401
FNUS53 KGRR 250836
FWFGRR

Fire Weather Planning Forecast for Southwest Lower Michigan
National Weather Service Grand Rapids MI
436 AM EDT Wed Jun 25 2025

...Hot and Humid with Several Chances for Showers and Storms...

.DISCUSSION...

Dew points largely in the 60s and 70s will keep minimum relative
humidity values in the 50s and 60s into next week. Highs in the 80s
and 90s will continue heat index values in the 90s. Heat index values
may approach 100 Thursday, Friday, and Sunday.

Showers are expected this morning. Isolated showers and storms are
then possible during the afternoon and evening, but most stay dry.
Best chances will be south of I-94. Chances increase tonight into
Thursday with the warm front moving through and winds shifting to the
south. A cold front will move through Thursday night into Friday
continuing chances for rain and thunderstorms. Saturday looks dry
before chances for rain and thunderstorms return Sunday into Tuesday.


MIZ037>039-043>045-252030-
Mason-Lake-Osceola-Oceana-Newaygo-Mecosta-
Including the cities of Ludington, Baldwin, Reed City, Hart,
Fremont, and Big Rapids
436 AM EDT Wed Jun 25 2025

.TODAY...
Sky/weather.........Mostly cloudy (75-85 percent). Slight chance of
                    thunderstorms until 9 AM. Slight chance of
                    showers. Slight chance of thunderstorms after 5
                    PM.
Chance of pcpn......20 percent.
Max temperature.....78-83.
   24 hr trend......6 degrees cooler.
Min humidity........52-57 percent near Lake Michigan and 44-49
                    percent Inland.
   24 hr trend......Unchanged near Lake Michigan and 10 percent
                    wetter Inland.
20-foot winds.......East winds 5 to 8 mph.
Mixing height.......2000-2500 ft AGL near Lake Michigan and
                    3900-4400 ft AGL Inland.
Transport winds.....East 5 to 10 mph.
Smoke dispersal.....230-280 (fair).
Pcpn Amount.........none to 0.06 in.

.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.....58-63.
   24 hr trend......3 degrees cooler.
Max humidity........95-100 percent.
   24 hr trend......Unchanged.
20-foot winds.......East winds 5 to 8 mph.
Mixing height.......900-1400 ft AGL.
Transport winds.....Southeast 10 to 15 mph.
Smoke dispersal.....100-140 (poor to fair).
Pcpn Amount.........0.06-0.42 in.

.THURSDAY...
Sky/weather.........Partly sunny (60-70 percent). Chance of showers
                    and thunderstorms.
Chance of pcpn......50 percent.
Max temperature.....81-86.
   24 hr trend......4 degrees warmer.
Min humidity........63-68 percent.
   24 hr trend......3 percent wetter.
20-foot winds.......South winds 5 to 9 mph.
Mixing height.......800-1300 ft AGL near Lake Michigan and
                    3800-4300 ft AGL Inland.
Transport winds.....Southwest around 10 mph.
Smoke dispersal.....440-620 (good to excellent).
Pcpn Amount.........0.06-0.27 in.


$$

MIZ040-046-252030-
Clare-Isabella-
Including the cities of Clare and Mount Pleasant
436 AM EDT Wed Jun 25 2025

.TODAY...
Sky/weather.........Mostly cloudy (75-85 percent). Chance of
                    showers until 12 PM. Slight chance of showers
                    after 3 PM. Slight chance of thunderstorms
                    after 5 PM until 7 PM.
Chance of pcpn......30 percent.
Max temperature.....77-82.
   24 hr trend......7 degrees cooler.
Min humidity........38-43 percent.
   24 hr trend......5 percent drier.
20-foot winds.......East winds 5 to 8 mph.
Mixing height.......4600-5100 ft AGL.
Transport winds.....East around 5 mph.
Smoke dispersal.....210-250 (fair).
Pcpn Amount.........none to 0.01 in.

.TONIGHT...
Sky/weather.........Mostly cloudy (75-85 percent). Chance of
                    showers and thunderstorms after 11 PM.
Chance of pcpn......50 percent after midnight.
Min temperature.....Around 61.
   24 hr trend......2 degrees cooler.
Max humidity........92-97 percent.
   24 hr trend......Unchanged.
20-foot winds.......East winds 5 to 8 mph.
Mixing height.......900-1400 ft AGL.
Transport winds.....East around 10 mph.
Smoke dispersal.....90-110 (poor).
Pcpn Amount.........0.06-0.27 in.

.THURSDAY...
Sky/weather.........Partly sunny (65-75 percent). Chance of showers
                    and thunderstorms.
Chance of pcpn......50 percent.
Max temperature.....77-82.
   24 hr trend......2 degrees warmer.
Min humidity........61-66 percent.
   24 hr trend......19 percent wetter.
20-foot winds.......Southeast winds 5 to 9 mph.
Mixing height.......3500-4000 ft AGL.
Transport winds.....South 10 to 15 mph.
Smoke dispersal.....270-540 (fair to good).
Pcpn Amount.........0.06-0.26 in.


$$

MIZ050-056-064-071-252030-
Muskegon-Ottawa-Allegan-Van Buren-
Including the cities of Muskegon, Grand Haven, Jenison, Holland,
and South Haven
436 AM EDT Wed Jun 25 2025

.TODAY...
Sky/weather.........Mostly cloudy (75-85 percent) until 5 PM, then
                    mostly sunny (45-55 percent). Slight chance of
                    thunderstorms until 9 AM. Chance of showers.
                    Slight chance of thunderstorms after 2 PM.
Chance of pcpn......40 percent.
Max temperature.....82-87.
   24 hr trend......9 degrees cooler.
Min humidity........61-66 percent.
   24 hr trend......12 percent wetter.
20-foot winds.......Northeast winds 5 to 8 mph.
Mixing height.......2000-2500 ft AGL near Lake Michigan and
                    4300-4800 ft AGL Inland.
Transport winds.....Northeast around 5 mph.
Smoke dispersal.....220-320 (fair to good).
Pcpn Amount.........None to 0.65 in.

.TONIGHT...
Sky/weather.........Partly cloudy (45-55 percent). Chance of
                    showers and thunderstorms.
Chance of pcpn......40 percent.
Min temperature.....65-70.
   24 hr trend......2 degrees warmer.
Max humidity........95-100 percent.
   24 hr trend......Unchanged.
20-foot winds.......Light winds becoming southeast around 5 mph
                    overnight.
Mixing height.......400-900 ft AGL near Lake Michigan and 1400-1900
                    ft AGL Inland.
Transport winds.....East around 10 mph shifting to the south
                    overnight.
Smoke dispersal.....60-120 (poor).
Pcpn Amount.........0.02-0.44 in.

.THURSDAY...
Sky/weather.........Mostly sunny (35-45 percent). Chance of showers
                    and thunderstorms.
Chance of pcpn......50 percent.
Max temperature.....86-91.
   24 hr trend......6 degrees warmer.
Min humidity........56-61 percent.
   24 hr trend......10 percent drier.
20-foot winds.......Southwest winds 5 to 10 mph.
Mixing height.......1500-2000 ft AGL near Lake Michigan and
                    4700-5200 ft AGL Inland.
Transport winds.....Southwest around 10 mph.
Smoke dispersal.....570-810 (good to excellent).
Pcpn Amount.........0.01-0.14 in.


$$

MIZ051-052-057>059-252030-
Montcalm-Gratiot-Kent-Ionia-Clinton-
Including the cities of Greenville, Alma, Grand Rapids, Ionia,
and St. Johns
436 AM EDT Wed Jun 25 2025

.TODAY...
Sky/weather.........Mostly cloudy (70-80 percent). Slight chance of
                    thunderstorms until 9 AM. Chance of showers.
                    Slight chance of thunderstorms after 2 PM.
Chance of pcpn......40 percent.
Max temperature.....77-82.
   24 hr trend......12 degrees cooler.
Min humidity........55-60 percent.
   24 hr trend......15 percent wetter.
20-foot winds.......East winds 5 to 10 mph.
Mixing height.......2700-3200 ft AGL.
Transport winds.....East around 10 mph.
Smoke dispersal.....200-210 (fair).
Pcpn Amount.........None to 0.18 in.

.TONIGHT...
Sky/weather.........Partly cloudy (50-60 percent) until 5 AM, then
                    mostly cloudy (70-80 percent). Chance of
                    showers and thunderstorms after 11 PM.
Chance of pcpn......40 percent after midnight.
Min temperature.....63-68.
   24 hr trend......3 degrees cooler.
Max humidity........92-97 percent.
   24 hr trend......Unchanged.
20-foot winds.......East winds 5 to 9 mph.
Mixing height.......1100-1600 ft AGL.
Transport winds.....East around 10 mph.
Smoke dispersal.....60-120 (poor).
Pcpn Amount.........None to 0.20 in.

.THURSDAY...
Sky/weather.........Partly sunny (55-65 percent). Chance of showers
                    and thunderstorms.
Chance of pcpn......50 percent.
Max temperature.....84-89.
   24 hr trend......5 degrees warmer.
Min humidity........57-62 percent.
   24 hr trend......2 percent drier.
20-foot winds.......South winds 5 to 10 mph.
Mixing height.......4500-5000 ft AGL.
Transport winds.....Southwest 10 to 15 mph.
Smoke dispersal.....550-720 (good to excellent).
Pcpn Amount.........0.03-0.38 in.


$$

MIZ065>067-072>074-252030-
Barry-Eaton-Ingham-Kalamazoo-Calhoun-Jackson-
Including the cities of Hastings, Charlotte, Lansing, Kalamazoo,
Battle Creek, and Jackson
436 AM EDT Wed Jun 25 2025

.TODAY...
Sky/weather.........Mostly cloudy (70-80 percent) until 5 PM, then
                    mostly sunny (45-55 percent). Slight chance of
                    thunderstorms until 11 AM. Chance of showers.
                    Chance of thunderstorms after 2 PM.
Chance of pcpn......40 percent.
Max temperature.....82-87.
   24 hr trend......8 degrees cooler.
Min humidity........59-64 percent.
   24 hr trend......8 percent wetter.
20-foot winds.......Light winds becoming northeast around 6 mph in
                    the afternoon.
Mixing height.......4600-5100 ft AGL.
Transport winds.....North around 5 mph.
Smoke dispersal.....240-330 (fair to good).
Pcpn Amount.........0.02-0.37 in.

.TONIGHT...
Sky/weather.........Partly cloudy (45-55 percent). Chance of
                    showers and thunderstorms.
Chance of pcpn......30 percent.
Min temperature.....66-71.
   24 hr trend......1 degree warmer.
Max humidity........92-97 percent.
   24 hr trend......Unchanged.
20-foot winds.......Light winds becoming southeast around 5 mph
                    overnight.
Mixing height.......1500-2000 ft AGL.
Transport winds.....East around 10 mph shifting to the south
                    overnight.
Smoke dispersal.....50-120 (poor).
Pcpn Amount.........none to 0.09 in.

.THURSDAY...
Sky/weather.........Mostly sunny (45-55 percent). Chance of showers
                    until 11 AM. Chance of thunderstorms. Showers
                    likely after 11 AM.
Chance of pcpn......60 percent.
Max temperature.....86-91.
   24 hr trend......6 degrees warmer.
Min humidity........57-62 percent.
   24 hr trend......11 percent drier.
20-foot winds.......Southwest winds 5 to 10 mph.
Mixing height.......5100-5600 ft AGL.
Transport winds.....Southwest around 15 mph.
Smoke dispersal.....630-870 (excellent).
Pcpn Amount.........0.04-0.56 in.


$$

.FORECAST FOR DAYS 3 THROUGH 7...

.THURSDAY NIGHT...Partly cloudy. Showers likely and a chance of
thunderstorms in the evening, then a chance of showers and a slight
chance of thunderstorms overnight. Lows in the upper 60s. South
winds 5 to 9 mph.
.FRIDAY...Partly sunny with a chance of showers. Chance of
thunderstorms. Highs in the mid 80s. Southwest winds 5 to 10 mph.
.FRIDAY NIGHT...Partly cloudy. Chance of showers. Lows in the lower
60s. Northwest winds 5 to 9 mph.
.SATURDAY...Mostly sunny. Highs in the mid 80s. West winds 5 to
9 mph.
.SATURDAY NIGHT...Partly cloudy. Lows in the mid 60s. Southwest
winds 5 to 6 mph.
.SUNDAY...Mostly sunny. Highs around 90. Southwest winds 5 to 9 mph.
.SUNDAY NIGHT...Partly cloudy with a chance of showers and
thunderstorms. Lows in the upper 60s.
.MONDAY...Partly sunny with a chance of showers. Chance of
thunderstorms. Highs in the mid 80s.
.MONDAY NIGHT...Partly cloudy. Lows in the lower 60s.
.TUESDAY...Sunny. Highs in the lower 80s.

$$