Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Grand Rapids, MI
Issued by NWS Grand Rapids, MI
453
FNUS53 KGRR 091945
FWFGRR
Fire Weather Planning Forecast for Southwest Lower Michigan
National Weather Service Grand Rapids MI
345 PM EDT Sat Aug 9 2025
...Hot and humid with chances for showers and thunderstorms...
.DISCUSSION...Maximum temperatures will remain about 5 to 10
degrees above normal for this time of year with seasonably
strong, gusty winds from the southwest to reinforce the heat.
Showers and thunderstorms will be possible through at least
Tuesday with the best chances generally occurring each afternoon.
MIZ037>039-043>045-100815-
Mason-Lake-Osceola-Oceana-Newaygo-Mecosta-
Including the cities of Ludington, Baldwin, Reed City, Hart,
Fremont, and Big Rapids
345 PM EDT Sat Aug 9 2025
.TONIGHT...
Sky/weather.........Partly cloudy (30-40 percent). Slight chance of
thunderstorms until 2 AM. Chance of showers.
Chance of pcpn......40 percent.
Min temperature.....66-71.
24 hr trend......1 degree cooler.
Max humidity........95-100 percent.
24 hr trend......Unchanged.
20-foot winds.......South winds 5 to 9 mph.
Mixing height.......600-1100 ft AGL near Lake Michigan and
1500-2000 ft AGL Inland.
Transport winds.....Southwest 10 to 15 mph.
Smoke dispersal.....90-300 (poor to good).
Pcpn Amount.........None to 0.14 in.
.SUNDAY...
Sky/weather.........Partly sunny (45-55 percent). Chance of
showers. Slight chance of thunderstorms after 5
PM.
Chance of pcpn......40 percent.
Max temperature.....86-91.
24 hr trend......3 degrees cooler.
Min humidity........67-72 percent near Lake Michigan and 50-55
percent Inland.
24 hr trend......15 percent wetter near Lake Michigan and 10
percent wetter Inland.
20-foot winds.......Southwest winds 7 to 12 mph. Gusts up to 21 mph
in the afternoon.
Mixing height.......2400-2900 ft AGL near Lake Michigan and
5000-5500 ft AGL Inland.
Transport winds.....Southwest 15 to 20 mph.
Smoke dispersal.....970-1230 (excellent).
Pcpn Amount.........none to 0.03 in.
.SUNDAY NIGHT...
Sky/weather.........Partly cloudy (45-55 percent). Chance of
showers and thunderstorms.
Chance of pcpn......40 percent.
Min temperature.....66-71.
24 hr trend......Unchanged.
Max humidity........95-100 percent.
24 hr trend......Unchanged.
20-foot winds.......Southwest winds around 5 mph in the evening
becoming light.
Mixing height.......1600-2100 ft AGL.
Transport winds.....Southwest around 10 mph.
Smoke dispersal.....100-270 (poor to fair).
Pcpn Amount.........0.03-0.39 in.
.MONDAY...
Sky/weather.........Mostly cloudy (70-80 percent). Chance of
showers and thunderstorms.
Chance of pcpn......50 percent.
Max temperature.....82-87.
24 hr trend......6 degrees cooler.
Min humidity........72-77 percent near Lake Michigan and 63-68
percent Inland.
24 hr trend......10 percent wetter near Lake Michigan and 19
percent wetter Inland.
20-foot winds.......Southwest winds 5 to 10 mph.
Mixing height.......2100-2600 ft AGL near Lake Michigan and
3400-3900 ft AGL Inland.
Transport winds.....Southwest around 15 mph.
Smoke dispersal.....640-750 (excellent).
Pcpn Amount.........0.05-0.31 in.
$$
MIZ040-046-100815-
Clare-Isabella-
Including the cities of Clare and Mount Pleasant
345 PM EDT Sat Aug 9 2025
.TONIGHT...
Sky/weather.........Mostly clear (20-30 percent).
Min temperature.....Around 69.
24 hr trend......Unchanged.
Max humidity........92-97 percent.
24 hr trend......Unchanged.
20-foot winds.......South winds 5 to 8 mph.
Mixing height.......2300-2800 ft AGL decreasing to 100-600 ft AGL
overnight.
Transport winds.....Southwest around 10 mph.
Smoke dispersal.....60-400 (poor to good).
Pcpn Amount.........None.
.SUNDAY...
Sky/weather.........Mostly sunny (35-45 percent). Chance of
showers. Slight chance of thunderstorms after 5
PM.
Chance of pcpn......40 percent.
Max temperature.....89-94.
24 hr trend......4 degrees cooler.
Min humidity........42-47 percent.
24 hr trend......8 percent wetter.
20-foot winds.......Southwest winds 7 to 12 mph.
Mixing height.......7000-7500 ft AGL.
Transport winds.....Southwest 15 to 20 mph.
Smoke dispersal.....1290-1460 (excellent).
Pcpn Amount.........none to 0.03 in.
.SUNDAY NIGHT...
Sky/weather.........Partly cloudy (35-45 percent).
Min temperature.....64-69.
24 hr trend......1 degree cooler.
Max humidity........95-100 percent.
24 hr trend......Unchanged.
20-foot winds.......Southwest winds 5 to 6 mph.
Mixing height.......1700-2200 ft AGL.
Transport winds.....Southwest around 10 mph.
Smoke dispersal.....80-280 (poor to fair).
Pcpn Amount.........None to 0.21 in.
.MONDAY...
Sky/weather.........Partly sunny (55-65 percent). Chance of showers
and thunderstorms.
Chance of pcpn......50 percent.
Max temperature.....85-90.
24 hr trend......2 degrees cooler.
Min humidity........55-60 percent.
24 hr trend......19 percent wetter.
20-foot winds.......Southwest winds 6 to 11 mph.
Mixing height.......4800-5300 ft AGL.
Transport winds.....Southwest around 15 mph.
Smoke dispersal.....880-1020 (excellent).
Pcpn Amount.........0.06-0.45 in.
$$
MIZ050-056-064-071-100815-
Muskegon-Ottawa-Allegan-Van Buren-
Including the cities of Muskegon, Grand Haven, Jenison, Holland,
and South Haven
345 PM EDT Sat Aug 9 2025
.TONIGHT...
Sky/weather.........Mostly clear (15-25 percent).
Min temperature.....Around 71.
24 hr trend......1 degree warmer.
Max humidity........88-93 percent.
24 hr trend......Unchanged.
20-foot winds.......South winds 5 to 9 mph.
Mixing height.......600-1100 ft AGL near Lake Michigan and
2200-2700 ft AGL Inland.
Transport winds.....South around 10 mph.
Smoke dispersal.....60-320 (poor to good).
Pcpn Amount.........none to 0.07 in.
.SUNDAY...
Sky/weather.........Mostly sunny (35-45 percent). Chance of
showers. Slight chance of thunderstorms after 5
PM.
Chance of pcpn......30 percent.
Max temperature.....87-92.
24 hr trend......2 degrees cooler.
Min humidity........52-57 percent near Lake Michigan and 44-49
percent Inland.
24 hr trend......10 percent wetter near Lake Michigan and 4
percent wetter Inland.
20-foot winds.......Southwest winds 6 to 11 mph.
Mixing height.......4000-4500 ft AGL near Lake Michigan and
6600-7100 ft AGL Inland.
Transport winds.....Southwest 15 to 20 mph.
Smoke dispersal.....1060-1270 (excellent).
Pcpn Amount.........none to 0.04 in.
.SUNDAY NIGHT...
Sky/weather.........Partly cloudy (40-50 percent). Chance of
showers and thunderstorms.
Chance of pcpn......30 percent.
Min temperature.....Around 71.
24 hr trend......Unchanged.
Max humidity........95-100 percent.
24 hr trend......Unchanged.
20-foot winds.......South winds 5 to 8 mph.
Mixing height.......300-800 ft AGL near Lake Michigan and 1500-2000
ft AGL Inland.
Transport winds.....South around 10 mph.
Smoke dispersal.....70-240 (poor to fair).
Pcpn Amount.........None to 0.43 in.
.MONDAY...
Sky/weather.........Partly sunny (55-65 percent). Chance of showers
and thunderstorms.
Chance of pcpn......40 percent.
Max temperature.....84-89.
24 hr trend......3 degrees cooler.
Min humidity........57-62 percent.
24 hr trend......18 percent wetter.
20-foot winds.......Southwest winds 5 to 10 mph.
Mixing height.......2600-3100 ft AGL near Lake Michigan and
4700-5200 ft AGL Inland.
Transport winds.....Southwest around 15 mph.
Smoke dispersal.....750-840 (excellent).
Pcpn Amount.........None to 0.36 in.
$$
MIZ051-052-057>059-100815-
Montcalm-Gratiot-Kent-Ionia-Clinton-
Including the cities of Greenville, Alma, Grand Rapids, Ionia,
and St. Johns
345 PM EDT Sat Aug 9 2025
.TONIGHT...
Sky/weather.........Mostly clear (15-25 percent).
Min temperature.....Around 71.
24 hr trend......Unchanged.
Max humidity........92-97 percent.
24 hr trend......Unchanged.
20-foot winds.......South winds 5 to 10 mph.
Mixing height.......3000-3500 ft AGL decreasing to 100-600 ft AGL
overnight.
Transport winds.....South 10 to 15 mph.
Smoke dispersal.....60-410 (poor to good).
Pcpn Amount.........None.
.SUNDAY...
Sky/weather.........Mostly sunny (30-40 percent). Chance of
showers. Slight chance of thunderstorms after 5
PM.
Chance of pcpn......30 percent.
Max temperature.....Around 91.
24 hr trend......1 degree cooler.
Min humidity........41-46 percent.
24 hr trend......Unchanged.
20-foot winds.......Southwest winds 8 to 13 mph.
Mixing height.......6800-7300 ft AGL.
Transport winds.....Southwest 15 to 20 mph.
Smoke dispersal.....1120-1330 (excellent).
Pcpn Amount.........none to 0.03 in.
.SUNDAY NIGHT...
Sky/weather.........Partly cloudy (25-35 percent).
Min temperature.....69-74.
24 hr trend......1 degree warmer.
Max humidity........95-100 percent.
24 hr trend......Unchanged.
20-foot winds.......South winds 5 to 9 mph.
Mixing height.......1800-2300 ft AGL.
Transport winds.....South 10 to 15 mph.
Smoke dispersal.....80-240 (poor to fair).
Pcpn Amount.........None to 0.30 in.
.MONDAY...
Sky/weather.........Partly sunny (50-60 percent). Chance of showers
and thunderstorms.
Chance of pcpn......40 percent.
Max temperature.....85-90.
24 hr trend......4 degrees cooler.
Min humidity........55-60 percent.
24 hr trend......15 percent wetter.
20-foot winds.......Southwest winds 7 to 12 mph.
Mixing height.......5600-6100 ft AGL.
Transport winds.....Southwest around 15 mph.
Smoke dispersal.....950-1070 (excellent).
Pcpn Amount.........0.01-0.35 in.
$$
MIZ065>067-072>074-100815-
Barry-Eaton-Ingham-Kalamazoo-Calhoun-Jackson-
Including the cities of Hastings, Charlotte, Lansing, Kalamazoo,
Battle Creek, and Jackson
345 PM EDT Sat Aug 9 2025
.TONIGHT...
Sky/weather.........Mostly clear (10-20 percent).
Min temperature.....67-72.
24 hr trend......1 degree warmer.
Max humidity........92-97 percent.
24 hr trend......Unchanged.
20-foot winds.......South winds 5 to 8 mph.
Mixing height.......1900-2400 ft AGL.
Transport winds.....South around 10 mph.
Smoke dispersal.....60-250 (poor to fair).
Pcpn Amount.........None.
.SUNDAY...
Sky/weather.........Mostly sunny (20-30 percent). Slight chance of
showers after 11 AM. Slight chance of
thunderstorms after 5 PM.
Chance of pcpn......20 percent.
Max temperature.....Around 91.
24 hr trend......Unchanged.
Min humidity........45-50 percent.
24 hr trend......4 percent drier.
20-foot winds.......South winds 6 to 11 mph.
Mixing height.......6700-7200 ft AGL.
Transport winds.....Southwest around 15 mph.
Smoke dispersal.....1010-1230 (excellent).
Pcpn Amount.........none to 0.07 in.
.SUNDAY NIGHT...
Sky/weather.........Partly cloudy (20-30 percent).
Min temperature.....Around 70.
24 hr trend......2 degrees warmer.
Max humidity........92-97 percent.
24 hr trend......Unchanged.
20-foot winds.......South winds 5 to 8 mph.
Mixing height.......1600-2100 ft AGL.
Transport winds.....South 10 to 15 mph.
Smoke dispersal.....70-210 (poor to fair).
Pcpn Amount.........none to 0.01 in.
.MONDAY...
Sky/weather.........Mostly sunny (40-50 percent). Chance of showers
and thunderstorms.
Chance of pcpn......30 percent.
Max temperature.....Around 88.
24 hr trend......2 degrees cooler.
Min humidity........55-60 percent.
24 hr trend......13 percent wetter.
20-foot winds.......Southwest winds 5 to 10 mph.
Mixing height.......5100-5600 ft AGL.
Transport winds.....Southwest around 15 mph.
Smoke dispersal.....870-940 (excellent).
Pcpn Amount.........none to 0.09 in.
$$
.FORECAST FOR DAYS 3 THROUGH 7...
.MONDAY NIGHT...Partly cloudy with a chance of showers. Chance of
thunderstorms. Lows in the upper 60s. Southwest winds 5 to 9 mph.
.TUESDAY...Partly sunny with a chance of showers. Chance of
thunderstorms. Highs in the lower 80s. Southwest winds 5 to 10 mph.
.TUESDAY NIGHT...Partly cloudy. Lows in the mid 60s. West winds 5 to
6 mph.
.WEDNESDAY...Mostly sunny. Highs in the mid 80s. West winds 5 to
9 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows in the lower 60s. North winds
5 to 6 mph.
.THURSDAY...Mostly sunny. Highs in the mid 80s. Southeast winds 5 to
9 mph.
.THURSDAY NIGHT...Mostly clear. Lows in the lower 60s.
.FRIDAY...Mostly sunny. Highs in the mid 80s.
.FRIDAY NIGHT...Partly cloudy. Lows in the mid 60s.
.SATURDAY...Mostly sunny. Highs in the upper 80s.
$$