


Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Grand Rapids, MI
Issued by NWS Grand Rapids, MI
727 FNUS53 KGRR 212034 FWFGRR Fire Weather Planning Forecast for Southwest Lower Michigan National Weather Service Grand Rapids MI 434 PM EDT Thu Aug 21 2025 ...Dry Friday... .DISCUSSION...Dry weather is anticipated through Friday. A cold front will move south Friday night and Saturday generating a few showers or thunderstorms. MIZ037>039-043>045-220815- Mason-Lake-Osceola-Oceana-Newaygo-Mecosta- Including the cities of Ludington, Baldwin, Reed City, Hart, Fremont, and Big Rapids 434 PM EDT Thu Aug 21 2025 .TONIGHT... Sky/weather.........Mostly clear (10-20 percent). Areas of fog after 2 AM. Min temperature.....53-58. 24 hr trend......3 degrees warmer. Max humidity........95-100 percent. 24 hr trend......Unchanged. 20-foot winds.......Light winds. Mixing height.......900-1400 ft AGL. Transport winds.....Northeast around 5 mph shifting to the southeast overnight. Smoke dispersal.....40-110 (poor). Pcpn Amount.........None. .FRIDAY... Sky/weather.........Mostly sunny (30-40 percent). Areas of fog until 9 AM. Max temperature.....79-84. 24 hr trend......Unchanged. Min humidity........60-65 percent near Lake Michigan and 47-52 percent Inland. 24 hr trend......4 percent wetter near Lake Michigan and 5 percent wetter Inland. 20-foot winds.......West winds 5 to 9 mph. Mixing height.......2400-2900 ft AGL near Lake Michigan and 4700-5200 ft AGL Inland. Transport winds.....Southwest 5 to 10 mph. Smoke dispersal.....440-550 (good). Pcpn Amount.........None. .FRIDAY NIGHT... Sky/weather.........Partly cloudy (50-60 percent) until 11 PM, then mostly cloudy (70-80 percent). Chance of showers after 2 AM. Chance of pcpn......30 percent overnight. Min temperature.....59-64. 24 hr trend......4 degrees warmer. Max humidity........95-100 percent. 24 hr trend......Unchanged. 20-foot winds.......Southwest winds 5 to 7 mph. Mixing height.......1000-1500 ft AGL. Transport winds.....Southwest around 10 mph. Smoke dispersal.....90 (poor). Pcpn Amount.........none to 0.05 in. .SATURDAY... Sky/weather.........Mostly sunny (30-40 percent). Chance of showers until 2 PM. Chance of pcpn......30 percent until midday. Max temperature.....75-80. 24 hr trend......4 degrees cooler. Min humidity........59-64 percent near Lake Michigan and 50-55 percent Inland. 24 hr trend......2 percent wetter near Lake Michigan and 5 percent wetter Inland. 20-foot winds.......West winds 6 to 11 mph. Gusts up to 20 mph in the afternoon. Mixing height.......4300-4800 ft AGL near Lake Michigan and 4500-5000 ft AGL Inland. Transport winds.....West 15 to 20 mph. Smoke dispersal.....740-1000 (excellent). Pcpn Amount.........None to 0.23 in. $$ MIZ040-046-220815- Clare-Isabella- Including the cities of Clare and Mount Pleasant 434 PM EDT Thu Aug 21 2025 .TONIGHT... Sky/weather.........Mostly clear (15-25 percent). Areas of fog after 2 AM. Min temperature.....52-57. 24 hr trend......1 degree warmer. Max humidity........100 percent. 24 hr trend......Unchanged. 20-foot winds.......East winds around 5 mph in the evening becoming light. Mixing height.......1100-1600 ft AGL. Transport winds.....Southeast around 5 mph. Smoke dispersal.....30-80 (poor). Pcpn Amount.........None. .FRIDAY... Sky/weather.........Mostly sunny (30-40 percent). Areas of fog until 9 AM. Max temperature.....Around 84. 24 hr trend......3 degrees warmer. Min humidity........43-48 percent. 24 hr trend......Unchanged. 20-foot winds.......West winds 5 to 10 mph. Mixing height.......5400-5900 ft AGL. Transport winds.....Southwest 5 to 10 mph. Smoke dispersal.....430-570 (good). Pcpn Amount.........None. .FRIDAY NIGHT... Sky/weather.........Partly cloudy (50-60 percent) until 2 AM, then mostly cloudy (70-80 percent). Min temperature.....58-63. 24 hr trend......5 degrees warmer. Max humidity........95-100 percent. 24 hr trend......Unchanged. 20-foot winds.......Southwest winds 5 to 6 mph. Mixing height.......700-1200 ft AGL. Transport winds.....West around 10 mph. Smoke dispersal.....100 (poor). Pcpn Amount.........none to 0.01 in. .SATURDAY... Sky/weather.........Partly sunny (45-55 percent) until 2 PM, then sunny (15-25 percent). Chance of showers until 5 PM. Chance of pcpn......40 percent. Max temperature.....78-83. 24 hr trend......4 degrees cooler. Min humidity........46-51 percent. 24 hr trend......3 percent wetter. 20-foot winds.......West winds 7 to 12 mph. Mixing height.......5200-5700 ft AGL. Transport winds.....West 15 to 20 mph. Smoke dispersal.....910-1100 (excellent). Pcpn Amount.........None to 0.25 in. $$ MIZ050-056-064-071-220815- Muskegon-Ottawa-Allegan-Van Buren- Including the cities of Muskegon, Grand Haven, Jenison, Holland, and South Haven 434 PM EDT Thu Aug 21 2025 .TONIGHT... Sky/weather.........Mostly clear (10-20 percent). Areas of fog after 2 AM. Min temperature.....56-61. 24 hr trend......2 degrees cooler. Max humidity........95-100 percent. 24 hr trend......Unchanged. 20-foot winds.......Light winds. Mixing height.......1000-1500 ft AGL. Transport winds.....North around 5 mph shifting to the east overnight. Smoke dispersal.....30-100 (poor). Pcpn Amount.........None. .FRIDAY... Sky/weather.........Sunny (15-25 percent). Areas of fog until 9 AM. Max temperature.....79-84. 24 hr trend......1 degree warmer. Min humidity........51-56 percent. 24 hr trend......2 percent drier. 20-foot winds.......Light winds becoming west around 8 mph in the afternoon. Mixing height.......2800-3300 ft AGL near Lake Michigan and 4900-5400 ft AGL Inland. Transport winds.....South around 5 mph shifting to the west in the afternoon. Smoke dispersal.....270-350 (fair to good). Pcpn Amount.........None. .FRIDAY NIGHT... Sky/weather.........Partly cloudy (35-45 percent) until 2 AM, then mostly cloudy (65-75 percent). Min temperature.....61-66. 24 hr trend......7 degrees warmer. Max humidity........95-100 percent. 24 hr trend......Unchanged. 20-foot winds.......Southwest winds 5 to 6 mph. Mixing height.......600-1100 ft AGL. Transport winds.....West 5 to 10 mph. Smoke dispersal.....60-100 (poor). Pcpn Amount.........none to 0.02 in. .SATURDAY... Sky/weather.........Partly sunny (50-60 percent) until 2 PM, then sunny (15-25 percent). Chance of showers until 5 PM. Chance of pcpn......30 percent. Max temperature.....75-80. 24 hr trend......4 degrees cooler. Min humidity........55-60 percent. 24 hr trend......8 percent wetter. 20-foot winds.......West winds 6 to 11 mph. Mixing height.......3600-4100 ft AGL near Lake Michigan and 4200-4700 ft AGL Inland. Transport winds.....West 15 to 20 mph. Smoke dispersal.....670-840 (excellent). Pcpn Amount.........none to 0.05 in. $$ MIZ051-052-057>059-220815- Montcalm-Gratiot-Kent-Ionia-Clinton- Including the cities of Greenville, Alma, Grand Rapids, Ionia, and St. Johns 434 PM EDT Thu Aug 21 2025 .TONIGHT... Sky/weather.........Mostly clear (15-25 percent). Areas of fog after 2 AM. Min temperature.....55-60. 24 hr trend......5 degrees cooler. Max humidity........98 percent. 24 hr trend......Unchanged. 20-foot winds.......East winds 5 to 6 mph. Mixing height.......800-1300 ft AGL. Transport winds.....East around 5 mph. Smoke dispersal.....30-50 (poor). Pcpn Amount.........None. .FRIDAY... Sky/weather.........Mostly sunny (20-30 percent). Areas of fog until 9 AM. Max temperature.....Around 83. 24 hr trend......3 degrees warmer. Min humidity........44-49 percent. 24 hr trend......7 percent drier. 20-foot winds.......Light winds becoming west around 7 mph in the afternoon. Mixing height.......5000-5500 ft AGL. Transport winds.....Southwest around 5 mph. Smoke dispersal.....260-400 (fair to good). Pcpn Amount.........None. .FRIDAY NIGHT... Sky/weather.........Partly cloudy (45-55 percent) until 5 AM, then mostly cloudy (65-75 percent). Min temperature.....Around 63. 24 hr trend......6 degrees warmer. Max humidity........95-100 percent. 24 hr trend......Unchanged. 20-foot winds.......Southwest winds 5 to 7 mph. Mixing height.......1000-1500 ft AGL. Transport winds.....West 5 to 10 mph. Smoke dispersal.....50-60 (poor). Pcpn Amount.........None. .SATURDAY... Sky/weather.........Mostly sunny (35-45 percent). Chance of showers. Chance of thunderstorms after 11 AM. Chance of pcpn......50 percent. Max temperature.....Around 80. 24 hr trend......3 degrees cooler. Min humidity........50-55 percent. 24 hr trend......7 percent wetter. 20-foot winds.......West winds 8 to 13 mph. Gusts up to 22 mph in the afternoon. Mixing height.......5200-5700 ft AGL. Transport winds.....West 15 to 20 mph. Smoke dispersal.....880-1100 (excellent). Pcpn Amount.........none to 0.05 in. $$ MIZ065>067-072>074-220815- Barry-Eaton-Ingham-Kalamazoo-Calhoun-Jackson- Including the cities of Hastings, Charlotte, Lansing, Kalamazoo, Battle Creek, and Jackson 434 PM EDT Thu Aug 21 2025 .TONIGHT... Sky/weather.........Mostly clear (10-20 percent). Areas of fog after 2 AM. Min temperature.....Around 57. 24 hr trend......3 degrees cooler. Max humidity........100 percent. 24 hr trend......Unchanged. 20-foot winds.......Northeast winds 5 to 6 mph. Mixing height.......900-1400 ft AGL. Transport winds.....East around 5 mph. Smoke dispersal.....30-70 (poor). Pcpn Amount.........None. .FRIDAY... Sky/weather.........Sunny (10-20 percent). Areas of fog until 9 AM. Max temperature.....Around 83. 24 hr trend......3 degrees warmer. Min humidity........46-51 percent. 24 hr trend......11 percent drier. 20-foot winds.......Southwest winds 5 to 6 mph. Mixing height.......4900-5400 ft AGL. Transport winds.....Southeast around 5 mph shifting to the west in the afternoon. Smoke dispersal.....140-230 (fair). Pcpn Amount.........None. .FRIDAY NIGHT... Sky/weather.........Partly cloudy (40-50 percent). Min temperature.....Around 61. 24 hr trend......5 degrees warmer. Max humidity........95-100 percent. 24 hr trend......Unchanged. 20-foot winds.......Southwest winds up to 5 mph. Mixing height.......500-1000 ft AGL. Transport winds.....West 5 to 10 mph. Smoke dispersal.....40 (poor). Pcpn Amount.........None. .SATURDAY... Sky/weather.........Mostly sunny (45-55 percent). Chance of showers. Chance of pcpn......40 percent. Max temperature.....Around 80. 24 hr trend......3 degrees cooler. Min humidity........58-63 percent. 24 hr trend......13 percent wetter. 20-foot winds.......West winds 6 to 11 mph. Gusts up to 20 mph in the afternoon. Mixing height.......5100-5600 ft AGL. Transport winds.....West 15 to 20 mph. Smoke dispersal.....710-930 (excellent). Pcpn Amount.........none to 0.02 in. $$ .FORECAST FOR DAYS 3 THROUGH 7... .SATURDAY NIGHT...Mostly clear. Lows in the mid 50s. West winds 5 to 9 mph. .SUNDAY...Mostly sunny with a chance of showers. Highs in the lower 70s. West winds 6 to 11 mph. .SUNDAY NIGHT...Partly cloudy with a chance of showers. Lows in the lower 50s. West winds 5 to 10 mph. .MONDAY...Partly sunny. Highs in the upper 60s. Northwest winds 7 to 12 mph. .MONDAY NIGHT...Partly cloudy. Lows in the upper 40s. Northwest winds 5 to 9 mph. .TUESDAY...Sunny. Highs in the upper 60s. Northwest winds 5 to 10 mph. .TUESDAY NIGHT...Mostly clear. Lows in the mid 40s. .WEDNESDAY...Sunny. Highs in the lower 70s. .WEDNESDAY NIGHT...Mostly clear. Lows around 50. .THURSDAY...Mostly sunny. Highs in the mid 70s. $$