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 182003
FWFGRR
Fire Weather Planning Forecast for Southwest Lower Michigan
National Weather Service Grand Rapids MI
403 PM EDT Mon Aug 18 2025
...Showers and Storms Tonight into Tuesday...
.DISCUSSION...
Showers and thunderstorms will arrive late this evening and
cross the area through Tuesday ahead of a cold front.
Widespread rainfall of 0.25-0.5 inches is expected with isolated
totals at or above 1 inch, particularly near the lakeshore.
Conditions then dry out for Wednesday and Thursday with highs
in the low to mid 80s causing minRH values in the upper 40s to
lower 50s.
MIZ037>039-043>045-190815-
Mason-Lake-Osceola-Oceana-Newaygo-Mecosta-
Including the cities of Ludington, Baldwin, Reed City, Hart,
Fremont, and Big Rapids
403 PM EDT Mon Aug 18 2025
.TONIGHT...
Sky/weather.........Mostly cloudy (80-90 percent). Chance of
showers until 2 AM. Chance of thunderstorms.
Showers likely after 2 AM.
Chance of pcpn......60 percent.
Min temperature.....60-65.
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.......800-1300 ft AGL.
Transport winds.....Southeast around 15 mph.
Smoke dispersal.....140-160 (fair).
Pcpn Amount.........0.18-0.72 in.
.TUESDAY...
Sky/weather.........Mostly cloudy (80-90 percent). Chance of
showers and a slight chance of thunderstorms
until 3 PM.
Chance of pcpn......30 percent.
Max temperature.....75-80.
24 hr trend......4 degrees warmer.
Min humidity........74-79 percent.
24 hr trend......29 percent wetter.
20-foot winds.......Southeast winds around 6 mph shifting to the
north around 9 mph in the afternoon.
Mixing height.......2500-3000 ft AGL.
Transport winds.....Southwest around 10 mph shifting to the north
in the afternoon.
Smoke dispersal.....250-350 (fair to good).
Pcpn Amount.........0.02-0.21 in.
.TUESDAY NIGHT...
Sky/weather.........Mostly cloudy (65-75 percent) until 11 PM, then
partly cloudy (45-55 percent).
Min temperature.....57-62.
24 hr trend......5 degrees cooler.
Max humidity........95-100 percent.
24 hr trend......Unchanged.
20-foot winds.......North winds 5 to 9 mph.
Mixing height.......1600-2100 ft AGL.
Transport winds.....North 10 to 15 mph.
Smoke dispersal.....100-290 (poor to fair).
Pcpn Amount.........None.
.WEDNESDAY...
Sky/weather.........Mostly sunny (30-40 percent).
Max temperature.....78-83.
24 hr trend......3 degrees warmer.
Min humidity........58-63 percent near Lake Michigan and 47-52
percent Inland.
24 hr trend......22 percent drier near Lake Michigan and 21
percent drier Inland.
20-foot winds.......North winds 5 to 10 mph.
Mixing height.......3900-4400 ft AGL near Lake Michigan and
5300-5800 ft AGL Inland.
Transport winds.....Northeast 10 to 15 mph.
Smoke dispersal.....600-660 (excellent).
Pcpn Amount.........None.
$$
MIZ040-046-190815-
Clare-Isabella-
Including the cities of Clare and Mount Pleasant
403 PM EDT Mon Aug 18 2025
.TONIGHT...
Sky/weather.........Partly cloudy (65-75 percent) until 11 PM, then
mostly cloudy (80-90 percent). Chance of rain
showers until 2 AM. Chance of thunderstorms.
Rain showers likely after 2 AM.
Chance of pcpn......60 percent.
Min temperature.....Around 61.
24 hr trend......8 degrees warmer.
Max humidity........95-100 percent.
24 hr trend......Unchanged.
20-foot winds.......Southeast winds 5 to 9 mph.
Mixing height.......1200-1700 ft AGL.
Transport winds.....Southeast around 15 mph.
Smoke dispersal.....120-220 (poor to fair).
Pcpn Amount.........0.16-0.37 in.
.TUESDAY...
Sky/weather.........Mostly cloudy (80-90 percent). Chance of
showers and thunderstorms until 7 PM.
Chance of pcpn......50 percent.
Max temperature.....73-78.
24 hr trend......2 degrees cooler.
Min humidity........74-79 percent.
24 hr trend......31 percent wetter.
20-foot winds.......East winds around 6 mph shifting to the north
around 8 mph in the afternoon.
Mixing height.......2300-2800 ft AGL.
Transport winds.....South around 10 mph shifting to the north in
the afternoon.
Smoke dispersal.....200-350 (fair to good).
Pcpn Amount.........0.06-0.33 in.
.TUESDAY NIGHT...
Sky/weather.........Mostly cloudy (70-80 percent) until 11 PM, then
partly cloudy (50-60 percent).
Min temperature.....55-60.
24 hr trend......Unchanged.
Max humidity........99 percent.
24 hr trend......Unchanged.
20-foot winds.......North winds 5 to 10 mph.
Mixing height.......1000-1500 ft AGL.
Transport winds.....North around 15 mph.
Smoke dispersal.....120-210 (poor to fair).
Pcpn Amount.........None.
.WEDNESDAY...
Sky/weather.........Mostly sunny (35-45 percent).
Max temperature.....Around 79.
24 hr trend......5 degrees warmer.
Min humidity........52-57 percent.
24 hr trend......21 percent drier.
20-foot winds.......Northeast winds 5 to 9 mph.
Mixing height.......5000-5500 ft AGL.
Transport winds.....Northeast 10 to 15 mph.
Smoke dispersal.....620-680 (excellent).
Pcpn Amount.........None.
$$
MIZ050-056-064-071-190815-
Muskegon-Ottawa-Allegan-Van Buren-
Including the cities of Muskegon, Grand Haven, Jenison, Holland,
and South Haven
403 PM EDT Mon Aug 18 2025
.TONIGHT...
Sky/weather.........Mostly cloudy (75-85 percent). Chance of
showers until 2 AM. Chance of thunderstorms.
Showers likely after 2 AM.
Chance of pcpn......60 percent.
Min temperature.....65-70.
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.....140-180 (fair).
Pcpn Amount.........0.12-0.75 in.
.TUESDAY...
Sky/weather.........Mostly cloudy (65-75 percent). Chance of
showers and thunderstorms until 4 PM.
Chance of pcpn......40 percent.
Max temperature.....77-82.
24 hr trend......Unchanged.
Min humidity........72-77 percent.
24 hr trend......25 percent wetter.
20-foot winds.......Southwest winds around 7 mph shifting to the
northwest around 11 mph in the afternoon.
Mixing height.......2300-2800 ft AGL.
Transport winds.....Southwest around 15 mph shifting to the
northwest in the afternoon.
Smoke dispersal.....300-410 (good).
Pcpn Amount.........0.03-0.28 in.
.TUESDAY NIGHT...
Sky/weather.........Partly cloudy (50-60 percent).
Min temperature.....61-66.
24 hr trend......3 degrees cooler.
Max humidity........99 percent.
24 hr trend......Unchanged.
20-foot winds.......North winds 5 to 10 mph.
Mixing height.......1900-2400 ft AGL.
Transport winds.....North 10 to 15 mph.
Smoke dispersal.....150-310 (fair to good).
Pcpn Amount.........None.
.WEDNESDAY...
Sky/weather.........Mostly sunny (35-45 percent).
Max temperature.....79-84.
24 hr trend......1 degree warmer.
Min humidity........53-58 percent.
24 hr trend......19 percent drier.
20-foot winds.......North winds 5 to 10 mph.
Mixing height.......4400-4900 ft AGL near Lake Michigan and
5400-5900 ft AGL Inland.
Transport winds.....Northeast 10 to 15 mph.
Smoke dispersal.....600-660 (excellent).
Pcpn Amount.........None.
$$
MIZ051-052-057>059-190815-
Montcalm-Gratiot-Kent-Ionia-Clinton-
Including the cities of Greenville, Alma, Grand Rapids, Ionia,
and St. Johns
403 PM EDT Mon Aug 18 2025
.TONIGHT...
Sky/weather.........Partly cloudy (50-60 percent) until 11 PM, then
mostly cloudy (75-85 percent). Chance of
showers. Chance of thunderstorms after 11 PM.
Chance of pcpn......50 percent.
Min temperature.....62-67.
24 hr trend......7 degrees warmer.
Max humidity........95-100 percent.
24 hr trend......Unchanged.
20-foot winds.......Southeast winds 5 to 10 mph.
Mixing height.......1200-1700 ft AGL.
Transport winds.....Southeast around 15 mph.
Smoke dispersal.....120-160 (poor to fair).
Pcpn Amount.........0.08-0.45 in.
.TUESDAY...
Sky/weather.........Mostly cloudy (70-80 percent). Chance of
showers and thunderstorms.
Chance of pcpn......50 percent.
Max temperature.....Around 79.
24 hr trend......1 degree warmer.
Min humidity........73-78 percent.
24 hr trend......31 percent wetter.
20-foot winds.......South winds around 7 mph shifting to the
northwest around 9 mph in the afternoon.
Mixing height.......2500-3000 ft AGL.
Transport winds.....Southwest around 10 mph shifting to the
northwest in the afternoon.
Smoke dispersal.....250-360 (fair to good).
Pcpn Amount.........0.06-0.26 in.
.TUESDAY NIGHT...
Sky/weather.........Mostly cloudy (65-75 percent) until 11 PM, then
partly cloudy (60-70 percent).
Min temperature.....Around 63.
24 hr trend......Unchanged.
Max humidity........99 percent.
24 hr trend......Unchanged.
20-foot winds.......North winds 7 to 12 mph.
Mixing height.......1700-2200 ft AGL.
Transport winds.....North around 15 mph.
Smoke dispersal.....150-290 (fair).
Pcpn Amount.........none to 0.01 in.
.WEDNESDAY...
Sky/weather.........Mostly sunny (40-50 percent).
Max temperature.....Around 81.
24 hr trend......1 degree warmer.
Min humidity........56-61 percent.
24 hr trend......15 percent drier.
20-foot winds.......Northeast winds 6 to 11 mph.
Mixing height.......5100-5600 ft AGL.
Transport winds.....Northeast around 15 mph.
Smoke dispersal.....620-700 (excellent).
Pcpn Amount.........None.
$$
MIZ065>067-072>074-190815-
Barry-Eaton-Ingham-Kalamazoo-Calhoun-Jackson-
Including the cities of Hastings, Charlotte, Lansing, Kalamazoo,
Battle Creek, and Jackson
403 PM EDT Mon Aug 18 2025
.TONIGHT...
Sky/weather.........Partly cloudy (35-45 percent) until 2 AM, then
mostly cloudy (70-80 percent). Chance of
showers. Chance of thunderstorms after 11 PM.
Chance of pcpn......50 percent.
Min temperature.....62-67.
24 hr trend......10 degrees warmer.
Max humidity........92-97 percent.
24 hr trend......Unchanged.
20-foot winds.......Southeast winds 5 to 10 mph.
Mixing height.......1200-1700 ft AGL.
Transport winds.....Southeast around 15 mph.
Smoke dispersal.....80-200 (poor to fair).
Pcpn Amount.........None to 0.58 in.
.TUESDAY...
Sky/weather.........Mostly cloudy (65-75 percent). Showers likely
until 9 AM. Chance of thunderstorms. Chance of
showers after 9 AM.
Chance of pcpn......60 percent.
Max temperature.....Around 81.
24 hr trend......2 degrees cooler.
Min humidity........73-78 percent.
24 hr trend......29 percent wetter.
20-foot winds.......South winds around 7 mph shifting to the west
around 10 mph in the afternoon.
Mixing height.......2600-3100 ft AGL.
Transport winds.....Southwest around 15 mph shifting to the west in
the afternoon.
Smoke dispersal.....320-420 (good).
Pcpn Amount.........0.08-0.37 in.
.TUESDAY NIGHT...
Sky/weather.........Partly cloudy (65-75 percent) until 2 AM, then
mostly cloudy (70-80 percent).
Min temperature.....Around 64.
24 hr trend......1 degree cooler.
Max humidity........99 percent.
24 hr trend......Unchanged.
20-foot winds.......North winds 6 to 11 mph.
Mixing height.......1500-2000 ft AGL.
Transport winds.....North around 15 mph.
Smoke dispersal.....200-230 (fair).
Pcpn Amount.........none to 0.03 in.
.WEDNESDAY...
Sky/weather.........Partly sunny (50-60 percent).
Max temperature.....Around 80.
24 hr trend......1 degree warmer.
Min humidity........60-65 percent.
24 hr trend......14 percent drier.
20-foot winds.......Northeast winds 5 to 10 mph.
Mixing height.......4600-5100 ft AGL.
Transport winds.....Northeast around 15 mph.
Smoke dispersal.....590-730 (good to excellent).
Pcpn Amount.........None.
$$
.FORECAST FOR DAYS 3 THROUGH 7...
.WEDNESDAY NIGHT...Mostly clear. Lows in the upper 50s. Northeast
winds 5 to 9 mph.
.THURSDAY...Sunny. Highs in the mid 80s. Northeast winds 5 to 9 mph.
.THURSDAY NIGHT...Mostly clear. Lows in the upper 50s. Northeast
winds 5 to 6 mph in the evening becoming light.
.FRIDAY...Sunny. Highs in the mid 80s. Southwest winds 5 to 9 mph.
.FRIDAY NIGHT...Partly cloudy. Lows in the lower 60s. West winds
5 to 8 mph.
.SATURDAY...Sunny. Highs around 80. West winds 6 to 11 mph.
.SATURDAY NIGHT...Mostly clear. Lows in the upper 50s.
.SUNDAY...Sunny. Highs in the lower 70s.
.SUNDAY NIGHT...Mostly clear. Lows in the lower 50s.
.MONDAY...Mostly sunny. Highs in the lower 70s.
$$