1 high wind, as filed by the National Weather Service.
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 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 Dec 16, 2:55 AM MST, 2 hours 35 minutes earlier.
SOUTHWEST AND NORTH CENTRAL MONTANA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREAT FALLS MT
255 AM MST SUN DEC 16 2001
.SHORT TERM...UPPER TROF AXIS NOW WELL EAST OF CWA. WIND CONTINUES
TO BE THE MAIN FORECAST PROBLEM TODAY. MODELS REMAIN SOMEWHAT
INCONSISTENT WITH SHORT TERM DETAILS. ETA BRINGS A VORTICITY CENTER
ACROSS SOUTHERN ALBERTA BY MIDDAY. ASSOCIATED SURFACE LOW PRESSURE
GRADIENTS REMAIN TIGHT FOR GUSTY WINDS. H7 WIND SPEEDS HAVE COME
DOWN FROM PREVIOUS RUNS. WILL CONTINUE HIGH WIND WARNING FOR THE
ROCKY MOUNTAIN FRONT AND ADJACENT PLAINS BUT WILL DROP THE WATCH
FOR THE EASTERN ZONES. WIND SPEEDS DECREASE THIS AFTERNOON BUT
REMAIN GUSTY TONIGHT AS ANOTHER SURFACE LOW TRACKS ACROSS SOUTHERN
CANADA. WARM ADVECTION TODAY PUSHES AFTERNOON TEMPERATURES OVER THE
50 DEGREE MARK SOME AREAS WITH READINGS REMAINING WARM MONDAY.
.EXTENDED...WILL NOT MAKE ANY SIGNIFICANT CHANGES TO CURRENT
EXTENDED FORECAST. UPPER RIDGE OVER THE CWA DAY 4. UPPER TROF MOVES
ACROSS THE AREA DAY 5 THOUGH NOT MUCH MOISTURE WITH IT. STRONG
DOWNSLOPE GRADIENTS AGAIN DAY 6. STRONG UPPER RIDGE BUILDS OVER THE
PACIFIC NORTHWEST DAY 7 PLACING CWA UNDER CYCLONIC NORTHWEST FLOW
ALOFT. EMANUEL
.CCF NUMBERS
GTF NN 052/034 050/025 034 08000
EEEBE 022/038 018/035 016/040 022/035 020 11111111111
CTB NN 046/033 046/021 032 08000
EEEBE 018/030 014/030 012/037 018/033 018 11111111111
HLN NN 045/027 044/022 036 08111
EEBBB 018/034 016/030 016/030 016/032 016 22222111122
BZN BE 040/020 042/018 034 08111
EEEBE 014/032 012/035 014/031 008/028 008 22221111222
WEY BE 025/012 026/007 022 08222
EEEEE 004/023 006/026 008/022 000/020 000 32222222222
DLN BE 035/024 036/018 032 08112
EEEBE 015/033 013/036 018/032 010/028 010 22222111122
HVR NN 047/028 046/022 036 08000
EBBEE 015/035 013/038 018/034 010/035 010 11111111111
LWT NN 048/030 046/022 035 08000
EBBEE 020/036 017/038 018/034 016/034 016 21111111111
.TFX...HIGH WIND WARNING TODAY FOR THE ROCKY MOUNTAIN FRONT AND
ADJACENT PLAINS.1 high wind. Local standard time, as filed.
Sustained wind speed of 35 kt (measured) reported as well by employee of AgAir (a crop dusting business) in the town of Chester.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Montana in 2001Every state in 2001This day in weather historyWarnings in Montana, December 2001
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: 5275357.