAY...

* WHAT...West winds 30 to 40 mph, with gusts up to 60 mph.

* WHERE...Snowy and Judith Mountains, Bears Paw Mountains and 
  Southern Blaine, Fergus County below 4500ft, and Judith Basin 
  County and Judith Gap.

* WHEN...Until 5 PM MST Sunday.

* IMPACTS...Travel could be difficult, especially for high profile 
  vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People are urged to secure loose objects that could be blown around 
or damaged by the wind.

Remember, a High Wind Warning means that there is at least an 80% 
chance of 40 mph sustained winds or 58 mph wind gusts occurring 
during the warning period.

&&

$$

MTZ312-081200-
/O.CON.KTFX.HW.W.0026.241208T0000Z-241209T0000Z/
Cascade County below 5000ft-
Including the following locations: Great Falls
447 PM MST Sat Dec 7 2024

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 5 PM MST SUNDAY...

* WHAT...Southwest winds 30 to 40 mph, with gusts up to 60 mph 
  expected.

* WHERE...Cascade County below 5000ft.

* WHEN...Until 5 PM MST Sunday.

* IMPACTS...Travel could be difficult, especially for high profile 
  vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People are urged to secure loose objects that could be blown around 
or damaged by the wind.

Remember, a High Wind Warning means that there is at least an 80% 
chance of 40 mph sustained winds or 58 mph wind gusts occurring 
during the warning period.

&&

$$

Brusda
226 
WWUS75 KTFX 080744
NPWTFX

URGENT - WEATHER MESSAGE
National Weather Service Great Falls MT
1244 AM MST Sun Dec 8 2024

MTZ301-302-082100-
/O.CON.KTFX.HW.W.0026.000000T0000Z-241208T2100Z/
East Glacier Park Region-Northern High Plains-
Including the following locations: Browning, East Glacier Park,
Marias Pass, Heart Butte, Babb, Dupuyer, Kiowa, Saint Mary, and
Logan Pass
1244 AM MST Sun Dec 8 2024

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 2 PM MST THIS 
AFTERNOON...

* WHAT...West winds 35 to 45 mph, with gusts up to 75 mph.

* WHERE...Eastern Glacier National Park and adjacent foothills and 
  plains.

* WHEN...Until 2 PM MST this afternoon.

* IMPACTS...Travel could be difficult, especially for high profile 
  vehicles.

* ADDITIONAL DETAILS...Wind gusts could approach 85 mph around Dog 
  Gun Lake.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People are urged to secure loose objects that could be blown around 
or damaged by the wind.

Remember, a High Wind Warning means that there is at least an 80% 
chance of 40 mph sustained winds or 58 mph wind gusts occurring 
during the warning period.

&&

$$

MTZ303-304-082100-
/O.CON.KTFX.HW.W.0026.000000T0000Z-241208T2100Z/
Eastern Glacier, Western Toole, and Central Pondera-Eastern Toole
and Liberty-
Including the following locations: Devon, Chester, Galata,
Ethridge, Cut Bank, Shelby, Lothair, Whitlash, Santa Rita, and
Joplin
1244 AM MST Sun Dec 8 2024

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 2 PM MST THIS 
AFTERNOON...

* WHAT...West winds 30 to 40 mph, with gusts up to 65 mph.

* WHERE...Eastern Glacier, Western Toole, and Central Pondera 
  Counties, and Eastern Toole and Liberty Counties.

* WHEN...Until 2 PM MST this afternoon.

* IMPACTS...Travel could be difficult, especially for high profile 
  vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People are urged to secure loose objects that could be blown around 
or damaged by the wind.

Remember, a High Wind Warning means that there is at least an 80% 
chance of 40 mph sustained winds or 58 mph wind gusts occurring 
during the warning period.

&&

$$

MTZ307-308-082100-
/O.CON.KTFX.HW.W.0026.000000T0000Z-241208T2100Z/
Southern Rocky Mountain Front-Southern High Plains-
Including the following locations: Choteau, Pendroy, Bynum, and
Rogers Pass
1244 AM MST Sun Dec 8 2024

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 2 PM MST THIS 
AFTERNOON...

* WHAT...West winds 35 to 45 mph with gusts up to 80 mph.

* WHERE...Southern Rocky Mountain Front and adjacent foothills and 
  plains.

* WHEN...Until 2 PM MST this afternoon.

* IMPACTS...Travel could be difficult, especially for high profile 
  vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People are urged to secure loose objects that could be blown around 
or damaged by the wind.

Remember, a High Wind Warning means that there is at least an 80% 
chance of 40 mph sustained winds or 58 mph wind gusts occurring 
during the warning period.

&&

$$

MTZ311-313-314-318-082245-
/O.CON.KTFX.HW.W.0026.000000T0000Z-241209T0000Z/
Bears Paw Mountains and Southern Blaine-Judith Basin County and
Judith Gap-Fergus County below 4500ft-Snowy and Judith Mountains-
Including the following locations: Geyser, Rocky Boy, Raynesford,
Stanford, Windham, Moccasin, Benchland, Hobson, Lewistown, and
Hilger
1244 AM MST Sun Dec 8 2024

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS 
AFTERNOON...

* WHAT...West winds 30 to 40 mph, with gusts up to 60 mph.

* WHERE...Snowy and Judith Mountains, Bears Paw Mountains and 
  Southern Blaine, Fergus County below 4500ft, and Judith Basin 
  County and Judith Gap.

* WHEN...Until 5 PM MST this afternoon.

* IMPACTS...Travel could be difficult, especially for high profile 
  vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People are urged to secure loose objects that could be blown around 
or damaged by the wind.

&&

$$

MTZ312-082245-
/O.CON.KTFX.HW.W.0026.000000T0000Z-241209T0000Z/
Cascade County below 5000ft-
Including the following locations: Great Falls
1244 AM MST Sun Dec 8 2024

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS 
AFTERNOON...

* WHAT...Southwest winds 30 to 40 mph, with gusts up to 60 mph 
  expected.

* WHERE...Cascade County below 5000ft.

* WHEN...Until 5 PM MST this afternoon.

* IMPACTS...High winds may move loose debris, damage property and 
  cause power outages. Travel will be difficult, especially for high 
  profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People are urged to secure loose objects that could be blown around 
or damaged by the wind.

Remember, a High Wind Warning means that there is at least an 80% 
chance of 40 mph sustained winds or 58 mph wind gusts occurring 
during the warning period.

&&

$$

IG
304 
WWUS75 KTFX 082025
NPWTFX

URGENT - WEATHER MESSAGE
National Weather Service Great Falls MT
125 PM MST Sun Dec 8 2024

MTZ301>304-307-308-082130-
/O.CAN.KTFX.HW.W.0026.000000T0000Z-241208T2100Z/
East Glacier Park Region-Northern High Plains-Eastern Glacier,
Western Toole, and Central Pondera-Eastern Toole and Liberty-
Southern Rocky Mountain Front-Southern High Plains-
Including the following locations: Santa Rita, Rogers Pass,
Bynum, Ethridge, Joplin, Choteau, East Glacier Park, Browning,
Pendroy, Marias Pass, Logan Pass, Cut Bank, Dupuyer, Devon,
Chester, Galata, Shelby, Heart Butte, Kiowa, Saint Mary, Babb,
Whitlash, and Lothair
125 PM MST Sun Dec 8 2024

...HIGH WIND WARNING IS CANCELLED...

Gusty winds will continue through the rest of the day but the main 
threat has ended.

$$

MTZ312-082130-
/O.CAN.KTFX.HW.W.0026.000000T0000Z-241209T0000Z/
Cascade County below 5000ft-
Including the following locations: Great Falls
125 PM MST Sun Dec 8 2024

...HIGH WIND WARNING IS CANCELLED...

Gusty winds will continue through the rest of the day but the main 
threat has ended.

$$

MTZ311-313-314-318-090000-
/O.CON.KTFX.HW.W.0026.000000T0000Z-241209T0000Z/
Bears Paw Mountains and Southern Blaine-Judith Basin County and
Judith Gap-Fergus County below 4500ft-Snowy and Judith Mountains-
Including the following locations: Geyser, Benchland, Lewistown,
Raynesford, Windham, Moccasin, Hobson, Hilger, Rocky Boy, and
Stanford
125 PM MST Sun Dec 8 2024

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS 
AFTERNOON...

* WHAT...West winds 30 to 40 mph, with gusts up to 60 mph.

* WHERE...Snowy and Judith Mountains, Bears Paw Mountains and 
  Southern Blaine, Fergus County below 4500ft, and Judith Basin 
  County and Judith Gap.

* WHEN...Until 5 PM MST this afternoon.

* IMPACTS...Travel could be difficult, especially for high profile 
  vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People are urged to secure loose objects that could be blown around 
or damaged by the wind.

&&

$$

Glinskas
603 
WWUS75 KTFX 082348
NPWTFX

URGENT - WEATHER MESSAGE
National Weather Service Great Falls MT
448 PM MST Sun Dec 8 2024

MTZ311-313-314-318-090100-
/O.EXP.KTFX.HW.W.0026.000000T0000Z-241209T0000Z/
Bears Paw Mountains and Southern Blaine-Judith Basin County and
Judith Gap-Fergus County below 4500ft-Snowy and Judith Mountains-
Including the following locations: Geyser, Moccasin, Rocky Boy,
Stanford, Benchland, Hilger, Hobson, Lewistown, Raynesford, and
Windham
448 PM MST Sun Dec 8 2024

...HIGH WIND WARNING WILL EXPIRE AT 5 PM MST THIS AFTERNOON...

The threat for high winds has ended.

$$

Wilson

What forecasters said that day

The local office's own words before this high wind warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Great Falls, MT wrote its last area forecast discussion before this high wind warning went out at Dec 5, 9:14 PM MST, 3 hours 21 minutes earlier. Its key messages:

  • Increasingly windy Friday through Sunday, with isolated gusts over 90 mph possible along the immediate Rocky Mountain Front
  • Cooler air arrives Sunday night, along with a few snow showers
  • Westerly upper level flow sets up next week, allowing for a few chances for higher elevation snowfall
Area forecast discussion, Dec 5, 9:14 PM MST, 3 hours 21 minutes before
Area Forecast Discussion
National Weather Service Great Falls MT
914 PM MST Thu Dec 5 2024

Aviation Section Updated.

.KEY MESSAGES...

 - Increasingly windy Friday through Sunday, with isolated gusts
   over 90 mph possible along the immediate Rocky Mountain Front
 - Cooler air arrives Sunday night, along with a few snow showers
 - Westerly upper level flow sets up next week, allowing for a few
   chances for higher elevation snowfall

&&

.UPDATE...
/Issued 846 PM MST Thu Dec 5 2024/

Satellite imagery shows clear skies across north-central and
southwest MT with some thin high clouds currently moving through
SE BC set to move across the area later tonight as a subtle
disturbance moves over the upper level ridge centered across the
interior western US. There is still a wide range in temperatures
across north-central MT, ranging from the single digits and teens
at lower elevations (<3000 ft) in Liberty, Hill and Blaine
counties to the mid 40s across the higher plains and foothills
adjacent to the Rocky Mtn Front and Little Belts. Made some minor
adjustments to minimum temperatures in these areas in line with
trends this evening with no significant updates to the forecast
needed otherwise this evening. Hoenisch

&&

.DISCUSSION...
/Issued 215 PM MST Thu Dec 5 2024/

 - Meteorological Overview:

Upper level ridging over the area today and Friday will break
down Saturday and Sunday as a strong upper level trough begins to
push into the area. As this ridge breaks down, strong upper level
winds will combine with an increasingly strong pressure gradient
across the Rocky Mountain Front to bring strong, gusty winds to a
large portion of the area. Current NBM data suggests that there is
at least a 50% chance for wind gusts over 60 mph for most of the
usually windier locations along the Rocky Mountain Front and the
North Slopes of the Little Belt and Snowy Mountains, with wind
gusts in excess of 90 mph possible in some of the windier
locations along the Rocky Mountain Front.

As the axis of the upper level trough pushes through on Sunday, a
surface cold front will push through the area, bringing in a
colder air mass along with a few areas of snow to areas on the
plains and some of the higher elevations in Central and
Southwestern Montana, particularly the Highwood and Little Belt
Mountains. In the wake of this trough, our upper level flow will
become more westerly, allowing for a bit of a cooler and more
active weather pattern to set up for next week. Ludwig

 - Forecast Confidence & Scenarios:

Winds Friday into Sunday:

Multiple periods of gusty to strong winds will exist Friday into
Sunday, mostly across the plains. The first periods looks to be
Friday evening through early Saturday morning along the Rocky
Mountain Front and adjacent plains. The chance for sustained winds
of 50 mph and gusts of 75 mph in the Browning area is around 50%
during this timeframe. After a brief lull Saturday morning,
another period of strong winds looks to develop Saturday afternoon
and most notably Saturday evening along the Rocky Mountain Front.
The chance for a 70 mph gust in Cut Bank Saturday evening is
around 55%.

Areas further southeast along the MT-200 corridor in Cascade and
Judith Basin counties have around a 50-60% chance for a 60 mph
gust Saturday afternoon into Sunday. Given that the probabilities
for these winds has reached the 50% threshold, I have elected to
expand the High Wind Watch to these areas.

Worth noting is that as this system pulls away Sunday, the chance
for a 60 mph gust in Judith Basin and eastern portions of Fergus
county is around 50%.

Mountain Snow:

Snow will develop from northwest to southeast across the region
Saturday into Monday. Areas most favored for 6" + of snow are
along the Rocky Mountain Front (Around 70% chance at Marias Pass),
and across Central Montana ranges (80% chance at Kings Hill
Pass). -AM/Ludwig

&&

.AVIATION...
05/18Z TAF Period

VFR conditions prevail across north-central and southwest MT
through the TAF period with primarily high clouds increasing
across the region on Friday. Surface winds from the west to
southwest persist across the plains tonight and increase on
Friday with gusts in excess of 35kts likely (60%) at KCTB after
18z. Faster westerly flow developing over the Rockies late Friday
will bring an increased risk for mountain wave turbulence and
potential for some local low level wind shear going into Friday
night. Hoenisch

Refer to weather.gov/zlc for more detailed regional aviation
weather and hazard information.

&&

.PRELIMINARY POINT TEMPS/POPS...
GTF  32  53  40  57 /   0   0  10  10
CTB  28  41  34  48 /   0   0   0  10
HLN  28  50  31  53 /   0   0   0  10
BZN  17  48  23  50 /   0   0   0   0
WYS   7  38   8  34 /   0   0   0  10
DLN  21  47  25  46 /   0   0   0   0
HVR  15  40  29  51 /   0   0  10  10
LWT  27  53  35  57 /   0   0   0  10

&&

.TFX WATCHES/WARNINGS/ADVISORIES...
High Wind Watch from Friday afternoon through Sunday morning for
East Glacier Park Region-Eastern Glacier, Western Toole, and
Central Pondera-Northern High Plains-Southern High Plains-
Southern Rocky Mountain Front.

High Wind Watch from Saturday afternoon through Sunday afternoon
for Cascade County below 5000ft-Fergus County below 4500ft-
Judith Basin County and Judith Gap-Snowy and Judith Mountains.

&&

http://www.weather.gov/greatfalls

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 6, 1:08 PM MSTWinter Weather AdvisoryTFXBeaverhead, Cascade, Chouteau, Fergus, Gallatin, Glacier and 6 more3 days

Nearby

High Wind Warnings in Montana, 2024Every high wind warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.