FNUS73 KGRR 070650 FWSGRR Spot Forecast for Wolf-Rybicki/ Rail/ Link/ Stephens RXs...USFS National Weather Service Grand Rapids MI 250 AM EDT Thu May 7 2026 Forecast is based on ignition time of 0900 EDT on May 07. If conditions become unrepresentative, contact the National Weather Service. Please contact our office at (616) 949-5150, if you have questions or concerns with this forecast. .DISCUSSION... Mostly sunny today with RH dropping into the 35 to 40 percent range in the afternoon, West winds around 10 mph that could gust to 20 mph in the afternoon. .REST OF TODAY... Sky/weather.........Mostly sunny (40-50 percent). Temperature.........40 at ignition...Max 53. RH..................73 percent at ignition...Min 39 percent. Wind (20 ft)........Winds west at 3 mph at ignition...otherwise Light winds becoming west 6 to 8 mph in the late morning and afternoon. Mixing height.......2100 ft AGL at ignition...otherwise 6400 ft AGL. Mixing winds........West 9 to 18 mph. Smoke dispersal.....190 /fair/ at ignition. Max...1180 /excellent/. TIME (EDT) 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM 7PM 8PM Sky (%).........38 38 46 52 60 58 41 29 29 33 46 49 Weather cov..... Weather type.... Tstm cov........ Temp............40 45 47 48 50 50 51 51 52 53 51 50 RH..............73 58 51 49 44 44 42 42 41 39 44 48 20 FT wind dir..W W W W W W W W W SW SW SW 20 FT wind spd..3 6 7 7 7 7 7 8 8 7 6 5 20 FT wind gust.10 13 15 16 16 16 16 16 16 15 14 13 Mix hgt (kft)...2.1 3.1 4.7 5.4 6.2 6.4 6.3 5.8 5.4 4.5 2.9 1.9 Mixing wind dir.W W W W W W W W W W W SW Mixing wind spd.9 12 15 16 17 18 18 17 16 14 13 9 Smoke disprsl...190 360 710 880 1080118011601000870 630 360 180 .TONIGHT... Sky/weather.........Partly cloudy (25-35 percent) then becoming mostly clear (0-10 percent). Temperature.........Min 36. RH..................Max 89 percent. Wind (20 ft)........Southwest winds 5 to 7 mph early in the evening becoming light. Mixing height.......400 ft AGL. Mixing winds........West 13 to 14 mph shifting to the southwest 8 to 9 mph early in the evening. Smoke dispersal.....630 (excellent) early in the evening decreasing to 30 (poor) late in the night. .FRIDAY... Sky/weather.........Mostly sunny (30-40 percent). Temperature.........Max 60. RH..................Min 33 percent. Wind (20 ft)........Light winds becoming southwest 5 to 7 mph in the late morning and afternoon. Mixing height.......4800 ft AGL. Mixing winds........Southwest 7 to 16 mph. Smoke dispersal.....20 (poor) early in the morning increasing to 770 (excellent) in the afternoon. $$ Forecaster...Ostuno Requested by...Richard Davis Type of request...PRESCRIBED .TAG 2612983.0/GRR .DELDT 05/07/26 .FormatterVersion 2.0.0 .EMAIL richar.w.davis@usda.gov