478
WWUS75 KTFX 011500
NPWTFX
URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE GREAT FALLS MT
900 AM MDT SAT AUG 1 2026
MTZ310-311-314-020600-
/O.CON.KTFX.XH.W.0002.260801T1800Z-260802T1800Z/
WESTERN AND CENTRAL CHOUTEAU COUNTY-BEARS PAW MOUNTAINS AND
SOUTHERN BLAINE-FERGUS COUNTY BELOW 4500FT-
INCLUDING THE CITIES OF ROCKY BOY, FLOWEREE, HILGER, CARTER,
LEWISTOWN, AND FORT BENTON
900 AM MDT SAT AUG 1 2026
...EXTREME HEAT WARNING REMAINS IN EFFECT FROM NOON TODAY TO NOON MDT
SUNDAY...
* WHAT...DANGEROUSLY HOT CONDITIONS. HIGH TEMPERATURES ON SATURDAY
BETWEEN 100 TO 110 DEGREES, WITH OVERNIGHT LOWS SATURDAY NIGHT
BETWEEN 70 TO 75 DEGREES.
* WHERE...BEARS PAW MOUNTAINS AND SOUTHERN BLAINE, FERGUS COUNTY
BELOW 4500FT, AND WESTERN AND CENTRAL CHOUTEAU COUNTY.
* WHEN...FROM NOON TODAY TO NOON MDT SUNDAY.
* IMPACTS...HEAT RELATED ILLNESSES INCREASE SIGNIFICANTLY DURING
EXTREME HEAT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
DO NOT LEAVE YOUNG CHILDREN AND PETS IN UNATTENDED VEHICLES. CAR
INTERIORS WILL REACH LETHAL TEMPERATURES IN A MATTER OF MINUTES.
DRINK PLENTY OF FLUIDS, STAY IN AN AIR-CONDITIONED ROOM, STAY OUT OF
THE SUN, AND CHECK UP ON RELATIVES AND NEIGHBORS. IF YOU MUST SPEND
TIME OUTDOORS, WEAR LIGHTWEIGHT AND LOOSE FITTING CLOTHING. TRY TO
LIMIT STRENUOUS ACTIVITIES TO EARLY MORNING OR EVENING. TAKE ACTION
WHEN YOU SEE SYMPTOMS OF HEAT EXHAUSTION AND HEAT STROKE.
MTZ312-313-325-326-020600-
/O.CON.KTFX.XH.W.0002.260801T1800Z-260802T0900Z/
CASCADE COUNTY BELOW 5000FT-JUDITH BASIN COUNTY AND JUDITH GAP-
MADISON RIVER VALLEY-GALLATIN VALLEY-
INCLUDING THE CITIES OF NORRIS, ENNIS, JEFFERS, GEYSER, CAMERON,
MCALLISTER, GREAT FALLS, STANFORD, MOCCASIN, HOBSON, GALLATIN
GATEWAY, WINDHAM, RAYNESFORD, BOZEMAN, AND BENCHLAND
900 AM MDT SAT AUG 1 2026
...EXTREME HEAT WARNING REMAINS IN EFFECT FROM NOON TODAY TO 3 AM MDT
SUNDAY...
* WHAT...DANGEROUSLY HOT CONDITIONS. HIGH TEMPERATURES BETWEEN 100
AND 105 DEGREES EXPECTED.
* WHERE...CASCADE COUNTY BELOW 5000FT, JUDITH BASIN COUNTY AND JUDITH
GAP, GALLATIN VALLEY, AND MADISON RIVER VALLEY.
* WHEN...FROM NOON TODAY TO 3 AM MDT SUNDAY.
* IMPACTS...HEAT RELATED ILLNESSES INCREASE SIGNIFICANTLY DURING
EXTREME HEAT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
DO NOT LEAVE YOUNG CHILDREN AND PETS IN UNATTENDED VEHICLES. CAR
INTERIORS WILL REACH LETHAL TEMPERATURES IN A MATTER OF MINUTES.
DRINK PLENTY OF FLUIDS, STAY IN AN AIR-CONDITIONED ROOM, STAY OUT OF
THE SUN, AND CHECK UP ON RELATIVES AND NEIGHBORS. IF YOU MUST SPEND
TIME OUTDOORS, WEAR LIGHTWEIGHT AND LOOSE FITTING CLOTHING. TRY TO
LIMIT STRENUOUS ACTIVITIES TO EARLY MORNING OR EVENING. TAKE ACTION
WHEN YOU SEE SYMPTOMS OF HEAT EXHAUSTION AND HEAT STROKE.
MTZ303-020600-
/O.CON.KTFX.HW.W.0028.260802T0000Z-260802T1800Z/
/O.CON.KTFX.HT.Y.0004.260801T1800Z-260802T0900Z/
EASTERN GLACIER, WESTERN TOOLE, AND CENTRAL PONDERA-
INCLUDING THE CITIES OF ETHRIDGE, SANTA RITA, AND CUT BANK
900 AM MDT SAT AUG 1 2026
...HIGH WIND WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO NOON
MDT SUNDAY...
...HEAT ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO 3 AM MDT
SUNDAY...
* WHAT...FOR THE HEAT ADVISORY, HIGH TEMPERATURES UP TO 102 DEGREES
EXPECTED. FOR THE HIGH WIND WARNING, WEST WINDS 30 TO 40 MPH, WITH
GUSTS UP TO 60 MPH EXPECTED.
* WHERE...EASTERN GLACIER, WESTERN TOOLE, AND CENTRAL PONDERA.
* WHEN...FOR THE HEAT ADVISORY, FROM NOON TODAY TO 3 AM MDT SUNDAY.
FOR THE HIGH WIND WARNING, FROM 6 PM THIS EVENING TO NOON MDT
SUNDAY.
* IMPACTS...DAMAGING WINDS WILL BLOW DOWN TREES AND POWER LINES.
TRAVEL COULD BE DIFFICULT, ESPECIALLY FOR HIGH PROFILE VEHICLES.
HOT TEMPERATURES MAY CAUSE HEAT ILLNESSES.
* ADDITIONAL DETAILS...THE MOST INTENSE WINDS ARE LIKELY TO OCCUR
BETWEEN 9 PM SATURDAY AND 6 AM SUNDAY WHEN MOUNTAIN WAVE ACTIVITY
WILL BE AT ITS PEAK.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
PEOPLE ARE URGED TO SECURE LOOSE OBJECTS THAT COULD BE BLOWN AROUND
OR DAMAGED BY THE WIND.
DO NOT LEAVE YOUNG CHILDREN AND PETS IN UNATTENDED VEHICLES. CAR
INTERIORS WILL REACH LETHAL TEMPERATURES IN A MATTER OF MINUTES.
DRINK PLENTY OF FLUIDS, STAY IN AN AIR-CONDITIONED ROOM, STAY OUT OF
THE SUN, AND CHECK UP ON RELATIVES AND NEIGHBORS. IF YOU MUST SPEND
TIME OUTDOORS, WEAR LIGHTWEIGHT AND LOOSE FITTING CLOTHING. TRY TO
LIMIT STRENUOUS ACTIVITIES TO EARLY MORNING OR EVENING. TAKE ACTION
WHEN YOU SEE SYMPTOMS OF HEAT EXHAUSTION AND HEAT STROKE.
MTZ301-302-020600-
/O.CON.KTFX.HW.W.0028.260802T0000Z-260802T1800Z/
EAST GLACIER PARK REGION-NORTHERN HIGH PLAINS-
INCLUDING THE CITIES OF BABB, EAST GLACIER PARK, MARIAS PASS, SAINT
MARY, LOGAN PASS, HEART BUTTE, DUPUYER, KIOWA, AND BROWNING
900 AM MDT SAT AUG 1 2026
...HIGH WIND WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO NOON
MDT SUNDAY...
* WHAT...WEST WINDS 30 TO 40 MPH, WITH GUSTS UP TO 60 MPH EXPECTED.
ISOLATED WIND GUSTS UP TO 75 MPH ALONG THE IMMEDIATE EASTERN SLOPES
OF THE ROCKY MOUNTAIN FRONT.
* WHERE...EAST GLACIER PARK REGION ZONE, AND NORTHERN HIGH PLAINS.
* WHEN...FROM 6 PM THIS EVENING TO NOON MDT SUNDAY.
* IMPACTS...DAMAGING WINDS WILL BLOW DOWN TREES AND POWER LINES.
TRAVEL COULD BE DIFFICULT, ESPECIALLY FOR HIGH PROFILE VEHICLES.
RECREATIONISTS SHOULD BE AWARE OF ANY TREES THAT COULD FALL WHILE
ESTABLISHING CAMPS OR HIKING.
* ADDITIONAL DETAILS...THE MOST INTENSE WINDS ARE LIKELY TO OCCUR
BETWEEN 9 PM SATURDAY AND 6 AM SUNDAY WHEN MOUNTAIN WAVE ACTIVITY
WILL BE AT ITS PEAK.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
PEOPLE ARE URGED TO SECURE LOOSE OBJECTS THAT COULD BE BLOWN AROUND
OR DAMAGED BY THE WIND.
MTZ304>306-309-316-318-319-321>324-328-020600-
/O.CON.KTFX.HT.Y.0004.260801T1800Z-260802T0900Z/
EASTERN TOOLE AND LIBERTY-HILL COUNTY-NORTHERN BLAINE COUNTY-
EASTERN PONDERA AND EASTERN TETON-GATES OF THE MOUNTAINS-SNOWY
AND JUDITH MOUNTAINS-HELENA VALLEY-MEAGHER COUNTY VALLEYS-ELKHORN
AND BOULDER MOUNTAINS-CANYON FERRY AREA-MISSOURI HEADWATERS-
BEAVERHEAD AND WESTERN MADISON BELOW 6000FT-
INCLUDING THE CITIES OF WOLF CREEK, LOTHAIR, BRADY, BOULDER, JOPLIN,
CORBIN, WATERLOO, CANYON CREEK, CRAIG, BANNACK, HARRISON, HELENA,
PONY, CHESTER, TOWNSEND, GLEN, DILLON, FORT BELKNAP, RINGLING,
MONTANA CITY, CHINOOK, ZURICH, CONRAD, HOGELAND, THREE FORKS, WILLOW
CREEK, MARTINSDALE, LEDGER, GALATA, CHECKERBOARD, WINSTON, DEVON,
WHITEHALL, HARLEM, WHITE SULPHUR SPRINGS, CLANCY, TOSTON, SHELBY, ELK
PARK PASS, WICKES, HOMESTAKE PASS, HAVRE, AND WHITLASH
900 AM MDT SAT AUG 1 2026
...HEAT ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO 3 AM MDT
SUNDAY...
* WHAT...HIGH TEMPERATURES UP TO 102 DEGREES EXPECTED.
* WHERE...PORTIONS OF CENTRAL, NORTH CENTRAL, AND SOUTHWEST MONTANA.
* WHEN...FROM NOON TODAY TO 3 AM MDT SUNDAY.
* IMPACTS...HOT TEMPERATURES MAY CAUSE HEAT ILLNESSES.
* ADDITIONAL DETAILS...THE MOST INTENSE WINDS ARE LIKELY TO OCCUR
BETWEEN 12 AM AND 8 AM SUNDAY WHEN MOUNTAIN WAVE ACTIVITY WILL BE
AT ITS PEAK.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
DO NOT LEAVE YOUNG CHILDREN AND PETS IN UNATTENDED VEHICLES. CAR
INTERIORS WILL REACH LETHAL TEMPERATURES IN A MATTER OF MINUTES.
DRINK PLENTY OF FLUIDS, STAY IN AN AIR-CONDITIONED ROOM, STAY OUT OF
THE SUN, AND CHECK UP ON RELATIVES AND NEIGHBORS. IF YOU MUST SPEND
TIME OUTDOORS, WEAR LIGHTWEIGHT AND LOOSE FITTING CLOTHING. TRY TO
LIMIT STRENUOUS ACTIVITIES TO EARLY MORNING OR EVENING. TAKE ACTION
WHEN YOU SEE SYMPTOMS OF HEAT EXHAUSTION AND HEAT STROKE.
ML
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