A strong Pacific weather system brought gusty winds to North Central Montana. Wind gusts in excess of 80 mph were reported.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS TFX wrote it up.
A strong Pacific weather system brought gusty winds to North Central Montana. Wind gusts in excess of 80 mph were reported.
The local office's own words before the first event, 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 the first event at Nov 12, 9:05 AM MST, 1 hour 23 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GREAT FALLS MT 905 AM MST MON NOV 12 2007 .DISCUSSION... UPDATE FORTHCOMING. HAVE MADE MINOR ADJUSTMENTS TO THE SKY GRIDS. HIGH WINDS CONTINUE TO BE THE MAIN PLAYER TODAY THROUGH TUESDAY. THE SURFACE GRADIENT WILL CONTINUE TO GRADUALLY TIGHTEN THIS AFTERNOON AND WIND SPEEDS WILL INCREASE. SCATTERED RAIN AND SNOW WILL DEVELOP TONIGHT AS A COLD FRONT PUSHES ACROSS THE AREA. CURRENT HIGHLIGHTS WILL CONTINUE. EMANUEL && .AVIATION... UPDATED 1435Z. THE MAIN AVIATION PROBLEM WILL BE WINDS THROUGH 12Z TUESDAY. GUSTY SOUTHWEST WINDS WILL CONTINUE TO INCREASE THROUGH THE DAY UNTIL THE PASSAGE OF A COLD FRONT TONIGHT. IT LOOKS LIKE THE COLD FRONT WILL BE ROUGHLY NEAR A KCTB-KMSO LINE AT 06Z AND NR A KISN-KBIL LINE AT 12Z. NEAR THE COLD FRONT EXPECT SUSTAINED WINDS 30 TO 40 KNOTS BUT 40 TO 50 KNOTS ALONG THE ROCKY MOUNTAIN FRONT. WIND GUSTS WILL LOCALLY REACH NEAR 75 KNOTS ALONG THE ROCKY MOUNTAIN FRONT. BLANK && .PREV DISCUSSION...ISSUED 340 AM MST MON NOV 12 2007 TODAY THROUGH WEDNESDAY...NORTHERN PORTION OF MY FORECAST AREA REMAINS IN THE BULLS EYE OF A STRONG WIND EVENT TODAY THROUGH LATE TUESDAY AFTERNOON. WINDS AT MOUNTAIN TOP LEVEL IN THE GLACIER PARK REGION WILL START OUT AT 50 TO 60 KNOTS THIS MORNING AND WILL RAPIDLY INCREASE THROUGH THE DAY TOPPING OUT AT NEARLY 90 KNOTS BY LATE AFTERNOON. WIND SPEEDS ALONE LOOK FAVORABLE FOR A PROLONGED WIND EVENT...BUT THESE WILL BE COUPLED WITH ALL THE INGREDIENTS FOR A CLASSIC DOWNSLOPE WINDSTORM...INCLUDING A POWERFUL UPPER LEVEL JET AND OTHER FASCINATING PARAMETERS THAT ARE SO TECHNICAL IM NOT ALLOWED TO TALK ABOUT THEM IN A PUBLIC DISCUSSION. SUFFICE IT TO SAY THAT THE HIGH WIND WARNINGS LOOK GOOD AND I WILL GO AHEAD AND UPGRADE THE WATCH IN MY EASTERN ZONES TO A WARNING AS WELL. IN ADDITION TO THE WIND THE POWERFUL WESTERLY FLOW ALOFT WILL BRING ABUNDANT PACIFIC MOISTURE FOR OROGRAPHIC SNOWS OVER MY WESTERN AND SOUTHWEST MOUNTAINS. SINCE THERE IS A POTENTIAL FOR SIGNIFICANT SNOWS IN THE HIGHER ELEVATIONS...AS WELL AS BLOWING AND DRIFTING SNOW THROUGH THE PASSES...I WILL ALSO ISSUE A WINTER STORM WARNING FOR THE ROCKY MOUNTAIN FRONT SOUTH TO MACDONALD PASS TONIGHT. AN UPPER LEVEL SHORTWAVE RIDGE WILL MOVE OVER MONTANA IN THE WAKE OF THE STORM SYSTEM FOR RELATIVELY QUIET WEATHER ON WEDNESDAY. MPJ WEDNESDAY NIGHT THROUGH SATURDAY NIGHT...LOW AMPLITUDE UPPER LEVEL HIGH PRESSURE RIDGE PERSISTS OVER REGION FOR GENERALLY MILD CONDITIONS. SEVERAL MOIST DISTURBANCES SWEEP THROUGH RIDGE FLATTENING IT PERIODICALLY AND PRODUCING A CHANCE OF SNOW SHOWERS OVER THE ROCKIES BUT ONLY ISOLATED SHOWERS OVER REMAINING MOUNTAINS. WINDS PICK UP SOME THURSDAY...PARTICULARLY ALONG THE FRONT RANGE OF THE ROCKIES...BUT REMAIN WELL BELOW WARNING CRITERIA. WINDS DECREASE AGAIN FRIDAY. WITH MEAN RIDGE OVER AREA TEMPERATURES WILL BE ABOVE NORMAL THROUGH THE PERIOD. BRITTON SUNDAY AND MONDAY...MODELS SHOW A LONG WAVE RIDGE OVER THE INTER-MOUNTAIN WEST...FOR WESTERLY FLOW ALOFT ACROSS THE REGION. THUS...WILL GO WITH ISOLATED SHOWERS OVER THE PLAINS AND SCATTERED SNOW SHOWERS OVER THE SOUTHWEST AND ALONG THE EAST SLOPES OF THE ROCKIES. TEMPERATURES WILL BE CLOSE TO SEASONAL AVERAGE. WILLIAMSON DC && .PRELIMINARY POINT TEMPS/POPS... GTF 56 37 46 26 / 0 20 0 0 CTB 52 30 43 25 / 0 20 0 10 HLN 55 36 48 26 / 0 50 30 10 BZN 56 37 49 24 / 0 10 50 10 WEY 39 31 37 14 / 0 50 70 20 DLN 51 32 43 22 / 0 20 50 10 HVR 58 34 52 27 / 0 10 0 0 LWT 56 37 46 25 / 0 20 10 10 && .TFX WATCHES/WARNINGS/ADVISORIES... HIGH WIND WARNING FROM 5 PM THIS AFTERNOON TO 6 PM MST TUESDAY FOR MTZ011>014-044>047-049>051. HIGH WIND WARNING FROM 11 AM THIS MORNING TO 6 PM MST TUESDAY FOR MTZ010-048. WINTER STORM WARNING FROM 6 PM THIS EVENING TO 6 AM MST TUESDAY FOR MTZ009-014-048. HIGH WIND WARNING UNTIL 6 PM MST TUESDAY FOR MTZ009. && SHORT TERM...EMANUEL/MPJ LONG TERM...BRITTON/WILLIAMSON DC AVIATION...BLANK WEATHER.GOV/GREATFALLS
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GREAT FALLS MT 512 AM MST MON NOV 12 2007 MTZ009-014-048-131230- NORTHERN ROCKY MOUNTAIN FRONT- CENTRAL AND SOUTHERN LEWIS AND CLARK- SOUTHERN ROCKY MOUNTAIN FRONT- 512 AM MST MON NOV 12 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH CENTRAL MONTANA AND SOUTHWEST MONTANA. .DAY ONE...TODAY AND TONIGHT A STRONG PACIFIC WEATHER SYSTEM WILL IMPACT THE REGION TODAY AND TONIGHT WITH VERY STRONG WINDS AND HEAVY MOUNTAIN SNOWS. A HIGH WIND WARNING IS IN EFFECT THROUGH LATE TUESDAY AFTERNOON. SNOW AND BLOWING SNOW WILL SEVERELY IMPACT MOUNTAIN PASSES BETWEEN WESTERN AND CENTRAL MONTANA OVERNIGHT. A WINTER STORM WARNING IS IN EFFECT FOR TONIGHT. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY STRONG AND GUSTY WINDS WILL CONTINUE TO AFFECT THE REGION ON TUESDAY. THE HIGH WIND WARNING REMAINS IN EFFECT THROUGH LATE TUESDAY AFTERNOON. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. MTZ010>013-044>047-049>051-131230- EASTERN GLACIER-HILL-CASCADE-CHOUTEAU-TOOLE-LIBERTY- EASTERN PONDERA-BLAINE-EASTERN TETON-JUDITH BASIN-FERGUS- 512 AM MST MON NOV 12 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL MONTANA AND NORTH CENTRAL MONTANA. .DAY ONE...TODAY AND TONIGHT A STRONG PACIFIC WEATHER SYSTEM WILL IMPACT THE REGION TODAY AND TONIGHT WITH VERY STRONG WINDS. A HIGH WIND WARNING IS IN EFFECT FROM LATE THIS AFTERNOON THROUGH LATE TUESDAY AFTERNOON. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY STRONG AND GUSTY WINDS WILL CONTINUE TO AFFECT THE REGION ON TUESDAY. THE HIGH WIND WARNING REMAINS IN EFFECT THROUGH LATE TUESDAY AFTERNOON. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. MTZ008-015-052>055-131230- BEAVERHEAD-MADISON-JEFFERSON-BROADWATER-MEAGHER-GALLATIN- 512 AM MST MON NOV 12 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST MONTANA. .DAY ONE...TODAY AND TONIGHT THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.
16 high wind. Local standard time, as filed.
A gust to 91 mph was reported at the Two Medicine DOT site.
A gust to 81 mph was reported at Choteau and at Choteau 2S Additionally, a wind gust to 80 mph was reported at Bynum. A gust to 70 mph was reported at the Choteau Airport, a gust to 61 mph was reported at Choteau 12S and a gust to 60 mph was reported at Collins. Numerous reports of damages done to roofs were received.
An estimated wind gust to 70 mph was reported at Choteau 11NE. A shop had its roof peeled back by the wind.
A gust to 63 mph was reported at the Great Falls ASOS site.
A gust to 60 mph was reported at Silver City.
A gust to 66 mph was reported at the Inverness DOT site.
A gust to 66 mph was reported at the Inverness DOT site.
A gust to 61 mph was reported at the Sweetgrass DOT site.
A gust to 67 mph was reported at the Sierra RAWS site.
A wind gust to 60 mph was reported at the Cut Bank ASOS site.
A gust to 86 mph was reported at Lewistown 22S. The strong winds were responsible for downing many trees.
A gust to 76 mph was reported at the Norris Hill DOT site.
A gust to 58 mph was reported at Moccasin. The strong winds contributed to four separate accidents involving semi-trailer trucks on Highway 87 between Mile Markers 29 and 40. Two of the semi-trailers were confirmed to have been blown over by the high winds. A third semi-trailer was blown into a ditch. Additionally, power was knocked out in parts of Geyser, Hobson and Windham.
A gust to 64 mph was reported at the Fort Belknap RAWS site.
A gust to 83 mph was reported at Townsend.
An estimated gust of 70 mph was reported at Big Sandy.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Montana in 2007Every state in 2007This day in weather historyWarnings in Montana, November 2007
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 66398, 66419, 66422, 66407, 66411, 66404, 66414, 66413, 66415, 66400, 66429, 66412, 66426, 66416, 66430, 66409.