257
FNUS53 KGRR 160826
FWFGRR

Fire Weather Planning Forecast for Southwest Lower Michigan
National Weather Service Grand Rapids MI
426 AM EDT Tue Sep 16 2025

...Dry Weather Continues...

.DISCUSSION...

Rain chances hold off until the weekend as high pressure remains in
place. Highs this week will largely be in the 80s with light easterly
winds. A lake breeze is expected each afternoon today and tomorrow
along the lakeshore. Thursday winds will be more northerly with a
front moving through Thursday night with east/northeast winds for
Friday. Minimum relative humidity values are expected to be in the
30s with higher values along the lakeshore. Friday behind the front
values increase into the 40s to low 50s. There is a chance (20
percent) that minimum relative humidity values drop into the 20s
today and tomorrow.


MIZ037>039-043>045-162015-
Mason-Lake-Osceola-Oceana-Newaygo-Mecosta-
Including the cities of Ludington, Baldwin, Reed City, Hart,
Fremont, and Big Rapids
426 AM EDT Tue Sep 16 2025

.TODAY...
Sky/weather.........Sunny (15-25 percent). Patchy fog until 10 AM.

Max temperature.....76-81 near Lake Michigan and around 84 Inland.
   24 hr trend......3 degrees cooler near Lake Michigan and 1
                    degree warmer Inland.
Min humidity........44-49 percent near Lake Michigan and 35-40
                    percent Inland.
   24 hr trend......8 percent wetter near Lake Michigan and 6
                    percent drier Inland.
20-foot winds.......East winds 5 to 6 mph.
Mixing height.......Near Lake Michigan, 800-1300 ft AGL increasing
                    to 2900-3400 ft AGL in the afternoon.
Mixing height.......Inland, 1000-1500 ft AGL increasing to
                    5300-5800 ft AGL in the afternoon.
Transport winds.....Southeast around 5 mph shifting to the
                    northeast in the afternoon.
Smoke dispersal.....70-300 (poor to good).
Pcpn Amount.........None.

.TONIGHT...
Sky/weather.........Mostly clear (10-20 percent). Patchy fog after
                    4 AM.
Min temperature.....48-53.
   24 hr trend......1 degree cooler.
Max humidity........95-100 percent.
   24 hr trend......Unchanged.
20-foot winds.......East winds 5 to 6 mph.
Mixing height.......Near Lake Michigan, 700-1200 ft AGL.
Mixing height.......Inland, 4700-5200 ft AGL decreasing to 100-600
                    ft AGL after midnight.
Transport winds.....Northeast around 5 mph shifting to the
                    southeast after midnight.
Smoke dispersal.....40-250 (poor to fair).
Pcpn Amount.........None.

.WEDNESDAY...
Sky/weather.........Sunny (15-25 percent). Patchy fog until 8 AM.
Max temperature.....82-87.
   24 hr trend......1 degree warmer.
Min humidity........49-54 percent near Lake Michigan and 35-40
                    percent Inland.
   24 hr trend......4 percent wetter near Lake Michigan and 3
                    percent wetter Inland.
20-foot winds.......Light winds.
Mixing height.......Near Lake Michigan, 2000-2500 ft AGL.
Mixing height.......Inland, 1400-1900 ft AGL increasing to
                    5300-5800 ft AGL in the afternoon.
Transport winds.....South around 5 mph shifting to the northwest in
                    the afternoon.
Smoke dispersal.....100-310 (poor to good).
Pcpn Amount.........None.


$$

MIZ040-046-162015-
Clare-Isabella-
Including the cities of Clare and Mount Pleasant
426 AM EDT Tue Sep 16 2025

.TODAY...
Sky/weather.........Mostly sunny (30-40 percent). Areas of fog
                    until 8 AM, then widespread dense fog until 9
                    AM, then areas of fog until 10 AM.
Max temperature.....Around 83.
   24 hr trend......2 degrees warmer.
Min humidity........33-38 percent.
   24 hr trend......4 percent drier.
20-foot winds.......East winds up to 5 mph.
Mixing height.......900-1400 ft AGL increasing to 4900-5400 ft AGL
                    in the afternoon.
Transport winds.....East around 5 mph.
Smoke dispersal.....40-290 (poor to fair).
Pcpn Amount.........None.

.TONIGHT...
Sky/weather.........Mostly clear (15-25 percent). Patchy fog after
                    2 AM.
Min temperature.....Around 50.
   24 hr trend......2 degrees cooler.
Max humidity........95-100 percent.
   24 hr trend......Unchanged.
20-foot winds.......East winds 5 to 6 mph.
Mixing height.......4700-5200 ft AGL decreasing to 0-500 ft AGL
                    after midnight.
Transport winds.....East around 5 mph.
Smoke dispersal.....30-230 (poor to fair).
Pcpn Amount.........None.

.WEDNESDAY...
Sky/weather.........Sunny (10-20 percent). Areas of fog until 9 AM.

Max temperature.....Around 86.
   24 hr trend......3 degrees warmer.
Min humidity........32-37 percent.
   24 hr trend......Unchanged.
20-foot winds.......West winds up to 5 mph.
Mixing height.......1600-2100 ft AGL increasing to 5700-6200 ft AGL
                    in the afternoon.
Transport winds.....West around 5 mph shifting to the northwest in
                    the afternoon.
Smoke dispersal.....80-280 (poor to fair).
Pcpn Amount.........None.


$$

MIZ050-056-064-071-162015-
Muskegon-Ottawa-Allegan-Van Buren-
Including the cities of Muskegon, Grand Haven, Jenison, Holland,
and South Haven
426 AM EDT Tue Sep 16 2025

.TODAY...
Sky/weather.........Sunny (5-15 percent).
Max temperature.....80-85.
   24 hr trend......Unchanged.
Min humidity........33-38 percent.
   24 hr trend......4 percent drier.
20-foot winds.......Light winds becoming northeast around 5 mph in
                    the afternoon.
Mixing height.......Near Lake Michigan, 1100-1600 ft AGL increasing
                    to 4300-4800 ft AGL in the afternoon.
Mixing height.......Inland, 1800-2300 ft AGL increasing to
                    5400-5900 ft AGL in the afternoon.
Transport winds.....East around 5 mph.
Smoke dispersal.....150-520 (fair to good).
Pcpn Amount.........None.

.TONIGHT...
Sky/weather.........Mostly clear (10-20 percent).
Min temperature.....52-57.
   24 hr trend......1 degree cooler.
Max humidity........95-100 percent.
   24 hr trend......Unchanged.
20-foot winds.......North winds around 5 mph in the evening
                    becoming light.
Mixing height.......Near Lake Michigan, 1200-1700 ft AGL.
Mixing height.......Inland, 5000-5500 ft AGL decreasing to 0-500 ft
                    AGL after midnight.
Transport winds.....Northeast around 5 mph shifting to the east
                    after midnight.
Smoke dispersal.....40-360 (poor to good).
Pcpn Amount.........None.

.WEDNESDAY...
Sky/weather.........Sunny (15-25 percent). Patchy fog until 8 AM.
Max temperature.....77-82 near Lake Michigan and around 85 Inland.
   24 hr trend......1 degree cooler near Lake Michigan and 1 degree
                    warmer Inland.
Min humidity........45-50 percent near Lake Michigan and 36-41
                    percent Inland.
   24 hr trend......6 percent wetter near Lake Michigan and 3
                    percent wetter Inland.
20-foot winds.......Light winds.
Mixing height.......Near Lake Michigan, 1100-1600 ft AGL increasing
                    to 3500-4000 ft AGL in the afternoon.
Mixing height.......Inland, 1500-2000 ft AGL increasing to
                    6000-6500 ft AGL in the afternoon.
Transport winds.....Southeast around 5 mph shifting to the north in
                    the afternoon.
Smoke dispersal.....90-290 (poor to fair).
Pcpn Amount.........None.


$$

MIZ051-052-057>059-162015-
Montcalm-Gratiot-Kent-Ionia-Clinton-
Including the cities of Greenville, Alma, Grand Rapids, Ionia,
and St. Johns
426 AM EDT Tue Sep 16 2025

.TODAY...
Sky/weather.........Mostly sunny (30-40 percent). Patchy fog until
                    10 AM.
Max temperature.....Around 84.
   24 hr trend......2 degrees warmer.
Min humidity........35-40 percent.
   24 hr trend......6 percent drier.
20-foot winds.......Light winds becoming east around 5 mph in the
                    afternoon.
Mixing height.......1100-1600 ft AGL increasing to 5200-5700 ft AGL
                    in the afternoon.
Transport winds.....East around 5 mph.
Smoke dispersal.....70-380 (poor to good).
Pcpn Amount.........None.

.TONIGHT...
Sky/weather.........Mostly clear (10-20 percent). Patchy fog after
                    4 AM.
Min temperature.....49-54.
   24 hr trend......1 degree cooler.
Max humidity........95-100 percent.
   24 hr trend......Unchanged.
20-foot winds.......East winds 5 to 6 mph.
Mixing height.......5000-5500 ft AGL decreasing to 100-600 ft AGL
                    after midnight.
Transport winds.....East around 5 mph.
Smoke dispersal.....40-310 (poor to good).
Pcpn Amount.........None.

.WEDNESDAY...
Sky/weather.........Sunny (20-30 percent). Patchy fog until 9 AM.
Max temperature.....Around 85.
   24 hr trend......3 degrees warmer.
Min humidity........35-40 percent.
   24 hr trend......Unchanged.
20-foot winds.......Light winds.
Mixing height.......1400-1900 ft AGL increasing to 5800-6300 ft AGL
                    in the afternoon.
Transport winds.....Southeast around 5 mph shifting to the north in
                    the afternoon.
Smoke dispersal.....60-280 (poor to fair).
Pcpn Amount.........None.


$$

MIZ065>067-072>074-162015-
Barry-Eaton-Ingham-Kalamazoo-Calhoun-Jackson-
Including the cities of Hastings, Charlotte, Lansing, Kalamazoo,
Battle Creek, and Jackson
426 AM EDT Tue Sep 16 2025

.TODAY...
Sky/weather.........Sunny (10-20 percent). Patchy fog after 8 AM
                    until 9 AM.
Max temperature.....Around 84.
   24 hr trend......Unchanged.
Min humidity........31-36 percent.
   24 hr trend......8 percent drier.
20-foot winds.......Light winds becoming northeast around 6 mph in
                    the afternoon.
Mixing height.......2600-3100 ft AGL increasing to 5500-6000 ft AGL
                    in the afternoon.
Transport winds.....East 5 to 10 mph.
Smoke dispersal.....280-500 (fair to good).
Pcpn Amount.........None.

.TONIGHT...
Sky/weather.........Mostly clear (10-20 percent). Patchy fog after
                    5 AM.
Min temperature.....50-55.
   24 hr trend......Unchanged.
Max humidity........95-100 percent.
   24 hr trend......Unchanged.
20-foot winds.......East winds 5 to 6 mph.
Mixing height.......5300-5800 ft AGL decreasing to 100-600 ft AGL
                    after midnight.
Transport winds.....East around 5 mph.
Smoke dispersal.....40-360 (poor to good).
Pcpn Amount.........None.

.WEDNESDAY...
Sky/weather.........Sunny (15-25 percent). Patchy fog until 9 AM.
Max temperature.....Around 85.
   24 hr trend......1 degree warmer.
Min humidity........33-38 percent.
   24 hr trend......1 percent wetter.
20-foot winds.......Light winds.
Mixing height.......2000-2500 ft AGL increasing to 6000-6500 ft AGL
                    in the afternoon.
Transport winds.....East around 5 mph shifting to the north in the
                    afternoon.
Smoke dispersal.....100-280 (poor to fair).
Pcpn Amount.........None.


$$

.FORECAST FOR DAYS 3 THROUGH 7...

.WEDNESDAY NIGHT...Mostly clear. Lows in the mid 50s. North winds
5 to 6 mph in the evening becoming light.
.THURSDAY...Sunny. Highs in the mid 80s. Light winds becoming
northwest 5 to 6 mph in the afternoon.
.THURSDAY NIGHT...Partly cloudy. Lows in the mid 50s. North winds
5 to 6 mph shifting to the northeast after midnight.
.FRIDAY...Mostly sunny. Highs in the lower 80s. East winds 5 to
10 mph.
.FRIDAY NIGHT...Partly cloudy. Lows in the mid 50s. East winds 5 to
10 mph.
.SATURDAY...Partly sunny. Highs in the upper 70s. Southeast winds
5 to 10 mph.
.SATURDAY NIGHT...Partly cloudy. Chance of showers. Lows in the
upper 50s.
.SUNDAY...Partly sunny with a chance of showers. Highs in the upper
70s.
.SUNDAY NIGHT...Partly cloudy with a chance of showers. Lows around
60.
.MONDAY...Partly sunny with a chance of showers. Highs in the upper
70s.

$$