Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Grand Rapids, MI
Issued by NWS Grand Rapids, MI
747
FNUS53 KGRR 171728
FWFGRR
Fire Weather Planning Forecast for Southwest Lower Michigan
National Weather Service Grand Rapids MI
128 PM EDT Mon Aug 17 2026
...Showers and Storms possible late Tuesday into Wednesday...
.DISCUSSION...Dry weather with fair winds will continue through
the first half of Tuesday. A cold front will swing through late
tomorrow with a good chance for showers and possible thunderstorms
late tomorrow. Expect gusty southwest winds out ahead of the front
with flow shifting back to the north early Wednesday.
MIZ037>039-043>045-180815-
Mason-Lake-Osceola-Oceana-Newaygo-Mecosta-
Including the cities of Ludington, Baldwin, Reed City, Hart,
Fremont, and Big Rapids
128 PM EDT Mon Aug 17 2026
.TONIGHT...
Sky/weather.........Partly cloudy (20-30 percent).
Min temperature.....62-67 near Lake Michigan and 54-59 Inland.
24 hr trend......8 degrees warmer near Lake Michigan and 1
degree warmer Inland.
Max humidity........95-100 percent.
24 hr trend......Unchanged.
20-foot winds.......Light winds.
Mixing height.......Near Lake Michigan, 3100-3600 ft AGL decreasing
to 0-500 ft AGL after midnight.
Mixing height.......Inland, 5500-6000 ft AGL decreasing to 0-400 ft
AGL after midnight.
Transport winds.....Northwest around 5 mph shifting to the
southwest after midnight.
Smoke dispersal.....50-580 (poor to good).
Pcpn Amount.........None.
.TUESDAY...
Sky/weather.........Mostly sunny (40-50 percent) until 3 PM, then
mostly cloudy (65-75 percent). Chance of rain
showers and a slight chance of thunderstorms
after 2 PM.
Chance of pcpn......50 percent in the afternoon.
Max temperature.....79-84.
24 hr trend......1 degree warmer.
Min humidity........64-69 percent near Lake Michigan and 49-54
percent Inland.
24 hr trend......14 percent wetter near Lake Michigan and 5
percent wetter Inland.
20-foot winds.......Southwest winds 7 to 12 mph. Gusts up to 23 mph
in the afternoon.
Mixing height.......2700-3200 ft AGL near Lake Michigan and
4500-5000 ft AGL Inland.
Transport winds.....West around 10 mph increasing to around 20 mph
in the afternoon.
Smoke dispersal.....680-1060 (excellent).
Pcpn Amount.........None to 0.13 in.
.TUESDAY NIGHT...
Sky/weather.........Mostly cloudy (75-85 percent) until 12 AM, then
partly cloudy (55-65 percent). Rain showers
until 12 AM. Chance of thunderstorms. Chance of
rain showers after 12 AM.
Chance of pcpn......80 percent.
Min temperature.....51-56.
24 hr trend......1 degree cooler.
Max humidity........95-100 percent.
24 hr trend......Unchanged.
20-foot winds.......Southwest winds around 7 mph in the evening
becoming light.
Mixing height.......Near Lake Michigan, 1600-2100 ft AGL.
Mixing height.......Inland, 3400-3900 ft AGL decreasing to 700-1200
ft AGL after midnight.
Transport winds.....Southwest around 10 mph shifting to the
northwest after midnight.
Smoke dispersal.....720 (excellent) decreasing to 80 (poor) after
midnight.
Pcpn Amount.........0.09-0.31 in.
.WEDNESDAY...
Sky/weather.........Partly sunny (45-55 percent) until 9 AM, then
sunny (10-20 percent).
Max temperature.....75-80.
24 hr trend......3 degrees cooler.
Min humidity........43-48 percent near Lake Michigan and 34-39
percent Inland.
24 hr trend......25 percent drier near Lake Michigan and 12
percent drier Inland.
20-foot winds.......Light winds becoming northwest around 7 mph in
the afternoon.
Mixing height.......Near Lake Michigan, 2800-3300 ft AGL increasing
to 5000-5500 ft AGL in the afternoon.
Mixing height.......Inland, 3500-4000 ft AGL increasing to
7600-8100 ft AGL in the afternoon.
Transport winds.....North around 5 mph shifting to the northwest in
the afternoon.
Smoke dispersal.....340 (good) increasing to 960 (excellent) in the
afternoon.
Pcpn Amount.........none to 0.01 in.
$$
MIZ040-046-180815-
Clare-Isabella-
Including the cities of Clare and Mount Pleasant
128 PM EDT Mon Aug 17 2026
.TONIGHT...
Sky/weather.........Partly cloudy (25-35 percent).
Min temperature.....49-54.
24 hr trend......1 degree cooler.
Max humidity........95-100 percent.
24 hr trend......Unchanged.
20-foot winds.......Light winds.
Mixing height.......6400-6900 ft AGL decreasing to 0-400 ft AGL
after midnight.
Transport winds.....Northwest around 5 mph shifting to the west
after midnight.
Smoke dispersal.....40-570 (poor to good).
Pcpn Amount.........None.
.TUESDAY...
Sky/weather.........Mostly sunny (35-45 percent). Chance of rain
showers and a slight chance of thunderstorms
after 2 PM.
Chance of pcpn......30 percent in the afternoon.
Max temperature.....81-86.
24 hr trend......2 degrees warmer.
Min humidity........43-48 percent.
24 hr trend......3 percent wetter.
20-foot winds.......West winds 7 to 12 mph. Gusts up to 23 mph in
the afternoon.
Mixing height.......3800-4300 ft AGL increasing to 6300-6800 ft AGL
in the afternoon.
Transport winds.....West around 10 mph increasing to around 20 mph
in the afternoon.
Smoke dispersal.....710 (excellent) increasing to 1290 (excellent)
in the afternoon.
Pcpn Amount.........none to 0.05 in.
.TUESDAY NIGHT...
Sky/weather.........Mostly cloudy (70-80 percent) until 12 AM, then
partly cloudy (50-60 percent). Rain showers
until 12 AM. Chance of thunderstorms. Chance of
rain showers after 12 AM.
Chance of pcpn......80 percent.
Min temperature.....49-54.
24 hr trend......3 degrees warmer.
Max humidity........100 percent.
24 hr trend......Unchanged.
20-foot winds.......West winds around 9 mph in the evening becoming
light.
Mixing height.......4700-5200 ft AGL decreasing to 600-1100 ft AGL
after midnight.
Transport winds.....West around 15 mph becoming northwest around 5
mph after midnight.
Smoke dispersal.....940 (excellent) decreasing to 80 (poor) after
midnight.
Pcpn Amount.........0.12-0.32 in.
.WEDNESDAY...
Sky/weather.........Mostly sunny (25-35 percent).
Max temperature.....Around 79.
24 hr trend......4 degrees cooler.
Min humidity........35-40 percent.
24 hr trend......6 percent drier.
20-foot winds.......Light winds becoming northwest around 6 mph in
the afternoon.
Mixing height.......3000-3500 ft AGL increasing to 8200-8700 ft AGL
in the afternoon.
Transport winds.....Northeast around 5 mph shifting to the
northwest in the afternoon.
Smoke dispersal.....290 (fair) increasing to 1010 (excellent) in
the afternoon.
Pcpn Amount.........none to 0.01 in.
$$
MIZ050-056-064-071-180815-
Muskegon-Ottawa-Allegan-Van Buren-
Including the cities of Muskegon, Grand Haven, Jenison, Holland,
and South Haven
128 PM EDT Mon Aug 17 2026
.TONIGHT...
Sky/weather.........Mostly clear (20-30 percent).
Min temperature.....55-60.
24 hr trend......2 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.......Near Lake Michigan, 2800-3300 ft AGL decreasing
to 100-600 ft AGL after midnight.
Mixing height.......Inland, 4700-5200 ft AGL decreasing to 0-400 ft
AGL after midnight.
Transport winds.....West 5 to 10 mph.
Smoke dispersal.....40-540 (poor to good).
Pcpn Amount.........None.
.TUESDAY...
Sky/weather.........Mostly sunny (40-50 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.....76-81.
24 hr trend......1 degree warmer.
Min humidity........57-62 percent.
24 hr trend......3 percent wetter.
20-foot winds.......Southwest winds 6 to 11 mph. Gusts up to 21 mph
in the afternoon.
Mixing height.......2600-3100 ft AGL near Lake Michigan and
4200-4700 ft AGL Inland.
Transport winds.....West 10 to 15 mph.
Smoke dispersal.....450-760 (good to excellent).
Pcpn Amount.........none to 0.08 in.
.TUESDAY NIGHT...
Sky/weather.........Partly cloudy (65-75 percent) until 9 PM, then
mostly cloudy (80-90 percent) until 12 AM, then
partly cloudy (50-60 percent). Showers and a
chance of thunderstorms.
Chance of pcpn......90 percent.
Min temperature.....59-64.
24 hr trend......2 degrees warmer.
Max humidity........95-100 percent.
24 hr trend......Unchanged.
20-foot winds.......Southwest winds around 8 mph in the evening
becoming light.
Mixing height.......Near Lake Michigan, 1400-1900 ft AGL.
Mixing height.......Inland, 2900-3400 ft AGL decreasing to 300-800
ft AGL after midnight.
Transport winds.....West around 10 mph.
Smoke dispersal.....70-550 (poor to good).
Pcpn Amount.........0.10-0.48 in.
.WEDNESDAY...
Sky/weather.........Mostly sunny (30-40 percent). Chance of showers
until 8 AM.
Chance of pcpn......30 percent early in the morning.
Max temperature.....74-79.
24 hr trend......2 degrees cooler.
Min humidity........42-47 percent.
24 hr trend......4 percent drier.
20-foot winds.......Light winds becoming northwest around 7 mph in
the afternoon.
Mixing height.......Near Lake Michigan, 2200-2700 ft AGL increasing
to 5000-5500 ft AGL in the afternoon.
Mixing height.......Inland, 2400-2900 ft AGL increasing to
7500-8000 ft AGL in the afternoon.
Transport winds.....Northwest around 10 mph.
Smoke dispersal.....220 (fair) increasing to 830 (excellent) in the
afternoon.
Pcpn Amount.........none to 0.05 in.
$$
MIZ051-052-057>059-180815-
Montcalm-Gratiot-Kent-Ionia-Clinton-
Including the cities of Greenville, Alma, Grand Rapids, Ionia,
and St. Johns
128 PM EDT Mon Aug 17 2026
.TONIGHT...
Sky/weather.........Mostly clear (15-25 percent).
Min temperature.....55-60.
24 hr trend......2 degrees cooler.
Max humidity........95-100 percent.
24 hr trend......Unchanged.
20-foot winds.......Northwest winds around 6 mph in the evening
becoming light.
Mixing height.......6600-7100 ft AGL decreasing to 0-400 ft AGL
after midnight.
Transport winds.....Northwest 5 to 10 mph.
Smoke dispersal.....40-590 (poor to good).
Pcpn Amount.........None.
.TUESDAY...
Sky/weather.........Mostly sunny (30-40 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......2 degrees warmer.
Min humidity........43-48 percent.
24 hr trend......3 percent wetter.
20-foot winds.......Southwest winds 8 to 13 mph. Gusts up to 25 mph
in the afternoon.
Mixing height.......3300-3800 ft AGL increasing to 6200-6700 ft AGL
in the afternoon.
Transport winds.....West 10 to 15 mph.
Smoke dispersal.....550-1110 (good to excellent).
Pcpn Amount.........none to 0.02 in.
.TUESDAY NIGHT...
Sky/weather.........Partly cloudy (55-65 percent) until 9 PM, then
mostly cloudy (75-85 percent) until 12 AM, then
partly cloudy (50-60 percent). Showers until 12
AM. Chance of thunderstorms. Chance of showers
after 12 AM.
Chance of pcpn......80 percent.
Min temperature.....58-63.
24 hr trend......4 degrees warmer.
Max humidity........100 percent.
24 hr trend......Unchanged.
20-foot winds.......West winds 6 to 11 mph. Gusts up to 22 mph in
the evening.
Mixing height.......4600-5100 ft AGL decreasing to 600-1100 ft AGL
after midnight.
Transport winds.....West 10 to 15 mph.
Smoke dispersal.....870 (excellent) decreasing to 70 (poor) after
midnight.
Pcpn Amount.........0.11-0.34 in.
.WEDNESDAY...
Sky/weather.........Mostly sunny (35-45 percent).
Max temperature.....Around 79.
24 hr trend......3 degrees cooler.
Min humidity........38-43 percent.
24 hr trend......Unchanged.
20-foot winds.......Light winds becoming northwest around 6 mph in
the afternoon.
Mixing height.......2600-3100 ft AGL increasing to 7900-8400 ft AGL
in the afternoon.
Transport winds.....Northwest 5 to 10 mph.
Smoke dispersal.....270 (fair) increasing to 920 (excellent) in the
afternoon.
Pcpn Amount.........none to 0.03 in.
$$
MIZ065>067-072>074-180815-
Barry-Eaton-Ingham-Kalamazoo-Calhoun-Jackson-
Including the cities of Hastings, Charlotte, Lansing, Kalamazoo,
Battle Creek, and Jackson
128 PM EDT Mon Aug 17 2026
.TONIGHT...
Sky/weather.........Mostly clear (10-20 percent).
Min temperature.....Around 56.
24 hr trend......6 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.......5500-6000 ft AGL decreasing to 100-600 ft AGL
after midnight.
Transport winds.....Northwest 5 to 10 mph.
Smoke dispersal.....40-510 (poor to good).
Pcpn Amount.........None.
.TUESDAY...
Sky/weather.........Mostly sunny (25-35 percent) until 3 PM, then
mostly cloudy (70-80 percent).
Max temperature.....Around 81.
24 hr trend......3 degrees warmer.
Min humidity........44-49 percent.
24 hr trend......6 percent wetter.
20-foot winds.......Light winds becoming west around 10 mph and
gusty in the afternoon.
Mixing height.......2900-3400 ft AGL increasing to 5300-5800 ft AGL
in the afternoon.
Transport winds.....West 10 to 15 mph.
Smoke dispersal.....370-810 (good to excellent).
Pcpn Amount.........none to 0.01 in.
.TUESDAY NIGHT...
Sky/weather.........Partly cloudy (45-55 percent) until 9 PM, then
mostly cloudy (70-80 percent) until 12 AM, then
partly cloudy (60-70 percent). Showers and a
chance of thunderstorms.
Chance of pcpn......80 percent.
Min temperature.....Around 62.
24 hr trend......7 degrees warmer.
Max humidity........100 percent.
24 hr trend......Unchanged.
20-foot winds.......Southwest winds 5 to 9 mph.
Mixing height.......4200-4700 ft AGL decreasing to 600-1100 ft AGL
after midnight.
Transport winds.....West around 10 mph.
Smoke dispersal.....710 (excellent) decreasing to 70 (poor) after
midnight.
Pcpn Amount.........0.08-0.35 in.
.WEDNESDAY...
Sky/weather.........Partly sunny (45-55 percent). Chance of showers
until 11 AM. Chance of showers after 2 PM.
Chance of pcpn......40 percent.
Max temperature.....Around 79.
24 hr trend......4 degrees cooler.
Min humidity........46-51 percent.
24 hr trend......4 percent wetter.
20-foot winds.......Light winds becoming northwest around 6 mph in
the afternoon.
Mixing height.......2300-2800 ft AGL increasing to 5600-6100 ft AGL
in the afternoon.
Transport winds.....Northwest around 10 mph.
Smoke dispersal.....230-670 (fair to excellent).
Pcpn Amount.........0.02-0.16 in.
$$
.FORECAST FOR DAYS 3 THROUGH 7...
.WEDNESDAY NIGHT...Mostly clear. Lows in the lower 50s. Northwest
winds 5 to 7 mph in the evening becoming light.
.THURSDAY...Sunny. Highs around 80. Light winds becoming northwest
5 to 6 mph in the afternoon.
.THURSDAY NIGHT...Mostly clear. Lows in the mid 50s. North winds
5 to 6 mph in the evening becoming light.
.FRIDAY...Mostly sunny. Highs around 80. Southwest winds 5 to
10 mph.
.FRIDAY NIGHT...Partly cloudy with a chance of showers. Lows in the
upper 50s. Southwest winds 5 to 10 mph.
.SATURDAY...Mostly sunny with a chance of showers. Chance of
thunderstorms. Highs in the upper 70s. West winds 6 to 11 mph.
.SATURDAY NIGHT...Partly cloudy. Chance of showers and thunderstorms
in the evening. Lows in the mid 50s.
.SUNDAY...Mostly sunny. Highs in the mid 70s.
.SUNDAY NIGHT...Partly cloudy. Lows in the lower 50s.
.MONDAY...Mostly sunny. Highs in the upper 70s.
$$