Deep surface low pressure moving across southern Canada contributed to strong winds along the Montana Hi-Line. Wind gusts in excess of 60 mph were common across the Hi-Line.
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.
Deep surface low pressure moving across southern Canada contributed to strong winds along the Montana Hi-Line. Wind gusts in excess of 60 mph were common across the Hi-Line.
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 3, 8:01 PM MST, 2 hours 8 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GREAT FALLS MT 901 PM MDT SAT NOV 3 2007 .UPDATE...WINDY FORECAST CONTINUES TO LOOK ON TRACK FOR TONIGHT. STRONG WINDS ARE CURRENTLY BEING REPORTED JUST NORTH OF THE CANADIAN BORDER WITH MODELS INDICATING THAT THE CORE OF HIGH WINDS WILL SLIDE SOUTH ACROSS MY FORECAST AREA OVERNIGHT. IN-OFFICE ANALYSIS PROGRAM SUGGESTS THAT THERE IS A POTENTIAL FOR LOCAL GUSTS TO EXCEED 100 MPH ALONG THE ROCKY MOUNTAIN FRONT. HIGH WIND WARNING WILL BE RE-ISSUED BEFORE 10 PM SO WILL TWEAK WORDING TO COVER THIS EVENTUALITY. HAVE MADE A FEW TWEAKS TO THE GOING FORECAST TO REDUCE EVENING POPS OVER THE ROCKY MOUNTAIN FRONT AS MOISTURE IS LAGGING A BIT BUT IS STILL EXPECTED TO FLOW THROUGH THE AREA AFTER MIDNIGHT. HAVE ALSO MADE SOME MINOR TEMPERATURE TWEAKS...MAINLY TO INCREASE OVERNIGHT LOWS A FEW DEGREES. MPJ && .AVIATION... UPDATED 0000Z. A STRONG WEST TO NORTHWEST FLOW ALOFT WILL RESIDE OVER THE REGION THROUGH THE PERIOD. EXPECT VFR CONDITIONS TO PREVAIL THROUGH THE PERIOD WITH MID AND HIGH LEVEL CLOUDS TO AFFECT THE REGION MAINLY ALONG THE ROCKY MOUNTAIN FRONT AND ADJACENT PLAINS. EXPECT SCATTERED SHOWERS TO DEVELOP OVER THE ROCKY MOUNTAIN FRONT AFTER 08Z SUNDAY...WITH SCATTERED SHOWERS OVER THE PLAINS AS A COLD FRONT MOVES SOUTHWARD DURING THE DAY ON SUNDAY. ADDITIONALLY STRONG SURFACE WINDS ARE LIKELY IN THE GREAT FALLS AND CUT BANK AREAS...WITH SURFACE WIND GUSTS AROUND 55 MPH AT TIMES TONIGHT INTO SUNDAY MORNING. DB && .PREV DISCUSSION... (ISSUED 600 PM MDT SAT NOV 3 2007) DISCUSSION... TONIGHT THROUGH MONDAY...NORTHWESTERLY FLOW ALOFT WILL BE PRESENT OVER THE FORECAST AREA DURING THIS EVENING...WITH MID LEVEL FLOW STRENGTHENING AND BECOMING WESTERLY ALONG THE NORTHERN CONTINENTAL DIVIDE. THE ORIENTATION AND STRENGTH OF THIS FLOW WILL ALLOW MIXING DOWN TO THE SURFACE ON THE EASTERN SLOPE OF THE NORTHERN ROCKIES...WITH STRONG AND GUSTY WINDS DEVELOPING DURING THE OVERNIGHT HOURS. THESE WINDS WILL IMPACT MOST OF NORTH CENTRAL MONTANA...WITH THE STRONGEST GUSTS ALONG THE ROCKY MOUNTAIN FRONT. THE WESTERLY FLOW AT THE SURFACE WILL RESULT IN A WARMING DOWNSLOPE EFFECT...KEEPING TEMPERATURES QUITE WARM THROUGHOUT THE FORECAST AREA. A WEAK STORM SYSTEM IS EXPECTED TO MOVE SOUTH OUT OF ALBERTA TOMORROW AFTERNOON...WITH WINDS QUICKLY DISSIPATING FOLLOWING THE SURFACE COLD FRONT. WEAK MID LEVEL FORCING WILL ALSO ARRIVE FOLLOWING THIS COLD FRONT...WITH SNOW LEVELS DROPPING RAPIDLY AFTER SUNSET. TEMPERATURES WILL BE COLD ENOUGH TO SUPPORT SNOWFALL ACROSS THE NORTH CENTRAL MONTANA DURING THIS TIME...HOWEVER ACCUMULATIONS WILL BE AN INCH OR LESS AT MOST LOCATIONS. THIS BLAST OF COLD IS ANTICIPATED TO BE SHORT LIVED...WITH HIGH PRESSURE STRENGTHENING OVER THE REGION DURING MONDAY. ZUMPFE MONDAY NIGHT THROUGH THURSDAY NIGHT...A RATHER WINDY PERIOD OF WEATHER EXPECTED DURING THIS TIME...ESPECIALLY OVER NORTH CENTRAL MONTANA. WITH A BRISK WEST TO NORTHWEST FLOW ALOFT RESIDING OVER THE REGION DURING THIS TIME...EXPECT WEAK UPPER LEVEL DISTURBANCES TO MOVE SOUTH OUT OF ALBERTA...AND THEN ACROSS CENTRAL/EASTERN MONTANA. AS A RESULT...AS THE DISTURBANCES MOVE THROUGH...EXPECT A SMALL CHANCE FOR SHOWERS OVER THE WESTERN MOUNTAINS...WITH MOSTLY DRY CONDITIONS OVER THE PLAINS AND MUCH OF SOUTHWEST MONTANA. IT WILL BE WINDY THOUGH...ESPECIALLY OVER THE FRONT RANGE OF THE ROCKIES AND THE ADJACENT PLAINS TUESDAY THROUGH WEDNESDAY. AFTERNOON TEMPERATURES WILL GENERALLY BE SLIGHTLY ABOVE NORMAL FOR THE MIDDLE PORTION OF NEXT WEEK. OVERNIGHT LOWS WILL GENERALLY BE NEAR NORMAL...EXCEPT NEAR THE FRONT RANGE OF THE ROCKIES...WHERE BREEZY CONDITIONS OVERNIGHT WILL ALLOW FOR SLIGHTLY ABOVE NORMAL TEMPERATURES. BRUSDA FRIDAY AND SATURDAY...MODELS IN BETTER AGREEMENT WITH A SERIES OF DISTURBANCE FLOWING THROUGH A WESTERLY FLOW ALOFT. INCREASED PRECIPITATION CHANCES CLOSER TO CLIMATOLOGY. TEMPERATURES ARE EXPECTED TO BE NEAR SEASONAL AVERAGES. SAUCIER && .PRELIMINARY POINT TEMPS/POPS... GTF 44 52 26 44 / 0 20 30 10 CTB 39 48 22 44 / 0 20 20 10 HLN 37 52 28 48 / 10 30 30 20 BZN 34 57 29 51 / 0 10 30 20 WEY 25 44 24 42 / 0 10 10 10 DLN 33 56 30 50 / 0 10 10 10 HVR 40 48 22 43 / 0 20 10 0 LWT 38 50 23 42 / 0 20 30 10 && .TFX WATCHES/WARNINGS/ADVISORIES... HIGH WIND WARNING UNTIL 3 PM MST SUNDAY FOR MTZ009-010-012>014- 044>046-048>050. && SHORT TERM...MPJ/ZUMPFE LONG TERM...BRUSDA/SAUCIER AVIATION...DB WEATHER.GOV/GREATFALLS
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GREAT FALLS MT 535 AM MDT SAT NOV 3 2007 MTZ009-010-048-041145- NORTHERN ROCKY MOUNTAIN FRONT-EASTERN GLACIER- SOUTHERN ROCKY MOUNTAIN FRONT- 535 AM MDT SAT NOV 3 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH CENTRAL MONTANA. .DAY ONE...TODAY AND TONIGHT A HIGH WIND WARNING IS IN EFFECT. SUSTAINED WINDS OF 30 TO 40 MPH WITH GUSTS IN EXCESS OF 70 MPH ARE POSSIBLE. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY A HIGH WIND WARNING REMAINS IN EFFECT UNTIL 3 PM MST SUNDAY. WEST WINDS 30 TO 40 MPH WITH GUSTS IN EXCESS OF 70 MPH ARE POSSIBLE. THE WINDS SHOULD BEGIN TO DECREASE BY LATE SUNDAY AFTERNOON. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. MTZ012>014-044>046-049-050-041145- CASCADE-CHOUTEAU-CENTRAL AND SOUTHERN LEWIS AND CLARK-TOOLE- LIBERTY-EASTERN PONDERA-EASTERN TETON-JUDITH BASIN- 535 AM MDT SAT NOV 3 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL MONTANA...NORTH CENTRAL MONTANA AND SOUTHWEST MONTANA. .DAY ONE...TODAY AND TONIGHT A HIGH WIND WARNING IS IN EFFECT TONIGHT BEGINNING AT 6 PM MDT. SUSTAINED WINDS 25 TO 40 MPH WITH GUSTS IN EXCESS OF 60 MPH ARE POSSIBLE. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY A HIGH WIND WARNING REMAINS IN EFFECT UNTIL 3 PM MST SUNDAY. SUSTAINED WINDS 25 TO 40 MPH WITH GUSTS IN EXCESS OF 60 MPH WILL DECREASE DURING THE AFTERNOON HOURS OF SUNDAY. .SPOTTER INFORMATION STATEMENT... WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES. MTZ008-011-015-047-051>055-041145- BEAVERHEAD-HILL-MADISON-BLAINE-FERGUS-JEFFERSON-BROADWATER- MEAGHER-GALLATIN- 535 AM MDT SAT NOV 3 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL MONTANA...NORTH CENTRAL MONTANA AND SOUTHWEST MONTANA. .DAY ONE...TODAY AND TONIGHT THE PROBABILITY IS LOW FOR WIDESPREAD HAZARDOUS WEATHER. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY 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.
7 high wind. Local standard time, as filed.
A gust to 66 mph was reported at the Two Medicine DOT site.
An estimated gust to 60 mph was reported at Cascade 20SSE.
A gust to 69 mph was reported at the Choteau Airport.
A gust to 69 mph was reported at the Choteau Airport.
Sustained winds of 40 mph were reported at the Cut Bank ASOS site.
Sustained winds of 43 mph were reported at Bowmans Corner.
A gust to 67 mph was reported at Chinook 11S.
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: 66431, 66433, 66438, 66440, 66432, 66435, 66436.