FNUS73 KGRR 051157 FWSGRR Spot Forecast for Looney 105...USFS National Weather Service Grand Rapids MI 757 AM EDT Tue May 5 2026 Forecast is based on ignition time of 1000 EDT on May 05. 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... Northwest winds pick up this morning into the afternoon with gusts 20 to 30 mph. Relative humidity values will drop into the low 30s. There is a 20 percent chance that relative humidity values could drop into the upper 20s late this afternoon. Similar conditions are expected Wednesday. .REST OF TODAY... Sky/weather.........Mostly sunny (20-30 percent). Temperature.........47 at ignition...Max 55. RH..................51 percent at ignition...Min 32 percent. Wind (20 ft)........Winds west at 7 mph at ignition...otherwise West winds 7 to 8 mph. Mixing height.......4200 ft AGL at ignition...otherwise 6300 ft AGL. Mixing winds........West 20 to 23 mph. Smoke dispersal.....820 /excellent/ at ignition. Max...1380 /excellent/. TIME (EDT) 10 AM NOON 2 PM 4 PM 6 PM 8 PM Sky (%).........16 18 21 30 47 54 Weather cov..... Weather type....NONE NONE NONE NONE NONE NONE Tstm cov........ Temp............47 51 53 55 54 50 RH..............51 41 36 32 34 42 20 ft wind......W 7 W 7 W 8 W 7 W 6 W 3 20 ft wind gust.15 16 17 16 14 10 Mix hgt (ft)....4200 5000 5800 6300 6100 1900 Mixing wind.....W 20 W 22 W 23 W 22 W 21 W 9 Smoke disprsl...820 1090 1340 1380 1270 180 .TONIGHT... Sky/weather.........Partly cloudy (40-50 percent) then becoming mostly cloudy (50-60 percent) then becoming partly cloudy (30-40 percent). Areas of frost after 3 am. Temperature.........Min 34. RH..................Max 79 percent. Wind (20 ft)........West winds 5 to 6 mph early in the evening becoming light. Mixing height.......400 ft AGL. Mixing winds........West 16 to 21 mph decreasing to 8 to 9 mph early in the evening, then shifting to the north 7 to 8 mph overnight shifting to the northeast around 7 mph after 3 am. Smoke dispersal.....1270 (excellent) early in the evening decreasing to 180 (fair) late in the night decreasing to 30 (poor) in the late evening and overnight. .WEDNESDAY... Sky/weather.........Mostly sunny (30-40 percent). Areas of frost early in the morning. Temperature.........Max 52. RH..................Min 37 percent. Wind (20 ft)........Light winds becoming northwest 5 to 7 mph late in the morning. Mixing height.......5700 ft AGL. Mixing winds........Northeast 5 to 6 mph shifting to the northwest 7 to 10 mph in the late morning and afternoon. Smoke dispersal.....20 (poor) early in the morning increasing to 620 (excellent) in the afternoon. $$ Forecaster...Ceru Requested by...Dean Chambers Type of request...PRESCRIBED .TAG 2612692.0/GRR .DELDT 05/05/26 .FormatterVersion 2.0.0 .EMAIL dean.chambers@usda.gov