Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Grand Rapids, MI
Issued by NWS Grand Rapids, MI
844
FNUS53 KGRR 161906
FWFGRR
Fire Weather Planning Forecast for Southwest Lower Michigan
National Weather Service Grand Rapids MI
306 PM EDT Sat Aug 16 2025
...Showers and Storms Likely Through Tuesday...
.DISCUSSION...
A front drifting through the region will lead to several rounds
of showers and thunderstorms through Tuesday. Storms may contain
very heavy rainfall, and gusts in excess of 40 mph cannot be
ruled out in the strongest storms. A very moist airmass will
keep MinRH values in the 50s or higher for the next several days
winds at or below 10 mph outside of any thunderstorms.
MIZ037>039-043>045-170815-
Mason-Lake-Osceola-Oceana-Newaygo-Mecosta-
Including the cities of Ludington, Baldwin, Reed City, Hart,
Fremont, and Big Rapids
306 PM EDT Sat Aug 16 2025
.TONIGHT...
Sky/weather.........Mostly cloudy (75-85 percent). Chance of
showers and thunderstorms until 5 AM.
Chance of pcpn......40 percent.
Min temperature.....62-67.
24 hr trend......1 degree cooler.
Max humidity........99 percent.
24 hr trend......Unchanged.
20-foot winds.......Northwest winds 5 to 7 mph.
Mixing height.......900-1400 ft AGL.
Transport winds.....Northwest around 10 mph.
Smoke dispersal.....130-140 (fair).
Pcpn Amount.........0.05-0.22 in.
.SUNDAY...
Sky/weather.........Mostly sunny (45-55 percent).
Max temperature.....78-83.
24 hr trend......7 degrees cooler.
Min humidity........52-57 percent.
24 hr trend......8 percent wetter.
20-foot winds.......Northeast winds 5 to 10 mph.
Mixing height.......3000-3500 ft AGL near Lake Michigan and
4200-4700 ft AGL Inland.
Transport winds.....Northeast 10 to 15 mph.
Smoke dispersal.....400 (good).
Pcpn Amount.........None.
.SUNDAY NIGHT...
Sky/weather.........Partly cloudy (25-35 percent).
Min temperature.....53-58.
24 hr trend......8 degrees cooler.
Max humidity........91-96 percent.
24 hr trend......Unchanged.
20-foot winds.......East winds 5 to 10 mph.
Mixing height.......1700-2200 ft AGL.
Transport winds.....East 10 to 15 mph.
Smoke dispersal.....100-200 (poor to fair).
Pcpn Amount.........None to 0.11 in.
.MONDAY...
Sky/weather.........Partly sunny (50-60 percent). Chance of showers
and thunderstorms.
Chance of pcpn......50 percent.
Max temperature.....79-84.
24 hr trend......1 degree warmer.
Min humidity........54-59 percent.
24 hr trend......Unchanged.
20-foot winds.......Southeast winds 6 to 11 mph.
Mixing height.......2300-2800 ft AGL near Lake Michigan and
3300-3800 ft AGL Inland.
Transport winds.....Southeast around 15 mph.
Smoke dispersal.....390-520 (good).
Pcpn Amount.........0.14-0.31 in.
$$
MIZ040-046-170815-
Clare-Isabella-
Including the cities of Clare and Mount Pleasant
306 PM EDT Sat Aug 16 2025
.TONIGHT...
Sky/weather.........Partly cloudy (55-65 percent) until 11 PM, then
mostly cloudy (75-85 percent). Chance of
showers until 6 AM. Chance of thunderstorms
until 7 AM.
Chance of pcpn......40 percent.
Min temperature.....63-68.
24 hr trend......1 degree warmer.
Max humidity........99 percent.
24 hr trend......Unchanged.
20-foot winds.......Northwest winds 5 to 7 mph.
Mixing height.......1100-1600 ft AGL.
Transport winds.....Northwest around 10 mph.
Smoke dispersal.....120-130 (poor to fair).
Pcpn Amount.........0.04-0.15 in.
.SUNDAY...
Sky/weather.........Partly sunny (45-55 percent).
Max temperature.....Around 77.
24 hr trend......13 degrees cooler.
Min humidity........54-59 percent.
24 hr trend......8 percent wetter.
20-foot winds.......Northeast winds 6 to 11 mph.
Mixing height.......3800-4300 ft AGL.
Transport winds.....Northeast 10 to 15 mph.
Smoke dispersal.....480 (good).
Pcpn Amount.........None.
.SUNDAY NIGHT...
Sky/weather.........Partly cloudy (20-30 percent).
Min temperature.....52-57.
24 hr trend......11 degrees cooler.
Max humidity........91-96 percent.
24 hr trend......Unchanged.
20-foot winds.......East winds 5 to 9 mph.
Mixing height.......1900-2400 ft AGL.
Transport winds.....East around 10 mph.
Smoke dispersal.....60-290 (poor to fair).
Pcpn Amount.........None.
.MONDAY...
Sky/weather.........Mostly sunny (45-55 percent). Chance of showers
and thunderstorms.
Chance of pcpn......40 percent.
Max temperature.....78-83.
24 hr trend......4 degrees warmer.
Min humidity........52-57 percent.
24 hr trend......2 percent drier.
20-foot winds.......Southeast winds 5 to 10 mph.
Mixing height.......2900-3400 ft AGL.
Transport winds.....Southeast around 10 mph.
Smoke dispersal.....360-450 (good).
Pcpn Amount.........0.10-0.21 in.
$$
MIZ050-056-064-071-170815-
Muskegon-Ottawa-Allegan-Van Buren-
Including the cities of Muskegon, Grand Haven, Jenison, Holland,
and South Haven
306 PM EDT Sat Aug 16 2025
.TONIGHT...
Sky/weather.........Partly cloudy (30-40 percent) until 11 PM, then
mostly cloudy (75-85 percent). Chance of
showers and thunderstorms.
Chance of pcpn......50 percent.
Min temperature.....Around 69.
24 hr trend......1 degree cooler.
Max humidity........95-100 percent.
24 hr trend......Unchanged.
20-foot winds.......West winds 5 to 7 mph.
Mixing height.......800-1300 ft AGL.
Transport winds.....West around 10 mph.
Smoke dispersal.....90-150 (poor to fair).
Pcpn Amount.........0.10-0.35 in.
.SUNDAY...
Sky/weather.........Partly sunny (50-60 percent).
Max temperature.....80-85.
24 hr trend......7 degrees cooler.
Min humidity........58-63 percent.
24 hr trend......5 percent wetter.
20-foot winds.......North winds 5 to 9 mph.
Mixing height.......3100-3600 ft AGL near Lake Michigan and
4000-4500 ft AGL Inland.
Transport winds.....North around 10 mph.
Smoke dispersal.....340-380 (good).
Pcpn Amount.........None to 0.19 in.
.SUNDAY NIGHT...
Sky/weather.........Partly cloudy (25-35 percent).
Min temperature.....59-64.
24 hr trend......8 degrees cooler.
Max humidity........91-96 percent.
24 hr trend......Unchanged.
20-foot winds.......East winds 5 to 10 mph.
Mixing height.......1900-2400 ft AGL.
Transport winds.....East around 15 mph.
Smoke dispersal.....140-240 (fair).
Pcpn Amount.........none to 0.07 in.
.MONDAY...
Sky/weather.........Mostly sunny (35-45 percent). Chance of showers
and thunderstorms.
Chance of pcpn......40 percent.
Max temperature.....85-90.
24 hr trend......4 degrees warmer.
Min humidity........55-60 percent.
24 hr trend......2 percent drier.
20-foot winds.......South winds 5 to 10 mph.
Mixing height.......2600-3100 ft AGL near Lake Michigan and
4000-4500 ft AGL Inland.
Transport winds.....South around 15 mph.
Smoke dispersal.....480-630 (good to excellent).
Pcpn Amount.........None to 0.23 in.
$$
MIZ051-052-057>059-170815-
Montcalm-Gratiot-Kent-Ionia-Clinton-
Including the cities of Greenville, Alma, Grand Rapids, Ionia,
and St. Johns
306 PM EDT Sat Aug 16 2025
.TONIGHT...
Sky/weather.........Partly cloudy (35-45 percent) until 11 PM, then
mostly cloudy (70-80 percent). Chance of
showers until 6 AM. Chance of thunderstorms
until 7 AM.
Chance of pcpn......50 percent.
Min temperature.....Around 69.
24 hr trend......2 degrees warmer.
Max humidity........95-100 percent.
24 hr trend......Unchanged.
20-foot winds.......West winds 5 to 8 mph.
Mixing height.......1000-1500 ft AGL.
Transport winds.....West around 10 mph.
Smoke dispersal.....90-120 (poor).
Pcpn Amount.........0.03-0.23 in.
.SUNDAY...
Sky/weather.........Mostly cloudy (70-80 percent) until 5 PM, then
mostly sunny (35-45 percent). Slight chance of
showers and thunderstorms after 11 AM until 2
PM.
Chance of pcpn......20 percent through early afternoon.
Max temperature.....78-83.
24 hr trend......12 degrees cooler.
Min humidity........62-67 percent.
24 hr trend......15 percent wetter.
20-foot winds.......Northeast winds 7 to 12 mph.
Mixing height.......3800-4300 ft AGL.
Transport winds.....Northeast around 15 mph.
Smoke dispersal.....400-480 (good).
Pcpn Amount.........none to 0.01 in.
.SUNDAY NIGHT...
Sky/weather.........Mostly clear (20-30 percent).
Min temperature.....56-61.
24 hr trend......12 degrees cooler.
Max humidity........92-97 percent.
24 hr trend......Unchanged.
20-foot winds.......East winds 5 to 10 mph.
Mixing height.......1800-2300 ft AGL.
Transport winds.....East 10 to 15 mph.
Smoke dispersal.....70-320 (poor to good).
Pcpn Amount.........none to 0.02 in.
.MONDAY...
Sky/weather.........Mostly sunny (40-50 percent). Chance of showers
and thunderstorms.
Chance of pcpn......40 percent.
Max temperature.....82-87.
24 hr trend......6 degrees warmer.
Min humidity........54-59 percent.
24 hr trend......11 percent drier.
20-foot winds.......Southeast winds 5 to 10 mph.
Mixing height.......3800-4300 ft AGL.
Transport winds.....Southeast around 10 mph.
Smoke dispersal.....440-580 (good).
Pcpn Amount.........0.03-0.20 in.
$$
MIZ065>067-072>074-170815-
Barry-Eaton-Ingham-Kalamazoo-Calhoun-Jackson-
Including the cities of Hastings, Charlotte, Lansing, Kalamazoo,
Battle Creek, and Jackson
306 PM EDT Sat Aug 16 2025
.TONIGHT...
Sky/weather.........Partly cloudy (35-45 percent) until 2 AM, then
mostly cloudy (75-85 percent). Chance of
showers and thunderstorms.
Chance of pcpn......50 percent.
Min temperature.....Around 69.
24 hr trend......1 degree warmer.
Max humidity........95-100 percent.
24 hr trend......Unchanged.
20-foot winds.......Light winds becoming northwest around 5 mph
overnight.
Mixing height.......800-1300 ft AGL.
Transport winds.....Southwest around 10 mph shifting to the
northwest overnight.
Smoke dispersal.....90-100 (poor).
Pcpn Amount.........0.03-0.34 in.
.SUNDAY...
Sky/weather.........Mostly cloudy (70-80 percent) until 5 PM, then
mostly sunny (40-50 percent). Slight chance of
showers and thunderstorms after 11 AM until 2
PM.
Chance of pcpn......20 percent through early afternoon.
Max temperature.....79-84.
24 hr trend......10 degrees cooler.
Min humidity........65-70 percent.
24 hr trend......12 percent wetter.
20-foot winds.......North winds 5 to 10 mph.
Mixing height.......3400-3900 ft AGL.
Transport winds.....North 10 to 15 mph.
Smoke dispersal.....370-460 (good).
Pcpn Amount.........None to 0.40 in.
.SUNDAY NIGHT...
Sky/weather.........Partly cloudy (25-35 percent).
Min temperature.....57-62.
24 hr trend......10 degrees cooler.
Max humidity........95-100 percent.
24 hr trend......Unchanged.
20-foot winds.......Northeast winds 5 to 9 mph.
Mixing height.......1400-1900 ft AGL.
Transport winds.....East 10 to 15 mph.
Smoke dispersal.....80-290 (poor to fair).
Pcpn Amount.........None.
.MONDAY...
Sky/weather.........Mostly sunny (35-45 percent). Chance of showers
and thunderstorms.
Chance of pcpn......30 percent.
Max temperature.....83-88.
24 hr trend......5 degrees warmer.
Min humidity........57-62 percent.
24 hr trend......8 percent drier.
20-foot winds.......Southeast winds 5 to 9 mph.
Mixing height.......4000-4500 ft AGL.
Transport winds.....Southeast around 10 mph.
Smoke dispersal.....390-490 (good).
Pcpn Amount.........none to 0.06 in.
$$
.FORECAST FOR DAYS 3 THROUGH 7...
.MONDAY NIGHT...Partly cloudy with a chance of thunderstorms. Chance
of showers in the evening, then showers likely overnight. Lows in
the mid 60s. South winds 5 to 9 mph.
.TUESDAY...Partly sunny with a chance of showers and a slight chance
of thunderstorms. Highs in the lower 80s. West winds 5 to 10 mph.
.TUESDAY NIGHT...Partly cloudy. Lows in the lower 60s. North winds
5 to 9 mph.
.WEDNESDAY...Mostly sunny. Highs in the upper 70s. Northeast winds
5 to 10 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows in the upper 50s. Northeast
winds 5 to 9 mph.
.THURSDAY...Sunny. Highs in the lower 80s. Northeast winds 5 to
9 mph.
.THURSDAY NIGHT...Mostly clear. Lows in the upper 50s.
.FRIDAY...Sunny. Highs in the mid 80s.
.FRIDAY NIGHT...Mostly clear. Lows in the lower 60s.
.SATURDAY...Sunny. Highs in the lower 80s.
$$