FNUS75 KMSO 062340 FWSMSO Spot Forecast for GNP SAR National Weather Service Missoula MT 540 PM MDT Wed May 6 2026 Forecast is based on forecast start time of 1800 MDT on May 06. If conditions become unrepresentative...contact the National Weather Service. .DISCUSSION...Some showers are moving into the area with thunderstorms upstream, still in Canada just north of Idaho. There is a low chance of lightning in the area of the recovery this evening. Rain showers will increase in intensity around 8PM MDT. Uncertainty in the rain amounts comes from the showery nature of the wave coming in, but if the site is directly impacted by multiple showers tonight, expect around a quarter of an inch of rain by 1AM MDT. .TONIGHT... * Sky/Weather.........Mostly cloudy. Rain showers likely and slight chance of thunderstorms in the evening. Rain likely overnight. * Chance of Precip....70 percent. * Chance Lightning....20 percent. * Wind (20 ft)........Variable 1-3 mph. * Precip Amount.......0.05 to 0.26 inches. TIME (MDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM Sky (%).........59 75 80 85 87 88 85 81 66 57 51 60 Weather cov..... CHC CHC CHC LKY LKY LKY LKY CHC CHC CHC Weather type.... RW RW RW RW RW RN RN RN RN RN Tstm cov........ SCH SCH SCH SCH SCH Chc of pcpn (%).10 30 40 40 70 70 70 60 30 10 30 40 Chc of ltng (%).10 20 20 20 20 20 10 10 10 10 10 10 Surface wnd dir.SW SW SW SE SE NW E SE SW SE SE E Surface wnd spd.3 2 2 2 2 1 2 1 1 1 1 1 Surface wnd gst.10 10 5 5 5 5 5 5 5 5 5 5 .THURSDAY... * Sky/Weather.........Mostly cloudy. Chance of rain in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. * Chance of Precip....50 percent. * Chance Lightning....20 percent. * Wind (20 ft)........Variable 1-3 mph. * Precip Amount.......0.07 inches. TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM Sky (%).........77 73 69 74 73 64 54 51 60 62 53 48 Weather cov.....CHC CHC CHC CHC CHC CHC CHC CHC CHC CHC CHC SCH Weather type....RN RN RN RN RN RN RN RN RN RW RW RW Tstm cov........ SCH SCH SCH Chc of pcpn (%).50 50 50 50 50 30 30 30 40 40 30 20 Chc of ltng (%).10 10 10 10 10 10 10 10 10 20 20 20 Surface wnd dir.E N N N N N N N N SW SW W Surface wnd spd.1 0 0 0 0 0 0 0 0 1 1 1 Surface wnd gst.5 5 5 5 5 5 5 5 5 5 .THURSDAY NIGHT... * Sky/Weather.........Partly cloudy. * Chance of Precip....10 percent. * Chance Lightning....0 percent. * Wind (20 ft)........Variable 1-3 mph. * Precip Amount.......0.00 inches. TIME (MDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM Sky (%).........39 39 39 65 65 65 65 65 65 76 76 76 Weather cov..... Weather type.... Tstm cov........ Chc of pcpn (%).10 10 10 10 10 10 0 0 0 0 0 0 Chc of ltng (%).0 0 0 0 0 0 0 0 0 0 0 0 Surface wnd dir.SW SW SW S S S S S S S S S Surface wnd spd.1 1 1 1 1 1 1 1 1 1 1 1 Surface wnd gst.5 5 5 5 5 5 5 5 5 5 5 5 .FRIDAY... * Sky/Weather.........Mostly cloudy. * Chance of Precip....0 percent. * Chance Lightning....0 percent. * Wind (20 ft)........Variable 1-3 mph. * Precip Amount.......0.00 inches. TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM Sky (%).........77 77 77 50 50 50 56 56 56 79 79 79 Weather cov..... Weather type.... Tstm cov........ Chc of pcpn (%).0 0 0 0 0 0 0 0 0 0 0 0 Chc of ltng (%).0 0 0 0 0 0 0 0 0 0 0 0 Surface wnd dir.SW SW SW SW SW SW SW SW SW SW SW SW Surface wnd spd.1 1 1 1 1 1 3 3 3 3 3 3 Surface wnd gst.5 5 5 5 5 5 10 10 10 10 10 10 $$ Forecaster...Leach Requested by...Ranger Dan Seifert Type of request...SAR .TAG 2612997.0/MSO .DELDT 05/06/26 .FormatterVersion 2.0.0 .EMAIL glac_dispatch@nps.gov