372
FNUS53 KGRR 170836
FWFGRR

Fire Weather Planning Forecast for Southwest Lower Michigan
National Weather Service Grand Rapids MI
436 AM EDT Fri Oct 17 2025

...A Wet and Windy Weekend Ahead...

.DISCUSSION...
Some light rain spreading across Central Lower Michigan early this
morning will exit to the east midday. A cold front will approach the
area tonight and Saturday from the west. This front will bring
widespread rain into Saturday. A strong fall low pressure system will
lift northeast through the Great Lakes on Sunday bringing heavy rain
and strong winds.

MIZ037>039-043>045-172015-
Mason-Lake-Osceola-Oceana-Newaygo-Mecosta-
Including the cities of Ludington, Baldwin, Reed City, Hart,
Fremont, and Big Rapids
436 AM EDT Fri Oct 17 2025

.TODAY...
Sky/weather.........Cloudy (85-95 percent). Chance of rain showers
                    until 11 AM.
Chance of pcpn......30 percent until late afternoon.
Max temperature.....66-71.
   24 hr trend......2 degrees warmer.
Min humidity........56-61 percent near Lake Michigan and 47-52
                    percent Inland.
   24 hr trend......11 percent wetter near Lake Michigan and 9
                    percent wetter Inland.
20-foot winds.......South winds 8 to 13 mph. Gusts up to 23 mph in
                    the afternoon.
Mixing height.......1600-2100 ft AGL.
Transport winds.....South 15 to 20 mph.
Smoke dispersal.....210-380 (fair to good).
Pcpn Amount.........none to 0.03 in.

.TONIGHT...
Sky/weather.........Mostly cloudy (75-85 percent) until 3 AM, then
                    partly cloudy (60-70 percent). Chance of rain
                    showers after 11 PM until 5 AM. Slight chance
                    of thunderstorms after 2 AM. Rain showers
                    likely after 5 AM.
Chance of pcpn......60 percent in the late evening and
overnight.
Min temperature.....51-56.
   24 hr trend......9 degrees warmer.
Max humidity........95-100 percent.
   24 hr trend......Unchanged.
20-foot winds.......South winds 9 to 14 mph and gusty.
Mixing height.......1000-1500 ft AGL.
Transport winds.....South around 15 mph.
Smoke dispersal.....120-250 (poor to fair).
Pcpn Amount.........0.01-0.22 in.

.SATURDAY...
Sky/weather.........Mostly cloudy (80-90 percent). Rain showers and
                    a chance of thunderstorms.
Chance of pcpn......80 percent.
Max temperature.....64-69.
   24 hr trend......Unchanged.
Min humidity........78-83 percent near Lake Michigan and 64-69
                    percent Inland.
   24 hr trend......15 percent wetter near Lake Michigan and 20
                    percent wetter Inland.
20-foot winds.......Southwest winds 7 to 12 mph.
Mixing height.......1400-1900 ft AGL.
Transport winds.....Southwest around 15 mph.
Smoke dispersal.....260-340 (fair to good).
Pcpn Amount.........0.24-0.52 in.


$$

MIZ040-046-172015-
Clare-Isabella-
Including the cities of Clare and Mount Pleasant
436 AM EDT Fri Oct 17 2025

.TODAY...
Sky/weather.........Cloudy (85-95 percent). Chance of rain showers
                    until 11 AM.
Chance of pcpn......40 percent in the morning.
Max temperature.....Around 66.
   24 hr trend......4 degrees warmer.
Min humidity........46-51 percent.
   24 hr trend......19 percent wetter.
20-foot winds.......South winds 6 to 11 mph.
Mixing height.......1400-1900 ft AGL.
Transport winds.....South 10 to 15 mph.
Smoke dispersal.....180-320 (fair to good).
Pcpn Amount.........none to 0.03 in.

.TONIGHT...
Sky/weather.........Cloudy (85-95 percent) until 3 AM, then partly
                    cloudy (50-60 percent). Chance of rain showers
                    after 2 AM.
Chance of pcpn......40 percent after midnight.
Min temperature.....Around 52.
   24 hr trend......9 degrees warmer.
Max humidity........95-100 percent.
   24 hr trend......Unchanged.
20-foot winds.......South winds 7 to 12 mph.
Mixing height.......800-1300 ft AGL.
Transport winds.....South around 15 mph.
Smoke dispersal.....100-170 (poor to fair).
Pcpn Amount.........none to 0.08 in.

.SATURDAY...
Sky/weather.........Mostly cloudy (75-85 percent). Chance of rain
                    showers until 8 AM, then rain showers and a
                    chance of thunderstorms.
Chance of pcpn......80 percent.
Max temperature.....66-71.
   24 hr trend......1 degree cooler.
Min humidity........64-69 percent.
   24 hr trend......15 percent wetter.
20-foot winds.......Southwest winds 6 to 11 mph.
Mixing height.......1600-2100 ft AGL.
Transport winds.....Southwest around 15 mph.
Smoke dispersal.....230-380 (fair to good).
Pcpn Amount.........0.27-0.50 in.


$$

MIZ050-056-064-071-172015-
Muskegon-Ottawa-Allegan-Van Buren-
Including the cities of Muskegon, Grand Haven, Jenison, Holland,
and South Haven
436 AM EDT Fri Oct 17 2025

.TODAY...
Sky/weather.........Mostly cloudy (70-80 percent).
Max temperature.....68-73.
   24 hr trend......6 degrees warmer.
Min humidity........38-43 percent.
   24 hr trend......3 percent drier.
20-foot winds.......South winds 8 to 13 mph.
Mixing height.......2000-2500 ft AGL.
Transport winds.....South around 15 mph.
Smoke dispersal.....220-420 (fair to good).
Pcpn Amount.........None.

.TONIGHT...
Sky/weather.........Mostly cloudy (65-75 percent) until 12 AM, then
                    partly cloudy (55-65 percent). Chance of rain
                    showers and a slight chance of thunderstorms
                    after 2 AM.
Chance of pcpn......30 percent after midnight.
Min temperature.....Around 57.
   24 hr trend......11 degrees warmer.
Max humidity........95-100 percent.
   24 hr trend......Unchanged.
20-foot winds.......South winds 9 to 14 mph and gusty.
Mixing height.......1000-1500 ft AGL.
Transport winds.....South 15 to 20 mph.
Smoke dispersal.....120-230 (poor to fair).
Pcpn Amount.........None to 0.15 in.

.SATURDAY...
Sky/weather.........Mostly cloudy (75-85 percent). Chance of rain
                    showers until 8 AM. Chance of thunderstorms.
                    Rain showers after 8 AM.
Chance of pcpn......90 percent.
Max temperature.....70-75.
   24 hr trend......2 degrees cooler.
Min humidity........60-65 percent.
   24 hr trend......22 percent wetter.
20-foot winds.......Southwest winds 8 to 13 mph. Gusts up to 21 mph
                    in the afternoon.
Mixing height.......1200-1700 ft AGL near Lake Michigan and
                    2200-2700 ft AGL Inland.
Transport winds.....Southwest 15 to 20 mph.
Smoke dispersal.....300-540 (good).
Pcpn Amount.........0.24-0.58 in.


$$

MIZ051-052-057>059-172015-
Montcalm-Gratiot-Kent-Ionia-Clinton-
Including the cities of Greenville, Alma, Grand Rapids, Ionia,
and St. Johns
436 AM EDT Fri Oct 17 2025

.TODAY...
Sky/weather.........Mostly cloudy (80-90 percent).
Max temperature.....Around 69.
   24 hr trend......4 degrees warmer.
Min humidity........39-44 percent.
   24 hr trend......7 percent wetter.
20-foot winds.......South winds 7 to 12 mph.
Mixing height.......2100-2600 ft AGL.
Transport winds.....South 10 to 15 mph.
Smoke dispersal.....190-360 (fair to good).
Pcpn Amount.........None.

.TONIGHT...
Sky/weather.........Mostly cloudy (75-85 percent) until 3 AM, then
                    partly cloudy (45-55 percent). Chance of rain
                    showers after 2 AM. Slight chance of
                    thunderstorms after 5 AM.
Chance of pcpn......30 percent after midnight.
Min temperature.....51-56.
   24 hr trend......10 degrees warmer.
Max humidity........88-93 percent.
   24 hr trend......Unchanged.
20-foot winds.......South winds 8 to 13 mph.
Mixing height.......700-1200 ft AGL.
Transport winds.....South around 15 mph.
Smoke dispersal.....100-150 (poor to fair).
Pcpn Amount.........none to 0.09 in.

.SATURDAY...
Sky/weather.........Partly sunny (60-70 percent) until 3 PM, then
                    cloudy (85-95 percent). Chance of rain showers
                    until 8 AM. Chance of thunderstorms. Rain
                    showers after 8 AM.
Chance of pcpn......90 percent.
Max temperature.....70-75.
   24 hr trend......3 degrees warmer.
Min humidity........59-64 percent.
   24 hr trend......19 percent wetter.
20-foot winds.......Southwest winds 9 to 14 mph.
Mixing height.......2800-3300 ft AGL.
Transport winds.....Southwest 15 to 20 mph.
Smoke dispersal.....290-540 (fair to good).
Pcpn Amount.........0.13-0.53 in.


$$

MIZ065>067-072>074-172015-
Barry-Eaton-Ingham-Kalamazoo-Calhoun-Jackson-
Including the cities of Hastings, Charlotte, Lansing, Kalamazoo,
Battle Creek, and Jackson
436 AM EDT Fri Oct 17 2025

.TODAY...
Sky/weather.........Mostly cloudy (70-80 percent).
Max temperature.....Around 69.
   24 hr trend......5 degrees warmer.
Min humidity........36-41 percent.
   24 hr trend......2 percent wetter.
20-foot winds.......South winds 7 to 12 mph.
Mixing height.......2300-2800 ft AGL.
Transport winds.....South around 15 mph.
Smoke dispersal.....190-460 (fair to good).
Pcpn Amount.........None.

.TONIGHT...
Sky/weather.........Mostly cloudy (75-85 percent) until 3 AM, then
                    partly cloudy (50-60 percent).
Min temperature.....51-56.
   24 hr trend......12 degrees warmer.
Max humidity........85-90 percent.
   24 hr trend......9 percent drier.
20-foot winds.......South winds 8 to 13 mph.
Mixing height.......800-1300 ft AGL.
Transport winds.....South around 15 mph.
Smoke dispersal.....90-160 (poor to fair).
Pcpn Amount.........None.

.SATURDAY...
Sky/weather.........Mostly sunny (45-55 percent) until 12 PM, then
                    mostly cloudy (75-85 percent). Chance of rain
                    showers until 2 PM. Chance of thunderstorms
                    after 8 AM. Rain showers after 2 PM.
Chance of pcpn......80 percent.
Max temperature.....75-80.
   24 hr trend......5 degrees warmer.
Min humidity........53-58 percent.
   24 hr trend......20 percent wetter.
20-foot winds.......Southwest winds 9 to 14 mph with higher gusts.
Mixing height.......1100-1600 ft AGL increasing to 3700-4200 ft AGL
                    in the afternoon.
Transport winds.....Southwest 15 to 20 mph.
Smoke dispersal.....330 (good) increasing to 960 (excellent) in the
                    afternoon.
Pcpn Amount.........0.07-0.39 in.


$$

.FORECAST FOR DAYS 3 THROUGH 7...

.SATURDAY NIGHT...Cloudy with showers. Chance of thunderstorms. Lows
around 50. Southwest winds 5 to 10 mph.
.SUNDAY...Slight chance of thunderstorms in the morning. Mostly
cloudy with showers. Highs in the upper 50s. Northwest winds 9 to
14 mph.
.SUNDAY NIGHT...Colder. Partly cloudy. Showers likely in the
evening. Lows in the upper 30s. Northwest winds 9 to 14 mph.
.MONDAY...Sunny. Highs in the lower 60s. Southwest winds 7 to
12 mph.
.MONDAY NIGHT...Partly cloudy. Chance of showers in the evening,
then showers likely after midnight. Lows in the mid 40s. Southwest
winds 8 to 13 mph.
.TUESDAY...Partly sunny with a chance of showers. Highs in the mid
50s. West winds 10 to 15 mph.
.TUESDAY NIGHT...Partly cloudy with a chance of showers. Lows around
40.
.WEDNESDAY...Partly sunny. Highs in the mid 50s.
.WEDNESDAY NIGHT...Partly cloudy with a chance of showers. Lows in
the upper 30s.
.THURSDAY...Mostly cloudy with a chance of showers. Highs in the mid
50s.

$$