222
FNUS53 KGRR 150835
FWFGRR

Fire Weather Planning Forecast for Southwest Lower Michigan
National Weather Service Grand Rapids MI
435 AM EDT Thu May 15 2025

...Strong Thunderstorms this Evening...

.DISCUSSION...
Thunderstorms with hail and damaging winds are expected this
evening. Thunderstorms are also expected Friday evening. Then
dry and cooler air will move in for early next week.

MIZ037>039-043>045-152015-
Mason-Lake-Osceola-Oceana-Newaygo-Mecosta-
Including the cities of Ludington, Baldwin, Reed City, Hart,
Fremont, and Big Rapids
435 AM EDT Thu May 15 2025

.TODAY...
Sky/weather.........Mostly sunny (45-55 percent). Patchy fog until
                    9 AM.
Max temperature.....76-81 near Lake Michigan and around 84 Inland.
   24 hr trend......7 degrees warmer near Lake Michigan and 5
                    degrees warmer Inland.
Min humidity........45-50 percent.
   24 hr trend......8 percent drier.
20-foot winds.......Southeast winds 7 to 12 mph.
Mixing height.......4200-4700 ft AGL near Lake Michigan and
                    5400-5900 ft AGL Inland.
Transport winds.....Southeast around 10 mph increasing to south
                    around 20 mph in the afternoon.
Smoke dispersal.....580-1150 (good to excellent).
Pcpn Amount.........None.

.TONIGHT...
Sky/weather.........Partly cloudy (35-45 percent). Thunderstorms
                    likely and a chance of rain showers until 11
                    PM, then rain showers likely and a chance of
                    thunderstorms until 2 AM.
Chance of pcpn......70 percent in the evening.
Min temperature.....47-52.
   24 hr trend......2 degrees cooler.
Max humidity........93-98 percent.
   24 hr trend......Unchanged.
20-foot winds.......South winds 6 to 11 mph. Gusts up to 20 mph in
                    the evening.
Mixing height.......1400-1900 ft AGL.
Transport winds.....South around 20 mph becoming southwest around
                    10 mph overnight.
Smoke dispersal.....130-300 (fair to good).
Pcpn Amount.........0.29-0.77 in.

.FRIDAY...
Sky/weather.........Sunny (20-30 percent).
Max temperature.....79-84.
   24 hr trend......1 degree cooler.
Min humidity........37-42 percent near Lake Michigan and 28-33
                    percent Inland.
   24 hr trend......13 percent drier near Lake Michigan and 15
                    percent drier Inland.
20-foot winds.......South winds 11 to 16 mph with gusts to around
                    28 mph.
Mixing height.......Near Lake Michigan, 2800-3300 ft AGL.
Mixing height.......Inland, 4600-5100 ft AGL increasing to
                    7400-7900 ft AGL in the afternoon.
Transport winds.....South around 20 mph increasing to around 30 mph
                    in the afternoon.
Smoke dispersal.....1340 (excellent) increasing to 2390 (excellent)
                    in the afternoon.
Pcpn Amount.........none to 0.03 in.


$$

MIZ040-046-152015-
Clare-Isabella-
Including the cities of Clare and Mount Pleasant
435 AM EDT Thu May 15 2025

.TODAY...
Sky/weather.........Partly sunny (55-65 percent). Patchy fog until
                    9 AM.
Max temperature.....Around 80.
   24 hr trend......7 degrees warmer.
Min humidity........51-56 percent.
   24 hr trend......18 percent drier.
20-foot winds.......Southeast winds 6 to 11 mph.
Mixing height.......4900-5400 ft AGL.
Transport winds.....South 10 to 15 mph.
Smoke dispersal.....450-870 (good to excellent).
Pcpn Amount.........None.

.TONIGHT...
Sky/weather.........Partly cloudy (35-45 percent). Chance of
                    showers and thunderstorms until 11 PM, then
                    rain showers with thunderstorms likely until 2
                    AM.
Chance of pcpn......80 percent in the evening.
Min temperature.....Around 60.
   24 hr trend......Unchanged.
Max humidity........93-98 percent.
   24 hr trend......Unchanged.
20-foot winds.......Southeast winds around 8 mph shifting to the
                    southwest around 7 mph overnight.
Mixing height.......1300-1800 ft AGL.
Transport winds.....South around 15 mph shifting to the southwest
                    overnight.
Smoke dispersal.....130-250 (fair).
Pcpn Amount.........0.23-0.73 in.

.FRIDAY...
Sky/weather.........Sunny (15-25 percent).
Max temperature.....Around 83.
   24 hr trend......2 degrees warmer.
Min humidity........26-31 percent.
   24 hr trend......21 percent drier.
20-foot winds.......Southwest winds 10 to 15 mph with gusts to
                    around 26 mph.
Mixing height.......7600-8100 ft AGL.
Transport winds.....Southwest 20 to 25 mph.
Smoke dispersal.....1460 (excellent) increasing to 2220 (excellent)
                    in the afternoon.
Pcpn Amount.........none to 0.01 in.


$$

MIZ050-056-064-071-152015-
Muskegon-Ottawa-Allegan-Van Buren-
Including the cities of Muskegon, Grand Haven, Jenison, Holland,
and South Haven
435 AM EDT Thu May 15 2025

.TODAY...
Sky/weather.........Sunny (20-30 percent). Patchy fog until 9 AM.
Max temperature.....82-87.
   24 hr trend......6 degrees warmer.
Min humidity........44-49 percent.
   24 hr trend......7 percent drier.
20-foot winds.......Southeast winds 7 to 12 mph.
Mixing height.......4200-4700 ft AGL near Lake Michigan and
                    5400-5900 ft AGL Inland.
Transport winds.....South around 10 mph increasing to around 20 mph
                    in the afternoon.
Smoke dispersal.....900-1160 (excellent).
Pcpn Amount.........none to 0.02 in.

.TONIGHT...
Sky/weather.........Partly cloudy (30-40 percent). Rain showers
                    until 11 PM. Chance of thunderstorms until 2
                    AM. Chance of rain showers after 11 PM until 2
                    AM.
Chance of pcpn......80 percent in the evening.
Min temperature.....53-58.
   24 hr trend......Unchanged.
Max humidity........86-91 percent.
   24 hr trend......Unchanged.
20-foot winds.......Southwest winds 7 to 12 mph. Gusts up to 21 mph
                    in the evening.
Mixing height.......700-1200 ft AGL.
Transport winds.....Southwest around 15 mph.
Smoke dispersal.....100-190 (poor to fair).
Pcpn Amount.........0.39-0.95 in.

.FRIDAY...
Sky/weather.........Sunny (15-25 percent). Chance of rain showers
                    after 2 PM.
Chance of pcpn......30 percent in the afternoon.
Max temperature.....80-85.
   24 hr trend......Unchanged.
Min humidity........33-38 percent.
   24 hr trend......18 percent drier.
20-foot winds.......South winds 10 to 15 mph with gusts to around
                    27 mph.
Mixing height.......4000-4500 ft AGL near Lake Michigan and
                    7400-7900 ft AGL Inland.
Transport winds.....South 20 to 25 mph.
Smoke dispersal.....1370 (excellent) increasing to 2070 (excellent)
                    in the afternoon.
Pcpn Amount.........none to 0.05 in.


$$

MIZ051-052-057>059-152015-
Montcalm-Gratiot-Kent-Ionia-Clinton-
Including the cities of Greenville, Alma, Grand Rapids, Ionia,
and St. Johns
435 AM EDT Thu May 15 2025

.TODAY...
Sky/weather.........Mostly sunny (40-50 percent). Patchy fog until
                    9 AM.
Max temperature.....Around 83.
   24 hr trend......6 degrees warmer.
Min humidity........47-52 percent.
   24 hr trend......8 percent drier.
20-foot winds.......Southeast winds 7 to 12 mph.
Mixing height.......5600-6100 ft AGL.
Transport winds.....South 10 to 15 mph.
Smoke dispersal.....630-1100 (excellent).
Pcpn Amount.........none to 0.01 in.

.TONIGHT...
Sky/weather.........Partly cloudy (30-40 percent). Chance of
                    showers and thunderstorms until 11 PM, then
                    showers and thunderstorms likely until 2 AM.
Chance of pcpn......70 percent in the evening.
Min temperature.....58-63.
   24 hr trend......Unchanged.
Max humidity........89-94 percent.
   24 hr trend......Unchanged.
20-foot winds.......South winds around 11 mph and gusty shifting to
                    the southwest around 9 mph overnight.
Mixing height.......800-1300 ft AGL.
Transport winds.....South around 15 mph shifting to the southwest
                    overnight.
Smoke dispersal.....120-210 (poor to fair).
Pcpn Amount.........0.25-0.71 in.

.FRIDAY...
Sky/weather.........Sunny (15-25 percent).
Max temperature.....Around 84.
   24 hr trend......1 degree warmer.
Min humidity........29-34 percent.
   24 hr trend......18 percent drier.
20-foot winds.......Southwest winds 12 to 17 mph with gusts to
                    around 28 mph.
Mixing height.......7500-8000 ft AGL.
Transport winds.....Southwest around 15 mph increasing to south
                    around 25 mph in the afternoon.
Smoke dispersal.....1390 (excellent) increasing to 2080 (excellent)
                    in the afternoon.
Pcpn Amount.........none to 0.03 in.


$$

MIZ065>067-072>074-152015-
Barry-Eaton-Ingham-Kalamazoo-Calhoun-Jackson-
Including the cities of Hastings, Charlotte, Lansing, Kalamazoo,
Battle Creek, and Jackson
435 AM EDT Thu May 15 2025

.TODAY...
Sky/weather.........Mostly sunny (30-40 percent). Patchy fog until
                    9 AM.
Max temperature.....81-86.
   24 hr trend......6 degrees warmer.
Min humidity........47-52 percent.
   24 hr trend......7 percent drier.
20-foot winds.......South winds 7 to 12 mph.
Mixing height.......5400-5900 ft AGL.
Transport winds.....South around 10 mph increasing to around 20 mph
                    in the afternoon.
Smoke dispersal.....870-1110 (excellent).
Pcpn Amount.........None.

.TONIGHT...
Sky/weather.........Partly cloudy (30-40 percent). Showers likely
                    until 2 AM. Chance of thunderstorms until 5 AM.

Chance of pcpn......70 percent.
Min temperature.....59-64.
   24 hr trend......1 degree warmer.
Max humidity........92-97 percent.
   24 hr trend......Unchanged.
20-foot winds.......Southwest winds 7 to 12 mph. Gusts up to 21 mph
                    in the evening.
Mixing height.......1000-1500 ft AGL.
Transport winds.....South around 15 mph shifting to the west
                    overnight.
Smoke dispersal.....110-210 (poor to fair).
Pcpn Amount.........0.19-0.80 in.

.FRIDAY...
Sky/weather.........Sunny (10-20 percent).
Max temperature.....Around 84.
   24 hr trend......1 degree warmer.
Min humidity........31-36 percent.
   24 hr trend......20 percent drier.
20-foot winds.......Southwest winds 10 to 15 mph with gusts to
                    around 26 mph.
Mixing height.......7100-7600 ft AGL.
Transport winds.....Southwest around 15 mph increasing to south
                    around 25 mph in the afternoon.
Smoke dispersal.....1410-1920 (excellent).
Pcpn Amount.........none to 0.01 in.


$$

.FORECAST FOR DAYS 3 THROUGH 7...

.FRIDAY NIGHT...Partly cloudy. Showers and a chance of thunderstorms
in the evening, then a chance of showers and a slight chance of
thunderstorms overnight. Lows in the lower 50s. Southwest winds 5 to
10 mph.
.SATURDAY...Partly sunny with a chance of showers. Highs in the
lower 60s. West winds 10 to 15 mph.
.SATURDAY NIGHT...Partly cloudy. Lows in the mid 40s. Northwest
winds 7 to 12 mph.
.SUNDAY...Mostly sunny. Highs in the lower 60s. Northwest winds 6 to
11 mph.
.SUNDAY NIGHT...Partly cloudy. Lows in the lower 40s. North winds
5 to 10 mph.
.MONDAY...Mostly sunny. Highs in the mid 60s. Northeast winds 5 to
10 mph.
.MONDAY NIGHT...Partly cloudy. Lows in the lower 40s.
.TUESDAY...Partly sunny with a chance of showers. Highs in the upper
60s.
.TUESDAY NIGHT...Mostly cloudy with showers likely. Lows in the
upper 40s.
.WEDNESDAY...Mostly cloudy. Showers likely until midday, then a
chance of showers in the afternoon. Highs in the mid 60s.

$$