820
FNUS53 KGRR 150725
FWFGRR
FIRE WEATHER PLANNING FORECAST FOR SOUTHWEST LOWER MICHIGAN
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
325 AM EDT MON SEP 15 2025
..DRY AND UNSEASONABLY HOT THIS WEEK
DISCUSSION
DRY WEATHER AND SEASONABLY HOT TEMPERATURES ARE EXPECTED WITH
LIGHT AND GENERALLY EASTERLY WINDS EXPECTED THROUGH THURSDAY.
LOW CHANCES FOR RAIN SHOWERS AND POSSIBLY THUNDERSTORMS RETURN
BY THIS WEEKEND AND CONTINUE INTO 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
325 AM EDT MON SEP 15 2025
TODAY
SKY/WEATHER.........SUNNY (10-20 PERCENT). PATCHY FOG AFTER 7 AM
UNTIL 9 AM.
MAX TEMPERATURE.....80-85.
24 HR TREND......2 DEGREES COOLER.
MIN HUMIDITY........47-52 PERCENT NEAR LAKE MICHIGAN AND 38-43
PERCENT INLAND.
24 HR TREND......5 PERCENT WETTER NEAR LAKE MICHIGAN AND 2
PERCENT WETTER INLAND.
20-FOOT WINDS.......SOUTHEAST WINDS 5 TO 8 MPH.
MIXING HEIGHT.......NEAR LAKE MICHIGAN, 800-1300 FT AGL INCREASING
TO 4500-5000 FT AGL IN THE AFTERNOON.
MIXING HEIGHT.......INLAND, 1000-1500 FT AGL INCREASING TO
5900-6400 FT AGL IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTHEAST 5 TO 10 MPH.
SMOKE DISPERSAL.....120-460 (POOR TO GOOD).
PCPN AMOUNT.........NONE.
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR (15-25 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.......NEAR LAKE MICHIGAN, 1300-1800 FT AGL.
MIXING HEIGHT.......INLAND, 5500-6000 FT AGL DECREASING TO 100-600
FT AGL AFTER MIDNIGHT.
TRANSPORT WINDS.....EAST AROUND 10 MPH.
SMOKE DISPERSAL.....60-370 (POOR TO GOOD).
PCPN AMOUNT.........NONE.
TUESDAY
SKY/WEATHER.........SUNNY (20-30 PERCENT). PATCHY FOG UNTIL 8 AM.
MAX TEMPERATURE.....80-85.
24 HR TREND......2 DEGREES WARMER.
MIN HUMIDITY........46-51 PERCENT NEAR LAKE MICHIGAN AND 34-39
PERCENT INLAND.
24 HR TREND......5 PERCENT WETTER NEAR LAKE MICHIGAN AND 5
PERCENT DRIER INLAND.
20-FOOT WINDS.......SOUTHEAST WINDS 5 TO 6 MPH.
MIXING HEIGHT.......NEAR LAKE MICHIGAN, 3600-4100 FT AGL IN THE
AFTERNOON.
MIXING HEIGHT.......1000-1500 FT AGL IN THE MORNING.
MIXING HEIGHT.......INLAND, 6000-6500 FT AGL IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTHEAST AROUND 5 MPH.
SMOKE DISPERSAL.....90-390 (POOR TO GOOD).
PCPN AMOUNT.........NONE.
MIZ040-046-152015-
CLARE-ISABELLA-
INCLUDING THE CITIES OF CLARE AND MOUNT PLEASANT
325 AM EDT MON SEP 15 2025
TODAY
SKY/WEATHER.........MOSTLY SUNNY (25-35 PERCENT). PATCHY FOG UNTIL
10 AM.
MAX TEMPERATURE.....AROUND 82.
24 HR TREND......UNCHANGED.
MIN HUMIDITY........39-44 PERCENT.
24 HR TREND......7 PERCENT WETTER.
20-FOOT WINDS.......LIGHT WINDS BECOMING EAST AROUND 5 MPH IN THE
AFTERNOON.
MIXING HEIGHT.......1000-1500 FT AGL INCREASING TO 5400-5900 FT AGL
IN THE AFTERNOON.
TRANSPORT WINDS.....EAST AROUND 5 MPH.
SMOKE DISPERSAL.....100-390 (POOR TO GOOD).
PCPN AMOUNT.........NONE.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (30-40 PERCENT). PATCHY FOG AFTER
2 AM.
MIN TEMPERATURE.....48-53.
24 HR TREND......2 DEGREES COOLER.
MAX HUMIDITY........100 PERCENT.
24 HR TREND......UNCHANGED.
20-FOOT WINDS.......EAST WINDS AROUND 5 MPH IN THE EVENING BECOMING
LIGHT.
MIXING HEIGHT.......5100-5600 FT AGL DECREASING TO 0-500 FT AGL
AFTER MIDNIGHT.
TRANSPORT WINDS.....EAST 5 TO 10 MPH.
SMOKE DISPERSAL.....50-370 (POOR TO GOOD).
PCPN AMOUNT.........NONE.
TUESDAY
SKY/WEATHER.........MOSTLY SUNNY (35-45 PERCENT). AREAS OF FOG
UNTIL 8 AM.
MAX TEMPERATURE.....AROUND 83.
24 HR TREND......1 DEGREE WARMER.
MIN HUMIDITY........35-40 PERCENT.
24 HR TREND......5 PERCENT DRIER.
20-FOOT WINDS.......EAST WINDS UP TO 5 MPH.
MIXING HEIGHT.......700-1200 FT AGL INCREASING TO 5400-5900 FT AGL
IN THE AFTERNOON.
TRANSPORT WINDS.....EAST AROUND 5 MPH.
SMOKE DISPERSAL.....50-320 (POOR TO GOOD).
PCPN AMOUNT.........NONE.
MIZ050-056-064-071-152015-
MUSKEGON-OTTAWA-ALLEGAN-VAN BUREN-
INCLUDING THE CITIES OF MUSKEGON, GRAND HAVEN, JENISON, HOLLAND,
AND SOUTH HAVEN
325 AM EDT MON SEP 15 2025
TODAY
SKY/WEATHER.........SUNNY (0-10 PERCENT).
MAX TEMPERATURE.....81-86.
24 HR TREND......UNCHANGED.
MIN HUMIDITY........37-42 PERCENT.
24 HR TREND......1 PERCENT DRIER.
20-FOOT WINDS.......EAST WINDS 5 TO 8 MPH.
MIXING HEIGHT.......1500-2000 FT AGL INCREASING TO 5700-6200 FT AGL
IN THE AFTERNOON.
TRANSPORT WINDS.....EAST AROUND 10 MPH.
SMOKE DISPERSAL.....250-580 (FAIR TO GOOD).
PCPN AMOUNT.........NONE.
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR (10-20 PERCENT).
MIN TEMPERATURE.....53-58.
24 HR TREND......UNCHANGED.
MAX HUMIDITY........95-100 PERCENT.
24 HR TREND......UNCHANGED.
20-FOOT WINDS.......EAST WINDS 5 TO 6 MPH.
MIXING HEIGHT.......NEAR LAKE MICHIGAN, 2900-3400 FT AGL IN THE
EVENING.
MIXING HEIGHT.......0-500 FT AGL AFTER MIDNIGHT.
MIXING HEIGHT.......INLAND, 5400-5900 FT AGL IN THE EVENING.
TRANSPORT WINDS.....EAST AROUND 10 MPH.
SMOKE DISPERSAL.....60-470 (POOR TO GOOD).
PCPN AMOUNT.........NONE.
TUESDAY
SKY/WEATHER.........SUNNY (15-25 PERCENT).
MAX TEMPERATURE.....81-86.
24 HR TREND......UNCHANGED.
MIN HUMIDITY........36-41 PERCENT.
24 HR TREND......UNCHANGED.
20-FOOT WINDS.......LIGHT WINDS BECOMING EAST AROUND 5 MPH IN THE
AFTERNOON.
MIXING HEIGHT.......NEAR LAKE MICHIGAN, 1000-1500 FT AGL INCREASING
TO 4300-4800 FT AGL IN THE AFTERNOON.
MIXING HEIGHT.......INLAND, 1500-2000 FT AGL INCREASING TO
6400-6900 FT AGL IN THE AFTERNOON.
TRANSPORT WINDS.....EAST AROUND 10 MPH.
SMOKE DISPERSAL.....180-520 (FAIR TO GOOD).
PCPN AMOUNT.........NONE.
MIZ051-052-057>059-152015-
MONTCALM-GRATIOT-KENT-IONIA-CLINTON-
INCLUDING THE CITIES OF GREENVILLE, ALMA, GRAND RAPIDS, IONIA,
AND ST. JOHNS
325 AM EDT MON SEP 15 2025
TODAY
SKY/WEATHER.........SUNNY (15-25 PERCENT). PATCHY FOG AFTER 7 AM
UNTIL 10 AM.
MAX TEMPERATURE.....81-86.
24 HR TREND......1 DEGREE WARMER.
MIN HUMIDITY........40-45 PERCENT.
24 HR TREND......UNCHANGED.
20-FOOT WINDS.......LIGHT WINDS BECOMING EAST AROUND 7 MPH IN THE
AFTERNOON.
MIXING HEIGHT.......1100-1600 FT AGL INCREASING TO 5600-6100 FT AGL
IN THE AFTERNOON.
TRANSPORT WINDS.....EAST AROUND 10 MPH.
SMOKE DISPERSAL.....150-460 (FAIR TO GOOD).
PCPN AMOUNT.........NONE.
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR (15-25 PERCENT). PATCHY FOG AFTER
5 AM.
MIN TEMPERATURE.....50-55.
24 HR TREND......2 DEGREES COOLER.
MAX HUMIDITY........95-100 PERCENT.
24 HR TREND......UNCHANGED.
20-FOOT WINDS.......EAST WINDS AROUND 6 MPH IN THE EVENING BECOMING
LIGHT.
MIXING HEIGHT.......5200-5700 FT AGL DECREASING TO 100-600 FT AGL
AFTER MIDNIGHT.
TRANSPORT WINDS.....EAST AROUND 10 MPH.
SMOKE DISPERSAL.....60-430 (POOR TO GOOD).
PCPN AMOUNT.........NONE.
TUESDAY
SKY/WEATHER.........MOSTLY SUNNY (30-40 PERCENT). PATCHY FOG UNTIL
8 AM.
MAX TEMPERATURE.....81-86.
24 HR TREND......UNCHANGED.
MIN HUMIDITY........37-42 PERCENT.
24 HR TREND......3 PERCENT DRIER.
20-FOOT WINDS.......LIGHT WINDS BECOMING EAST AROUND 6 MPH IN THE
AFTERNOON.
MIXING HEIGHT.......900-1400 FT AGL INCREASING TO 5800-6300 FT AGL
IN THE AFTERNOON.
TRANSPORT WINDS.....EAST AROUND 5 MPH.
SMOKE DISPERSAL.....100-460 (POOR TO GOOD).
PCPN AMOUNT.........NONE.
MIZ065>067-072>074-152015-
BARRY-EATON-INGHAM-KALAMAZOO-CALHOUN-JACKSON-
INCLUDING THE CITIES OF HASTINGS, CHARLOTTE, LANSING, KALAMAZOO,
BATTLE CREEK, AND JACKSON
325 AM EDT MON SEP 15 2025
TODAY
SKY/WEATHER.........SUNNY (5-15 PERCENT). PATCHY FOG AFTER 7 AM
UNTIL 8 AM.
MAX TEMPERATURE.....81-86.
24 HR TREND......1 DEGREE WARMER.
MIN HUMIDITY........37-42 PERCENT.
24 HR TREND......5 PERCENT WETTER.
20-FOOT WINDS.......LIGHT WINDS BECOMING EAST AROUND 6 MPH IN THE
AFTERNOON.
MIXING HEIGHT.......2000-2500 FT AGL INCREASING TO 6100-6600 FT AGL
IN THE AFTERNOON.
TRANSPORT WINDS.....EAST AROUND 10 MPH.
SMOKE DISPERSAL.....260-590 (FAIR TO GOOD).
PCPN AMOUNT.........NONE.
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR (10-20 PERCENT).
MIN TEMPERATURE.....50-55.
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.......5900-6400 FT AGL DECREASING TO 100-600 FT AGL
AFTER MIDNIGHT.
TRANSPORT WINDS.....EAST AROUND 10 MPH.
SMOKE DISPERSAL.....50-590 (POOR TO GOOD).
PCPN AMOUNT.........NONE.
TUESDAY
SKY/WEATHER.........SUNNY (15-25 PERCENT). PATCHY FOG UNTIL 8 AM.
MAX TEMPERATURE.....AROUND 84.
24 HR TREND......UNCHANGED.
MIN HUMIDITY........38-43 PERCENT.
24 HR TREND......3 PERCENT DRIER.
20-FOOT WINDS.......LIGHT WINDS BECOMING EAST AROUND 6 MPH IN THE
AFTERNOON.
MIXING HEIGHT.......1800-2300 FT AGL INCREASING TO 6400-6900 FT AGL
IN THE AFTERNOON.
TRANSPORT WINDS.....EAST AROUND 10 MPH.
SMOKE DISPERSAL.....230-490 (FAIR TO GOOD).
PCPN AMOUNT.........NONE.
FORECAST FOR DAYS 3 THROUGH 7
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 50S. EAST WINDS
5 TO 6 MPH IN THE EVENING BECOMING LIGHT.
WEDNESDAY
SUNNY. HIGHS IN THE MID 80S. LIGHT WINDS BECOMING SOUTH
5 TO 6 MPH IN THE AFTERNOON.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 50S. NORTHWEST
WINDS UP TO 5 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 8 MPH.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. NORTHEAST WINDS 5 TO
10 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 50S.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 50S.
SUNDAY
PARTLY SUNNY. CHANCE OF SHOWERS. HIGHS IN THE UPPER 70S.
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