143
WWUS45 KTFX 122354
WSWTFX
URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE GREAT FALLS MT
554 PM MDT THU MAR 12 2026
MTZ302-308-131500-
/O.EXP.KTFX.WW.Y.0015.000000T0000Z-260313T0000Z/
/O.CON.KTFX.WS.W.0003.260313T0000Z-260315T0000Z/
NORTHERN HIGH PLAINS-SOUTHERN HIGH PLAINS-
INCLUDING THE FOLLOWING LOCATIONS: DUPUYER, BROWNING, CHOTEAU,
PENDROY, HEART BUTTE, AND BYNUM
554 PM MDT THU MAR 12 2026
..WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MDT SATURDAY
..WINTER WEATHER ADVISORY WILL EXPIRE AT 6 PM MDT THIS EVENING
* WHAT...SNOW REDEVELOPS TONIGHT WITH PERIODS OF MODERATE TO HEAVY
SNOW EXPECTED LATE FRIDAY AND SATURDAY. TOTAL NEW SNOW
ACCUMULATIONS BETWEEN 6 AND 12 INCHES. WINDS GUSTING AS HIGH AS 45
MPH.
* WHERE...THE FOOTHILLS AND PLAINS ADJACENT TO THE ROCKY MOUNTAIN
FRONT.
* WHEN...UNTIL 6 PM MDT SATURDAY.
* IMPACTS...TRAVEL COULD BE VERY DIFFICULT TO IMPOSSIBLE. WIDESPREAD
BLOWING SNOW COULD SIGNIFICANTLY REDUCE VISIBILITY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IF YOU MUST TRAVEL, KEEP AN EXTRA FLASHLIGHT, FOOD, AND WATER IN
YOUR VEHICLE IN CASE OF AN EMERGENCY. THE LATEST ROAD CONDITIONS CAN
BE OBTAINED BY CALLING 5 1 1 OR VISITING THE MDT ROAD REPORT WEBSITE.
MTZ301-307-131500-
/O.CON.KTFX.WS.W.0003.000000T0000Z-260315T0000Z/
EAST GLACIER PARK REGION-SOUTHERN ROCKY MOUNTAIN FRONT-
INCLUDING THE FOLLOWING LOCATIONS: ROGERS PASS, MARIAS PASS,
LOGAN PASS, BABB, EAST GLACIER PARK, KIOWA, AND SAINT MARY
554 PM MDT THU MAR 12 2026
..WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MDT SATURDAY
* WHAT...SNOW REDEVELOPS TONIGHT WITH PERIODS OF MODERATE TO HEAVY
SNOW AT TIMES FRIDAY THROUGH SATURDAY. ADDITIONAL SNOW
ACCUMULATIONS BETWEEN 9 AND 18 INCHES. WINDS GUSTING AS HIGH AS 40
MPH.
* WHERE...THE CONTINENTAL DIVIDE ALONG THE ROCKY MOUNTAIN FRONT.
* WHEN...UNTIL 6 PM MDT SATURDAY.
* IMPACTS...TRAVEL COULD BE VERY DIFFICULT OR IMPOSSIBLE OVER MARIAS
PASS AND ROGERS PAS TONIGHT THROUGH SATURDAY AFTERNOON.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IF YOU MUST TRAVEL, KEEP AN EXTRA FLASHLIGHT, FOOD, AND WATER IN
YOUR VEHICLE IN CASE OF AN EMERGENCY. THE LATEST ROAD CONDITIONS CAN
BE OBTAINED BY CALLING 5 1 1 OR VISITING THE MDT ROAD REPORT WEBSITE.
REMEMBER, A WINTER STORM WARNING MEANS THAT THERE IS AT LEAST AN 80%
CHANCE OF IMPACTFUL WINTER WEATHER CONDITIONS DURING THE WARNING
PERIOD.
MTZ315-327-131500-
/O.CON.KTFX.WS.W.0003.000000T0000Z-260315T0000Z/
UPPER BLACKFOOT AND MACDONALD PASS-NORTHWEST BEAVERHEAD COUNTY-
INCLUDING THE FOLLOWING LOCATIONS: MACDONALD PASS, LINCOLN, BIG
HOLE PASS, DEWEY, MARYSVILLE, WISE RIVER, FLESHER PASS, CHIEF
JOSEPH PASS, AND WISDOM
554 PM MDT THU MAR 12 2026
..WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MDT SATURDAY
* WHAT...SNOW REDEVELOPS TONIGHT WITH PERIODS OF MODERATE TO HEAVY
SNOW EXPECTED AT TIMES FRIDAY THROUGH SATURDAY. ADDITIONAL SNOW
ACCUMULATIONS BETWEEN 9 AND 18 INCHES. WINDS GUSTING AS HIGH AS 40
MPH.
* WHERE...UPPER BLACKFOOT AND MACDONALD PASS AND NORTHWEST
BEAVERHEAD COUNTY.
* WHEN...UNTIL 6 PM MDT SATURDAY.
* IMPACTS...TRAVEL COULD BE VERY DIFFICULT AND TIRE CHAINS MAY BE
REQUIRED FOR SOME VEHICLES. THOSE IN THE BACKCOUNTRY SHOULD ENSURE
THEY ARE PREPARED FOR DANGEROUS CONDITIONS. STRONG WINDS COULD
CAUSE TREE DAMAGE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IF YOU MUST TRAVEL, KEEP AN EXTRA FLASHLIGHT, FOOD, AND WATER IN
YOUR VEHICLE IN CASE OF AN EMERGENCY. THE LATEST ROAD CONDITIONS CAN
BE OBTAINED BY CALLING 5 1 1 OR VISITING THE MDT ROAD REPORT WEBSITE.
TO SEE A GRAPHICAL REPRESENTATION OF THE DEGREE OF STRESS ON YOUNG
LIVESTOCK PLEASE VISIT OUR WEBPAGE AND SELECT LOCAL PROGRAMS THEN
COLD AIR ADVISORY FOR NEWBORN LIVESTOCK.
REMEMBER, A WINTER STORM WARNING MEANS THAT THERE IS AT LEAST AN 80%
CHANCE OF IMPACTFUL WINTER WEATHER CONDITIONS DURING THE WARNING
PERIOD.
MTZ317-318-131500-
/O.CON.KTFX.WS.W.0003.000000T0000Z-260315T0000Z/
LITTLE BELT AND HIGHWOOD MOUNTAINS-SNOWY AND JUDITH MOUNTAINS-
INCLUDING THE FOLLOWING LOCATIONS: KINGS HILL PASS, MONARCH, AND
NEIHART
554 PM MDT THU MAR 12 2026
..WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MDT SATURDAY
* WHAT...PERIODS OF MODERATE TO HEAVY SNOW EXPECTED. TOTAL SNOW
ACCUMULATIONS BETWEEN 1 AND 3 FEET. WINDS GUSTING AS HIGH AS 35
MPH.
* WHERE...THE HIGHWOOD, LITTLE BELT, JUDITH, AND SNOWY MOUNTAINS.
* WHEN...UNTIL 6 PM MDT SATURDAY.
* IMPACTS...TRAVEL COULD BE VERY DIFFICULT AND TIRE CHAINS MAY BE
REQUIRED FOR SOME VEHICLES. THOSE IN THE BACKCOUNTRY SHOULD ENSURE
THEY ARE PREPARED FOR DANGEROUS CONDITIONS.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IF YOU MUST TRAVEL, KEEP AN EXTRA FLASHLIGHT, FOOD, AND WATER IN
YOUR VEHICLE IN CASE OF AN EMERGENCY. THE LATEST ROAD CONDITIONS CAN
BE OBTAINED BY CALLING 5 1 1 OR VISITING THE MDT ROAD REPORT WEBSITE.
TO SEE A GRAPHICAL REPRESENTATION OF THE DEGREE OF STRESS ON YOUNG
LIVESTOCK PLEASE VISIT OUR WEBPAGE AND SELECT LOCAL PROGRAMS THEN
COLD AIR ADVISORY FOR NEWBORN LIVESTOCK.
MTZ309-312-316-131500-
/O.CON.KTFX.WS.W.0003.260313T0000Z-260315T0000Z/
EASTERN PONDERA AND EASTERN TETON-CASCADE COUNTY BELOW 5000FT-
GATES OF THE MOUNTAINS-
INCLUDING THE FOLLOWING LOCATIONS: WOLF CREEK, CONRAD, BRADY,
LEDGER, CRAIG, CANYON CREEK, AND GREAT FALLS
554 PM MDT THU MAR 12 2026
..WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MDT SATURDAY
* WHAT...SNOW DEVELOPING TONIGHT WITH PERIODS OF MODERATE SNOWFALL
EXPECTED LATE FRIDAY THROUGH EARLY SATURDAY. TOTAL SNOW
ACCUMULATIONS BETWEEN 6 AND 10 INCHES. WINDS GUSTING AS HIGH AS 35
MPH.
* WHERE...EASTERN PONDERA AND EASTERN TETON COUNTIES, CASCADE COUNTY
BELOW 5000FT, AND GATES OF THE MOUNTAINS.
* WHEN...UNTIL 6 PM MDT SATURDAY.
* IMPACTS...TRAVEL COULD BE DIFFICULT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IF YOU MUST TRAVEL, KEEP AN EXTRA FLASHLIGHT, FOOD, AND WATER IN
YOUR VEHICLE IN CASE OF AN EMERGENCY. THE LATEST ROAD CONDITIONS CAN
BE OBTAINED BY CALLING 5 1 1 OR VISITING THE MDT ROAD REPORT WEBSITE.
MTZ313-314-131500-
/O.CON.KTFX.WS.W.0003.260313T0000Z-260315T0000Z/
JUDITH BASIN COUNTY AND JUDITH GAP-FERGUS COUNTY BELOW 4500FT-
INCLUDING THE FOLLOWING LOCATIONS: STANFORD, BENCHLAND, GEYSER,
HOBSON, WINDHAM, HILGER, RAYNESFORD, LEWISTOWN, AND MOCCASIN
554 PM MDT THU MAR 12 2026
..WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MDT SATURDAY
* WHAT...SNOW DEVELOPING TONIGHT WITH PERIODS OF MODERATE SNOWFALL
EXPECTED LATE FRIDAY THROUGH EARLY SATURDAY. TOTAL SNOW
ACCUMULATIONS BETWEEN 10 AND 20 INCHES. WINDS GUSTING AS HIGH AS
40 MPH.
* WHERE...FERGUS COUNTY BELOW 4500FT AND JUDITH BASIN COUNTY AND
JUDITH GAP.
* WHEN...UNTIL 6 PM MDT SATURDAY.
* IMPACTS...TRAVEL COULD BE VERY DIFFICULT TO IMPOSSIBLE. PATCHY
BLOWING SNOW COULD SIGNIFICANTLY REDUCE VISIBILITY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IF YOU MUST TRAVEL, KEEP AN EXTRA FLASHLIGHT, FOOD, AND WATER IN
YOUR VEHICLE IN CASE OF AN EMERGENCY. THE LATEST ROAD CONDITIONS CAN
BE OBTAINED BY CALLING 5 1 1 OR VISITING THE MDT ROAD REPORT WEBSITE.
TO SEE A GRAPHICAL REPRESENTATION OF THE DEGREE OF STRESS ON YOUNG
LIVESTOCK PLEASE VISIT OUR WEBPAGE AND SELECT LOCAL PROGRAMS THEN
COLD AIR ADVISORY FOR NEWBORN LIVESTOCK.
MTZ319>322-131500-
/O.CON.KTFX.WS.W.0003.260313T0000Z-260315T0000Z/
HELENA VALLEY-BIG BELT, BRIDGER AND CASTLE MOUNTAINS-MEAGHER
COUNTY VALLEYS-ELKHORN AND BOULDER MOUNTAINS-
INCLUDING THE FOLLOWING LOCATIONS: HOMESTAKE PASS, BOZEMAN PASS,
CLANCY, CORBIN, TRIDENT, HELENA, CHECKERBOARD, WICKES, BOULDER,
MARTINSDALE, MONTANA CITY, RINGLING, BATTLE RIDGE PASS, WHITE
SULPHUR SPRINGS, MAUDLOW, ELK PARK PASS, AND DEEP CREEK PASS
554 PM MDT THU MAR 12 2026
..WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MDT SATURDAY
* WHAT...PERIODS OF MODERATE TO HEAVY SNOW EXPECTED. TOTAL SNOW
ACCUMULATIONS BETWEEN 8 AND 12 INCHES WITH UP TO 18 INCHES AT THE
HIGHEST ELEVATIONS. WINDS GUSTING AS HIGH AS 35 MPH.
* WHERE...BIG BELT, BRIDGER AND CASTLE MOUNTAINS, ELKHORN AND
BOULDER MOUNTAINS, HELENA VALLEY, AND MEAGHER COUNTY VALLEYS.
* WHEN...UNTIL 6 PM MDT SATURDAY.
* IMPACTS...TRAVEL COULD BE VERY DIFFICULT AND TIRE CHAINS MAY BE
REQUIRED FOR SOME VEHICLES. THOSE IN THE BACKCOUNTRY SHOULD ENSURE
THEY ARE PREPARED FOR DANGEROUS CONDITIONS. THE HAZARDOUS
CONDITIONS COULD IMPACT THE THURSDAY EVENING AND FRIDAY MORNING
COMMUTES.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IF YOU MUST TRAVEL, KEEP AN EXTRA FLASHLIGHT, FOOD, AND WATER IN
YOUR VEHICLE IN CASE OF AN EMERGENCY. THE LATEST ROAD CONDITIONS CAN
BE OBTAINED BY CALLING 5 1 1 OR VISITING THE MDT ROAD REPORT WEBSITE.
TO SEE A GRAPHICAL REPRESENTATION OF THE DEGREE OF STRESS ON YOUNG
LIVESTOCK PLEASE VISIT OUR WEBPAGE AND SELECT LOCAL PROGRAMS THEN
COLD AIR ADVISORY FOR NEWBORN LIVESTOCK.
MTZ303-304-310-311-131500-
/O.CON.KTFX.WW.Y.0016.260313T0000Z-260315T0000Z/
EASTERN GLACIER, WESTERN TOOLE, AND CENTRAL PONDERA-EASTERN TOOLE
AND LIBERTY-WESTERN AND CENTRAL CHOUTEAU COUNTY-BEARS PAW
MOUNTAINS AND SOUTHERN BLAINE-
INCLUDING THE FOLLOWING LOCATIONS: WHITLASH, FLOWEREE, CUT BANK,
GALATA, SANTA RITA, CHESTER, JOPLIN, LOTHAIR, FORT BENTON,
CARTER, ETHRIDGE, DEVON, ROCKY BOY, AND SHELBY
554 PM MDT THU MAR 12 2026
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT
SATURDAY...
* WHAT...PERIODS OF SNOW EXPECTED TONIGHT THROUGH SATURDAY. TOTAL
SNOW ACCUMULATIONS BETWEEN 3 AND 9 INCHES. WINDS GUSTING AS HIGH
AS 35 MPH.
* WHERE...EASTERN GLACIER, WESTERN TOOLE, AND CENTRAL PONDERA
COUNTIES, EASTERN TOOLE AND LIBERTY COUNTIES, WESTERN AND CENTRAL
CHOUTEAU COUNTY, AND BEARS PAW MOUNTAINS AND SOUTHERN BLAINE.
* WHEN...UNTIL 6 PM MDT SATURDAY.
* IMPACTS...TRAVEL COULD BE VERY DIFFICULT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SLOW DOWN AND USE CAUTION WHILE TRAVELING. THE LATEST ROAD
CONDITIONS CAN BE OBTAINED BY CALLING 5 1 1 OR VISITING THE MDT ROAD
REPORT WEBSITE.
TO SEE A GRAPHICAL REPRESENTATION OF THE DEGREE OF STRESS ON YOUNG
LIVESTOCK PLEASE VISIT OUR WEBPAGE AND SELECT LOCAL PROGRAMS THEN
COLD AIR ADVISORY FOR NEWBORN LIVESTOCK.
REMEMBER, A WINTER WEATHER ADVISORY MEANS THAT THERE IS AT LEAST AN
80% CHANCE OF MINOR IMPACTS DUE TO WINTER WEATHER CONDITIONS DURING
THE ADVISORY PERIOD. PATCHY BLOWING SNOW COULD SIGNIFICANTLY REDUCE
VISIBILITY.
WILSON
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