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Spot Forecast
Issued by NWS Great Falls, MT
Issued by NWS Great Falls, MT
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463 FNUS75 KTFX 142304 FWSTFX Spot Forecast for Black Mountain...USFS National Weather Service Great Falls MT 504 PM MDT Wed Aug 14 2024 Forecast is based on forecast start time of 0600 MDT on August 15. If conditions become unrepresentative...contact the National Weather Service. .DISCUSSION... A brief period of ridging early Thursday will give way to southwesterly flow aloft Thursday afternoon. A disturbance in this flow will increase chances for showers and thunderstorms through the afternoon and into the overnight Thursday night. The chance for one-quarter of an inch worth of precipitation through Thursday night is around 60%. Showers and more isolated thunderstorms persist into Friday. .THURSDAY... Sky/weather.........Sunny (10-20 percent), becoming partly cloudy. Chance of rain showers and slight chance of thunderstorms in the afternoon. CWR.................5 percent. LAL.................2. Max temperature.....73-78. Min humidity........25-30 percent. Wind (20 ft)........ Slope/valley.......Slope/valley flow around 5 mph, through mid-morning, becoming East up to 5 mph. Gusty and erratic winds expected near thunderstorms in the afternoon. Ridgetop...........Southeast around 5 mph. Haines Index........3 or very low potential for large plume dominated fire growth. .THURSDAY NIGHT... Sky/weather.........Mostly cloudy (70-80 percent). Rain showers likely through the night. Chance of thunderstorms through the night. CWR.................50 percent. LAL.................3. Min temperature.....51-56. Max humidity........78-83 percent. Wind (20 ft)........ Slope/valley.......Down slope/valley around 5 mph. Gusty and erratic winds expected near thunderstorms. Ridgetop...........Southeast around 5 mph. .FRIDAY... Sky/weather.........Partly sunny (60-70 percent). Chance of rain showers and slight chance of thunderstorms through the day. CWR.................10 percent. LAL.................3. Max temperature.....65-70. Min humidity........36-41 percent. Wind (20 ft)........ Slope/valley.......West winds around 5 mph. Gusty and erratic winds expected near thunderstorms. Ridgetop...........Southwest around 10 mph. Haines Index........3 or very low potential for large plume dominated fire growth. $$ Forecaster...McDowell Requested by...Jordan Bloxham Type of request...WILDFIRE .TAG 2419200.75/TFX .DELDT 08/14/24 .FormatterVersion 2.0.0 .EMAIL jbloxham@blm.gov, tfx.ops@noaa.gov