257
FNUS53 KGRR 161900
FWFGRR
FIRE WEATHER PLANNING FORECAST FOR SOUTHWEST LOWER MICHIGAN
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
300 PM EDT TUE SEP 16 2025
..NO RAIN TIL THE WEEKEND
DISCUSSION
HIGH PRESSURE WILL SLOWLY MOVE EAST WITH MOISTURE ARRIVING BY
LATE SATURDAY WITH A CHANCE OF RAIN. THE RAIN CHANCES WILL
PERSIST INTO NEXT WEEK AS LOW PRESSURE SLOWLY MOVES THROUGH.
MIZ037>039-043>045-170815-
MASON-LAKE-OSCEOLA-OCEANA-NEWAYGO-MECOSTA-
INCLUDING THE CITIES OF LUDINGTON, BALDWIN, REED CITY, HART,
FREMONT, AND BIG RAPIDS
300 PM EDT TUE SEP 16 2025
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR (15-25 PERCENT).
MIN TEMPERATURE.....47-52.
24 HR TREND......UNCHANGED.
MAX HUMIDITY........95-100 PERCENT.
24 HR TREND......UNCHANGED.
20-FOOT WINDS.......LIGHT WINDS.
MIXING HEIGHT.......NEAR LAKE MICHIGAN, 700-1200 FT AGL.
MIXING HEIGHT.......INLAND, 4700-5200 FT AGL DECREASING TO 100-600
FT AGL AFTER MIDNIGHT.
TRANSPORT WINDS.....NORTHEAST AROUND 5 MPH SHIFTING TO THE
SOUTHEAST AFTER MIDNIGHT.
SMOKE DISPERSAL.....40-230 (POOR TO FAIR).
PCPN AMOUNT.........NONE.
WEDNESDAY
SKY/WEATHER.........SUNNY (15-25 PERCENT). PATCHY FOG UNTIL 7 AM.
PATCHY FOG AFTER 8 AM UNTIL 9 AM.
MAX TEMPERATURE.....75-80 NEAR LAKE MICHIGAN AND AROUND 83 INLAND.
24 HR TREND......3 DEGREES COOLER NEAR LAKE MICHIGAN AND 2
DEGREES WARMER INLAND.
MIN HUMIDITY........50-55 PERCENT NEAR LAKE MICHIGAN AND 37-42
PERCENT INLAND.
24 HR TREND......6 PERCENT WETTER NEAR LAKE MICHIGAN AND 4
PERCENT WETTER INLAND.
20-FOOT WINDS.......LIGHT WINDS.
MIXING HEIGHT.......NEAR LAKE MICHIGAN, 1700-2200 FT AGL.
MIXING HEIGHT.......INLAND, 1400-1900 FT AGL INCREASING TO
5000-5500 FT AGL IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTH AROUND 5 MPH SHIFTING TO THE NORTHWEST IN
THE AFTERNOON.
SMOKE DISPERSAL.....90-350 (POOR TO GOOD).
PCPN AMOUNT.........NONE.
WEDNESDAY NIGHT
SKY/WEATHER.........MOSTLY CLEAR (20-30 PERCENT).
MIN TEMPERATURE.....54-59.
24 HR TREND......3 DEGREES WARMER.
MAX HUMIDITY........95-100 PERCENT.
24 HR TREND......UNCHANGED.
20-FOOT WINDS.......LIGHT WINDS.
MIXING HEIGHT.......NEAR LAKE MICHIGAN, 500-1000 FT AGL.
MIXING HEIGHT.......INLAND, 4200-4700 FT AGL DECREASING TO 0-500 FT
AGL AFTER MIDNIGHT.
TRANSPORT WINDS.....NORTHWEST AROUND 5 MPH.
SMOKE DISPERSAL.....30-320 (POOR TO GOOD).
PCPN AMOUNT.........NONE TO 0.01 IN.
THURSDAY
SKY/WEATHER.........MOSTLY SUNNY (25-35 PERCENT).
MAX TEMPERATURE.....81-86.
24 HR TREND......UNCHANGED.
MIN HUMIDITY........58-63 PERCENT NEAR LAKE MICHIGAN AND 43-48
PERCENT INLAND.
24 HR TREND......8 PERCENT WETTER NEAR LAKE MICHIGAN AND 5
PERCENT WETTER INLAND.
20-FOOT WINDS.......LIGHT WINDS BECOMING NORTHWEST AROUND 6 MPH IN
THE AFTERNOON.
MIXING HEIGHT.......NEAR LAKE MICHIGAN, 2200-2700 FT AGL.
MIXING HEIGHT.......INLAND, 1800-2300 FT AGL INCREASING TO
5700-6200 FT AGL IN THE AFTERNOON.
TRANSPORT WINDS.....NORTH 5 TO 10 MPH.
SMOKE DISPERSAL.....140-540 (FAIR TO GOOD).
PCPN AMOUNT.........NONE.
MIZ040-046-170815-
CLARE-ISABELLA-
INCLUDING THE CITIES OF CLARE AND MOUNT PLEASANT
300 PM EDT TUE SEP 16 2025
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR (15-25 PERCENT). PATCHY FOG AFTER
3 AM.
MIN TEMPERATURE.....46-51.
24 HR TREND......5 DEGREES COOLER.
MAX HUMIDITY........95-100 PERCENT.
24 HR TREND......UNCHANGED.
20-FOOT WINDS.......LIGHT WINDS.
MIXING HEIGHT.......4500-5000 FT AGL DECREASING TO 0-500 FT AGL
AFTER MIDNIGHT.
TRANSPORT WINDS.....EAST AROUND 5 MPH.
SMOKE DISPERSAL.....30-260 (POOR TO FAIR).
PCPN AMOUNT.........NONE.
WEDNESDAY
SKY/WEATHER.........SUNNY (10-20 PERCENT). PATCHY FOG UNTIL 9 AM.
MAX TEMPERATURE.....AROUND 86.
24 HR TREND......2 DEGREES WARMER.
MIN HUMIDITY........33-38 PERCENT.
24 HR TREND......UNCHANGED.
20-FOOT WINDS.......LIGHT WINDS.
MIXING HEIGHT.......1400-1900 FT AGL INCREASING TO 5700-6200 FT AGL
IN THE AFTERNOON.
TRANSPORT WINDS.....WEST AROUND 5 MPH SHIFTING TO THE NORTH IN THE
AFTERNOON.
SMOKE DISPERSAL.....80-350 (POOR TO GOOD).
PCPN AMOUNT.........NONE.
WEDNESDAY NIGHT
SKY/WEATHER.........MOSTLY CLEAR (15-25 PERCENT).
MIN TEMPERATURE.....54-59.
24 HR TREND......7 DEGREES WARMER.
MAX HUMIDITY........95-100 PERCENT.
24 HR TREND......UNCHANGED.
20-FOOT WINDS.......LIGHT WINDS.
MIXING HEIGHT.......5300-5800 FT AGL DECREASING TO 0-500 FT AGL
AFTER MIDNIGHT.
TRANSPORT WINDS.....NORTH AROUND 5 MPH.
SMOKE DISPERSAL.....30-320 (POOR TO GOOD).
PCPN AMOUNT.........NONE.
THURSDAY
SKY/WEATHER.........MOSTLY SUNNY (25-35 PERCENT).
MAX TEMPERATURE.....AROUND 84.
24 HR TREND......UNCHANGED.
MIN HUMIDITY........41-46 PERCENT.
24 HR TREND......8 PERCENT WETTER.
20-FOOT WINDS.......LIGHT WINDS BECOMING NORTH AROUND 5 MPH IN THE
AFTERNOON.
MIXING HEIGHT.......2000-2500 FT AGL INCREASING TO 6700-7200 FT AGL
IN THE AFTERNOON.
TRANSPORT WINDS.....NORTHWEST 5 TO 10 MPH.
SMOKE DISPERSAL.....160-630 (FAIR TO EXCELLENT).
PCPN AMOUNT.........NONE.
MIZ050-056-064-071-170815-
MUSKEGON-OTTAWA-ALLEGAN-VAN BUREN-
INCLUDING THE CITIES OF MUSKEGON, GRAND HAVEN, JENISON, HOLLAND,
AND SOUTH HAVEN
300 PM EDT TUE SEP 16 2025
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR (15-25 PERCENT).
MIN TEMPERATURE.....52-57.
24 HR TREND......2 DEGREES COOLER.
MAX HUMIDITY........95-100 PERCENT.
24 HR TREND......UNCHANGED.
20-FOOT WINDS.......LIGHT WINDS.
MIXING HEIGHT.......NEAR LAKE MICHIGAN, 800-1300 FT AGL.
MIXING HEIGHT.......INLAND, 4600-5100 FT AGL DECREASING TO 0-500 FT
AGL AFTER MIDNIGHT.
TRANSPORT WINDS.....NORTH AROUND 5 MPH SHIFTING TO THE EAST AFTER
MIDNIGHT.
SMOKE DISPERSAL.....40-280 (POOR TO FAIR).
PCPN AMOUNT.........NONE.
WEDNESDAY
SKY/WEATHER.........SUNNY (10-20 PERCENT).
MAX TEMPERATURE.....76-81 NEAR LAKE MICHIGAN AND AROUND 84 INLAND.
24 HR TREND......3 DEGREES COOLER NEAR LAKE MICHIGAN AND 1
DEGREE WARMER INLAND.
MIN HUMIDITY........47-52 PERCENT NEAR LAKE MICHIGAN AND 37-42
PERCENT INLAND.
24 HR TREND......5 PERCENT WETTER NEAR LAKE MICHIGAN AND 3
PERCENT WETTER INLAND.
20-FOOT WINDS.......LIGHT WINDS.
MIXING HEIGHT.......NEAR LAKE MICHIGAN, 2800-3300 FT AGL.
MIXING HEIGHT.......INLAND, 1500-2000 FT AGL INCREASING TO
5200-5700 FT AGL IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTHEAST AROUND 5 MPH SHIFTING TO THE NORTH IN
THE AFTERNOON.
SMOKE DISPERSAL.....60-310 (POOR TO GOOD).
PCPN AMOUNT.........NONE.
WEDNESDAY NIGHT
SKY/WEATHER.........MOSTLY CLEAR (10-20 PERCENT).
MIN TEMPERATURE.....54-59.
24 HR TREND......2 DEGREES WARMER.
MAX HUMIDITY........95-100 PERCENT.
24 HR TREND......UNCHANGED.
20-FOOT WINDS.......LIGHT WINDS.
MIXING HEIGHT.......NEAR LAKE MICHIGAN, 500-1000 FT AGL.
MIXING HEIGHT.......INLAND, 4600-5100 FT AGL DECREASING TO 0-500 FT
AGL AFTER MIDNIGHT.
TRANSPORT WINDS.....NORTH AROUND 5 MPH.
SMOKE DISPERSAL.....20-270 (POOR TO FAIR).
PCPN AMOUNT.........NONE.
THURSDAY
SKY/WEATHER.........SUNNY (15-25 PERCENT).
MAX TEMPERATURE.....82-87.
24 HR TREND......UNCHANGED.
MIN HUMIDITY........50-55 PERCENT NEAR LAKE MICHIGAN AND 39-44
PERCENT INLAND.
24 HR TREND......4 PERCENT WETTER NEAR LAKE MICHIGAN AND 1
PERCENT WETTER INLAND.
20-FOOT WINDS.......LIGHT WINDS BECOMING NORTHWEST AROUND 6 MPH IN
THE AFTERNOON.
MIXING HEIGHT.......NEAR LAKE MICHIGAN, 1900-2400 FT AGL.
MIXING HEIGHT.......INLAND, 1800-2300 FT AGL INCREASING TO
6900-7400 FT AGL IN THE AFTERNOON.
TRANSPORT WINDS.....NORTH AROUND 5 MPH SHIFTING TO THE NORTHWEST IN
THE AFTERNOON.
SMOKE DISPERSAL.....90-490 (POOR TO GOOD).
PCPN AMOUNT.........NONE.
MIZ051-052-057>059-170815-
MONTCALM-GRATIOT-KENT-IONIA-CLINTON-
INCLUDING THE CITIES OF GREENVILLE, ALMA, GRAND RAPIDS, IONIA,
AND ST. JOHNS
300 PM EDT TUE SEP 16 2025
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR (15-25 PERCENT). PATCHY FOG AFTER
4 AM.
MIN TEMPERATURE.....48-53.
24 HR TREND......3 DEGREES COOLER.
MAX HUMIDITY........95-100 PERCENT.
24 HR TREND......UNCHANGED.
20-FOOT WINDS.......EAST WINDS 5 TO 6 MPH.
MIXING HEIGHT.......4700-5200 FT AGL DECREASING TO 100-600 FT AGL
AFTER MIDNIGHT.
TRANSPORT WINDS.....EAST AROUND 5 MPH.
SMOKE DISPERSAL.....40-280 (POOR TO FAIR).
PCPN AMOUNT.........NONE.
WEDNESDAY
SKY/WEATHER.........SUNNY (15-25 PERCENT). PATCHY FOG UNTIL 9 AM.
MAX TEMPERATURE.....AROUND 84.
24 HR TREND......2 DEGREES WARMER.
MIN HUMIDITY........36-41 PERCENT.
24 HR TREND......1 PERCENT DRIER.
20-FOOT WINDS.......LIGHT WINDS.
MIXING HEIGHT.......1400-1900 FT AGL INCREASING TO 5500-6000 FT AGL
IN THE AFTERNOON.
TRANSPORT WINDS.....EAST AROUND 5 MPH SHIFTING TO THE NORTH IN THE
AFTERNOON.
SMOKE DISPERSAL.....60-330 (POOR TO GOOD).
PCPN AMOUNT.........NONE.
WEDNESDAY NIGHT
SKY/WEATHER.........MOSTLY CLEAR (5-15 PERCENT).
MIN TEMPERATURE.....55-60.
24 HR TREND......5 DEGREES WARMER.
MAX HUMIDITY........95-100 PERCENT.
24 HR TREND......UNCHANGED.
20-FOOT WINDS.......WEST WINDS UP TO 5 MPH.
MIXING HEIGHT.......5100-5600 FT AGL DECREASING TO 100-600 FT AGL
AFTER MIDNIGHT.
TRANSPORT WINDS.....NORTHWEST AROUND 5 MPH.
SMOKE DISPERSAL.....30-310 (POOR TO GOOD).
PCPN AMOUNT.........NONE.
THURSDAY
SKY/WEATHER.........SUNNY (20-30 PERCENT).
MAX TEMPERATURE.....AROUND 86.
24 HR TREND......1 DEGREE WARMER.
MIN HUMIDITY........41-46 PERCENT.
24 HR TREND......6 PERCENT WETTER.
20-FOOT WINDS.......LIGHT WINDS BECOMING NORTHWEST AROUND 5 MPH IN
THE AFTERNOON.
MIXING HEIGHT.......2000-2500 FT AGL INCREASING TO 6800-7300 FT AGL
IN THE AFTERNOON.
TRANSPORT WINDS.....NORTHWEST AROUND 5 MPH.
SMOKE DISPERSAL.....130-590 (FAIR TO GOOD).
PCPN AMOUNT.........NONE.
MIZ065>067-072>074-170815-
BARRY-EATON-INGHAM-KALAMAZOO-CALHOUN-JACKSON-
INCLUDING THE CITIES OF HASTINGS, CHARLOTTE, LANSING, KALAMAZOO,
BATTLE CREEK, AND JACKSON
300 PM EDT TUE SEP 16 2025
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR (15-25 PERCENT). PATCHY FOG AFTER
3 AM.
MIN TEMPERATURE.....49-54.
24 HR TREND......1 DEGREE COOLER.
MAX HUMIDITY........95-100 PERCENT.
24 HR TREND......UNCHANGED.
20-FOOT WINDS.......EAST WINDS UP TO 5 MPH.
MIXING HEIGHT.......5000-5500 FT AGL DECREASING TO 100-600 FT AGL
AFTER MIDNIGHT.
TRANSPORT WINDS.....EAST AROUND 5 MPH.
SMOKE DISPERSAL.....40-300 (POOR TO GOOD).
PCPN AMOUNT.........NONE.
WEDNESDAY
SKY/WEATHER.........SUNNY (15-25 PERCENT). PATCHY FOG UNTIL 9 AM.
MAX TEMPERATURE.....AROUND 84.
24 HR TREND......1 DEGREE WARMER.
MIN HUMIDITY........34-39 PERCENT.
24 HR TREND......UNCHANGED.
20-FOOT WINDS.......LIGHT WINDS.
MIXING HEIGHT.......2100-2600 FT AGL INCREASING TO 5500-6000 FT AGL
IN THE AFTERNOON.
TRANSPORT WINDS.....EAST AROUND 5 MPH SHIFTING TO THE NORTH IN THE
AFTERNOON.
SMOKE DISPERSAL.....80-320 (POOR TO GOOD).
PCPN AMOUNT.........NONE.
WEDNESDAY NIGHT
SKY/WEATHER.........MOSTLY CLEAR (5-15 PERCENT).
MIN TEMPERATURE.....52-57.
24 HR TREND......2 DEGREES WARMER.
MAX HUMIDITY........95-100 PERCENT.
24 HR TREND......UNCHANGED.
20-FOOT WINDS.......LIGHT WINDS.
MIXING HEIGHT.......5400-5900 FT AGL DECREASING TO 100-600 FT AGL
AFTER MIDNIGHT.
TRANSPORT WINDS.....NORTHEAST AROUND 5 MPH SHIFTING TO THE WEST
AFTER MIDNIGHT.
SMOKE DISPERSAL.....20-300 (POOR TO GOOD).
PCPN AMOUNT.........NONE.
THURSDAY
SKY/WEATHER.........SUNNY (15-25 PERCENT).
MAX TEMPERATURE.....AROUND 87.
24 HR TREND......2 DEGREES WARMER.
MIN HUMIDITY........36-41 PERCENT.
24 HR TREND......5 PERCENT WETTER.
20-FOOT WINDS.......LIGHT WINDS BECOMING NORTHWEST AROUND 5 MPH IN
THE AFTERNOON.
MIXING HEIGHT.......2200-2700 FT AGL INCREASING TO 7500-8000 FT AGL
IN THE AFTERNOON.
TRANSPORT WINDS.....NORTHWEST AROUND 5 MPH.
SMOKE DISPERSAL.....140-570 (FAIR TO GOOD).
PCPN AMOUNT.........NONE.
FORECAST FOR DAYS 3 THROUGH 7
THURSDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 50S. NORTHEAST WINDS
5 TO 9 MPH.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. EAST WINDS 5 TO
10 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 50S. EAST WINDS
5 TO 10 MPH.
SATURDAY
PARTLY SUNNY. HIGHS IN THE UPPER 70S. SOUTHEAST WINDS
5 TO 10 MPH.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. SOUTHEAST
WINDS 5 TO 9 MPH.
SUNDAY
PARTLY SUNNY. CHANCE OF SHOWERS. HIGHS IN THE LOWER 80S.
SOUTH WINDS 5 TO 10 MPH.
SUNDAY NIGHT
PARTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN THE
LOWER 60S.
MONDAY
PARTLY SUNNY. CHANCE OF SHOWERS IN THE AFTERNOON. HIGHS IN
THE UPPER 70S.
MONDAY NIGHT
PARTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN THE
UPPER 50S.
TUESDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE MID
70S.
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