Spot Forecast
Issued by NWS Great Falls, MT
Issued by NWS Great Falls, MT
337 FNUS75 KTFX 052057 FWSTFX Spot Forecast for Two Calf...BLM National Weather Service Great Falls MT 257 PM MDT Wed Jun 5 2024 Forecast is based on ignition time of 1500 MDT on June 05. If conditions become unrepresentative...contact the National Weather Service. .DISCUSSION... High pressure aloft building into Montana from the west will gradually decrease the northwesterly flow aloft over the fire area through Thursday. This will keep the area mostly sunny with gradually decreasing northwesterly surface winds and gradually warming temperatures. This will also result in afternoon humidity falling into the 15 to 25 percent range. The dry conditions are forecast to continue through Saturday under the high pressure ridge, but the light winds will shift more northerly on Friday behind a weak Canadian cold front passage, then more easterly on Saturday. The next chance for showers and possibly a few thunderstorms will be Sunday evening into Monday. .REST OF TODAY... Sky/weather.........Sunny (5-15 percent). CWR.................0 percent. LAL.................1. Max temperature.....72-77. Min humidity........15-20 percent. Wind (20 ft)........ Slope/valley.......Northwest winds around 20 mph with gusts to around 35 mph. Mixing height.......9000 ft AGL. Transport winds.....Northwest around 35 mph. Haines Index........6 or high potential for large plume dominated fire growth. .TONIGHT... Sky/weather.........Mostly clear (5-15 percent). CWR.................0 percent. LAL.................1. Min temperature.....47-52. Max humidity........49-54 percent. Wind (20 ft)........ Slope/valley.......Northwest winds 10 to 20 mph, with gusts to 30 mph through around 2000 MDT, becoming west around 5 mph around and after midnight. Mixing height.......500 ft AGL. Transport winds.....West around 15 mph. Haines Index........ .THURSDAY... Sky/weather.........Sunny (0-10 percent). CWR.................0 percent. LAL.................1. Max temperature.....79-84. Min humidity........16-21 percent. Wind (20 ft)........ Slope/valley.......West to northwest winds 5 to 10 mph. Gusts to 20 mph possible in the afternoon. Mixing height.......6500 ft AGL. Transport winds.....West around 15 mph. Haines Index........6 or high potential for large plume dominated fire growth. $$ Forecaster...Coulston Requested by...Erik Rathmann Type of request...PRESCRIBED .TAG 2415661.0/TFX .DELDT 06/05/24 .FormatterVersion 2.0.0 .EMAIL mtlec@firenet.gov, masnyder@blm.gov, tfx.ops@noaa.gov