FNUS73 KFGF 151029 FWSFGF Spot Forecast for Zimmerman Prairie...The Nature Conservancy National Weather Service Grand Forks ND 529 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... Fog and low clouds to start the day, but turning out mostly sunny as fog and clouds should burn off mid morning. Warm today with a south wind 10 to 15 mph, turning more southwest late day. Warm day Thursday ahead of a cold front which moves through Thursday evening. Gusty south winds Thursday. .TODAY... Sky/weather.........Sunny (5-15 percent). Max temperature.....Around 68. Min humidity........42 percent. Wind (20 ft)........South winds around 10 mph shifting to the southwest late in the afternoon. Mixing height.......5200 ft AGL. Mixing winds........Southwest 15 to 20 mph shifting to the west late in the afternoon. Smoke dispersal.....10700 knot-ft early in the morning increasing to 73300 knot-ft in the afternoon. TIME (CDT) 10A 11A 12P 1PM 2PM 3PM 4PM 5PM Sky (%).........24 7 3 4 0 0 2 3 Weather cov..... Weather type.... Tstm cov........ Temp............49 53 57 60 63 66 67 66 RH..............77 71 69 62 56 48 43 47 20 FT wind dir..S S S S SW SW SW SW 20 FT wind spd..10 10 10 10 10 10 10 10 20 FT wind gust.14 15 16 16 16 16 15 14 Mix hgt (kft)...1.0 1.3 1.8 2.3 2.7 3.6 4.4 5.2 Mixing wind dir.S S S S SW SW SW W Mixing wind spd.15 15 15 15 15 20 20 15 Vrate kt-ft/1K..11 14 21 30 41 58 71 73 .TONIGHT... Sky/weather.........Mostly clear (0-10 percent). Min temperature.....Around 45. Max humidity........82 percent. Wind (20 ft)........South winds 5 to 10 mph. Mixing height.......400 ft AGL. Mixing winds........South 10 to 15 mph becoming around 15 mph after 3 am. Smoke dispersal.....55500 knot-ft early in the evening decreasing to 3700 knot-ft late in the night. TIME (CDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM Sky (%).........3 3 4 5 6 5 5 10 8 9 9 10 Weather cov..... Weather type.... Tstm cov........ Temp............68 66 62 57 55 53 52 50 50 49 47 47 RH..............42 45 52 59 61 66 66 71 71 74 79 79 20 FT wind dir..SW S S S S S S SE S S S S 20 FT wind spd..10 5 5 5 5 10 10 10 10 10 10 10 20 FT wind gust.13 11 11 11 11 12 13 14 14 14 14 14 Mix hgt (kft)...4.3 1.0 0.7 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 Mixing wind dir.SW SW S S S S S S S S S S Mixing wind spd.15 10 10 10 10 10 15 15 15 15 15 15 Vrate kt-ft/1K..56 9 6 4 4 4 5 4 4 6 5 6 .THURSDAY... Sky/weather.........Sunny (10-20 percent). Max temperature.....Around 71. Min humidity........38 percent. Wind (20 ft)........South winds 10 to 15 mph with gusts to around 23 mph increasing to around 20 mph in the afternoon. Mixing height.......6400 ft AGL. Mixing winds........South 15 to 20 mph increasing to 25 to 30 mph late in the morning, then shifting to the west late in the afternoon. Smoke dispersal.....5800 knot-ft early in the morning increasing to 71200 knot-ft in the afternoon increasing to (100300 knot-ft) in the afternoon. $$ Forecaster...DR Requested by...Eric Hoff Type of request...PRESCRIBED .TAG 2610377.0/FGF .DELDT 04/15/26 .FormatterVersion 2.0.0 .EMAIL ehoff@tnc.org