Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Grand Rapids, MI
Issued by NWS Grand Rapids, MI
599
FNUS53 KGRR 110802
FWFGRR
Fire Weather Planning Forecast for Southwest Lower Michigan
National Weather Service Grand Rapids MI
402 AM EDT Tue Aug 11 2026
...Chances for showers and thunderstorms continue today...
.DISCUSSION...
Heat and humidity will remain in place today across Southwest Lower
Michigan. A warm front will be situated off to our south over
Illinois and Indiana. The front will be a focus for shower and
thunderstorm development that has good chances for impacted southern
portions of the state, near and south of Interstate 96.
MIZ037>039-043>045-112015-
Mason-Lake-Osceola-Oceana-Newaygo-Mecosta-
Including the cities of Ludington, Baldwin, Reed City, Hart,
Fremont, and Big Rapids
402 AM EDT Tue Aug 11 2026
.TODAY...
Sky/weather.........Mostly cloudy (70-80 percent). Chance of rain
showers after 2 PM. Slight chance of
thunderstorms after 5 PM.
Chance of pcpn......30 percent in the afternoon.
Max temperature.....81-86.
24 hr trend......1 degree warmer.
Min humidity........57-62 percent near Lake Michigan and 48-53
percent Inland.
24 hr trend......Unchanged.
20-foot winds.......Light winds.
Mixing height.......Near Lake Michigan, 2600-3100 ft AGL.
Mixing height.......Inland, 1800-2300 ft AGL increasing to
5100-5600 ft AGL in the afternoon.
Transport winds.....Southeast around 5 mph shifting to the
southwest in the afternoon.
Smoke dispersal.....140-370 (fair to good).
Pcpn Amount.........none to 0.07 in.
.TONIGHT...
Sky/weather.........Partly cloudy (40-50 percent).
Min temperature.....56-61.
24 hr trend......Unchanged.
Max humidity........99 percent.
24 hr trend......Unchanged.
20-foot winds.......Light winds.
Mixing height.......Near Lake Michigan, 1100-1600 ft AGL.
Mixing height.......Inland, 3700-4200 ft AGL decreasing to 600-1100
ft AGL after midnight.
Transport winds.....West around 5 mph shifting to the south after
midnight.
Smoke dispersal.....40-270 (poor to fair).
Pcpn Amount.........none to 0.02 in.
.WEDNESDAY...
Sky/weather.........Partly sunny (45-55 percent).
Max temperature.....80-85.
24 hr trend......Unchanged.
Min humidity........58-63 percent near Lake Michigan and 49-54
percent Inland.
24 hr trend......3 percent drier near Lake Michigan and 5
percent drier Inland.
20-foot winds.......Light winds becoming west around 7 mph in the
afternoon.
Mixing height.......Near Lake Michigan, 2100-2600 ft AGL.
Mixing height.......Inland, 2100-2600 ft AGL increasing to
4900-5400 ft AGL in the afternoon.
Transport winds.....West 5 to 10 mph.
Smoke dispersal.....240-700 (fair to excellent).
Pcpn Amount.........None.
$$
MIZ040-046-112015-
Clare-Isabella-
Including the cities of Clare and Mount Pleasant
402 AM EDT Tue Aug 11 2026
.TODAY...
Sky/weather.........Partly sunny (60-70 percent). Slight chance of
rain showers after 2 PM. Slight chance of
thunderstorms after 5 PM.
Chance of pcpn......20 percent in the afternoon.
Max temperature.....Around 84.
24 hr trend......1 degree cooler.
Min humidity........47-52 percent.
24 hr trend......6 percent drier.
20-foot winds.......Light winds.
Mixing height.......1800-2300 ft AGL increasing to 6100-6600 ft AGL
in the afternoon.
Transport winds.....East around 5 mph shifting to the southwest in
the afternoon.
Smoke dispersal.....100-410 (poor to good).
Pcpn Amount.........none to 0.03 in.
.TONIGHT...
Sky/weather.........Partly cloudy (45-55 percent). Slight chance of
showers and thunderstorms until 8 PM.
Chance of pcpn......20 percent early in the evening.
Min temperature.....53-58.
24 hr trend......2 degrees warmer.
Max humidity........100 percent.
24 hr trend......Unchanged.
20-foot winds.......Light winds.
Mixing height.......4600-5100 ft AGL decreasing to 400-900 ft AGL
after midnight.
Transport winds.....South around 5 mph shifting to the northeast
after midnight.
Smoke dispersal.....30-330 (poor to good).
Pcpn Amount.........none to 0.02 in.
.WEDNESDAY...
Sky/weather.........Mostly sunny (35-45 percent).
Max temperature.....Around 83.
24 hr trend......Unchanged.
Min humidity........49-54 percent.
24 hr trend......2 percent wetter.
20-foot winds.......Light winds becoming west around 6 mph in the
afternoon.
Mixing height.......2300-2800 ft AGL increasing to 6700-7200 ft AGL
in the afternoon.
Transport winds.....West 5 to 10 mph.
Smoke dispersal.....250-780 (fair to excellent).
Pcpn Amount.........none to 0.01 in.
$$
MIZ050-056-064-071-112015-
Muskegon-Ottawa-Allegan-Van Buren-
Including the cities of Muskegon, Grand Haven, Jenison, Holland,
and South Haven
402 AM EDT Tue Aug 11 2026
.TODAY...
Sky/weather.........Mostly cloudy (75-85 percent). Chance of
showers until 12 PM. Slight chance of
thunderstorms. Showers likely after 12 PM.
Chance of pcpn......70 percent.
Max temperature.....78-83.
24 hr trend......3 degrees cooler.
Min humidity........63-68 percent.
24 hr trend......2 percent wetter.
20-foot winds.......Light winds becoming south around 5 mph in the
afternoon.
Mixing height.......1900-2400 ft AGL near Lake Michigan and
3000-3500 ft AGL Inland.
Transport winds.....South around 5 mph.
Smoke dispersal.....110-250 (poor to fair).
Pcpn Amount.........0.03-0.49 in.
.TONIGHT...
Sky/weather.........Partly cloudy (50-60 percent). Slight chance of
thunderstorms until 8 PM. Chance of showers
until 11 PM.
Chance of pcpn......40 percent in the evening.
Min temperature.....61-66.
24 hr trend......1 degree cooler.
Max humidity........99 percent.
24 hr trend......Unchanged.
20-foot winds.......Light winds.
Mixing height.......1700-2200 ft AGL.
Transport winds.....Southwest around 5 mph.
Smoke dispersal.....40-140 (poor to fair).
Pcpn Amount.........0.01-0.21 in.
.WEDNESDAY...
Sky/weather.........Partly sunny (50-60 percent). Chance of showers
after 2 PM until 4 PM.
Chance of pcpn......30 percent in the afternoon.
Max temperature.....79-84.
24 hr trend......2 degrees warmer.
Min humidity........58-63 percent.
24 hr trend......7 percent drier.
20-foot winds.......Light winds becoming west around 6 mph in the
afternoon.
Mixing height.......1600-2100 ft AGL near Lake Michigan and
3300-3800 ft AGL Inland.
Transport winds.....West 5 to 10 mph.
Smoke dispersal.....190-360 (fair to good).
Pcpn Amount.........None to 0.11 in.
$$
MIZ051-052-057>059-112015-
Montcalm-Gratiot-Kent-Ionia-Clinton-
Including the cities of Greenville, Alma, Grand Rapids, Ionia,
and St. Johns
402 AM EDT Tue Aug 11 2026
.TODAY...
Sky/weather.........Mostly cloudy (65-75 percent). Chance of
showers after 11 AM. Slight chance of
thunderstorms after 2 PM.
Chance of pcpn......40 percent in the late morning and
afternoon.
Max temperature.....79-84.
24 hr trend......2 degrees cooler.
Min humidity........53-58 percent.
24 hr trend......Unchanged.
20-foot winds.......Light winds becoming south around 5 mph in the
afternoon.
Mixing height.......1200-1700 ft AGL increasing to 4500-5000 ft AGL
in the afternoon.
Transport winds.....East around 5 mph shifting to the south in the
afternoon.
Smoke dispersal.....90-290 (poor to fair).
Pcpn Amount.........None to 0.23 in.
.TONIGHT...
Sky/weather.........Partly cloudy (50-60 percent). Slight chance of
thunderstorms until 8 PM. Chance of showers
until 11 PM.
Chance of pcpn......30 percent in the evening.
Min temperature.....60-65.
24 hr trend......1 degree warmer.
Max humidity........100 percent.
24 hr trend......Unchanged.
20-foot winds.......Southwest winds up to 5 mph.
Mixing height.......4000-4500 ft AGL decreasing to 600-1100 ft AGL
after midnight.
Transport winds.....Southwest around 5 mph.
Smoke dispersal.....30-250 (poor to fair).
Pcpn Amount.........none to 0.09 in.
.WEDNESDAY...
Sky/weather.........Partly sunny (45-55 percent).
Max temperature.....Around 83.
24 hr trend......2 degrees warmer.
Min humidity........51-56 percent.
24 hr trend......6 percent drier.
20-foot winds.......Light winds becoming west around 7 mph in the
afternoon.
Mixing height.......2200-2700 ft AGL increasing to 6100-6600 ft AGL
in the afternoon.
Transport winds.....West 5 to 10 mph.
Smoke dispersal.....210-720 (fair to excellent).
Pcpn Amount.........none to 0.03 in.
$$
MIZ065>067-072>074-112015-
Barry-Eaton-Ingham-Kalamazoo-Calhoun-Jackson-
Including the cities of Hastings, Charlotte, Lansing, Kalamazoo,
Battle Creek, and Jackson
402 AM EDT Tue Aug 11 2026
.TODAY...
Sky/weather.........Mostly cloudy (75-85 percent). Chance of
showers until 2 PM. Chance of thunderstorms
after 8 AM. Showers likely after 2 PM.
Chance of pcpn......70 percent.
Max temperature.....Around 80.
24 hr trend......3 degrees cooler.
Min humidity........60-65 percent.
24 hr trend......7 percent wetter.
20-foot winds.......Light winds becoming south around 5 mph in the
afternoon.
Mixing height.......2800-3300 ft AGL.
Transport winds.....Southeast around 5 mph shifting to the
southwest in the afternoon.
Smoke dispersal.....120-220 (poor to fair).
Pcpn Amount.........0.04-0.61 in.
.TONIGHT...
Sky/weather.........Mostly cloudy (70-80 percent) until 9 PM, then
partly cloudy (50-60 percent). Showers likely
and a slight chance of thunderstorms until 8
PM, then a slight chance of showers until 11
PM.
Chance of pcpn......60 percent in the evening.
Min temperature.....Around 63.
24 hr trend......2 degrees cooler.
Max humidity........100 percent.
24 hr trend......Unchanged.
20-foot winds.......Southwest winds up to 5 mph.
Mixing height.......2300-2800 ft AGL.
Transport winds.....Southwest around 5 mph.
Smoke dispersal.....30-180 (poor to fair).
Pcpn Amount.........0.03-0.47 in.
.WEDNESDAY...
Sky/weather.........Partly sunny (55-65 percent). Chance of showers
after 2 PM until 5 PM. Chance of thunderstorms
after 2 PM.
Chance of pcpn......30 percent in the afternoon.
Max temperature.....Around 82.
24 hr trend......2 degrees warmer.
Min humidity........55-60 percent.
24 hr trend......11 percent drier.
20-foot winds.......Light winds becoming west around 6 mph in the
afternoon.
Mixing height.......1700-2200 ft AGL increasing to 4000-4500 ft AGL
in the afternoon.
Transport winds.....West 5 to 10 mph.
Smoke dispersal.....200-430 (fair to good).
Pcpn Amount.........none to 0.10 in.
$$
.FORECAST FOR DAYS 3 THROUGH 7...
.WEDNESDAY NIGHT...Partly cloudy. Lows in the lower 60s. Northwest
winds 5 to 7 mph in the evening becoming light.
.THURSDAY...Partly sunny with a slight chance of showers. Highs in
the lower 80s. North winds 5 to 6 mph.
.THURSDAY NIGHT...Partly cloudy. Lows in the upper 50s. North winds
5 to 9 mph.
.FRIDAY...Mostly sunny. Highs in the upper 70s. Northeast winds 5 to
9 mph.
.FRIDAY NIGHT...Partly cloudy. Lows in the mid 50s. East winds 5 to
9 mph.
.SATURDAY...Partly sunny with a chance of showers. Highs in the mid
70s. Southeast winds 5 to 10 mph.
.SATURDAY NIGHT...Mostly cloudy. Chance of showers in the evening,
then showers likely after midnight. Lows around 60.
.SUNDAY...Mostly cloudy. Showers likely in the morning, then a
chance of showers in the afternoon. Highs in the upper 70s.
.SUNDAY NIGHT...Partly cloudy. Lows in the upper 50s.
.MONDAY...Mostly sunny. Highs in the upper 70s.
$$