Area Forecast Discussion
Issued by NWS Great Falls, MT
Issued by NWS Great Falls, MT
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895 FXUS65 KTFX 020807 AFDTFX Area Forecast Discussion National Weather Service Great Falls MT 207 AM MDT Fri Oct 2 2026 .KEY MESSAGES... - Warmer today with breezy afternoon winds. - An extended period of warmth and dryness is expected through much of the upcoming week with temperatures peaking on Monday. && .DISCUSSION... - Meteorological Overview: A zonal/westerly flow aloft across the Northern Rockies and MT will support warming and drying across the area today as primarily mid- high level cloud-cover thins this afternoon with most lower elevation locations reaching maximum temperatures in the 70s. Breezy west to southwest winds are expected this afternoon thanks to deeper atmospheric mixing while surface troughing also develops in response to an approaching weak upper level shortwave disturbance that tracks east along the US/Canadian border tonight. A somewhat cooler airmass with lighter winds and surface high pressure slides across the area Saturday behind the shortwave. Upper level ridging amplifies across the SW US later this weekend through early next week, providing an extended period of above average warmth and dryness with temperatures peaking 15-20F above seasonal averages on Monday. A flatter zonal flow redevelops mid- late next week for continued dryness and mild temperatures before potential upper level troughing moves in next weekend. - Forecast Confidence & Scenarios: The warmest and driest conditions of this forecast period are likely to occur on Monday with afternoon temperatures as warm as the lower to mid 80s which would be within a few degrees of daily records at a few locations. In addition, breezy to locally windy conditions are likely Monday afternoon, which combined with the associated warmth/dryness could elevate fire weather concerns for some areas. Hoenisch && .AVIATION... 02/06Z TAF Period. VFR conditions are expected to prevail through the period. Winds start to pick up out of the west/northwest along the northern plains and out of the west/southwest in Southwest Montana by mid-morning. Breezy conditions will continue through the rest of the evening with gusts up to 35kts possible along the Rocky Mountain Front and up to 30kts elsewhere. Winds are expected to start tapering off around sunset with lighter winds returning through Saturday morning. -thor && .PRELIMINARY POINT TEMPS/POPS... GTF 78 46 68 41 / 0 0 0 0 CTB 71 40 64 36 / 0 0 0 0 HLN 76 43 71 42 / 0 0 0 0 BZN 76 41 71 36 / 0 0 0 0 WYS 68 33 70 31 / 0 0 0 0 DLN 77 41 72 39 / 0 0 0 0 HVR 77 41 67 37 / 0 0 0 0 LWT 77 45 67 40 / 0 0 0 0 && .TFX WATCHES/WARNINGS/ADVISORIES... None. && $$ http://www.weather.gov/greatfalls