767
FNUS53 KGRR 170845
FWFGRR
FIRE WEATHER PLANNING FORECAST FOR SOUTHWEST LOWER MICHIGAN
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
445 AM EDT THU SEP 17 2026
..SHOWERS THIS MORNING, MORE SUBSTANTIAL RAIN THIS WEEKEND
DISCUSSION
LIGHT SHOWERS ARE EXPECTED THIS MORNING BEFORE THINGS DRY
OUT THIS AFTERNOON. DRY CONDITIONS TONIGHT INTO FRIDAY GIVE
WAY TO WIDESPREAD RAIN THIS WEEKEND. OVER 1 INCH OF RAIN IS
LIKELY THIS WEEKEND WITH POCKETS OF OVER 2 INCHES POSSIBLE.
MIZ037>039-043>045-172015-
MASON-LAKE-OSCEOLA-OCEANA-NEWAYGO-MECOSTA-
INCLUDING THE CITIES OF LUDINGTON, BALDWIN, REED CITY, HART,
FREMONT, AND BIG RAPIDS
445 AM EDT THU SEP 17 2026
TODAY
SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT) UNTIL 3 PM, THEN
MOSTLY SUNNY (35-45 PERCENT). CHANCE OF RAIN
SHOWERS UNTIL 11 AM.
CHANCE OF PCPN......30 PERCENT IN THE MORNING.
MAX TEMPERATURE.....69-74.
24 HR TREND......1 DEGREE COOLER.
MIN HUMIDITY........49-54 PERCENT.
24 HR TREND......2 PERCENT WETTER.
20-FOOT WINDS.......LIGHT WINDS BECOMING NORTHEAST AROUND 5 MPH IN
THE AFTERNOON.
MIXING HEIGHT.......2600-3100 FT AGL.
TRANSPORT WINDS.....EAST 5 TO 10 MPH.
SMOKE DISPERSAL.....110-170 (POOR TO FAIR).
PCPN AMOUNT.........NONE TO 0.08 IN.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (30-40 PERCENT).
MIN TEMPERATURE.....43-48.
24 HR TREND......7 DEGREES COOLER.
MAX HUMIDITY........95-100 PERCENT.
24 HR TREND......UNCHANGED.
20-FOOT WINDS.......NORTHEAST WINDS 5 TO 6 MPH.
MIXING HEIGHT.......NEAR LAKE MICHIGAN, 1300-1800 FT AGL.
MIXING HEIGHT.......INLAND, 2200-2700 FT AGL DECREASING TO 0-500 FT
AGL AFTER MIDNIGHT.
TRANSPORT WINDS.....NORTHEAST 5 TO 10 MPH.
SMOKE DISPERSAL.....50-170 (POOR TO FAIR).
PCPN AMOUNT.........NONE.
FRIDAY
SKY/WEATHER.........MOSTLY SUNNY (45-55 PERCENT) UNTIL 3 PM, THEN
MOSTLY CLOUDY (75-85 PERCENT).
MAX TEMPERATURE.....69-74.
24 HR TREND......UNCHANGED.
MIN HUMIDITY........43-48 PERCENT.
24 HR TREND......6 PERCENT DRIER.
20-FOOT WINDS.......NORTHEAST WINDS 5 TO 8 MPH.
MIXING HEIGHT.......2000-2500 FT AGL INCREASING TO 4000-4500 FT AGL
IN THE AFTERNOON.
TRANSPORT WINDS.....NORTHEAST AROUND 10 MPH.
SMOKE DISPERSAL.....260-510 (FAIR TO GOOD).
PCPN AMOUNT.........NONE TO 0.01 IN.
MIZ040-046-172015-
CLARE-ISABELLA-
INCLUDING THE CITIES OF CLARE AND MOUNT PLEASANT
445 AM EDT THU SEP 17 2026
TODAY
SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT) UNTIL 3 PM, THEN
MOSTLY SUNNY (35-45 PERCENT). SLIGHT CHANCE OF
RAIN SHOWERS UNTIL 11 AM.
CHANCE OF PCPN......20 PERCENT IN THE MORNING.
MAX TEMPERATURE.....69-74.
24 HR TREND......1 DEGREE COOLER.
MIN HUMIDITY........47-52 PERCENT.
24 HR TREND......7 PERCENT WETTER.
20-FOOT WINDS.......NORTHEAST WINDS 5 TO 6 MPH.
MIXING HEIGHT.......2500-3000 FT AGL.
TRANSPORT WINDS.....EAST AROUND 5 MPH.
SMOKE DISPERSAL.....100-150 (POOR TO FAIR).
PCPN AMOUNT.........NONE TO 0.04 IN.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (25-35 PERCENT).
MIN TEMPERATURE.....43-48.
24 HR TREND......8 DEGREES COOLER.
MAX HUMIDITY........98 PERCENT.
24 HR TREND......UNCHANGED.
20-FOOT WINDS.......NORTH WINDS UP TO 5 MPH.
MIXING HEIGHT.......2100-2600 FT AGL DECREASING TO 0-500 FT AGL
AFTER MIDNIGHT.
TRANSPORT WINDS.....NORTHEAST AROUND 5 MPH.
SMOKE DISPERSAL.....40-150 (POOR TO FAIR).
PCPN AMOUNT.........NONE.
FRIDAY
SKY/WEATHER.........MOSTLY SUNNY (35-45 PERCENT) UNTIL 3 PM, THEN
MOSTLY CLOUDY (70-80 PERCENT).
MAX TEMPERATURE.....69-74.
24 HR TREND......2 DEGREES COOLER.
MIN HUMIDITY........43-48 PERCENT.
24 HR TREND......4 PERCENT DRIER.
20-FOOT WINDS.......LIGHT WINDS BECOMING NORTHEAST AROUND 6 MPH IN
THE AFTERNOON.
MIXING HEIGHT.......1900-2400 FT AGL INCREASING TO 3900-4400 FT AGL
IN THE AFTERNOON.
TRANSPORT WINDS.....NORTHEAST AROUND 10 MPH.
SMOKE DISPERSAL.....260-500 (FAIR TO GOOD).
PCPN AMOUNT.........NONE.
MIZ050-056-064-071-172015-
MUSKEGON-OTTAWA-ALLEGAN-VAN BUREN-
INCLUDING THE CITIES OF MUSKEGON, GRAND HAVEN, JENISON, HOLLAND,
AND SOUTH HAVEN
445 AM EDT THU SEP 17 2026
TODAY
SKY/WEATHER.........MOSTLY CLOUDY (75-85 PERCENT). CHANCE OF RAIN
SHOWERS UNTIL 2 PM. SLIGHT CHANCE OF
THUNDERSTORMS AFTER 8 AM UNTIL 11 AM.
CHANCE OF PCPN......30 PERCENT UNTIL LATE AFTERNOON.
MAX TEMPERATURE.....74-79.
24 HR TREND......1 DEGREE WARMER.
MIN HUMIDITY........59-64 PERCENT.
24 HR TREND......UNCHANGED.
20-FOOT WINDS.......LIGHT WINDS BECOMING NORTHEAST AROUND 5 MPH IN
THE AFTERNOON.
MIXING HEIGHT.......1800-2300 FT AGL.
TRANSPORT WINDS.....EAST AROUND 5 MPH.
SMOKE DISPERSAL.....120-150 (POOR TO FAIR).
PCPN AMOUNT.........0.01-0.16 IN.
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT) UNTIL 12 AM, THEN
PARTLY CLOUDY (45-55 PERCENT).
MIN TEMPERATURE.....50-55.
24 HR TREND......7 DEGREES COOLER.
MAX HUMIDITY........95-100 PERCENT.
24 HR TREND......UNCHANGED.
20-FOOT WINDS.......NORTHEAST WINDS 5 TO 7 MPH.
MIXING HEIGHT.......1700-2200 FT AGL.
TRANSPORT WINDS.....NORTHEAST AROUND 10 MPH.
SMOKE DISPERSAL.....120-140 (POOR TO FAIR).
PCPN AMOUNT.........NONE.
FRIDAY
SKY/WEATHER.........MOSTLY SUNNY (45-55 PERCENT).
MAX TEMPERATURE.....71-76.
24 HR TREND......UNCHANGED.
MIN HUMIDITY........43-48 PERCENT.
24 HR TREND......21 PERCENT DRIER.
20-FOOT WINDS.......EAST WINDS 5 TO 9 MPH.
MIXING HEIGHT.......1800-2300 FT AGL INCREASING TO 4700-5200 FT AGL
IN THE AFTERNOON.
TRANSPORT WINDS.....EAST AROUND 10 MPH.
SMOKE DISPERSAL.....300-550 (GOOD).
PCPN AMOUNT.........NONE.
MIZ051-052-057>059-172015-
MONTCALM-GRATIOT-KENT-IONIA-CLINTON-
INCLUDING THE CITIES OF GREENVILLE, ALMA, GRAND RAPIDS, IONIA,
AND ST. JOHNS
445 AM EDT THU SEP 17 2026
TODAY
SKY/WEATHER.........MOSTLY CLOUDY (75-85 PERCENT). CHANCE OF RAIN
SHOWERS UNTIL 11 AM.
CHANCE OF PCPN......30 PERCENT IN THE MORNING.
MAX TEMPERATURE.....AROUND 74.
24 HR TREND......1 DEGREE WARMER.
MIN HUMIDITY........53-58 PERCENT.
24 HR TREND......9 PERCENT DRIER.
20-FOOT WINDS.......NORTHEAST WINDS 5 TO 8 MPH.
MIXING HEIGHT.......1700-2200 FT AGL.
TRANSPORT WINDS.....EAST 5 TO 10 MPH.
SMOKE DISPERSAL.....120-150 (POOR TO FAIR).
PCPN AMOUNT.........0.02-0.15 IN.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (40-50 PERCENT).
MIN TEMPERATURE.....46-51.
24 HR TREND......7 DEGREES COOLER.
MAX HUMIDITY........95-100 PERCENT.
24 HR TREND......UNCHANGED.
20-FOOT WINDS.......NORTHEAST WINDS 5 TO 7 MPH.
MIXING HEIGHT.......1700-2200 FT AGL.
TRANSPORT WINDS.....NORTHEAST AROUND 10 MPH.
SMOKE DISPERSAL.....60-140 (POOR TO FAIR).
PCPN AMOUNT.........NONE.
FRIDAY
SKY/WEATHER.........MOSTLY SUNNY (40-50 PERCENT).
MAX TEMPERATURE.....AROUND 74.
24 HR TREND......1 DEGREE WARMER.
MIN HUMIDITY........47-52 PERCENT.
24 HR TREND......11 PERCENT DRIER.
20-FOOT WINDS.......NORTHEAST WINDS 5 TO 10 MPH.
MIXING HEIGHT.......2000-2500 FT AGL INCREASING TO 4400-4900 FT AGL
IN THE AFTERNOON.
TRANSPORT WINDS.....NORTHEAST AROUND 10 MPH.
SMOKE DISPERSAL.....320-550 (GOOD).
PCPN AMOUNT.........NONE.
MIZ065>067-072>074-172015-
BARRY-EATON-INGHAM-KALAMAZOO-CALHOUN-JACKSON-
INCLUDING THE CITIES OF HASTINGS, CHARLOTTE, LANSING, KALAMAZOO,
BATTLE CREEK, AND JACKSON
445 AM EDT THU SEP 17 2026
TODAY
SKY/WEATHER.........MOSTLY CLOUDY (80-90 PERCENT). CHANCE OF RAIN
SHOWERS UNTIL 2 PM.
CHANCE OF PCPN......30 PERCENT UNTIL LATE AFTERNOON.
MAX TEMPERATURE.....AROUND 75.
24 HR TREND......3 DEGREES WARMER.
MIN HUMIDITY........62-67 PERCENT.
24 HR TREND......14 PERCENT DRIER.
20-FOOT WINDS.......LIGHT WINDS BECOMING NORTHEAST AROUND 5 MPH IN
THE AFTERNOON.
MIXING HEIGHT.......1700-2200 FT AGL.
TRANSPORT WINDS.....NORTHEAST AROUND 5 MPH.
SMOKE DISPERSAL.....80-140 (POOR TO FAIR).
PCPN AMOUNT.........0.03-0.13 IN.
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (75-85 PERCENT) UNTIL 12 AM, THEN
PARTLY CLOUDY (50-60 PERCENT).
MIN TEMPERATURE.....52-57.
24 HR TREND......7 DEGREES COOLER.
MAX HUMIDITY........95-100 PERCENT.
24 HR TREND......UNCHANGED.
20-FOOT WINDS.......NORTHEAST WINDS 5 TO 7 MPH.
MIXING HEIGHT.......1400-1900 FT AGL.
TRANSPORT WINDS.....NORTHEAST AROUND 10 MPH.
SMOKE DISPERSAL.....120-130 (POOR TO FAIR).
PCPN AMOUNT.........NONE.
FRIDAY
SKY/WEATHER.........PARTLY SUNNY (50-60 PERCENT).
MAX TEMPERATURE.....AROUND 75.
24 HR TREND......UNCHANGED.
MIN HUMIDITY........46-51 PERCENT.
24 HR TREND......21 PERCENT DRIER.
20-FOOT WINDS.......EAST WINDS 5 TO 9 MPH.
MIXING HEIGHT.......2000-2500 FT AGL INCREASING TO 4700-5200 FT AGL
IN THE AFTERNOON.
TRANSPORT WINDS.....NORTHEAST AROUND 10 MPH.
SMOKE DISPERSAL.....310-530 (GOOD).
PCPN AMOUNT.........NONE.
FORECAST FOR DAYS 3 THROUGH 7
FRIDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN THE
LOWER 50S. EAST WINDS 5 TO 10 MPH.
SATURDAY
SHOWERS. HIGHS IN THE MID 60S. SOUTHEAST WINDS 5 TO
10 MPH.
SATURDAY NIGHT
CLOUDY WITH A CHANCE OF THUNDERSTORMS. SHOWERS.
LOWS IN THE MID 50S. EAST WINDS 5 TO 10 MPH.
SUNDAY
CHANCE OF THUNDERSTORMS IN THE MORNING. MOSTLY CLOUDY WITH
A CHANCE OF SHOWERS. HIGHS IN THE UPPER 60S. NORTHEAST WINDS 7 TO
12 MPH.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 40S. NORTHEAST
WINDS 6 TO 11 MPH.
MONDAY
MOSTLY CLOUDY. HIGHS IN THE LOWER 60S. EAST WINDS 7 TO
12 MPH.
MONDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 40S.
TUESDAY
PARTLY SUNNY. HIGHS IN THE UPPER 60S.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 50S.
WEDNESDAY
PARTLY SUNNY. HIGHS IN THE LOWER 70S.
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