608
FNUS53 KGRR 130803
FWFGRR

Fire Weather Planning Forecast for Southwest Lower Michigan
National Weather Service Grand Rapids MI
403 AM EDT Wed Aug 13 2025

...Near Normal Temperatures and a Bit Drier RH...

.DISCUSSION...
Some relief to the heat and humidity today and Thursday with
temperatures around mid-August normals and more reasonable
RH, and likely rain-free through Friday. Heat and humidity
return Saturday into Sunday along with a chance of
thunderstorms.


MIZ037>039-043>045-132030-
Mason-Lake-Osceola-Oceana-Newaygo-Mecosta-
Including the cities of Ludington, Baldwin, Reed City, Hart,
Fremont, and Big Rapids
403 AM EDT Wed Aug 13 2025

.TODAY...
Sky/weather.........Mostly sunny (25-35 percent). Areas of fog
                    until 9 AM.
Max temperature.....79-84.
   24 hr trend......8 degrees warmer.
Min humidity........54-59 percent near Lake Michigan and 42-47
                    percent Inland.
   24 hr trend......16 percent drier near Lake Michigan and 30
                    percent drier Inland.
20-foot winds.......Light winds becoming northwest around 8 mph in
                    the afternoon.
Mixing height.......3500-4000 ft AGL near Lake Michigan and
                    6400-6900 ft AGL Inland.
Transport winds.....North 5 to 10 mph.
Smoke dispersal.....580-630 (good to excellent).
Pcpn Amount.........None.

.TONIGHT...
Sky/weather.........Mostly clear (5-15 percent).
Min temperature.....52-57.
   24 hr trend......9 degrees cooler.
Max humidity........95-100 percent.
   24 hr trend......Unchanged.
20-foot winds.......North winds around 5 mph in the evening
                    becoming light.
Mixing height.......1000-1500 ft AGL.
Transport winds.....Northeast around 10 mph.
Smoke dispersal.....60-130 (poor to fair).
Pcpn Amount.........None.

.THURSDAY...
Sky/weather.........Sunny (10-20 percent).
Max temperature.....79-84.
   24 hr trend......2 degrees cooler.
Min humidity........52-57 percent near Lake Michigan and 40-45
                    percent Inland.
   24 hr trend......2 percent drier.
20-foot winds.......Light winds becoming north around 5 mph in the
                    afternoon.
Mixing height.......4000-4500 ft AGL near Lake Michigan and
                    6200-6700 ft AGL Inland.
Transport winds.....Northeast around 5 mph shifting to the
                    northwest in the afternoon.
Smoke dispersal.....240-310 (fair to good).
Pcpn Amount.........None.


$$

MIZ040-046-132030-
Clare-Isabella-
Including the cities of Clare and Mount Pleasant
403 AM EDT Wed Aug 13 2025

.TODAY...
Sky/weather.........Sunny (15-25 percent). Patchy fog until 9 AM.
Max temperature.....Around 84.
   24 hr trend......5 degrees warmer.
Min humidity........40-45 percent.
   24 hr trend......16 percent drier.
20-foot winds.......Light winds becoming northwest around 7 mph in
                    the afternoon.
Mixing height.......7600-8100 ft AGL.
Transport winds.....North 5 to 10 mph.
Smoke dispersal.....590-690 (good to excellent).
Pcpn Amount.........None.

.TONIGHT...
Sky/weather.........Mostly clear (20-30 percent).
Min temperature.....51-56.
   24 hr trend......8 degrees cooler.
Max humidity........95-100 percent.
   24 hr trend......Unchanged.
20-foot winds.......North winds around 6 mph in the evening
                    becoming light.
Mixing height.......1200-1700 ft AGL.
Transport winds.....North around 10 mph.
Smoke dispersal.....50-170 (poor to fair).
Pcpn Amount.........None.

.THURSDAY...
Sky/weather.........Sunny (10-20 percent).
Max temperature.....Around 82.
   24 hr trend......1 degree cooler.
Min humidity........40-45 percent.
   24 hr trend......1 percent wetter.
20-foot winds.......Northeast winds 5 to 6 mph.
Mixing height.......4500-5000 ft AGL increasing to 6500-7000 ft AGL
                    in the afternoon.
Transport winds.....North around 5 mph.
Smoke dispersal.....220-350 (fair to good).
Pcpn Amount.........None.


$$

MIZ050-056-064-071-132030-
Muskegon-Ottawa-Allegan-Van Buren-
Including the cities of Muskegon, Grand Haven, Jenison, Holland,
and South Haven
403 AM EDT Wed Aug 13 2025

.TODAY...
Sky/weather.........Sunny (20-30 percent). Patchy fog until 9 AM.
Max temperature.....80-85.
   24 hr trend......3 degrees cooler.
Min humidity........47-52 percent.
   24 hr trend......8 percent drier.
20-foot winds.......Light winds becoming northwest around 10 mph in
                    the afternoon.
Mixing height.......3800-4300 ft AGL near Lake Michigan and
                    6100-6600 ft AGL Inland.
Transport winds.....Northwest 5 to 10 mph.
Smoke dispersal.....460-550 (good).
Pcpn Amount.........None.

.TONIGHT...
Sky/weather.........Mostly clear (0-10 percent).
Min temperature.....57-62.
   24 hr trend......7 degrees cooler.
Max humidity........95-100 percent.
   24 hr trend......Unchanged.
20-foot winds.......North winds around 5 mph in the evening
                    becoming light.
Mixing height.......1000-1500 ft AGL.
Transport winds.....Northeast around 10 mph.
Smoke dispersal.....50-150 (poor to fair).
Pcpn Amount.........None.

.THURSDAY...
Sky/weather.........Sunny (10-20 percent).
Max temperature.....80-85.
   24 hr trend......Unchanged.
Min humidity........44-49 percent.
   24 hr trend......Unchanged.
20-foot winds.......Light winds becoming north around 6 mph in the
                    afternoon.
Mixing height.......4400-4900 ft AGL near Lake Michigan and
                    6300-6800 ft AGL Inland.
Transport winds.....Northeast 5 to 10 mph.
Smoke dispersal.....320-330 (good).
Pcpn Amount.........None.


$$

MIZ051-052-057>059-132030-
Montcalm-Gratiot-Kent-Ionia-Clinton-
Including the cities of Greenville, Alma, Grand Rapids, Ionia,
and St. Johns
403 AM EDT Wed Aug 13 2025

.TODAY...
Sky/weather.........Mostly sunny (35-45 percent). Areas of fog
                    until 9 AM.
Max temperature.....Around 85.
   24 hr trend......Unchanged.
Min humidity........43-48 percent.
   24 hr trend......8 percent drier.
20-foot winds.......Light winds becoming northwest around 7 mph in
                    the afternoon.
Mixing height.......4600-5100 ft AGL increasing to 6700-7200 ft AGL
                    in the afternoon.
Transport winds.....North around 5 mph.
Smoke dispersal.....280-620 (fair to excellent).
Pcpn Amount.........none to 0.07 in.

.TONIGHT...
Sky/weather.........Partly cloudy (20-30 percent).
Min temperature.....57-62.
   24 hr trend......7 degrees cooler.
Max humidity........95-100 percent.
   24 hr trend......Unchanged.
20-foot winds.......North winds 5 to 9 mph.
Mixing height.......1500-2000 ft AGL.
Transport winds.....Northeast around 10 mph.
Smoke dispersal.....60-130 (poor to fair).
Pcpn Amount.........None.

.THURSDAY...
Sky/weather.........Sunny (15-25 percent).
Max temperature.....81-86.
   24 hr trend......2 degrees cooler.
Min humidity........46-51 percent.
   24 hr trend......5 percent wetter.
20-foot winds.......Northeast winds 5 to 8 mph.
Mixing height.......6400-6900 ft AGL.
Transport winds.....Northeast 5 to 10 mph.
Smoke dispersal.....250-380 (fair to good).
Pcpn Amount.........None.


$$

MIZ065>067-072>074-132030-
Barry-Eaton-Ingham-Kalamazoo-Calhoun-Jackson-
Including the cities of Hastings, Charlotte, Lansing, Kalamazoo,
Battle Creek, and Jackson
403 AM EDT Wed Aug 13 2025

.TODAY...
Sky/weather.........Mostly sunny (35-45 percent). Areas of fog
                    until 9 AM.
Max temperature.....Around 85.
   24 hr trend......1 degree cooler.
Min humidity........49-54 percent.
   24 hr trend......8 percent drier.
20-foot winds.......Light winds becoming northwest around 7 mph in
                    the afternoon.
Mixing height.......6200-6700 ft AGL.
Transport winds.....Northwest 5 to 10 mph.
Smoke dispersal.....320-580 (good).
Pcpn Amount.........none to 0.04 in.

.TONIGHT...
Sky/weather.........Mostly clear (20-30 percent).
Min temperature.....Around 60.
   24 hr trend......7 degrees cooler.
Max humidity........95-100 percent.
   24 hr trend......Unchanged.
20-foot winds.......Northwest winds around 5 mph in the evening
                    becoming light.
Mixing height.......800-1300 ft AGL.
Transport winds.....North around 10 mph shifting to the northeast
                    overnight.
Smoke dispersal.....50-90 (poor).
Pcpn Amount.........None.

.THURSDAY...
Sky/weather.........Sunny (20-30 percent).
Max temperature.....Around 83.
   24 hr trend......2 degrees cooler.
Min humidity........49-54 percent.
   24 hr trend......3 percent wetter.
20-foot winds.......Northeast winds 5 to 7 mph.
Mixing height.......5600-6100 ft AGL.
Transport winds.....East 5 to 10 mph.
Smoke dispersal.....300 (good).
Pcpn Amount.........None.


$$

.FORECAST FOR DAYS 3 THROUGH 7...

.THURSDAY NIGHT...Mostly clear. Lows around 60. East winds 5 to
6 mph.
.FRIDAY...Sunny. Highs in the upper 80s. South winds 5 to 9 mph.
.FRIDAY NIGHT...Mostly clear. Lows in the mid 60s. South winds 5 to
8 mph.
.SATURDAY...Mostly sunny. Highs around 90. Southwest winds 5 to
10 mph.
.SATURDAY NIGHT...Partly cloudy with a chance of showers. Chance of
thunderstorms. Lows in the upper 60s. West winds 5 to 9 mph.
.SUNDAY...Mostly sunny. Highs in the mid 80s. North winds 5 to
10 mph.
.SUNDAY NIGHT...Partly cloudy. Lows in the lower 60s.
.MONDAY...Mostly sunny with a chance of showers. Highs in the mid
80s.
.MONDAY NIGHT...Partly cloudy. Chance of showers overnight. Lows in
the upper 50s.
.TUESDAY...Partly sunny with a chance of showers. Highs in the upper
70s.

$$