279
FNUS53 KGRR 161922
FWFGRR

Fire Weather Planning Forecast for Southwest Lower Michigan
National Weather Service Grand Rapids MI
322 PM EDT Fri May 16 2025

...Cooler Into Next Week...

.DISCUSSION...

Another round of thunderstorms is expected tonight and may produce
strong winds. As the storms exit temperatures cool with some
lingering showers into Saturday. Winds will be gusty Saturday
afternoon westerly winds gusting 30 to 40 mph.

Dry conditions return for Sunday and the beginning of the week with
highs in the 50s and 60s. Minimum relative humidity values will
gradually fall from the 60s Saturday to the mid 30s to around 50 from
north to south Monday. The lowest relative humidity values are
expected Tuesday with values in the 30s along and north of a Grand
Haven to Mount Pleasant line. Northeast winds will also be breezy
Tuesday with gusts of 20 to 25 mph.


MIZ037>039-043>045-170830-
Mason-Lake-Osceola-Oceana-Newaygo-Mecosta-
Including the cities of Ludington, Baldwin, Reed City, Hart,
Fremont, and Big Rapids
322 PM EDT Fri May 16 2025

.TONIGHT...
Sky/weather.........Partly cloudy (55-65 percent) until 11 PM, then
                    mostly cloudy (70-80 percent) until 2 AM, then
                    partly cloudy (65-75 percent) until 5 AM, then
                    mostly cloudy (80-90 percent). Rain showers and
                    a chance of thunderstorms until 2 AM, then a
                    chance of rain showers.
Chance of pcpn......80 percent.
Min temperature.....45-50.
   24 hr trend......6 degrees cooler.
Max humidity........91-96 percent.
   24 hr trend......Unchanged.
20-foot winds.......Southwest winds 7 to 12 mph and gusty.
Mixing height.......400-900 ft AGL near Lake Michigan and 1300-1800
                    ft AGL Inland.
Transport winds.....Southwest 15 to 20 mph.
Smoke dispersal.....230-400 (fair to good).
Pcpn Amount.........0.11-0.48 in.

.SATURDAY...
Sky/weather.........Mostly cloudy (80-90 percent). Chance of rain
                    showers.
Chance of pcpn......50 percent.
Max temperature.....55-60.
   24 hr trend......25 degrees cooler.
Min humidity........62-67 percent.
   24 hr trend......37 percent wetter.
20-foot winds.......West winds 12 to 17 mph with gusts to around 29
                    mph.
Mixing height.......1300-1800 ft AGL near Lake Michigan and
                    2500-3000 ft AGL Inland.
Transport winds.....West around 25 mph.
Smoke dispersal.....700-820 (excellent).
Pcpn Amount.........None to 0.14 in.

.SATURDAY NIGHT...
Sky/weather.........Mostly cloudy (70-80 percent) until 11 PM, then
                    partly cloudy (55-65 percent). Chance of rain
                    showers until 11 PM.
Chance of pcpn......30 percent in the evening.
Min temperature.....40-45.
   24 hr trend......5 degrees cooler.
Max humidity........91-96 percent.
   24 hr trend......Unchanged.
20-foot winds.......Northwest winds 8 to 13 mph and gusty.
Mixing height.......1100-1600 ft AGL near Lake Michigan and
                    1700-2200 ft AGL Inland.
Transport winds.....Northwest around 20 mph.
Smoke dispersal.....440 (good).
Pcpn Amount.........none to 0.01 in.

.SUNDAY...
Sky/weather.........Mostly sunny (45-55 percent).
Max temperature.....58-63.
   24 hr trend......Unchanged.
Min humidity........56-61 percent near Lake Michigan and 47-52
                    percent Inland.
   24 hr trend......9 percent drier near Lake Michigan and 16
                    percent drier Inland.
20-foot winds.......Northwest winds 7 to 12 mph. Gusts up to 20 mph
                    in the afternoon.
Mixing height.......1900-2400 ft AGL near Lake Michigan and
                    3600-4100 ft AGL Inland.
Transport winds.....North around 15 mph.
Smoke dispersal.....440-470 (good).
Pcpn Amount.........None.


$$

MIZ040-046-170830-
Clare-Isabella-
Including the cities of Clare and Mount Pleasant
322 PM EDT Fri May 16 2025

.TONIGHT...
Sky/weather.........Partly cloudy (40-50 percent) until 11 PM, then
                    mostly cloudy (75-85 percent) until 2 AM, then
                    partly cloudy (60-70 percent) until 5 AM, then
                    mostly cloudy (75-85 percent). Rain showers and
                    a chance of thunderstorms until 2 AM, then a
                    chance of rain showers.
Chance of pcpn......80 percent.
Min temperature.....47-52.
   24 hr trend......6 degrees cooler.
Max humidity........91-96 percent.
   24 hr trend......Unchanged.
20-foot winds.......South winds 8 to 13 mph and gusty.
Mixing height.......1500-2000 ft AGL.
Transport winds.....Southwest 15 to 20 mph.
Smoke dispersal.....270-410 (fair to good).
Pcpn Amount.........0.22-0.48 in.

.SATURDAY...
Sky/weather.........Mostly cloudy (75-85 percent). Chance of rain
                    showers.
Chance of pcpn......50 percent.
Max temperature.....Around 60.
   24 hr trend......25 degrees cooler.
Min humidity........62-67 percent.
   24 hr trend......32 percent wetter.
20-foot winds.......West winds 12 to 17 mph with gusts to around 30
                    mph.
Mixing height.......2700-3200 ft AGL.
Transport winds.....West 25 to 30 mph.
Smoke dispersal.....720-880 (excellent).
Pcpn Amount.........none to 0.04 in.

.SATURDAY NIGHT...
Sky/weather.........Partly cloudy (50-60 percent).
Min temperature.....41-46.
   24 hr trend......5 degrees cooler.
Max humidity........91-96 percent.
   24 hr trend......Unchanged.
20-foot winds.......Northwest winds 10 to 15 mph with gusts to
                    around 26 mph.
Mixing height.......1700-2200 ft AGL.
Transport winds.....Northwest 20 to 25 mph.
Smoke dispersal.....480-530 (good).
Pcpn Amount.........none to 0.01 in.

.SUNDAY...
Sky/weather.........Partly sunny (50-60 percent).
Max temperature.....59-64.
   24 hr trend......2 degrees warmer.
Min humidity........47-52 percent.
   24 hr trend......14 percent drier.
20-foot winds.......Northwest winds 7 to 12 mph.
Mixing height.......3800-4300 ft AGL.
Transport winds.....Northwest 10 to 15 mph.
Smoke dispersal.....480-520 (good).
Pcpn Amount.........None.


$$

MIZ050-056-064-071-170830-
Muskegon-Ottawa-Allegan-Van Buren-
Including the cities of Muskegon, Grand Haven, Jenison, Holland,
and South Haven
322 PM EDT Fri May 16 2025

.TONIGHT...
Sky/weather.........Partly cloudy (55-65 percent) until 5 AM, then
                    mostly cloudy (75-85 percent). Rain showers and
                    a chance of thunderstorms until 2 AM. Slight
                    chance of rain showers after 2 AM.
Chance of pcpn......80 percent.
Min temperature.....48-53.
   24 hr trend......3 degrees cooler.
Max humidity........81-86 percent.
   24 hr trend......Unchanged.
20-foot winds.......Southwest winds 9 to 14 mph and gusty.
Mixing height.......1300-1800 ft AGL.
Transport winds.....Southwest around 20 mph.
Smoke dispersal.....220-360 (fair to good).
Pcpn Amount.........0.09-0.32 in.

.SATURDAY...
Sky/weather.........Cloudy (85-95 percent) until 5 PM, then partly
                    sunny (50-60 percent). Slight chance of rain
                    showers until 2 PM.
Chance of pcpn......20 percent until midday.
Max temperature.....59-64.
   24 hr trend......23 degrees cooler.
Min humidity........55-60 percent.
   24 hr trend......29 percent wetter.
20-foot winds.......West winds 15 to 20 mph with gusts to around 32
                    mph.
Mixing height.......2100-2600 ft AGL near Lake Michigan and
                    3700-4200 ft AGL Inland.
Transport winds.....West around 30 mph.
Smoke dispersal.....1000-1220 (excellent).
Pcpn Amount.........none to 0.02 in.

.SATURDAY NIGHT...
Sky/weather.........Partly cloudy (40-50 percent).
Min temperature.....43-48.
   24 hr trend......5 degrees cooler.
Max humidity........84-89 percent.
   24 hr trend......Unchanged.
20-foot winds.......Northwest winds 8 to 13 mph. Gusts up to 24 mph
                    in the evening.
Mixing height.......1600-2100 ft AGL.
Transport winds.....Northwest around 20 mph.
Smoke dispersal.....390-420 (good).
Pcpn Amount.........None.

.SUNDAY...
Sky/weather.........Sunny (20-30 percent).
Max temperature.....59-64.
   24 hr trend......1 degree warmer.
Min humidity........51-56 percent.
   24 hr trend......9 percent drier.
20-foot winds.......Northwest winds 7 to 12 mph. Gusts up to 20 mph
                    in the afternoon.
Mixing height.......2200-2700 ft AGL near Lake Michigan and
                    3300-3800 ft AGL Inland.
Transport winds.....Northwest around 15 mph.
Smoke dispersal.....480-490 (good).
Pcpn Amount.........None.


$$

MIZ051-052-057>059-170830-
Montcalm-Gratiot-Kent-Ionia-Clinton-
Including the cities of Greenville, Alma, Grand Rapids, Ionia,
and St. Johns
322 PM EDT Fri May 16 2025

.TONIGHT...
Sky/weather.........Partly cloudy (55-65 percent) until 11 PM, then
                    mostly cloudy (65-75 percent) until 2 AM, then
                    partly cloudy (55-65 percent) until 5 AM, then
                    mostly cloudy (70-80 percent). Rain showers and
                    a chance of thunderstorms until 2 AM. Chance of
                    rain showers after 2 AM.
Chance of pcpn......80 percent.
Min temperature.....50-55.
   24 hr trend......3 degrees cooler.
Max humidity........85-90 percent.
   24 hr trend......Unchanged.
20-foot winds.......Southwest winds 10 to 15 mph and gusty.
Mixing height.......1500-2000 ft AGL.
Transport winds.....Southwest around 20 mph.
Smoke dispersal.....230-470 (fair to good).
Pcpn Amount.........0.13-0.38 in.

.SATURDAY...
Sky/weather.........Mostly cloudy (80-90 percent). Chance of rain
                    showers.
Chance of pcpn......40 percent.
Max temperature.....Around 60.
   24 hr trend......25 degrees cooler.
Min humidity........62-67 percent.
   24 hr trend......33 percent wetter.
20-foot winds.......West winds 16 to 21 mph with gusts to around 34
                    mph.
Mixing height.......3000-3500 ft AGL.
Transport winds.....West around 30 mph.
Smoke dispersal.....860-1080 (excellent).
Pcpn Amount.........none to 0.04 in.

.SATURDAY NIGHT...
Sky/weather.........Partly cloudy (40-50 percent).
Min temperature.....44-49.
   24 hr trend......6 degrees cooler.
Max humidity........84-89 percent.
   24 hr trend......Unchanged.
20-foot winds.......West winds 10 to 15 mph with gusts to around 26
                    mph.
Mixing height.......2000-2500 ft AGL.
Transport winds.....Northwest 20 to 25 mph.
Smoke dispersal.....510-650 (good to excellent).
Pcpn Amount.........None.

.SUNDAY...
Sky/weather.........Partly sunny (50-60 percent).
Max temperature.....Around 64.
   24 hr trend......5 degrees warmer.
Min humidity........48-53 percent.
   24 hr trend......11 percent drier.
20-foot winds.......Northwest winds 8 to 13 mph.
Mixing height.......3700-4200 ft AGL.
Transport winds.....Northwest 10 to 15 mph.
Smoke dispersal.....410-470 (good).
Pcpn Amount.........None.


$$

MIZ065>067-072>074-170830-
Barry-Eaton-Ingham-Kalamazoo-Calhoun-Jackson-
Including the cities of Hastings, Charlotte, Lansing, Kalamazoo,
Battle Creek, and Jackson
322 PM EDT Fri May 16 2025

.TONIGHT...
Sky/weather.........Partly cloudy (50-60 percent) until 5 AM, then
                    mostly cloudy (70-80 percent). Rain showers
                    with thunderstorms likely until 2 AM, then a
                    slight chance of rain showers.
Chance of pcpn......80 percent.
Min temperature.....51-56.
   24 hr trend......4 degrees cooler.
Max humidity........85-90 percent.
   24 hr trend......Unchanged.
20-foot winds.......Southwest winds 10 to 15 mph and gusty.
Mixing height.......1400-1900 ft AGL.
Transport winds.....Southwest around 20 mph.
Smoke dispersal.....300-390 (good).
Pcpn Amount.........0.06-0.38 in.

.SATURDAY...
Sky/weather.........Mostly cloudy (75-85 percent). Slight chance of
                    rain showers until 5 PM.
Chance of pcpn......20 percent.
Max temperature.....Around 61.
   24 hr trend......23 degrees cooler.
Min humidity........55-60 percent.
   24 hr trend......30 percent wetter.
20-foot winds.......West winds 16 to 21 mph with gusts to around 34
                    mph.
Mixing height.......3600-4100 ft AGL.
Transport winds.....West around 30 mph.
Smoke dispersal.....1040-1240 (excellent).
Pcpn Amount.........none to 0.01 in.

.SATURDAY NIGHT...
Sky/weather.........Partly cloudy (35-45 percent).
Min temperature.....Around 48.
   24 hr trend......5 degrees cooler.
Max humidity........84-89 percent.
   24 hr trend......Unchanged.
20-foot winds.......West winds 10 to 15 mph with gusts to around 26
                    mph.
Mixing height.......2000-2500 ft AGL.
Transport winds.....West 20 to 25 mph.
Smoke dispersal.....430-630 (good to excellent).
Pcpn Amount.........None.

.SUNDAY...
Sky/weather.........Mostly sunny (40-50 percent).
Max temperature.....63-68.
   24 hr trend......3 degrees warmer.
Min humidity........48-53 percent.
   24 hr trend......8 percent drier.
20-foot winds.......Northwest winds 8 to 13 mph.
Mixing height.......3700-4200 ft AGL.
Transport winds.....Northwest 10 to 15 mph.
Smoke dispersal.....580-590 (good).
Pcpn Amount.........None.


$$

.FORECAST FOR DAYS 3 THROUGH 7...

.SUNDAY NIGHT...Partly cloudy. Lows in the lower 40s. North winds
5 to 9 mph.
.MONDAY...Partly sunny. Highs in the mid 60s. Northeast winds 5 to
10 mph.
.MONDAY NIGHT...Partly cloudy. Lows in the lower 40s. East winds
5 to 10 mph.
.TUESDAY...Partly sunny with a chance of showers. Highs around 60.
East winds 8 to 13 mph.
.TUESDAY NIGHT...Mostly cloudy with a chance of showers. Lows in the
lower 40s. Northeast winds 8 to 13 mph.
.WEDNESDAY...Partly sunny with a chance of showers. Highs around 60.
Northeast winds 8 to 13 mph.
.WEDNESDAY NIGHT...Partly cloudy with a chance of showers. Lows in
the lower 40s.
.THURSDAY...Partly sunny with a chance of showers. Highs in the
lower 60s.
.THURSDAY NIGHT...Partly cloudy. Lows in the mid 40s.
.FRIDAY...Partly sunny. Highs in the mid 60s.

$$