Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Grand Rapids, MI
Issued by NWS Grand Rapids, MI
082
FNUS53 KGRR 171908
FWFGRR
Fire Weather Planning Forecast for Southwest Lower Michigan
National Weather Service Grand Rapids MI
308 PM EDT Sun Aug 17 2025
...Cooler With Showers and Storms Monday Night into Tuesday...
.DISCUSSION...
The next several days will be notably cooler than yesterday
with highs topping out in the low to mid eighties. Winds will
be generally 10 mph or less. Falling dewpoints will lead to Min
RH values in the forties for Monday. Showers and thunderstorms
arrive Monday Night into Tuesday with widespread rainfall of
0.25 to 0.5 inches. Isolated totals in excess of 1 inch are
possible.
MIZ037>039-043>045-180815-
Mason-Lake-Osceola-Oceana-Newaygo-Mecosta-
Including the cities of Ludington, Baldwin, Reed City, Hart,
Fremont, and Big Rapids
308 PM EDT Sun Aug 17 2025
.TONIGHT...
Sky/weather.........Partly cloudy (20-30 percent).
Min temperature.....52-57.
24 hr trend......7 degrees cooler.
Max humidity........88-93 percent.
24 hr trend......Unchanged.
20-foot winds.......East winds 5 to 10 mph. Gusts up to 20 mph
overnight.
Mixing height.......1000-1500 ft AGL near Lake Michigan and
2000-2500 ft AGL Inland.
Transport winds.....East around 15 mph.
Smoke dispersal.....170-310 (fair to good).
Pcpn Amount.........None.
.MONDAY...
Sky/weather.........Mostly sunny (35-45 percent). Slight chance of
rain showers after 2 PM.
Chance of pcpn......20 percent in the afternoon.
Max temperature.....80-85.
24 hr trend......1 degree cooler.
Min humidity........39-44 percent.
24 hr trend......5 percent drier.
20-foot winds.......Southeast winds 6 to 11 mph.
Mixing height.......2500-3000 ft AGL near Lake Michigan and
3800-4300 ft AGL Inland.
Transport winds.....Southeast 10 to 15 mph.
Smoke dispersal.....390-550 (good).
Pcpn Amount.........none to 0.05 in.
.MONDAY NIGHT...
Sky/weather.........Partly cloudy (55-65 percent) until 11 PM, then
mostly cloudy (75-85 percent). Chance of
showers until 2 AM. Chance of thunderstorms.
Showers likely after 2 AM.
Chance of pcpn......70 percent.
Min temperature.....58-63.
24 hr trend......6 degrees warmer.
Max humidity........95-100 percent.
24 hr trend......Unchanged.
20-foot winds.......Southeast winds 5 to 9 mph.
Mixing height.......1100-1600 ft AGL.
Transport winds.....South around 15 mph.
Smoke dispersal.....150-160 (fair).
Pcpn Amount.........0.15-0.75 in.
.TUESDAY...
Sky/weather.........Mostly cloudy (65-75 percent). Chance of
showers and thunderstorms.
Chance of pcpn......40 percent.
Max temperature.....75-80.
24 hr trend......4 degrees cooler.
Min humidity........69-74 percent.
24 hr trend......29 percent wetter.
20-foot winds.......South winds around 7 mph shifting to the west
around 8 mph in the afternoon.
Mixing height.......2000-2500 ft AGL near Lake Michigan and
3100-3600 ft AGL Inland.
Transport winds.....Southwest around 10 mph shifting to the west in
the afternoon.
Smoke dispersal.....270-470 (fair to good).
Pcpn Amount.........0.04-0.23 in.
$$
MIZ040-046-180815-
Clare-Isabella-
Including the cities of Clare and Mount Pleasant
308 PM EDT Sun Aug 17 2025
.TONIGHT...
Sky/weather.........Mostly clear (15-25 percent).
Min temperature.....Around 54.
24 hr trend......14 degrees cooler.
Max humidity........91-96 percent.
24 hr trend......Unchanged.
20-foot winds.......East winds around 7 mph in the evening becoming
light.
Mixing height.......2100-2600 ft AGL decreasing to 100-600 ft AGL
overnight.
Transport winds.....East around 10 mph.
Smoke dispersal.....70-300 (poor to good).
Pcpn Amount.........None.
.MONDAY...
Sky/weather.........Mostly sunny (20-30 percent).
Max temperature.....Around 81.
24 hr trend......4 degrees warmer.
Min humidity........41-46 percent.
24 hr trend......14 percent drier.
20-foot winds.......Southeast winds 5 to 10 mph.
Mixing height.......4300-4800 ft AGL.
Transport winds.....Southeast 10 to 15 mph.
Smoke dispersal.....420-570 (good).
Pcpn Amount.........None.
.MONDAY NIGHT...
Sky/weather.........Partly cloudy (35-45 percent) until 2 AM, then
mostly cloudy (75-85 percent). Chance of rain
showers. Chance of thunderstorms after 11 PM.
Chance of pcpn......50 percent.
Min temperature.....56-61.
24 hr trend......7 degrees warmer.
Max humidity........95-100 percent.
24 hr trend......Unchanged.
20-foot winds.......Southeast winds 5 to 8 mph.
Mixing height.......1200-1700 ft AGL.
Transport winds.....South around 15 mph.
Smoke dispersal.....120-180 (poor to fair).
Pcpn Amount.........0.15-0.48 in.
.TUESDAY...
Sky/weather.........Mostly cloudy (70-80 percent). Chance of
showers.
Chance of pcpn......40 percent.
Max temperature.....76-81.
24 hr trend......4 degrees cooler.
Min humidity........69-74 percent.
24 hr trend......32 percent wetter.
20-foot winds.......South winds around 6 mph shifting to the
southwest around 7 mph in the afternoon.
Mixing height.......3100-3600 ft AGL.
Transport winds.....South around 15 mph shifting to the west in the
afternoon.
Smoke dispersal.....380-460 (good).
Pcpn Amount.........0.11-0.33 in.
$$
MIZ050-056-064-071-180815-
Muskegon-Ottawa-Allegan-Van Buren-
Including the cities of Muskegon, Grand Haven, Jenison, Holland,
and South Haven
308 PM EDT Sun Aug 17 2025
.TONIGHT...
Sky/weather.........Mostly clear (20-30 percent).
Min temperature.....58-63.
24 hr trend......11 degrees cooler.
Max humidity........82-87 percent.
24 hr trend......Unchanged.
20-foot winds.......East winds 5 to 10 mph. Gusts up to 20 mph
overnight.
Mixing height.......2300-2800 ft AGL.
Transport winds.....East around 15 mph.
Smoke dispersal.....220-330 (fair to good).
Pcpn Amount.........None.
.MONDAY...
Sky/weather.........Mostly sunny (25-35 percent).
Max temperature.....83-88.
24 hr trend......2 degrees warmer.
Min humidity........43-48 percent.
24 hr trend......7 percent drier.
20-foot winds.......Southeast winds 6 to 11 mph.
Mixing height.......Near Lake Michigan, 3400-3900 ft AGL.
Mixing height.......Inland, 2500-3000 ft AGL increasing to
4700-5200 ft AGL in the afternoon.
Transport winds.....Southeast 10 to 15 mph.
Smoke dispersal.....330-560 (good).
Pcpn Amount.........none to 0.04 in.
.MONDAY NIGHT...
Sky/weather.........Partly cloudy (40-50 percent) until 5 AM, then
mostly cloudy (75-85 percent). Chance of
thunderstorms. Showers likely after 2 AM.
Chance of pcpn......60 percent.
Min temperature.....63-68.
24 hr trend......4 degrees warmer.
Max humidity........95-100 percent.
24 hr trend......Unchanged.
20-foot winds.......Southeast winds 5 to 9 mph.
Mixing height.......900-1400 ft AGL.
Transport winds.....South around 15 mph.
Smoke dispersal.....120-140 (poor to fair).
Pcpn Amount.........0.13-0.72 in.
.TUESDAY...
Sky/weather.........Partly sunny (60-70 percent). Chance of showers
and thunderstorms.
Chance of pcpn......40 percent.
Max temperature.....80-85.
24 hr trend......4 degrees cooler.
Min humidity........67-72 percent.
24 hr trend......24 percent wetter.
20-foot winds.......South winds around 7 mph shifting to the west
around 8 mph in the afternoon.
Mixing height.......2000-2500 ft AGL near Lake Michigan and
3100-3600 ft AGL Inland.
Transport winds.....West around 15 mph.
Smoke dispersal.....450-530 (good).
Pcpn Amount.........0.06-0.68 in.
$$
MIZ051-052-057>059-180815-
Montcalm-Gratiot-Kent-Ionia-Clinton-
Including the cities of Greenville, Alma, Grand Rapids, Ionia,
and St. Johns
308 PM EDT Sun Aug 17 2025
.TONIGHT...
Sky/weather.........Mostly clear (15-25 percent).
Min temperature.....54-59.
24 hr trend......15 degrees cooler.
Max humidity........91-96 percent.
24 hr trend......Unchanged.
20-foot winds.......East winds 5 to 10 mph.
Mixing height.......2000-2500 ft AGL.
Transport winds.....East around 15 mph.
Smoke dispersal.....110-350 (poor to good).
Pcpn Amount.........None.
.MONDAY...
Sky/weather.........Mostly sunny (25-35 percent).
Max temperature.....81-86.
24 hr trend......2 degrees warmer.
Min humidity........44-49 percent.
24 hr trend......9 percent drier.
20-foot winds.......Southeast winds 5 to 10 mph.
Mixing height.......4400-4900 ft AGL.
Transport winds.....Southeast around 10 mph.
Smoke dispersal.....310-510 (good).
Pcpn Amount.........None.
.MONDAY NIGHT...
Sky/weather.........Partly cloudy (35-45 percent) until 5 AM, then
mostly cloudy (75-85 percent). Chance of
showers and thunderstorms after 2 AM.
Chance of pcpn......40 percent overnight.
Min temperature.....61-66.
24 hr trend......6 degrees warmer.
Max humidity........95-100 percent.
24 hr trend......Unchanged.
20-foot winds.......Southeast winds 5 to 9 mph.
Mixing height.......1300-1800 ft AGL.
Transport winds.....South around 15 mph.
Smoke dispersal.....110-150 (poor to fair).
Pcpn Amount.........0.05-0.26 in.
.TUESDAY...
Sky/weather.........Mostly cloudy (70-80 percent). Chance of
showers and thunderstorms.
Chance of pcpn......40 percent.
Max temperature.....Around 81.
24 hr trend......Unchanged.
Min humidity........67-72 percent.
24 hr trend......25 percent wetter.
20-foot winds.......Southwest winds 6 to 11 mph.
Mixing height.......3600-4100 ft AGL.
Transport winds.....Southwest around 15 mph.
Smoke dispersal.....440-560 (good).
Pcpn Amount.........0.11-0.20 in.
$$
MIZ065>067-072>074-180815-
Barry-Eaton-Ingham-Kalamazoo-Calhoun-Jackson-
Including the cities of Hastings, Charlotte, Lansing, Kalamazoo,
Battle Creek, and Jackson
308 PM EDT Sun Aug 17 2025
.TONIGHT...
Sky/weather.........Mostly clear (15-25 percent).
Min temperature.....55-60.
24 hr trend......16 degrees cooler.
Max humidity........91-96 percent.
24 hr trend......Unchanged.
20-foot winds.......East winds 5 to 9 mph.
Mixing height.......1600-2100 ft AGL.
Transport winds.....East 10 to 15 mph.
Smoke dispersal.....130-240 (fair).
Pcpn Amount.........None.
.MONDAY...
Sky/weather.........Mostly sunny (25-35 percent).
Max temperature.....81-86.
24 hr trend......1 degree warmer.
Min humidity........47-52 percent.
24 hr trend......12 percent drier.
20-foot winds.......Southeast winds 5 to 9 mph.
Mixing height.......4100-4600 ft AGL.
Transport winds.....Southeast around 10 mph.
Smoke dispersal.....320-430 (good).
Pcpn Amount.........None.
.MONDAY NIGHT...
Sky/weather.........Partly cloudy (35-45 percent). Chance of
showers and thunderstorms after 2 AM.
Chance of pcpn......30 percent overnight.
Min temperature.....59-64.
24 hr trend......6 degrees warmer.
Max humidity........92-97 percent.
24 hr trend......Unchanged.
20-foot winds.......Southeast winds 5 to 9 mph.
Mixing height.......1400-1900 ft AGL.
Transport winds.....Southeast around 15 mph.
Smoke dispersal.....80-130 (poor to fair).
Pcpn Amount.........None to 0.21 in.
.TUESDAY...
Sky/weather.........Partly sunny (65-75 percent). Chance of showers
and thunderstorms.
Chance of pcpn......50 percent.
Max temperature.....Around 83.
24 hr trend......1 degree warmer.
Min humidity........67-72 percent.
24 hr trend......24 percent wetter.
20-foot winds.......Southwest winds 5 to 10 mph.
Mixing height.......3100-3600 ft AGL.
Transport winds.....Southwest 10 to 15 mph.
Smoke dispersal.....330-460 (good).
Pcpn Amount.........0.14-0.67 in.
$$
.FORECAST FOR DAYS 3 THROUGH 7...
.TUESDAY NIGHT...Partly cloudy. Slight chance of showers and
thunderstorms in the evening. Lows in the lower 60s. North winds
5 to 9 mph.
.WEDNESDAY...Partly sunny. Highs in the upper 70s. North winds 5 to
10 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows in the upper 50s. Northeast
winds 5 to 9 mph.
.THURSDAY...Sunny. Highs in the lower 80s. Northeast winds 5 to
9 mph.
.THURSDAY NIGHT...Clear. Lows in the upper 50s. East winds 5 to
6 mph in the evening becoming light.
.FRIDAY...Sunny. Highs in the mid 80s. Southwest winds 5 to 9 mph.
.FRIDAY NIGHT...Partly cloudy. Lows in the lower 60s.
.SATURDAY...Sunny. Highs in the lower 80s.
.SATURDAY NIGHT...Mostly clear. Lows in the mid 50s.
.SUNDAY...Mostly sunny. Highs in the mid 70s.
$$