FNUS75 KTFX 031618 FWSTFX Spot Forecast for BC RD piles...USDA Forest Service National Weather Service Great Falls MT 918 AM MST Tue Dec 3 2024 Forecast is based on ignition time of 0900 MST on December 03. If conditions become unrepresentative...contact the National Weather Service. .DISCUSSION... Breezy southwest winds decrease this morning, becoming light this afternoon and shifting to the west. Light winds continue Wednesday out of the southwest. Breezy winds return Thursday and Friday, with stronger winds moving in on Saturday. The area is expected to remain dry through Saturday, where an upper level disturbance will bring precipitation to the area during the weekend. .REST OF TODAY... Sky/weather.........Mostly sunny (20-30 percent) then becoming mostly cloudy (60-70 percent). CWR.................0 percent. Max temperature.....49-54. Min humidity........23-28 percent. Wind (20 ft)........ Slope/valley.......Southwest winds 10 to 15 mph shifting to the west 5 to 10 mph late in the afternoon. Mixing height.......3500 ft AGL. Transport winds.....West 15 to 20 mph decreasing to around 10 mph late in the afternoon. Haines Index........3 or very low potential for large plume dominated fire growth. TIME (MST) 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM Sky (%).........8 8 16 24 39 54 60 65 71 Weather cov..... Weather type.... Tstm cov........ CWR.............0 0 0 0 0 0 0 0 0 Temp............43 47 50 50 51 51 49 46 43 RH..............37 31 29 30 28 28 30 35 41 20 FT wind dir..SW SW SW W W W W W W 20 FT wind spd..15 15 10 10 10 10 10 5 5 20 FT wind gust.20 20 20 15 15 15 15 10 10 Mix hgt (kft)...1.5 1.5 2.0 2.5 3.0 3.5 3.0 2.0 1.0 Transp wind dir.SW W W W W W W W W Transp wind spd.20 20 15 20 20 20 15 10 10 Haines index....3 3 3 3 3 3 3 3 3 .TONIGHT... Sky/weather.........Mostly cloudy (60-70 percent) then becoming partly cloudy (35-45 percent). CWR.................0 percent. Min temperature.....29-34. Max humidity........48-53 percent. Wind (20 ft)........ Slope/valley.......Southwest winds around 5 mph. Mixing height.......1000 ft AGL. Transport winds.....Southwest 10 to 15 mph. Haines Index........ TIME (MST) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM Sky (%).........70 70 69 57 45 33 36 39 43 41 39 37 Weather cov..... Weather type.... Tstm cov........ CWR.............0 0 0 0 0 0 0 0 0 0 0 0 Temp............39 37 36 35 34 34 34 34 34 34 34 33 RH..............43 45 47 48 50 49 49 50 50 49 50 51 20 FT wind dir..W SW SW SW SW SW SW SW SW SW SW SW 20 FT wind spd..5 5 5 5 5 5 5 5 5 5 5 5 20 FT wind gust.10 10 10 10 10 10 10 10 10 10 10 10 Mix hgt (kft)...1.0 1.0 1.5 1.5 1.5 1.0 1.0 1.0 1.0 1.0 1.0 1.0 Transp wind dir.W W SW SW SW SW SW SW SW SW SW SW Transp wind spd.10 10 10 10 10 15 15 15 15 15 15 15 Haines index....3 3 M M M M M M M M M M .WEDNESDAY... Sky/weather.........Mostly sunny (20-30 percent). CWR.................0 percent. Max temperature.....46-51. Min humidity........35-40 percent. Wind (20 ft)........ Slope/valley.......Southwest winds around 5 mph. Mixing height.......2000 ft AGL. Transport winds.....Southwest 5 to 10 mph increasing to around 15 mph late in the afternoon. Haines Index........2 or very low potential for large plume dominated fire growth. TIME (MST) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM Sky (%).........37 37 37 36 34 33 29 26 23 20 17 15 Weather cov..... Weather type.... Tstm cov........ CWR.............0 0 0 0 0 0 0 0 0 0 0 0 Temp............33 32 33 37 43 45 47 48 47 46 43 40 RH..............50 51 52 48 45 43 43 41 40 41 44 46 20 FT wind dir..SW SW SW SW SW SW SW SW SW SW SW SW 20 FT wind spd..5 5 5 5 5 5 5 5 5 5 5 5 20 FT wind gust.10 10 10 10 10 10 10 10 15 15 15 15 Mix hgt (kft)...1.5 1.0 1.0 1.0 1.5 1.5 2.0 2.0 2.0 2.0 1.5 1.0 Transp wind dir.SW W W SW W W W SW SW SW SW SW Transp wind spd.10 10 10 5 5 5 5 10 10 15 15 15 Haines index....M 2 2 2 2 2 2 2 2 2 2 2 $$ Forecaster...Wilson Requested by...Evan Haugan Type of request...PRESCRIBED .TAG 2427684.0/TFX .DELDT 12/03/24 .FormatterVersion 2.0.0 .EMAIL evan.haugan@gmail.com, tfx.ops@noaa.gov