839
FNUS53 KGRR 171947
FWFGRR

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

...Rainy and Windy Weekend...

.DISCUSSION...
A developing low pressure system will provide occasional rain
and a chance of an embedded thunderstorm along with breezy winds
through the weekend.

MIZ037>039-043>045-180830-
Mason-Lake-Osceola-Oceana-Newaygo-Mecosta-
Including the cities of Ludington, Baldwin, Reed City, Hart,
Fremont, and Big Rapids
347 PM EDT Fri Oct 17 2025

.TONIGHT...
Sky/weather.........Mostly cloudy (70-80 percent) until 12 AM, then
                    partly cloudy (60-70 percent) until 3 AM, then
                    mostly cloudy (65-75 percent). Chance of rain
                    showers after 12 AM. Chance of thunderstorms
                    after 2 AM.
Chance of pcpn......30 percent after midnight.
Min temperature.....52-57.
   24 hr trend......7 degrees warmer.
Max humidity........95-100 percent.
   24 hr trend......Unchanged.
20-foot winds.......South winds 10 to 15 mph and gusty.
Mixing height.......1300-1800 ft AGL.
Transport winds.....South around 15 mph.
Smoke dispersal.....110-290 (poor to fair).
Pcpn Amount.........0.01-0.22 in.

.SATURDAY...
Sky/weather.........Cloudy (85-95 percent). Rain showers until 2
                    PM. Chance of thunderstorms. Chance of rain
                    showers after 2 PM.
Chance of pcpn......80 percent.
Max temperature.....Around 67.
   24 hr trend......1 degree warmer.
Min humidity........78-83 percent near Lake Michigan and 64-69
                    percent Inland.
   24 hr trend......18 percent wetter near Lake Michigan and 23
                    percent wetter Inland.
20-foot winds.......Southwest winds 8 to 13 mph.
Mixing height.......1700-2200 ft AGL.
Transport winds.....Southwest around 15 mph.
Smoke dispersal.....250-370 (fair to good).
Pcpn Amount.........0.24-0.52 in.

.SATURDAY NIGHT...
Sky/weather.........Cloudy (85-95 percent). Chance of rain showers
                    until 2 AM. Chance of thunderstorms. Rain
                    showers after 2 AM.
Chance of pcpn......near 100 percent.
Min temperature.....44-49.
   24 hr trend......10 degrees cooler.
Max humidity........100 percent.
   24 hr trend......Unchanged.
20-foot winds.......South winds around 5 mph in the evening
                    becoming light.
Mixing height.......1000-1500 ft AGL.
Transport winds.....South 5 to 10 mph.
Smoke dispersal.....90-170 (poor to fair).
Pcpn Amount.........0.30-0.86 in.

.SUNDAY...
Sky/weather.........Cloudy (85-95 percent). Rain showers until 2
                    PM, then a chance of rain showers.
Chance of pcpn......near 100 percent.
Max temperature.....56-61.
   24 hr trend......11 degrees cooler.
Min humidity........61-66 percent.
   24 hr trend......11 percent wetter.
20-foot winds.......Northwest winds 11 to 16 mph. Gusts up to 27
                    mph in the afternoon.
Mixing height.......4100-4600 ft AGL near Lake Michigan and
                    2600-3100 ft AGL Inland.
Transport winds.....North around 15 mph increasing to northwest
                    around 30 mph in the afternoon.
Smoke dispersal.....670-1160 (excellent).
Pcpn Amount.........0.60-0.81 in.


$$

MIZ040-046-180830-
Clare-Isabella-
Including the cities of Clare and Mount Pleasant
347 PM EDT Fri Oct 17 2025

.TONIGHT...
Sky/weather.........Mostly cloudy (75-85 percent) until 12 AM, then
                    partly cloudy (60-70 percent). Chance of rain
                    showers after 3 AM. Slight chance of
                    thunderstorms after 5 AM.
Chance of pcpn......30 percent late in the night.
Min temperature.....49-54.
   24 hr trend......10 degrees warmer.
Max humidity........95-100 percent.
   24 hr trend......Unchanged.
20-foot winds.......South winds 8 to 13 mph.
Mixing height.......800-1300 ft AGL.
Transport winds.....South around 15 mph.
Smoke dispersal.....100-180 (poor to fair).
Pcpn Amount.........none to 0.08 in.

.SATURDAY...
Sky/weather.........Mostly cloudy (80-90 percent). Rain showers and
                    a chance of thunderstorms.
Chance of pcpn......80 percent.
Max temperature.....66-71.
   24 hr trend......1 degree warmer.
Min humidity........62-67 percent.
   24 hr trend......16 percent wetter.
20-foot winds.......Southwest winds 8 to 13 mph.
Mixing height.......1800-2300 ft AGL.
Transport winds.....Southwest 15 to 20 mph.
Smoke dispersal.....250-430 (fair to good).
Pcpn Amount.........0.27-0.50 in.

.SATURDAY NIGHT...
Sky/weather.........Cloudy (90-100 percent). Chance of rain showers
                    until 8 PM. Chance of thunderstorms. Rain
                    showers after 8 PM.
Chance of pcpn......near 100 percent.
Min temperature.....45-50.
   24 hr trend......2 degrees cooler.
Max humidity........100 percent.
   24 hr trend......Unchanged.
20-foot winds.......Southwest winds around 5 mph in the evening
                    becoming light.
Mixing height.......1000-1500 ft AGL.
Transport winds.....Southwest around 10 mph.
Smoke dispersal.....90-200 (poor to fair).
Pcpn Amount.........0.48-0.78 in.

.SUNDAY...
Sky/weather.........Cloudy (85-95 percent). Rain showers.
Chance of pcpn......90 percent.
Max temperature.....56-61.
   24 hr trend......9 degrees cooler.
Min humidity........74-79 percent.
   24 hr trend......20 percent wetter.
20-foot winds.......Northwest winds 9 to 14 mph.
Mixing height.......2300-2800 ft AGL.
Transport winds.....North around 15 mph increasing to northwest
                    around 25 mph in the afternoon.
Smoke dispersal.....410-840 (good to excellent).
Pcpn Amount.........0.76-0.93 in.


$$

MIZ050-056-064-071-180830-
Muskegon-Ottawa-Allegan-Van Buren-
Including the cities of Muskegon, Grand Haven, Jenison, Holland,
and South Haven
347 PM EDT Fri Oct 17 2025

.TONIGHT...
Sky/weather.........Mostly cloudy (70-80 percent) until 9 PM, then
                    partly cloudy (60-70 percent). Chance of rain
                    showers after 1 AM. Chance of thunderstorms
                    after 5 AM.
Chance of pcpn......30 percent after midnight.
Min temperature.....Around 58.
   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 15 to 20 mph.
Smoke dispersal.....110-200 (poor to fair).
Pcpn Amount.........None to 0.15 in.

.SATURDAY...
Sky/weather.........Mostly cloudy (80-90 percent). Chance of rain
                    showers until 7 AM. Chance of thunderstorms.
                    Rain showers after 7 AM.
Chance of pcpn......90 percent.
Max temperature.....69-74.
   24 hr trend......2 degrees cooler.
Min humidity........62-67 percent.
   24 hr trend......20 percent wetter.
20-foot winds.......Southwest winds 10 to 15 mph.
Mixing height.......1100-1600 ft AGL near Lake Michigan and
                    2100-2600 ft AGL Inland.
Transport winds.....Southwest 15 to 20 mph.
Smoke dispersal.....270-500 (fair to good).
Pcpn Amount.........0.24-0.58 in.

.SATURDAY NIGHT...
Sky/weather.........Cloudy (90-100 percent). Chance of
                    thunderstorms until 5 AM. Rain showers.
Chance of pcpn......near 100 percent.
Min temperature.....Around 51.
   24 hr trend......9 degrees cooler.
Max humidity........100 percent.
   24 hr trend......Unchanged.
20-foot winds.......South winds 5 to 9 mph.
Mixing height.......900-1400 ft AGL.
Transport winds.....Southwest 10 to 15 mph.
Smoke dispersal.....130-210 (fair).
Pcpn Amount.........0.40-1.32 in.

.SUNDAY...
Sky/weather.........Cloudy (85-95 percent). Rain showers.
Chance of pcpn......near 100 percent.
Max temperature.....57-62.
   24 hr trend......9 degrees cooler.
Min humidity........61-66 percent.
   24 hr trend......7 percent wetter.
20-foot winds.......Northwest winds 13 to 18 mph. Gusts up to 31
                    mph in the afternoon.
Mixing height.......3500-4000 ft AGL.
Transport winds.....Northwest around 20 mph increasing to around 30
                    mph in the afternoon.
Smoke dispersal.....640-1160 (excellent).
Pcpn Amount.........0.64-1.06 in.


$$

MIZ051-052-057>059-180830-
Montcalm-Gratiot-Kent-Ionia-Clinton-
Including the cities of Greenville, Alma, Grand Rapids, Ionia,
and St. Johns
347 PM EDT Fri Oct 17 2025

.TONIGHT...
Sky/weather.........Mostly cloudy (70-80 percent) until 12 AM, then
                    partly cloudy (60-70 percent). Slight chance of
                    rain showers after 3 AM. Slight chance of
                    thunderstorms after 5 AM.
Chance of pcpn......20 percent late in the night.
Min temperature.....52-57.
   24 hr trend......11 degrees warmer.
Max humidity........91-96 percent.
   24 hr trend......Unchanged.
20-foot winds.......South winds 9 to 14 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.........Mostly cloudy (70-80 percent). Chance of rain
                    showers until 7 AM. Chance of thunderstorms.
                    Rain showers after 7 AM.
Chance of pcpn......90 percent.
Max temperature.....69-74.
   24 hr trend......3 degrees warmer.
Min humidity........59-64 percent.
   24 hr trend......17 percent wetter.
20-foot winds.......Southwest winds 9 to 14 mph.
Mixing height.......2200-2700 ft AGL.
Transport winds.....Southwest 15 to 20 mph.
Smoke dispersal.....260-530 (fair to good).
Pcpn Amount.........0.13-0.53 in.

.SATURDAY NIGHT...
Sky/weather.........Cloudy (85-95 percent). Rain showers and a
                    chance of thunderstorms.
Chance of pcpn......near 100 percent.
Min temperature.....50-55.
   24 hr trend......4 degrees cooler.
Max humidity........100 percent.
   24 hr trend......Unchanged.
20-foot winds.......South winds 5 to 9 mph.
Mixing height.......900-1400 ft AGL.
Transport winds.....Southwest around 10 mph.
Smoke dispersal.....110-200 (poor to fair).
Pcpn Amount.........0.64-1.16 in.

.SUNDAY...
Sky/weather.........Cloudy (85-95 percent). Rain showers.
Chance of pcpn......near 100 percent.
Max temperature.....58-63.
   24 hr trend......12 degrees cooler.
Min humidity........77-82 percent.
   24 hr trend......22 percent wetter.
20-foot winds.......West winds 11 to 16 mph.
Mixing height.......2300-2800 ft AGL.
Transport winds.....Northwest around 15 mph increasing to around 25
                    mph in the afternoon.
Smoke dispersal.....530-810 (good to excellent).
Pcpn Amount.........0.68-1.10 in.


$$

MIZ065>067-072>074-180830-
Barry-Eaton-Ingham-Kalamazoo-Calhoun-Jackson-
Including the cities of Hastings, Charlotte, Lansing, Kalamazoo,
Battle Creek, and Jackson
347 PM EDT Fri Oct 17 2025

.TONIGHT...
Sky/weather.........Mostly cloudy (70-80 percent) until 12 AM, then
                    partly cloudy (60-70 percent).
Min temperature.....51-56.
   24 hr trend......10 degrees warmer.
Max humidity........85-90 percent.
   24 hr trend......Unchanged.
20-foot winds.......South winds 9 to 14 mph.
Mixing height.......900-1400 ft AGL.
Transport winds.....South around 15 mph.
Smoke dispersal.....90-170 (poor to fair).
Pcpn Amount.........none to 0.01 in.

.SATURDAY...
Sky/weather.........Partly sunny (65-75 percent). Chance of rain
                    showers until 2 PM. Chance of thunderstorms
                    after 8 AM. Rain showers after 2 PM.
Chance of pcpn......90 percent.
Max temperature.....73-78.
   24 hr trend......4 degrees warmer.
Min humidity........55-60 percent.
   24 hr trend......22 percent wetter.
20-foot winds.......Southwest winds 10 to 15 mph.
Mixing height.......1100-1600 ft AGL increasing to 3600-4100 ft AGL
                    in the afternoon.
Transport winds.....Southwest 15 to 20 mph.
Smoke dispersal.....290-830 (fair to excellent).
Pcpn Amount.........0.07-0.39 in.

.SATURDAY NIGHT...
Sky/weather.........Cloudy (85-95 percent). Chance of thunderstorms
                    until 5 AM. Rain showers.
Chance of pcpn......near 100 percent.
Min temperature.....50-55.
   24 hr trend......2 degrees cooler.
Max humidity........100 percent.
   24 hr trend......Unchanged.
20-foot winds.......South winds 6 to 11 mph.
Mixing height.......1200-1700 ft AGL.
Transport winds.....Southwest around 15 mph.
Smoke dispersal.....170-230 (fair).
Pcpn Amount.........0.53-1.33 in.

.SUNDAY...
Sky/weather.........Cloudy (85-95 percent). Rain showers.
Chance of pcpn......near 100 percent.
Max temperature.....60-65.
   24 hr trend......11 degrees cooler.
Min humidity........80-85 percent.
   24 hr trend......25 percent wetter.
20-foot winds.......Southwest winds around 12 mph shifting to the
                    west in the afternoon. Gusts up to 28 mph.
Mixing height.......2400-2900 ft AGL.
Transport winds.....West 20 to 25 mph.
Smoke dispersal.....480-770 (good to excellent).
Pcpn Amount.........0.63-1.07 in.


$$

.FORECAST FOR DAYS 3 THROUGH 7...

.SUNDAY NIGHT...Partly cloudy. Showers likely in the evening. Lows
around 40. Northwest winds 8 to 13 mph.
.MONDAY...Mostly sunny. Highs in the lower 60s. Southwest winds 6 to
11 mph.
.MONDAY NIGHT...Partly cloudy with showers likely. Lows in the mid
40s. South winds 6 to 11 mph.
.TUESDAY...Partly sunny with a chance of showers. Highs in the lower
50s. West winds 9 to 14 mph.
.TUESDAY NIGHT...Partly cloudy with a chance of showers. Lows in the
upper 30s. West winds 7 to 12 mph.
.WEDNESDAY...Partly sunny. Highs in the lower 50s. Northwest winds
6 to 11 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the upper 30s.
.THURSDAY...Partly sunny. Highs in the mid 50s.
.THURSDAY NIGHT...Partly cloudy with a chance of showers. Lows in
the upper 30s.
.FRIDAY...Mostly sunny. Highs in the mid 50s.

$$