Alert archive / Montana / High Wind Warnings in 2026

High Wind Warning 20, NWS Great Falls, MT

April 5, 202618 counties in Montana

NWS Great Falls, MT issued this high wind warning at Apr 5, 2026, 11:56 PM MDT for 18 counties in Montana. It took effect at Apr 7, 2026, 3:00 AM MDT. It was in force for 32 hr. 49 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
Apr 5, 2026, 11:56 PM MDT (05:56 UTC)
In effect from
Apr 7, 2026, 3:00 AM MDT
Expired
Apr 8, 2026, 11:21 AM MDT
In force
32 hr
Issued by
NWS Great Falls, MT

Counties Beaverhead County, MT, Blaine County, MT, Broadwater County, MT, Cascade County, MT, Chouteau County, MT, Fergus County, MT, Gallatin County, MT, Glacier County, MT, Hill County, MT, Jefferson County, MT, Judith Basin County, MT, Lewis and Clark County, MT, Liberty County, MT, Madison County, MT, Meagher County, MT, Pondera County, MT, Teton County, MT, Toole County, MT

The radar

The Great Falls radar (KTFX), 23 km from the middle of the area, began a volume at 05:53 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
Apr 7, 4:45 AM MDTNON-TSTM WND GST 671 Ene East Glacier Park, MTMesonet station MTBRN Two Medicine Bridge (MT DOT).
Apr 7, 5:21 AM MDTNON-TSTM WND GST 778 Se East Glacier Park, MTMesonet station DCRM8 Deep Creek RAWS.
Apr 7, 5:45 AM MDTNON-TSTM WND GST 702 Se Browning, MTMesonet station MTBWG Browning (MT DOT).
Apr 7, 6:00 AM MDTNON-TSTM WND GST 585 Se Browning, MTMesonet station SHBM Browning.
Apr 7, 6:00 AM MDTNON-TSTM WND GST 6720 Sw Bynum, MTMesonet station SALMT Salmond Ranch.
Apr 7, 7:25 AM MDTNON-TSTM WND GST 659 Sw Dupuyer, MTMesonet station DVI01084 Dupuyer.
Apr 7, 7:55 AM MDTNON-TSTM WND GST 788 W Bynum, MTBynum W Montana Mesonet reported a 78 mph wind gust.
Apr 7, 8:15 AM MDTNON-TSTM WND GST 7114 W Bynum, MTMesonet station DELMT Dellwo (MCSCN).
Apr 7, 8:15 AM MDTNON-TSTM WND GST 722 Se Browning, MTMesonet station MTBWG Browning (MT DOT).
Apr 7, 8:21 AM MDTNON-TSTM WND GST 64Browning, MTMesonet station BGRM8 Browning RAWS.
Apr 7, 9:15 AM MDTNON-TSTM WND GST 772 Nw Pendroy, MTMesonet station MTPND Pendroy (MT DOT).
Apr 7, 9:20 AM MDTNON-TSTM WND GST 6316 Wsw Cut Bank, MTMission Lake S Montana Mesonet reported a 63 mph wind gust.
Apr 7, 9:30 AM MDTNON-TSTM WND GST 748 Ssw Choteau, MTMesonet station MTCTS Choteau South Us-287 Mp 56.0.
Apr 7, 9:50 AM MDTHIGH SUST WINDS 558 W Bynum, MTBynum W Montana Mesonet averaged 55 mph sustained winds for 2 hrs ad 55 minutes ending at report time.
Apr 7, 10:15 AM MDTHIGH SUST WINDS 518 Ssw Choteau, MTChoteau S MT DOT averaged 51 mph sustained winds for 1 hour ending at report time.
Apr 7, 10:35 AM MDTNON-TSTM WND GST 667 Nne Augusta, MTAugusta N Montana Mesonet reported a 66 mph Wind Gust.
Apr 7, 11:00 AM MDTNON-TSTM WND GST 5812 Nne Augusta, MTMesonet station HODMT Hodgkiss.
Apr 7, 11:24 AM MDTNON-TSTM WND GST 6114 Sw Augusta, MTUpper Elk Creek - KMTAUGUS3.
Apr 7, 11:30 AM MDTNON-TSTM WND GST 584 Nnw Choteau, MTMesonet station GW6907 CHOTEAU FOUR NW.
Apr 7, 11:30 AM MDTNON-TSTM WND GST 625 Ese Pendroy, MTMesonet station RICMT Rice Ridge.
Apr 7, 11:45 AM MDTNON-TSTM WND GST 634 Se Virginia City, MTMesonet station MTM17 BLM - Virginia City.
Apr 7, 1:14 PM MDTNON-TSTM WND GST 585 Wsw Martinsdale, MTIngerRanch - KMTMONTA17.
Apr 7, 1:16 PM MDTNON-TSTM WND GST 611 Ese Wise River, MTMesonet station WRSM8 Wise River.
Apr 7, 1:17 PM MDTNON-TSTM WND GST 615 Wsw Great Falls, MTA wind gust of 61 mph was reported by the Great Falls Airport.
Apr 7, 1:28 PM MDTHIGH SUST WINDS 4416 Wsw Cut Bank, MTMission Lake S Montana Mesonet averaged 44 mph over 8:50 am - 11:05 am.
Apr 7, 1:40 PM MDTHIGH SUST WINDS 4414 E Saint Mary, MTA sustained wind of 44 mph from 5:00 AM - 9:05 AM was reported at Wetzel NE Montana Mesonet.
Apr 7, 1:47 PM MDTHIGH SUST WINDS 492 Se Browning, MTA sustained wind of 49 mph from 5:00 AM to 10:30 AM was reported by Browning MDT.
Apr 7, 1:50 PM MDTHIGH SUST WINDS 428 Sse Fort Shaw, MTSun River SE (Montana Mesonet) averaged 42 mph sustained winds for 1 hr and 10 minutes ending at report time. It also averaged 41 mph sustained winds between 320 PM and 445 PM.
Apr 7, 1:55 PM MDTNON-TSTM WND GST 602 Nw Windham, MTAWOS station K1CM Charlie.
Apr 7, 1:56 PM MDTHIGH SUST WINDS 509 Ese East Glacier Park, MTA sustained wind of 50 mph from 4:45 AM to 5:45 AM was reported by Dog Gun Lake Montana Mesonet.
Apr 7, 2:00 PM MDTNON-TSTM WND GST 613 N Fairfield, MTFairfield - MT Mesonet FARM8.
Apr 7, 2:15 PM MDTNON-TSTM WND GST 6015 S Whitlash, MTMesonet station GW4063 EAGLE CREEK COLONY.
Apr 7, 2:45 PM MDTNON-TSTM WND GST 594 E Cascade, MTMesonet station MTM76 Cascade E Mda.
Apr 7, 2:45 PM MDTNON-TSTM WND GST 626 S Whitlash, MTMesonet station GW3546 WHITLASH SEVEN SOUTH.
Apr 7, 2:54 PM MDTNON-TSTM WND GST 618 W Townsend, MTMesonet station EKHM8 Elkhorn RAWS - 8 W Townsend.
Apr 7, 3:30 PM MDTNON-TSTM WND GST 59Joplin, MTMesonet station GW0416 Joplin.
Apr 7, 3:45 PM MDTNON-TSTM WND GST 607 Se Lothair, MTMesonet station GW3478 TCTIBER.
Apr 7, 4:00 PM MDTNON-TSTM WND GST 5816 Se Gallatin Gateway, MTMesonet station GNFHY 10.7 W Emigrant (AVALANCHE).
Apr 7, 4:20 PM MDTHIGH SUST WINDS 419 Ene Brady, MTBrady NE Montana Mesonet averaged 41 mph sustained winds for 1 hour ending at report time.
Apr 7, 4:24 PM MDTNON-TSTM WND GST 595 Wsw Martinsdale, MTIngerRanch - KMTMONTA17.
Apr 7, 4:30 PM MDTNON-TSTM WND GST 5814 Nnw Joplin, MTMesonet station DW4821 Chester.
Apr 7, 4:30 PM MDTNON-TSTM WND GST 592 Ssw Garneill, MTJudith Gap Montana Mesonet reported a 59 mph gust.
Apr 7, 4:30 PM MDTNON-TSTM WND GST 6412 E Bozeman, MTMesonet station MTBZH Bozeman Pass (MT DOT).
Apr 7, 5:00 PM MDTNON-TSTM WND GST 5913 E Roy, MTRoy East MT-Mesonet - RYOM8.
Apr 7, 5:18 PM MDTNON-TSTM WND GST 5913 S Fort Belknap, MTMesonet station FBLM8 Fort Belknap RAWS.
Apr 7, 5:40 PM MDTHIGH SUST WINDS 408 N Forestgrove, MTForestgrove N Montana Mesonet averaged 40 mph sustained winds over the course of 1 hour ending at report time.
Apr 7, 5:47 PM MDTNON-TSTM WND GST 612 E Helena, MTASOS station KHLN Helena Airport.
Apr 7, 6:00 PM MDTNON-TSTM WND GST 5914 Wsw Saint Mary, MTMesonet station LGPVC Logan Pass (GNP).
Apr 7, 6:35 PM MDTHIGH SUST WINDS 4113 Ene Roy, MTRoy E Montana Mesonet averaged 41 mph sustained winds over the past 1 hr and 15 minutes ending at report time.

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

The nearest sounding before it

Glasgow Intl Airport, MT (KGGW), launched 00:00Z, 5.9 hours before the alert went out and 367 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, Glasgow Intl Airport, MT at 00:00Z on 2026-04-06Temperature 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 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Glasgow Intl Airport, MT at 00:00Z on 2026-04-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -4 square meters per square second.1939587897Sfc1 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
1449 m above ground
0-6 km bulk shear
65 kt
0-1 km storm-relative helicity
-4 m²/s²
0-3 km storm-relative helicity
117 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

495 
WWUS75 KTFX 060556
NPWTFX

URGENT - WEATHER MESSAGE
National Weather Service Great Falls MT
1156 PM MDT Sun Apr 5 2026

MTZ301>303-307-308-062300-
/O.UPG.KTFX.HW.A.0018.260407T1200Z-260408T0300Z/
/O.NEW.KTFX.HW.W.0020.260407T0900Z-260408T0300Z/
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, Pendroy, Cut Bank,
Rogers Pass, Babb, Bynum, Ethridge, East Glacier Park, Choteau,
Browning, Dupuyer, Saint Mary, Logan Pass, Heart Butte, Marias
Pass, and Santa Rita
1156 PM MDT Sun Apr 5 2026

...HIGH WIND WARNING IN EFFECT FROM 3 AM TO 9 PM MDT TUESDAY...

* WHAT...West winds 40 to 50 mph with gusts up to 90 mph possible.

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

* WHEN...From 3 AM to 9 PM MDT Tuesday.

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

* ADDITIONAL DETAILS...Blowing dust may significantly reduce 
  visibility at times, especially along Interstate 15 between Shelby 
  and the Canadian border.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Those operating high profile or light weight vehicles should 
consider delaying or canceling travel.

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

&&

$$

MTZ304-309-310-312-313-315>317-319>322-062300-
/O.UPG.KTFX.HW.A.0018.260407T1500Z-260408T0300Z/
/O.NEW.KTFX.HW.W.0020.260407T1500Z-260408T0300Z/
Eastern Toole and Liberty-Eastern Pondera and Eastern Teton-
Western and Central Chouteau County-Cascade County below 5000ft-
Judith Basin County and Judith Gap-Upper Blackfoot and MacDonald
Pass-Gates of the Mountains-Little Belt and Highwood Mountains-
Helena Valley-Big Belt, Bridger and Castle Mountains-Meagher
County Valleys-Elkhorn and Boulder Mountains-
Including the following locations: Devon, Martinsdale, Moccasin,
Galata, Raynesford, Elk Park Pass, Floweree, Helena, Lincoln,
Bozeman Pass, Flesher Pass, Neihart, Battle Ridge Pass, Windham,
Whitlash, Deep Creek Pass, Homestake Pass, Stanford, Ringling,
Clancy, Hobson, Geyser, Benchland, Carter, Monarch, White Sulphur
Springs, Lothair, Wolf Creek, Kings Hill Pass, Checkerboard,
Corbin, Great Falls, Maudlow, Trident, Joplin, Conrad, Fort
Benton, Shelby, Boulder, Montana City, MacDonald Pass, Ledger,
Wickes, Canyon Creek, Brady, Chester, Craig, and Marysville
1156 PM MDT Sun Apr 5 2026

...HIGH WIND WARNING IN EFFECT FROM 9 AM TO 9 PM MDT TUESDAY...

* WHAT...Southwest to west winds 30 to 40 mph with gusts up to 75 
  mph possible. The strongest winds will occur along and west of the 
  Interstate 15 corridor and north of the Montana Hwy 200 corridor.

* WHERE...Portions of central and north central Montana.

* WHEN...From 9 AM to 9 PM MDT Tuesday.

* IMPACTS...Damaging winds may blow down trees and power lines. 
  Power outages are possible. Travel could be very difficult, 
  especially for high profile or light weight vehicles. Blowing dust 
  could reduce visibility at times.

* ADDITIONAL DETAILS...Blowing dust may significantly reduce 
  visibility at times, especially along Interstate 15 between Shelby 
  and the Canadian border.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

MTZ325-062300-
/O.UPG.KTFX.HW.A.0018.260407T1500Z-260408T0300Z/
/O.NEW.KTFX.HW.W.0020.260407T1500Z-260408T0300Z/
Madison River Valley-
Including the following locations: Cameron, McAllister, Jeffers,
Ennis, and Norris
1156 PM MDT Sun Apr 5 2026

...HIGH WIND WARNING IN EFFECT FROM 9 AM TO 9 PM MDT TUESDAY...

* WHAT...Southerly winds 30 to 40 mph with gusts up to 60 mph 
  possible. Winds will shift westerly late Tuesday afternoon.

* WHERE...Madison River Valley.

* WHEN...From 9 AM to 9 PM MDT Tuesday.

* 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.

&&

$$

MTZ327-328-062300-
/O.UPG.KTFX.HW.A.0018.260407T1500Z-260408T0300Z/
/O.NEW.KTFX.HW.W.0020.260407T1500Z-260408T0300Z/
Northwest Beaverhead County-Beaverhead and Western Madison below
6000ft-
Including the following locations: Wisdom, Chief Joseph Pass,
Dillon, Wise River, Bannack, Dewey, Waterloo, Big Hole Pass, and
Glen
1156 PM MDT Sun Apr 5 2026

...HIGH WIND WARNING IN EFFECT FROM 9 AM TO 9 PM MDT TUESDAY...

* WHAT...Southwest to west winds 30 to 40 mph with gusts up to 65 
  mph possible.

* WHERE...Beaverhead and Western Madison below 6000ft and Northwest 
  Beaverhead County.

* WHEN...From 9 AM to 9 PM MDT Tuesday.

* 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.

&&

$$

MTZ311-314-318-062300-
/O.EXT.KTFX.HW.A.0018.260407T2100Z-260408T1800Z/
Bears Paw Mountains and Southern Blaine-Fergus County below
4500ft-Snowy and Judith Mountains-
Including the following locations: Hilger, Lewistown, and Rocky
Boy
1156 PM MDT Sun Apr 5 2026

...HIGH WIND WATCH NOW IN EFFECT FROM TUESDAY AFTERNOON THROUGH 
WEDNESDAY MORNING...

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

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

* WHEN...From Tuesday afternoon through Wednesday morning.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates.

&&

$$

RG
6 follow-up statements
919 
WWUS75 KTFX 061856
NPWTFX

URGENT - WEATHER MESSAGE
National Weather Service Great Falls MT
1256 PM MDT Mon Apr 6 2026

MTZ318-062000-
/O.CAN.KTFX.HW.A.0018.260407T2100Z-260408T1800Z/
Snowy and Judith Mountains-
1256 PM MDT Mon Apr 6 2026

...HIGH WIND WATCH IS CANCELLED...

$$

MTZ311-314-071000-
/O.UPG.KTFX.HW.A.0018.260407T2100Z-260408T1800Z/
/O.EXB.KTFX.HW.W.0020.260407T2100Z-260408T1800Z/
Bears Paw Mountains and Southern Blaine-Fergus County below
4500ft-
Including the following locations: Lewistown, Hilger, and Rocky
Boy
1256 PM MDT Mon Apr 6 2026

...HIGH WIND WARNING IN EFFECT FROM 3 PM TUESDAY TO NOON MDT 
WEDNESDAY...

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

* WHERE...Bears Paw Mountains and Southern Blaine and Fergus County 
  below 4500ft.

* WHEN...From 3 PM Tuesday to noon MDT Wednesday.

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

* ADDITIONAL DETAILS...There will be a period of strong winds 
  Tuesday afternoon through early Tuesday evening. There will be a 
  brief lull Tuesday night before there is a second period of strong 
  winds Wednesday morning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

MTZ301>303-307-308-071000-
/O.CON.KTFX.HW.W.0020.260407T0900Z-260408T0300Z/
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: Saint Mary, Heart Butte,
Bynum, Babb, Choteau, Browning, Marias Pass, Cut Bank, Ethridge,
Dupuyer, East Glacier Park, Logan Pass, Pendroy, Rogers Pass,
Santa Rita, and Kiowa
1256 PM MDT Mon Apr 6 2026

...HIGH WIND WARNING REMAINS IN EFFECT FROM 3 AM TO 9 PM MDT 
TUESDAY...

* WHAT...West winds 40 to 50 mph with gusts up to 90 mph possible.

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

* WHEN...From 3 AM to 9 PM MDT Tuesday.

* IMPACTS...High winds will move loose debris and damage property. 
  Power outages are possible. Travel will be very difficult, 
  especially for high profile vehicles. Blowing dust may 
  significantly reduce visibility at times, especially along 
  Interstate 15 between Shelby and the Canadian border.

* ADDITIONAL DETAILS...A cold front will move through Tuesday 
  afternoon and shut off the strong winds early Tuesday afternoon 
  for the Northern Rocky Mountain Front and adjacent plains west of 
  I-15.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Those operating high profile or light weight vehicles should 
consider delaying or canceling travel.

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

&&

$$

MTZ304-309-310-312-313-315>317-319>322-071000-
/O.CON.KTFX.HW.W.0020.260407T1500Z-260408T0300Z/
Eastern Toole and Liberty-Eastern Pondera and Eastern Teton-
Western and Central Chouteau County-Cascade County below 5000ft-
Judith Basin County and Judith Gap-Upper Blackfoot and MacDonald
Pass-Gates of the Mountains-Little Belt and Highwood Mountains-
Helena Valley-Big Belt, Bridger and Castle Mountains-Meagher
County Valleys-Elkhorn and Boulder Mountains-
Including the following locations: Helena, Windham, Carter,
Moccasin, Checkerboard, Wolf Creek, Whitlash, MacDonald Pass, Elk
Park Pass, Maudlow, Boulder, Canyon Creek, Hobson, Lincoln, Great
Falls, Monarch, Martinsdale, Conrad, Bozeman Pass, Fort Benton,
Floweree, Montana City, Ledger, Geyser, Benchland, Flesher Pass,
Joplin, Kings Hill Pass, Trident, Lothair, Marysville, Corbin,
Devon, Shelby, Raynesford, Neihart, Chester, Battle Ridge Pass,
Clancy, Galata, Wickes, Craig, Homestake Pass, Deep Creek Pass,
Stanford, White Sulphur Springs, Ringling, and Brady
1256 PM MDT Mon Apr 6 2026

...HIGH WIND WARNING REMAINS IN EFFECT FROM 9 AM TO 9 PM MDT 
TUESDAY...

* WHAT...Southwest to west winds 30 to 40 mph with gusts up to 75 
  mph possible. The strongest winds will occur along and west of the 
  Interstate 15 corridor and along and north of the Montana Hwy 200 
  corridor.

* WHERE...Portions of central and north central Montana.

* WHEN...From 9 AM to 9 PM MDT Tuesday.

* IMPACTS...Damaging winds may blow down trees and power lines. 
  Power outages are possible. Travel could be very difficult, 
  especially for high profile or light weight vehicles. Blowing dust 
  could reduce visibility at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

MTZ325-071000-
/O.CON.KTFX.HW.W.0020.260407T1500Z-260408T0300Z/
Madison River Valley-
Including the following locations: Ennis, McAllister, Norris,
Cameron, and Jeffers
1256 PM MDT Mon Apr 6 2026

...HIGH WIND WARNING REMAINS IN EFFECT FROM 9 AM TO 9 PM MDT 
TUESDAY...

* WHAT...Southerly winds 30 to 40 mph with gusts up to 60 mph 
  possible. Winds will shift westerly late Tuesday afternoon.

* WHERE...Madison River Valley.

* WHEN...From 9 AM to 9 PM MDT Tuesday.

* 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.

&&

$$

MTZ327-328-071000-
/O.CON.KTFX.HW.W.0020.260407T1500Z-260408T0300Z/
Northwest Beaverhead County-Beaverhead and Western Madison below
6000ft-
Including the following locations: Wisdom, Dillon, Waterloo, Wise
River, Dewey, Big Hole Pass, Glen, Chief Joseph Pass, and Bannack
1256 PM MDT Mon Apr 6 2026

...HIGH WIND WARNING REMAINS IN EFFECT FROM 9 AM TO 9 PM MDT 
TUESDAY...

* WHAT...Southwest to west winds 30 to 40 mph with gusts up to 65 
  mph possible.

* WHERE...Beaverhead and Western Madison below 6000ft and Northwest 
  Beaverhead County.

* WHEN...From 9 AM to 9 PM MDT Tuesday.

* 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.

&&

$$

IG
346 
WWUS75 KTFX 070525
NPWTFX

URGENT - WEATHER MESSAGE
National Weather Service Great Falls MT
1125 PM MDT Mon Apr 6 2026

MTZ301>303-307-308-080030-
/O.CON.KTFX.HW.W.0020.260407T0900Z-260408T0300Z/
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: Santa Rita, Dupuyer, East
Glacier Park, Logan Pass, Bynum, Cut Bank, Heart Butte, Ethridge,
Kiowa, Saint Mary, Babb, Marias Pass, Browning, Rogers Pass,
Choteau, and Pendroy
1125 PM MDT Mon Apr 6 2026

...HIGH WIND WARNING REMAINS IN EFFECT FROM 3 AM TO 9 PM MDT 
TUESDAY...

* WHAT...West winds 35 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 3 AM to 9 PM MDT Tuesday.

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

* ADDITIONAL DETAILS...A cold front will move through Tuesday 
  afternoon and shut off the strongest winds early Tuesday afternoon 
  for the Northern Rocky Mountain Front and adjacent plains west of 
  I-15.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Those operating high profile or light weight vehicles should 
consider delaying travel.

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

&&

$$

MTZ304-309-310-312-313-315>317-319>322-080030-
/O.CON.KTFX.HW.W.0020.260407T1500Z-260408T0300Z/
Eastern Toole and Liberty-Eastern Pondera and Eastern Teton-
Western and Central Chouteau County-Cascade County below 5000ft-
Judith Basin County and Judith Gap-Upper Blackfoot and MacDonald
Pass-Gates of the Mountains-Little Belt and Highwood Mountains-
Helena Valley-Big Belt, Bridger and Castle Mountains-Meagher
County Valleys-Elkhorn and Boulder Mountains-
Including the following locations: Helena, Geyser, Craig, Kings
Hill Pass, Homestake Pass, Neihart, Floweree, Whitlash,
Raynesford, White Sulphur Springs, Elk Park Pass, Conrad, Bozeman
Pass, Lincoln, Flesher Pass, Benchland, Wolf Creek, Shelby,
Joplin, Martinsdale, Chester, Canyon Creek, Checkerboard, Devon,
Deep Creek Pass, Carter, Stanford, Moccasin, Clancy, Fort Benton,
Marysville, Corbin, MacDonald Pass, Battle Ridge Pass, Monarch,
Boulder, Windham, Ringling, Trident, Maudlow, Galata, Hobson,
Wickes, Lothair, Brady, Ledger, Montana City, and Great Falls
1125 PM MDT Mon Apr 6 2026

...HIGH WIND WARNING REMAINS IN EFFECT FROM 9 AM TO 9 PM MDT 
TUESDAY...

* WHAT...West winds 30 to 45 mph with gusts up to 70 mph expected.

* WHERE...Portions of central and north central Montana.

* WHEN...From 9 AM to 9 PM MDT Tuesday.

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

* ADDITIONAL DETAILS...Localized blowing dust will be possible in 
  areas that have missed out on recent precipitation.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

MTZ325-080030-
/O.CON.KTFX.HW.W.0020.260407T1500Z-260408T0300Z/
Madison River Valley-
Including the following locations: Ennis, Jeffers, Norris,
McAllister, and Cameron
1125 PM MDT Mon Apr 6 2026

...HIGH WIND WARNING REMAINS IN EFFECT FROM 9 AM TO 9 PM MDT 
TUESDAY...

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

* WHERE...Madison River Valley.

* WHEN...From 9 AM to 9 PM MDT Tuesday.

* 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.

&&

$$

MTZ327-328-080030-
/O.CON.KTFX.HW.W.0020.260407T1500Z-260408T0300Z/
Northwest Beaverhead County-Beaverhead and Western Madison below
6000ft-
Including the following locations: Wise River, Wisdom, Dillon,
Glen, Big Hole Pass, Bannack, Waterloo, Chief Joseph Pass, and
Dewey
1125 PM MDT Mon Apr 6 2026

...HIGH WIND WARNING REMAINS IN EFFECT FROM 9 AM TO 9 PM MDT 
TUESDAY...

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

* WHERE...Beaverhead and Western Madison below 6000ft and Northwest 
  Beaverhead County.

* WHEN...From 9 AM to 9 PM MDT Tuesday.

* 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.

&&

$$

MTZ311-314-080030-
/O.CON.KTFX.HW.W.0020.260407T2100Z-260408T1800Z/
Bears Paw Mountains and Southern Blaine-Fergus County below
4500ft-
Including the following locations: Lewistown, Rocky Boy, and
Hilger
1125 PM MDT Mon Apr 6 2026

...HIGH WIND WARNING REMAINS IN EFFECT FROM 3 PM TUESDAY TO NOON MDT 
WEDNESDAY...

* WHAT...Northwest winds 25 to 40 mph with gusts up to 60 mph 
  expected.

* WHERE...Bears Paw Mountains and Southern Blaine and Fergus County 
  below 4500ft.

* WHEN...From 3 PM Tuesday to noon MDT Wednesday.

* 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 timeframe for strongest winds looks to be 
  late Tuesday afternoon and then again Wednesday morning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

AM
482 
WWUS75 KTFX 071900
NPWTFX

URGENT - WEATHER MESSAGE
National Weather Service Great Falls MT
100 PM MDT Tue Apr 7 2026

MTZ301>304-072000-
/O.CAN.KTFX.HW.W.0020.000000T0000Z-260408T0300Z/
East Glacier Park Region-Northern High Plains-Eastern Glacier,
Western Toole, and Central Pondera-Eastern Toole and Liberty-
Including the following locations: Logan Pass, Kiowa, Ethridge,
East Glacier Park, Marias Pass, Chester, Dupuyer, Lothair,
Browning, Heart Butte, Devon, Cut Bank, Whitlash, Babb, Shelby,
Joplin, Saint Mary, Santa Rita, and Galata
100 PM MDT Tue Apr 7 2026

...HIGH WIND WARNING IS CANCELLED...

The threat has ended.

$$

MTZ307-308-080300-
/O.CON.KTFX.HW.W.0020.000000T0000Z-260408T0300Z/
Southern Rocky Mountain Front-Southern High Plains-
Including the following locations: Rogers Pass, Bynum, Choteau,
and Pendroy
100 PM MDT Tue Apr 7 2026

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING...

* WHAT...West winds 35 to 50 mph with gusts up to 75 mph expected.

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

* WHEN...Until 9 PM MDT this evening.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Those operating high profile or light weight vehicles should 
consider delaying travel.

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

&&

$$

MTZ309-310-312-313-315>317-319>322-080300-
/O.CON.KTFX.HW.W.0020.000000T0000Z-260408T0300Z/
Eastern Pondera and Eastern Teton-Western and Central Chouteau
County-Cascade County below 5000ft-Judith Basin County and Judith
Gap-Upper Blackfoot and MacDonald Pass-Gates of the Mountains-
Little Belt and Highwood Mountains-Helena Valley-Big Belt,
Bridger and Castle Mountains-Meagher County Valleys-Elkhorn and
Boulder Mountains-
Including the following locations: Floweree, Ledger, Flesher
Pass, Stanford, Lincoln, Neihart, Geyser, Brady, Wickes, Kings
Hill Pass, Boulder, Windham, Wolf Creek, Corbin, MacDonald Pass,
White Sulphur Springs, Fort Benton, Maudlow, Checkerboard, Elk
Park Pass, Hobson, Battle Ridge Pass, Raynesford, Martinsdale,
Monarch, Montana City, Canyon Creek, Clancy, Craig, Marysville,
Carter, Deep Creek Pass, Ringling, Conrad, Benchland, Trident,
Helena, Bozeman Pass, Great Falls, Moccasin, and Homestake Pass
100 PM MDT Tue Apr 7 2026

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING...

* WHAT...West winds 30 to 45 mph with gusts up to 70 mph expected.

* WHERE...Portions of central and north central Montana.

* WHEN...Until 9 PM MDT this evening.

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

* ADDITIONAL DETAILS...Localized blowing dust will be possible in 
  areas that have missed out on recent precipitation.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

MTZ325-080300-
/O.CON.KTFX.HW.W.0020.000000T0000Z-260408T0300Z/
Madison River Valley-
Including the following locations: Ennis, Norris, Cameron,
McAllister, and Jeffers
100 PM MDT Tue Apr 7 2026

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING...

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

* WHERE...Madison River Valley.

* WHEN...Until 9 PM MDT this evening.

* 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.

&&

$$

MTZ327-328-080300-
/O.CON.KTFX.HW.W.0020.000000T0000Z-260408T0300Z/
Northwest Beaverhead County-Beaverhead and Western Madison below
6000ft-
Including the following locations: Wise River, Chief Joseph Pass,
Glen, Dillon, Bannack, Waterloo, Big Hole Pass, Dewey, and Wisdom
100 PM MDT Tue Apr 7 2026

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING...

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

* WHERE...Beaverhead and Western Madison below 6000ft and Northwest 
  Beaverhead County.

* WHEN...Until 9 PM MDT this evening.

* 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.

&&

$$

MTZ311-314-081000-
/O.CON.KTFX.HW.W.0020.260407T2100Z-260408T1800Z/
Bears Paw Mountains and Southern Blaine-Fergus County below
4500ft-
Including the following locations: Rocky Boy, Hilger, and
Lewistown
100 PM MDT Tue Apr 7 2026

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL NOON MDT WEDNESDAY...

* WHAT...Northwest winds 25 to 40 mph with gusts up to 60 mph 
  expected.

* WHERE...Bears Paw Mountains and Southern Blaine and Fergus County 
  below 4500ft.

* WHEN...Until noon MDT Wednesday.

* 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 timeframe for strongest winds looks to be 
  late Tuesday afternoon and then again Wednesday morning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

IG
227 
WWUS75 KTFX 080242
NPWTFX

URGENT - WEATHER MESSAGE
National Weather Service Great Falls MT
842 PM MDT Tue Apr 7 2026

MTZ307>310-312-313-315>317-319>322-325-327-328-080345-
/O.EXP.KTFX.HW.W.0020.000000T0000Z-260408T0300Z/
Southern Rocky Mountain Front-Southern High Plains-Eastern
Pondera and Eastern Teton-Western and Central Chouteau County-
Cascade County below 5000ft-Judith Basin County and Judith Gap-
Upper Blackfoot and MacDonald Pass-Gates of the Mountains-Little
Belt and Highwood Mountains-Helena Valley-Big Belt, Bridger and
Castle Mountains-Meagher County Valleys-Elkhorn and Boulder
Mountains-Madison River Valley-Northwest Beaverhead County-
Beaverhead and Western Madison below 6000ft-
Including the following locations: Moccasin, Ringling,
Checkerboard, Boulder, Glen, Bannack, Conrad, Chief Joseph Pass,
Ennis, Cameron, Big Hole Pass, Raynesford, Neihart, Deep Creek
Pass, Hobson, Stanford, Martinsdale, Montana City, Floweree,
Great Falls, Lincoln, Choteau, Elk Park Pass, Dillon, Kings Hill
Pass, McAllister, Pendroy, Fort Benton, Craig, Benchland,
Monarch, Wickes, Battle Ridge Pass, Waterloo, Homestake Pass,
MacDonald Pass, Clancy, Dewey, Wise River, Wolf Creek, Jeffers,
White Sulphur Springs, Marysville, Flesher Pass, Helena, Maudlow,
Bozeman Pass, Geyser, Ledger, Brady, Carter, Canyon Creek, Rogers
Pass, Norris, Wisdom, Windham, Bynum, Trident, and Corbin
842 PM MDT Tue Apr 7 2026

...HIGH WIND WARNING WILL EXPIRE AT 9 PM MDT THIS EVENING...

Gusty west to northwest winds are diminishing and the risk for 
strong wind gusts has ended.

$$

MTZ311-314-081745-
/O.CON.KTFX.HW.W.0020.000000T0000Z-260408T1800Z/
Bears Paw Mountains and Southern Blaine-Fergus County below
4500ft-
Including the following locations: Lewistown, Hilger, and Rocky
Boy
842 PM MDT Tue Apr 7 2026

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL NOON MDT WEDNESDAY...

* WHAT...Northwest winds 25 to 35 mph with gusts up to 60 mph 
  redeveloping by Wednesday morning.

* WHERE...Bears Paw Mountains and Southern Blaine and Fergus County 
  below 4500ft.

* WHEN...Until noon MDT Wednesday.

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

* ADDITIONAL DETAILS...Gusty northwest winds have subsided this 
  evening but are expected to redevelop overnight with another peak 
  in northwest winds occurring Wednesday morning.

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.

&&

$$

Hoenisch
747 
WWUS75 KTFX 080718
NPWTFX

URGENT - WEATHER MESSAGE
National Weather Service Great Falls MT
118 AM MDT Wed Apr 8 2026

MTZ311-314-081800-
/O.CON.KTFX.HW.W.0020.000000T0000Z-260408T1800Z/
Bears Paw Mountains and Southern Blaine-Fergus County below
4500ft-
Including the following locations: Hilger, Lewistown, and Rocky
Boy
118 AM MDT Wed Apr 8 2026

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL NOON MDT TODAY...

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

* WHERE...Bears Paw Mountains and Southern Blaine and Fergus County 
  below 4500ft.

* WHEN...Until noon MDT today.

* 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.

&&

$$

RG
811 
WWUS75 KTFX 081721
NPWTFX

URGENT - WEATHER MESSAGE
National Weather Service Great Falls MT
1121 AM MDT Wed Apr 8 2026

MTZ311-314-081830-
/O.CAN.KTFX.HW.W.0020.000000T0000Z-260408T1800Z/
Bears Paw Mountains and Southern Blaine-Fergus County below
4500ft-
Including the following locations: Rocky Boy, Lewistown, and
Hilger
1121 AM MDT Wed Apr 8 2026

...HIGH WIND WARNING IS CANCELLED...

The threat for strong wind gusts has ended.

$$

Brusda

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 Apr 5, 11:14 PM MDT, 42 minutes earlier. Its key messages:

  • The potential for a widespread and intense wind event continues to grow for the day on Tuesday, with the most intense winds currently expected to occur along and west of the I-15 corridor.
  • Light mountain snow and lower elevation rain and snow showers develop Tuesday night into Wednesday behind a cold front.
  • Another trough looks to move in during the second half of next weekend for another cool down and increased shower activity.
Area forecast discussion, Apr 5, 11:14 PM MDT, 42 minutes before
Area Forecast Discussion
National Weather Service Great Falls MT
1114 PM MDT Sun Apr 5 2026

Aviation Section Updated.

.KEY MESSAGES...

 - The potential for a widespread and intense wind event continues
   to grow for the day on Tuesday, with the most intense winds
   currently expected to occur along and west of the I-15
   corridor.

 - Light mountain snow and lower elevation rain and snow showers
   develop Tuesday night into Wednesday behind a cold front.

 - Another trough looks to move in during the second half of next weekend
   for another cool down and increased shower activity.

&&

.DISCUSSION...
/Issued 531 PM MDT Sun Apr 5 2026/

 - Meteorological Overview:

Northwest to quasi-northwest flow aloft will remain over the
Northern Rockies through Monday while a 1040 mb surface high moves
southeastward out of Canadian prairies into northern plains. This
will bring a moist easterly flow in the low levels for cloudier
and cooler conditions, particularly for central and north-central
MT. There may be some patchy fog and spotty light precipitation,
though easterly breezes should reduce fog impacts some and
precipitation amounts look to be negligible and mostly
concentrated along the Hi-Line.

On Tuesday, a compact Pacific trough and attendant cold front
will bring a period of strong gusty winds to much of the forecast
area. An H700/H500 60 to 80 kt jet, supported by cold air
advection, looks to pass through during late morning and afternoon
hours when diurnal mixing is near its peak. There will also be
mountain wave activity that will contribute to localized stronger
gusts near areas of higher terrain. These factors will make this
winds more impactful than a typical event. The most persistent
strong winds look to occur along the Rocky Mountain Front and the
plains along and west of the I15 corridor where max gusts in the
75 to 90 mph range will be common. Most of the winds will occur in
the daylight hours with the exception of Fergus County and areas
near the Bear's Paw Mountains. These locations will see their
strongest winds later in the afternoon and continuing well into
the overnight hours.

Light mountain snow and lower elevation scattered rain and snow
shower activity will develop on the backside of this system with a
short period of below average temperatures following the cold
frontal passage. Milder conditions move in for next weekend before
another trough passes through heading into early next week. While
this system should bring some cooler temperatures and increased
shower activity, confidence is low in regards to precipitation
coverage and amounts due to a large portion of the said trough
shearing off and moving southeast toward the Great Basin and
southwestern conus. - RCG

 - Forecast Confidence & Scenarios:

High Wind Potential on Tuesday...

Confidence continues to rise from shift-to-shift that high winds
will occur on Tuesday across portions of Southwest, Central, and
North Central Montana; however, the areal coverage of these high
winds still remains uncertain and thus the High Wind Watches that
were issued over the past 24 hours remain valid. Additionally, the
High Wind Watch was expanded to include the Gates of Mountains,
Helena Valley, Meagher County Valleys, and Elkhorn and Boulder
Mountains zones. While these locations may see a shorter period of
high winds as compared to other areas the potential intensity of
these winds within a shorter period of time necessitated the further
expansion of the High Wind Watch.

Run-to-run values within the ECMWF EFIs and NAEFS continue to
increase, which is giving rise to increased confidence that a very
unusual to potentially extreme high wind event, with respect to
April climatology, may occur across portions of the Northern Rockies
on Tuesday. ECMWF EFIs with respect to wind gusts have now reached
an impressive 0.8 to 0.99 across much of Southwest through North
Central Montana, with even a Shift of Tails (SOTs) of 1 now being
observed across much of Central Montana. While a SOT of 1 appearing
is not in itself impressive it is worth mentioning given the run-to-
run tendency over the past 48 hours for values to increase.
Additionally, EFIs with respect to sustained wind speeds now range
from 0.6 to 0.9 across much of the same areas, which is concerning
as a prolonged period of sustained high winds will stress
infrastructure that has already been stressed over multiple wind
events since October 2025. H700 winds per NAEFS analysis are
forecasted to reach between 40-70kts on Tuesday, with return
interval for these values occurring 1 day every 10 years during the
first half of April climatology. This further helps to strengthen
confidence in an impactful wind event, especially considering that
the increasing April sun angle will contribute to deeper mixing as
compared to during the heart of the winter season. As of right now
deterministic guidance has the strongest mid-level winds and trough
axis moving over Southwest through North Central Montana from the
mid-morning hours on Tuesday through the afternoon hours, which
should ensure that a portion of these winds mix down. Where
exactly the core of strongest winds is at between 18-24z on
Tuesday during peak mixing will ultimately determine where the
most intense winds occur, but none-the-less other areas will
still see strong winds.

The following table illustrates the NBM10Pct (Low End Scenario),
NBM50Pct (Most Likely Scenario), and NBM90Pct (High End Scenario)
for maximum wind gusts (mph) and sustained winds speeds (mph) for
select locations across North Central, Central, and Southwest
Montana :

                         24 Hour Maximum Wind Gusts
LOCATION               Low End | Most Likely | High End
Browning                60 MPH |   75 MPH    |  85 MPH
Cut Bank                60 MPH |   70 MPH    |  85 MPH
Havre                   45 MPH |   50 MPH    |  65 MPH
Great Falls             50 MPH |   60 MPH    |  75 MPH
Lewistown               40 MPH |   50 MPH    |  60 MPH
Helena                  45 MPH |   60 MPH    |  75 MPH
White Sulphur Springs   45 MPH |   50 MPH    |  65 MPH
Bozeman                 50 MPH |   55 MPH    |  70 MPH
Dillon                  50 MPH |   60 MPH    |  70 MPH
Ennis                   40 MPH |   50 MPH    |  60 MPH
West Yellowstone        35 MPH |   45 MPH    |  55 MPH

                    24 Hour Maximum Sustained Wind Speeds
LOCATION               Low End | Most Likely | High End
Browning                40 MPH |   50 MPH    |  60 MPH
Cut Bank                40 MPH |   50 MPH    |  60 MPH
Havre                   30 MPH |   35 MPH    |  45 MPH
Great Falls             35 MPH |   45 MPH    |  50 MPH
Lewistown               25 MPH |   35 MPH    |  40 MPH
Helena                  25 MPH |   40 MPH    |  50 MPH
White Sulphur Springs   25 MPH |   35 MPH    |  40 MPH
Bozeman                 30 MPH |   35 MPH    |  45 MPH
Dillon                  30 MPH |   35 MPH    |  45 MPH
Ennis                   30 MPH |   40 MPH    |  50 MPH
West Yellowstone        15 MPH |   15 MPH    |  20 MPH

- Moldan

&&

.AVIATION...
06/06Z TAF Period

The initial concern this TAF period will be for some low clouds
across North-central Montana through the morning Monday. VFR
conditions prevail otherwise under mid and high-level cloudiness.
-AM

&&

.PRELIMINARY POINT TEMPS/POPS...
GTF  29  57  41  63 /   0   0  10  10
CTB  26  54  36  55 /   0   0   0  40
HLN  34  63  40  64 /   0  10  10  10
BZN  32  62  35  67 /   0  10  10  20
WYS  24  59  26  58 /   0  10  10  30
DLN  34  65  37  65 /   0  10   0   0
HVR  29  52  31  63 /   0   0  10  20
LWT  28  50  34  65 /  10  10  10  30

&&

.TFX WATCHES/WARNINGS/ADVISORIES...
High Wind Watch from Tuesday morning through Tuesday evening 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 Tuesday morning through Tuesday evening for
Beaverhead and Western Madison below 6000ft-Big Belt, Bridger
and Castle Mountains-Cascade County below 5000ft-Eastern Pondera
and Eastern Teton-Eastern Toole and Liberty-Elkhorn and Boulder
Mountains-Gates of the Mountains-Helena Valley-Judith Basin
County and Judith Gap-Little Belt and Highwood Mountains-Madison
River Valley-Meagher County Valleys-Northwest Beaverhead County-
Upper Blackfoot and MacDonald Pass-Western and Central Chouteau
County.

High Wind Watch from Tuesday afternoon through late Tuesday
night for Bears Paw Mountains and Southern Blaine-Fergus County
below 4500ft-Snowy and Judith Mountains.

&&

http://www.weather.gov/greatfalls

Nearby

High Wind Warnings in Montana, 2026Every high wind warning in 2026

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.