FNUS73 KFGF 191928 FWSFGF Spot Forecast for Mentor Prairie South RX...MN DNR-Wildlife National Weather Service Grand Forks ND 228 PM CDT Tue May 19 2026 Forecast is based on ignition time of 0800 CDT on May 20. 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... The mostly cloudy skies and lingering scattered sprinkles across western Minnesota this afternoon will clear out tonight, leaving mostly sunny skies tomorrow. Some frost and temperatures below freezing are possible early in the morning, but afternoon temperatures should climb into the low to mid 60s. Light and somewhat variable winds in the early morning should steady out of the south by ignition time at 5 to 10 mph. Some gusts up to 15 to 20 mph will be possible by late afternoon. Afternoon RH values are expected to fall into the 35 to 40 percent range. Winds will remain south to southeasterly through Wednesday night and into Thursday, picking up in speed with sustained winds 15 mph and gusts up to 25 mph by Thursday afternoon. Temperatures will be a bit warmer with RH values close to 35 percent for Thursday. .WEDNESDAY... Sky/weather.........Sunny (5-15 percent). Max temperature.....Around 62. Min humidity........39 percent. Wind (20 ft)........South winds 5 to 10 mph. Gusts up to 21 mph late in the afternoon. Mixing height.......5900 ft AGL. Mixing winds........South 10 to 15 mph. Smoke dispersal.....4700 knot-ft early in the morning increasing to 75400 knot-ft in the afternoon. TIME (CDT) 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM Sky (%).........4 2 1 1 1 2 1 2 7 16 Weather cov..... Weather type.... Tstm cov........ Temp............39 43 51 53 55 57 60 60 61 62 RH..............82 73 53 48 45 43 40 41 39 39 20 FT wind dir..S S S S S S S S S S 20 FT wind spd..5 5 5 5 5 5 10 10 10 10 20 FT wind gust.11 11 12 13 13 14 15 16 19 19 Mix hgt (kft)...0.7 1.5 2.8 3.6 4.0 4.5 5.0 5.4 5.9 5.8 Mixing wind dir.S S SW SW SW S S S S S Mixing wind spd.10 10 10 10 10 10 10 10 15 15 Vrate kt-ft/1K..5 11 22 29 32 36 45 54 72 75 .WEDNESDAY NIGHT... Sky/weather.........Partly cloudy (25-35 percent). Min temperature.....Around 43. Max humidity........76 percent. Wind (20 ft)........South winds around 10 mph. Gusts up to 21 mph early in the evening then 26 mph late in the evening. Mixing height.......500 ft AGL. Mixing winds........South 15 to 20 mph. Smoke dispersal.....71400 knot-ft early in the evening decreasing to 6100 knot-ft late in the night. TIME (CDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM Sky (%).........19 25 32 33 30 33 28 32 32 34 33 39 Weather cov..... Weather type.... Tstm cov........ Temp............62 60 59 54 51 50 49 48 47 45 45 45 RH..............40 42 45 52 58 58 61 63 65 70 70 70 20 FT wind dir..S S S S S S S S S S S S 20 FT wind spd..10 10 10 10 10 10 10 10 10 10 10 10 20 FT wind gust.19 18 16 16 16 18 20 21 22 23 23 23 Mix hgt (kft)...5.5 4.8 1.6 0.8 0.5 0.5 0.6 0.6 0.7 0.7 0.6 0.7 Mixing wind dir.S S S S S S S S S S S S Mixing wind spd.15 15 15 15 15 15 15 15 20 20 20 15 Vrate kt-ft/1K..71 67 18 9 7 8 8 9 11 12 10 11 .THURSDAY... Sky/weather.........Mostly sunny (30-40 percent). Max temperature.....Around 68. Min humidity........35 percent. Wind (20 ft)........South winds 10 to 15 mph with gusts to around 25 mph. Mixing winds........South 15 to 20 mph. TIME (CDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM Sky (%).........33 51 52 35 16 20 24 28 25 22 19 25 Weather cov..... Weather type.... Tstm cov........ Temp............44 46 49 54 59 62 64 65 66 67 68 68 RH..............76 71 67 57 47 43 40 38 37 36 35 35 20 FT wind dir..S S S S S S S S S S S S 20 FT wind spd..10 10 10 10 15 15 15 15 15 15 10 10 20 FT wind gust.23 23 21 22 23 25 23 23 23 23 23 22 Mixing wind dir.S S S S S S S S S S S S Mixing wind spd.15 20 20 20 20 20 20 20 20 20 20 20 $$ Forecaster...JR Requested by...Ross Lindholm Type of request...PRESCRIBED .TAG 2614044.0/FGF .DELDT 05/19/26 .FormatterVersion 2.0.0 .EMAIL ross.lindholm@state.mn.us