019
WWUS45 KTFX 111831
WSWTFX
URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE GREAT FALLS MT
1231 PM MDT WED MAR 11 2026
MTZ301-307-121215-
/O.NEW.KTFX.BZ.W.0001.260312T0000Z-260312T2100Z/
/O.EXT.KTFX.WS.W.0003.260312T2100Z-260315T0000Z/
/O.CON.KTFX.WW.Y.0014.000000T0000Z-260312T0000Z/
EAST GLACIER PARK REGION-SOUTHERN ROCKY MOUNTAIN FRONT-
INCLUDING THE FOLLOWING LOCATIONS: MARIAS PASS, KIOWA, ROGERS
PASS, BABB, SAINT MARY, EAST GLACIER PARK, AND LOGAN PASS
1231 PM MDT WED MAR 11 2026
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING...
...BLIZZARD WARNING IN EFFECT FROM 6 PM THIS EVENING TO 3 PM MDT
THURSDAY...
...WINTER STORM WARNING NOW IN EFFECT FROM 3 PM THURSDAY TO 6 PM MDT
SATURDAY...
* WHAT...SNOW THROUGH THIS AFTERNOON WITH ADDITIONAL ACCUMULATIONS
UP TO TWO INCHES. FOR THE BLIZZARD WARNING, BLIZZARD CONDITIONS
EXPECTED TO DEVELOP TONIGHT AS SNOWFALL RATES AND WIND SPEEDS
INCREASE WITH POOREST VISIBILITY IN PERIODS OF MODERATE TO HEAVY
SNOWFALL AND STRONG WINDS THURSDAY MORNING. WIND SPEEDS DECREASE
LATE THURSDAY THROUGH FRIDAY BUT PERIODS OF LIGHT TO MODERATE
SNOWFALL WILL PERSIST THROUGH SATURDAY. TOTAL SNOW ACCUMULATIONS
BETWEEN 1 AND 3 FEET ARE EXPECTED BY SATURDAY. WINDS GUST AS HIGH
AS 70 MPH LATE TONIGHT THROUGH THURSDAY MORNING.
* WHERE...THE CONTINENTAL DIVIDE ALONG THE ROCKY MOUNTAIN FRONT.
* WHEN...FOR THE WINTER WEATHER ADVISORY, UNTIL 6 PM MDT THIS
EVENING. FOR THE BLIZZARD WARNING, FROM 6 PM THIS EVENING TO 3 PM
MDT THURSDAY. FOR THE WINTER STORM WARNING, FROM 3 PM THURSDAY TO
6 PM MDT SATURDAY.
* IMPACTS...TRAVEL COULD BE VERY DIFFICULT OR IMPOSSIBLE OVER MARIAS
PASS AND ROGERS PASS LATE TONIGHT THROUGH THURSDAY MORNING.
* ADDITIONAL DETAILS...WHITEOUT CONDITIONS ARE LIKELY AND MAY MAKE
TRAVEL TREACHEROUS AND POTENTIALLY LIFE-THREATENING, ESPECIALLY
FROM 12 AM THURSDAY THROUGH 8 AM THURSDAY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
REMEMBER, A BLIZZARD WARNING MEANS THAT THERE IS AT LEAST AN 80%
CHANCE OF SEEING BLIZZARD CONDITIONS FOR AT LEAST 3 HOURS DURING THE
WATCH PERIOD.
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.
MTZ327-121215-
/O.UPG.KTFX.WW.Y.0014.260312T0000Z-260313T1800Z/
/O.EXB.KTFX.WS.W.0003.260312T0000Z-260313T1800Z/
NORTHWEST BEAVERHEAD COUNTY-
INCLUDING THE FOLLOWING LOCATIONS: CHIEF JOSEPH PASS, BIG HOLE
PASS, WISDOM, DEWEY, AND WISE RIVER
1231 PM MDT WED MAR 11 2026
...WINTER STORM WARNING IN EFFECT FROM 6 PM THIS EVENING TO NOON MDT
FRIDAY...
* WHAT...TOTAL SNOW ACCUMULATIONS BETWEEN 7 AND 14 INCHES NEAR CHIEF
JOSEPH PASS AND 4 TO 7 INCHES NEAR BIG HOLE PASS. SNOW
ACCUMULATIONS BETWEEN 1 AND 5 INCHES ELSEWHERE. WINDS GUSTING OVER
60 MPH AT TIMES ON THURSDAY.
* WHERE...NORTHWEST BEAVERHEAD COUNTY.
* WHEN...FROM 6 PM THIS EVENING TO NOON MDT FRIDAY.
* 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. VERY STRONG WINDS
COULD CAUSE EXTENSIVE 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.
MTZ315-121215-
/O.EXB.KTFX.WS.W.0003.260312T0000Z-260313T1800Z/
UPPER BLACKFOOT AND MACDONALD PASS-
INCLUDING THE FOLLOWING LOCATIONS: FLESHER PASS, LINCOLN,
MACDONALD PASS, AND MARYSVILLE
1231 PM MDT WED MAR 11 2026
...WINTER STORM WARNING IN EFFECT FROM 6 PM THIS EVENING TO NOON MDT
FRIDAY...
* WHAT...SNOW AND BLOWING SNOW EXPECTED. TOTAL SNOW ACCUMULATIONS
BETWEEN 3 AND 6 INCHES IN THE UPPER BLACKFOOT VALLEY AND LINCOLN
AREA WITH 6 TO 12 INCHES OVER FLESHER PASS AND MACDONALD PASS.
WINDS GUSTING AS HIGH AS 65 MPH MAY CREATE SIGNIFICANT VISIBILITY
REDUCTIONS IN BLOWING SNOW THURSDAY.
* WHERE...UPPER BLACKFOOT AND MACDONALD PASS.
* WHEN...FROM 6 PM THIS EVENING TO NOON MDT FRIDAY.
* IMPACTS...TRAVEL COULD BE VERY DIFFICULT AND TIRE CHAINS MAY BE
REQUIRED FOR SOME VEHICLES.
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.
MTZ302-308-121215-
/O.NEW.KTFX.WW.Y.0015.260312T0900Z-260312T2100Z/
/O.CON.KTFX.WS.A.0002.260313T0000Z-260315T0000Z/
NORTHERN HIGH PLAINS-SOUTHERN HIGH PLAINS-
INCLUDING THE FOLLOWING LOCATIONS: BROWNING, PENDROY, DUPUYER,
CHOTEAU, BYNUM, AND HEART BUTTE
1231 PM MDT WED MAR 11 2026
...WINTER WEATHER ADVISORY IN EFFECT FROM 3 AM TO 3 PM MDT
THURSDAY...
...WINTER STORM WATCH REMAINS IN EFFECT FROM THURSDAY EVENING
THROUGH SATURDAY AFTERNOON...
* WHAT...FOR THE WINTER WEATHER ADVISORY, SNOW AND BLOWING SNOW
EXPECTED. TOTAL SNOW ACCUMULATIONS UP TO TWO INCHES. WINDS GUSTING
AS HIGH AS 75 MPH WILL CREATE REDUCED VISIBILITY. FOR THE WINTER
STORM WATCH, HEAVY SNOW POSSIBLE. TOTAL SNOW ACCUMULATIONS BETWEEN
9 AND 19 INCHES POSSIBLE. WINDS COULD GUST AS HIGH AS 55 MPH.
* WHERE...THE FOOTHILLS AND PLAINS ADJACENT TO THE ROCKY MOUNTAIN
FRONT.
* WHEN...FOR THE WINTER WEATHER ADVISORY, FROM 3 AM TO 3 PM MDT
THURSDAY. FOR THE WINTER STORM WATCH, FROM THURSDAY EVENING
THROUGH SATURDAY AFTERNOON.
* IMPACTS...TRAVEL COULD BE VERY DIFFICULT TO DANGEROUS WITH FALLING
AND BLOWING SNOW SIGNIFICANTLY REDUCING VISIBILITY AT TIMES.
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.
MONITOR THE LATEST FORECASTS FOR UPDATES ON THIS SITUATION.
MTZ303-304-309-310-312-121215-
/O.CON.KTFX.WS.A.0002.260313T0000Z-260315T0000Z/
EASTERN GLACIER, WESTERN TOOLE, AND CENTRAL PONDERA-EASTERN TOOLE
AND LIBERTY-EASTERN PONDERA AND EASTERN TETON-WESTERN AND CENTRAL
CHOUTEAU COUNTY-CASCADE COUNTY BELOW 5000FT-
INCLUDING THE FOLLOWING LOCATIONS: CONRAD, DEVON, SHELBY, GALATA,
JOPLIN, BRADY, FLOWEREE, CARTER, LEDGER, LOTHAIR, GREAT FALLS,
SANTA RITA, FORT BENTON, ETHRIDGE, WHITLASH, CUT BANK, AND
CHESTER
1231 PM MDT WED MAR 11 2026
...WINTER STORM WATCH REMAINS IN EFFECT FROM THURSDAY EVENING
THROUGH SATURDAY AFTERNOON...
* WHAT...HEAVY SNOW POSSIBLE. TOTAL SNOW ACCUMULATIONS BETWEEN 6 AND
12 INCHES POSSIBLE.
* WHERE...THE INTERSTATE 15 CORRIDOR NORTH OF POWER, EASTERN TOOLE
AND LIBERTY COUNTIES, WESTERN AND CENTRAL CHOUTEAU COUNTY, AND
CASCADE COUNTY BELOW 5000FT.
* WHEN...FROM THURSDAY EVENING THROUGH SATURDAY AFTERNOON.
* IMPACTS...TRAVEL COULD BE VERY DIFFICULT WITH FALLING AND BLOWING
SNOW SIGNIFICANTLY REDUCING VISIBILITY AT TIMES.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
MONITOR THE LATEST FORECASTS FOR UPDATES ON THIS SITUATION.
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.
MTZ311-313-314-317-318-121215-
/O.CON.KTFX.WS.A.0002.260313T0000Z-260315T0000Z/
BEARS PAW MOUNTAINS AND SOUTHERN BLAINE-JUDITH BASIN COUNTY AND
JUDITH GAP-FERGUS COUNTY BELOW 4500FT-LITTLE BELT AND HIGHWOOD
MOUNTAINS-SNOWY AND JUDITH MOUNTAINS-
INCLUDING THE FOLLOWING LOCATIONS: HILGER, KINGS HILL PASS,
GEYSER, STANFORD, LEWISTOWN, MONARCH, NEIHART, ROCKY BOY,
MOCCASIN, BENCHLAND, RAYNESFORD, WINDHAM, AND HOBSON
1231 PM MDT WED MAR 11 2026
...WINTER STORM WATCH REMAINS IN EFFECT FROM THURSDAY EVENING
THROUGH SATURDAY AFTERNOON...
* WHAT...HEAVY SNOW POSSIBLE. TOTAL SNOW ACCUMULATIONS BETWEEN 8 AND
18 INCHES POSSIBLE.
* WHERE...BEARS PAW, HIGHWOOD, LITTLE BELT, AND SNOWY MOUNTAINS,
JUDITH BASIN COUNTY AND JUDITH GAP, AND FERGUS COUNTY BELOW 4500FT.
* WHEN...FROM THURSDAY EVENING THROUGH SATURDAY AFTERNOON.
* IMPACTS...TRAVEL COULD BE VERY DIFFICULT TO DANGEROUS WITH FALLING
AND BLOWING SNOW SIGNIFICANTLY REDUCING VISIBILITY AT TIMES. THOSE
IN THE BACKCOUNTRY SHOULD ENSURE THEY ARE PREPARED FOR DANGEROUS
CONDITIONS.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
MONITOR THE LATEST FORECASTS FOR UPDATES ON THIS SITUATION.
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.
HOENISCH
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