FNUS73 KFGF 151245 FWSFGF Spot Forecast for Olsen NPB...MN DNR National Weather Service Grand Forks ND 745 AM CDT Wed Apr 15 2026 Forecast is based on ignition time of 1000 CDT on April 15. If conditions become unrepresentative, contact the National Weather Service. Please call the NWS in Grand Forks at 701-795-5127 for additional information and monitor our website (www.weather.gov/fgf) or NOAA All-Hazards Radio for the latest updates. .DISCUSSION... A mostly sunny day. Some mid or high clouds this morning. South wind 10 mph this afternoon with RH values falling into the 35 to 40 percent range. Warm day on Thursday with a gustier south wind with lowest RH values near 30 percent. Colder Friday and Saturday. .REST OF TODAY... Sky/weather.........Sunny (5-15 percent). Max temperature.....Around 70. Min humidity........38 percent. Wind (20 ft)........South winds 10 mph shifting to the southwest late in the afternoon. Mixing height.......7000 ft AGL. Mixing winds........Southwest 5 to 10 mph increasing to around 15 mph late in the afternoon. Smoke dispersal.....6100 knot-ft early in the morning increasing to 76500 knot-ft in the afternoon. TIME (CDT) 10A 11A 12P 1PM 2PM 3PM 4PM 5PM Sky (%).........20 10 2 2 1 2 2 2 Weather cov..... Weather type.... Tstm cov........ Temp............45 51 58 63 65 67 68 68 RH..............79 72 64 54 48 45 40 40 20 FT wind dir..S S S S SW SW SW SW 20 FT wind spd..5 5 5 10 5 5 5 5 20 FT wind gust.9 11 11 12 13 13 13 12 Mix hgt (kft)...1.0 1.4 1.9 2.4 3.4 5.4 7.0 6.4 Mixing wind dir.S S S SW SW SW W W Mixing wind spd.5 10 10 10 10 15 15 15 Vrate kt-ft/1K..6 10 17 24 34 60 77 70 .TONIGHT... Sky/weather.........Mostly clear (5-15 percent). Min temperature.....Around 47. Max humidity........80 percent. Wind (20 ft)........Southwest winds around 5 mph shifting to the south in the late evening and overnight. Mixing height.......400 ft AGL. Mixing winds........Southwest 5 to 10 mph increasing to south 15 to 20 mph. Smoke dispersal.....68000 knot-ft early in the evening decreasing to 3900 knot-ft late in the night. TIME (CDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM Sky (%).........9 11 13 6 15 13 9 7 8 10 7 8 Weather cov..... Weather type.... Tstm cov........ Temp............70 68 65 60 58 56 54 53 52 51 49 49 RH..............38 40 45 53 55 59 66 69 71 74 80 77 20 FT wind dir..SW SW S S S S S S S S S S 20 FT wind spd..5 5 5 5 5 5 10 10 10 10 10 10 20 FT wind gust.11 9 8 9 11 12 13 14 14 14 14 14 Mix hgt (kft)...6.8 2.1 0.7 0.7 0.4 0.4 0.5 0.5 0.5 0.5 0.5 0.5 Mixing wind dir.SW SW S S S S S S S S S S Mixing wind spd.10 5 5 10 10 15 15 20 15 15 15 15 Vrate kt-ft/1K..68 12 4 6 4 6 7 8 7 7 7 6 .THURSDAY... Sky/weather.........Sunny (0-10 percent). Max temperature.....Around 76. Min humidity........31 percent. Wind (20 ft)........South winds 10 to 15 mph increasing to 15 to 20 mph in the afternoon. Mixing height.......7900 ft AGL. Mixing winds........South 15 to 20 mph increasing to southwest 30 to 35 mph. Smoke dispersal.....5800 knot-ft early in the morning increasing to 86700 knot-ft in the afternoon increasing to (139300 knot-ft). $$ Forecaster...DR Requested by...Tyler Larson Type of request...PRESCRIBED .TAG 2610396.0/FGF .DELDT 04/15/26 .FormatterVersion 2.0.0 .EMAIL tyler.k.larson@state.mn.us