305
FNUS53 KGRR 240752
FWFGRR

Fire Weather Planning Forecast for Southwest Lower Michigan
National Weather Service Grand Rapids MI
352 AM EDT Sun Aug 24 2025

...Lake Effect Rain Showers Into Monday...

.DISCUSSION...

Northwest winds will pick up this afternoon with gusts around 20 mph.
Rain showers will be possible this afternoon and then focus along the
lakeshore for the evening and overnight hours into Monday. A few
rumbles of thunder are possible along the lakeshore. Showers may move
farther inland Monday before tapering off Monday evening.

Minimum relative humidity values will largely be in the 50s and then
drop into the 30s and 40s Tuesday into Wednesday. Another front looks
to move through Thursday bringing 20 to 30 percent chances for rain
during the day. Temperatures this week will be cooler with highs in
the 60s and 70s and lows in the 40s and 50s.


MIZ037>039-043>045-242015-
Mason-Lake-Osceola-Oceana-Newaygo-Mecosta-
Including the cities of Ludington, Baldwin, Reed City, Hart,
Fremont, and Big Rapids
352 AM EDT Sun Aug 24 2025

.TODAY...
Sky/weather.........Mostly sunny (25-35 percent) until 11 AM, then
                    mostly cloudy (70-80 percent). Chance of rain
                    showers. Slight chance of thunderstorms after 2
                    PM.
Chance of pcpn......50 percent.
Max temperature.....65-70.
   24 hr trend......6 degrees cooler.
Min humidity........63-68 percent near Lake Michigan and 55-60
                    percent Inland.
   24 hr trend......3 percent wetter near Lake Michigan and 10
                    percent wetter Inland.
20-foot winds.......West winds 8 to 13 mph.
Mixing height.......5000-5500 ft AGL.
Transport winds.....West 15 to 20 mph.
Smoke dispersal.....980-1080 (excellent).
Pcpn Amount.........none to 0.10 in.

.TONIGHT...
Sky/weather.........Mostly cloudy (75-85 percent). Slight chance of
                    thunderstorms until 2 AM. Chance of rain
                    showers.
Chance of pcpn......40 percent.
Min temperature.....49-54.
   24 hr trend......1 degree cooler.
Max humidity........85-90 percent near Lake Michigan and 95-100
                    percent Inland.

   24 hr trend......Unchanged.

20-foot winds.......Northwest winds 5 to 10 mph.
Mixing height.......3400-3900 ft AGL near Lake Michigan and
                    1700-2200 ft AGL Inland.
Transport winds.....Northwest 10 to 15 mph.
Smoke dispersal.....240-370 (fair to good).
Pcpn Amount.........0.01-0.23 in.

.MONDAY...
Sky/weather.........Partly sunny (45-55 percent). Chance of rain
                    showers.
Chance of pcpn......50 percent.
Max temperature.....64-69.
   24 hr trend......1 degree cooler.
Min humidity........48-53 percent.
   24 hr trend......7 percent drier.
20-foot winds.......Northwest winds 9 to 14 mph.
Mixing height.......5900-6400 ft AGL.
Transport winds.....Northwest around 15 mph.
Smoke dispersal.....1080-1160 (excellent).
Pcpn Amount.........none to 0.02 in.


$$

MIZ040-046-242015-
Clare-Isabella-
Including the cities of Clare and Mount Pleasant
352 AM EDT Sun Aug 24 2025

.TODAY...
Sky/weather.........Sunny (10-20 percent) until 11 AM, then partly
                    sunny (65-75 percent). Chance of rain showers
                    after 11 AM. Slight chance of thunderstorms
                    after 2 PM.
Chance of pcpn......50 percent.
Max temperature.....Around 70.
   24 hr trend......10 degrees cooler.
Min humidity........49-54 percent.
   24 hr trend......9 percent wetter.
20-foot winds.......West winds 9 to 14 mph.
Mixing height.......5400-5900 ft AGL.
Transport winds.....West 15 to 20 mph.
Smoke dispersal.....1050-1170 (excellent).
Pcpn Amount.........none to 0.05 in.

.TONIGHT...
Sky/weather.........Partly cloudy (60-70 percent). Slight chance of
                    rain showers until 11 PM. Slight chance of rain
                    showers after 2 AM.
Chance of pcpn......20 percent in the evening then
precipitation 20 percent overnight.
Min temperature.....Around 51.
   24 hr trend......1 degree cooler.
Max humidity........98 percent.
   24 hr trend......Unchanged.
20-foot winds.......West winds 5 to 10 mph.
Mixing height.......2700-3200 ft AGL.
Transport winds.....West 10 to 15 mph.
Smoke dispersal.....140-420 (fair to good).
Pcpn Amount.........None to 0.11 in.

.MONDAY...
Sky/weather.........Partly sunny (45-55 percent). Chance of rain
                    showers.
Chance of pcpn......40 percent.
Max temperature.....65-70.
   24 hr trend......2 degrees cooler.
Min humidity........47-52 percent.
   24 hr trend......1 percent wetter.
20-foot winds.......Northwest winds 9 to 14 mph.
Mixing height.......6200-6700 ft AGL.
Transport winds.....Northwest 15 to 20 mph.
Smoke dispersal.....1160-1220 (excellent).
Pcpn Amount.........none to 0.02 in.


$$

MIZ050-056-064-071-242015-
Muskegon-Ottawa-Allegan-Van Buren-
Including the cities of Muskegon, Grand Haven, Jenison, Holland,
and South Haven
352 AM EDT Sun Aug 24 2025

.TODAY...
Sky/weather.........Mostly sunny (45-55 percent). Chance of rain
                    showers. Slight chance of thunderstorms after 2
                    PM.
Chance of pcpn......40 percent.
Max temperature.....Around 69.
   24 hr trend......6 degrees cooler.
Min humidity........53-58 percent.
   24 hr trend......4 percent wetter.
20-foot winds.......West winds 9 to 14 mph.
Mixing height.......5200-5700 ft AGL.
Transport winds.....West 15 to 20 mph.
Smoke dispersal.....1070-1130 (excellent).
Pcpn Amount.........none to 0.04 in.

.TONIGHT...
Sky/weather.........Partly cloudy (65-75 percent) until 11 PM, then
                    mostly cloudy (70-80 percent). Slight chance of
                    thunderstorms until 11 PM. Chance of rain
                    showers.
Chance of pcpn......40 percent.
Min temperature.....53-58.
   24 hr trend......2 degrees cooler.
Max humidity........95-100 percent.
   24 hr trend......Unchanged.
20-foot winds.......Northwest winds 5 to 10 mph.
Mixing height.......Near Lake Michigan, 3300-3800 ft AGL.
Mixing height.......Inland, 3000-3500 ft AGL decreasing to 500-1000
                    ft AGL overnight.
Transport winds.....Northwest 10 to 15 mph.
Smoke dispersal.....250-450 (fair to good).
Pcpn Amount.........0.02-0.22 in.

.MONDAY...
Sky/weather.........Mostly sunny (40-50 percent). Chance of rain
                    showers.
Chance of pcpn......40 percent.
Max temperature.....65-70.
   24 hr trend......3 degrees cooler.
Min humidity........49-54 percent.
   24 hr trend......1 percent drier.
20-foot winds.......Northwest winds 9 to 14 mph.
Mixing height.......6100-6600 ft AGL.
Transport winds.....Northwest 15 to 20 mph.
Smoke dispersal.....1070-1240 (excellent).
Pcpn Amount.........none to 0.07 in.


$$

MIZ051-052-057>059-242015-
Montcalm-Gratiot-Kent-Ionia-Clinton-
Including the cities of Greenville, Alma, Grand Rapids, Ionia,
and St. Johns
352 AM EDT Sun Aug 24 2025

.TODAY...
Sky/weather.........Sunny (15-25 percent) until 11 AM, then partly
                    sunny (60-70 percent). Slight chance of rain
                    showers after 11 AM.
Chance of pcpn......20 percent.
Max temperature.....Around 71.
   24 hr trend......10 degrees cooler.
Min humidity........48-53 percent.
   24 hr trend......3 percent drier.
20-foot winds.......West winds 10 to 15 mph.
Mixing height.......5900-6400 ft AGL.
Transport winds.....West 15 to 20 mph.
Smoke dispersal.....1070-1230 (excellent).
Pcpn Amount.........none to 0.02 in.

.TONIGHT...
Sky/weather.........Partly cloudy (55-65 percent). Slight chance of
                    rain showers.
Chance of pcpn......20 percent.
Min temperature.....Around 53.
   24 hr trend......2 degrees cooler.
Max humidity........95-100 percent.
   24 hr trend......Unchanged.
20-foot winds.......West winds 5 to 10 mph.
Mixing height.......2200-2700 ft AGL.
Transport winds.....West 10 to 15 mph.
Smoke dispersal.....60-410 (poor to good).
Pcpn Amount.........none to 0.05 in.

.MONDAY...
Sky/weather.........Mostly sunny (45-55 percent). Chance of rain
                    showers.
Chance of pcpn......40 percent.
Max temperature.....Around 69.
   24 hr trend......1 degree cooler.
Min humidity........49-54 percent.
   24 hr trend......5 percent wetter.
20-foot winds.......Northwest winds 9 to 14 mph.
Mixing height.......6300-6800 ft AGL.
Transport winds.....Northwest around 15 mph.
Smoke dispersal.....1090-1180 (excellent).
Pcpn Amount.........none to 0.01 in.


$$

MIZ065>067-072>074-242015-
Barry-Eaton-Ingham-Kalamazoo-Calhoun-Jackson-
Including the cities of Hastings, Charlotte, Lansing, Kalamazoo,
Battle Creek, and Jackson
352 AM EDT Sun Aug 24 2025

.TODAY...
Sky/weather.........Partly sunny (45-55 percent). Slight chance of
                    rain showers.
Chance of pcpn......20 percent.
Max temperature.....Around 72.
   24 hr trend......9 degrees cooler.
Min humidity........49-54 percent.
   24 hr trend......7 percent drier.
20-foot winds.......West winds 9 to 14 mph.
Mixing height.......6000-6500 ft AGL.
Transport winds.....West 15 to 20 mph.
Smoke dispersal.....1060-1210 (excellent).
Pcpn Amount.........none to 0.03 in.

.TONIGHT...
Sky/weather.........Partly cloudy (50-60 percent). Slight chance of
                    rain showers.
Chance of pcpn......20 percent.
Min temperature.....50-55.
   24 hr trend......2 degrees cooler.
Max humidity........95-100 percent.
   24 hr trend......Unchanged.
20-foot winds.......West winds 5 to 9 mph.
Mixing height.......3000-3500 ft AGL decreasing to 400-900 ft AGL
                    overnight.
Transport winds.....West 10 to 15 mph.
Smoke dispersal.....60-330 (poor to good).
Pcpn Amount.........None to 0.12 in.

.MONDAY...
Sky/weather.........Mostly sunny (40-50 percent). Chance of rain
                    showers.
Chance of pcpn......40 percent.
Max temperature.....Around 68.
   24 hr trend......2 degrees cooler.
Min humidity........52-57 percent.
   24 hr trend......5 percent wetter.
20-foot winds.......Northwest winds 8 to 13 mph.
Mixing height.......6100-6600 ft AGL.
Transport winds.....Northwest around 15 mph.
Smoke dispersal.....970-1180 (excellent).
Pcpn Amount.........none to 0.04 in.


$$

.FORECAST FOR DAYS 3 THROUGH 7...

.MONDAY NIGHT...Mostly clear. Lows in the upper 40s. Northwest winds
5 to 7 mph in the evening becoming light.
.TUESDAY...Mostly sunny. Highs in the upper 60s. Northwest winds
5 to 10 mph.
.TUESDAY NIGHT...Mostly clear. Lows in the mid 40s. Northwest winds
5 to 6 mph in the evening becoming light.
.WEDNESDAY...Sunny. Highs in the lower 70s. West winds 5 to 10 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the lower 50s. Southwest
winds 5 to 9 mph.
.THURSDAY...Mostly sunny. Highs in the lower 70s. West winds 5 to
10 mph.
.THURSDAY NIGHT...Partly cloudy. Lows around 50.
.FRIDAY...Mostly sunny. Highs in the lower 70s.
.FRIDAY NIGHT...Partly cloudy. Lows in the upper 40s.
.SATURDAY...Mostly sunny. Highs in the mid 70s.

$$