956  
FNUS53 KGRR 071944  
FWFGRR  
 
FIRE WEATHER PLANNING FORECAST FOR SOUTHWEST LOWER MICHIGAN  
NATIONAL WEATHER SERVICE GRAND RAPIDS MI  
344 PM EDT TUE OCT 7 2025  
   
..COOLER AND DRY CONDITIONS  
 
   
DISCUSSION  
 
AS THE FRONT AND RAIN EXIT THE AREA TODAY A COLDER AIR MASS WILL MOVE  
IN. LOWS TONIGHT WILL BE IN THE 30S TO LOW 40S WITH AREAS ALONG AND  
NORTH OF M-20 HAVING THE BEST POTENTIAL FOR FROST. WEDNESDAY NIGHT  
WILL BE EVEN COLDER WITH MOST OF THE AREA IN THE LOW TO MID 30S AND  
SPOTS NORTH OF M-20 DROPPING INTO THE MID TO UPPER 20S. LOWS SLOWLY  
IMPROVE INTO THE 40S FOR THE WEEKEND ALONG WITH HIGHS AROUND 60  
TOMORROW WARMING INTO THE UPPER 60S TO LOW 70S.  
 
THIS WARM UP INTO THE WEEKEND IS DUE TO LIGHT NORTHERLY WINDS  
BECOMING MORE SOUTHERLY AHEAD OF OUR NEXT CHANCE FOR RAIN MONDAY INTO  
TUESDAY. MINIMUM RELATIVE HUMIDITY VALUES WILL LARGELY BE IN THE 30S  
AND 40S. CENTRAL LOWER HAS A 20 PERCENT CHANCE FOR VALUES TO DROP  
INTO THE MID TO UPPER 20S WEDNESDAY AFTERNOON.  
 
MIZ037>039-043>045-080815-  
MASON-LAKE-OSCEOLA-OCEANA-NEWAYGO-MECOSTA-  
INCLUDING THE CITIES OF LUDINGTON, BALDWIN, REED CITY, HART,  
FREMONT, AND BIG RAPIDS  
344 PM EDT TUE OCT 7 2025  
   
TONIGHT  
 
SKY/WEATHER.........MOSTLY CLEAR (10-20 PERCENT).  
MIN TEMPERATURE.....31-36.  
24 HR TREND......14 DEGREES COOLER.  
MAX HUMIDITY........95-100 PERCENT.  
24 HR TREND......UNCHANGED.  
20-FOOT WINDS.......NORTH WINDS 5 TO 8 MPH.  
MIXING HEIGHT.......NEAR LAKE MICHIGAN, 2800-3300 FT AGL.  
MIXING HEIGHT.......INLAND, 3500-4000 FT AGL DECREASING TO 200-700  
FT AGL AFTER MIDNIGHT.  
TRANSPORT WINDS.....NORTH AROUND 10 MPH.  
SMOKE DISPERSAL.....100-570 (POOR TO GOOD).  
PCPN AMOUNT.........NONE.  
   
WEDNESDAY  
 
SKY/WEATHER.........SUNNY (0-10 PERCENT). AREAS OF FROST UNTIL 9  
AM.  
MAX TEMPERATURE.....58-63.  
24 HR TREND......6 DEGREES COOLER.  
MIN HUMIDITY........36-41 PERCENT.  
24 HR TREND......1 PERCENT DRIER.  
20-FOOT WINDS.......LIGHT WINDS BECOMING NORTH AROUND 7 MPH IN THE  
AFTERNOON.  
MIXING HEIGHT.......5000-5500 FT AGL.  
TRANSPORT WINDS.....NORTH AROUND 10 MPH.  
SMOKE DISPERSAL.....650-660 (EXCELLENT).  
PCPN AMOUNT.........NONE.  
   
WEDNESDAY NIGHT  
 
SKY/WEATHER.........CLEAR (0-10 PERCENT). AREAS OF FROST AFTER 12  
AM UNTIL 5 AM, THEN WIDESPREAD FROST.  
MIN TEMPERATURE.....24-29.  
24 HR TREND......7 DEGREES COOLER.  
MAX HUMIDITY........95-100 PERCENT.  
24 HR TREND......UNCHANGED.  
20-FOOT WINDS.......NORTHEAST WINDS AROUND 5 MPH IN THE EVENING  
BECOMING LIGHT.  
MIXING HEIGHT.......4300-4800 FT AGL DECREASING TO 300-800 FT AGL  
AFTER MIDNIGHT.  
TRANSPORT WINDS.....NORTHEAST AROUND 10 MPH SHIFTING TO THE EAST  
AFTER MIDNIGHT.  
SMOKE DISPERSAL.....50-480 (POOR TO GOOD).  
PCPN AMOUNT.........NONE.  
   
THURSDAY  
 
SKY/WEATHER.........SUNNY (0-10 PERCENT). WIDESPREAD FROST UNTIL 9  
AM, THEN AREAS OF FROST UNTIL 10 AM.  
MAX TEMPERATURE.....60-65.  
24 HR TREND......2 DEGREES WARMER.  
MIN HUMIDITY........32-37 PERCENT.  
24 HR TREND......5 PERCENT DRIER.  
20-FOOT WINDS.......LIGHT WINDS BECOMING SOUTH AROUND 6 MPH IN THE  
AFTERNOON.  
MIXING HEIGHT.......2200-2700 FT AGL INCREASING TO 4500-5000 FT AGL  
IN THE AFTERNOON.  
TRANSPORT WINDS.....SOUTHEAST 5 TO 10 MPH.  
SMOKE DISPERSAL.....190-360 (FAIR TO GOOD).  
PCPN AMOUNT.........NONE.  
 
 
 
MIZ040-046-080815-  
CLARE-ISABELLA-  
INCLUDING THE CITIES OF CLARE AND MOUNT PLEASANT  
344 PM EDT TUE OCT 7 2025  
   
TONIGHT  
 
SKY/WEATHER.........MOSTLY CLEAR (5-15 PERCENT). AREAS OF FROST  
AFTER 5 AM.  
MIN TEMPERATURE.....29-34.  
24 HR TREND......14 DEGREES COOLER.  
MAX HUMIDITY........91-96 PERCENT.  
24 HR TREND......UNCHANGED.  
20-FOOT WINDS.......NORTH WINDS 5 TO 8 MPH.  
MIXING HEIGHT.......3800-4300 FT AGL DECREASING TO 200-700 FT AGL  
AFTER MIDNIGHT.  
TRANSPORT WINDS.....NORTH AROUND 10 MPH.  
SMOKE DISPERSAL.....80-610 (POOR TO EXCELLENT).  
PCPN AMOUNT.........NONE.  
   
WEDNESDAY  
 
SKY/WEATHER.........SUNNY (0-10 PERCENT). AREAS OF FROST UNTIL 9  
AM.  
MAX TEMPERATURE.....AROUND 59.  
24 HR TREND......7 DEGREES COOLER.  
MIN HUMIDITY........33-38 PERCENT.  
24 HR TREND......13 PERCENT DRIER.  
20-FOOT WINDS.......LIGHT WINDS BECOMING NORTH AROUND 7 MPH IN THE  
AFTERNOON.  
MIXING HEIGHT.......5000-5500 FT AGL.  
TRANSPORT WINDS.....NORTH 10 TO 15 MPH.  
SMOKE DISPERSAL.....670-680 (EXCELLENT).  
PCPN AMOUNT.........NONE.  
   
WEDNESDAY NIGHT  
 
SKY/WEATHER.........CLEAR (0-10 PERCENT). AREAS OF FROST AFTER 12  
AM UNTIL 4 AM, THEN WIDESPREAD FROST.  
MIN TEMPERATURE.....22-27.  
24 HR TREND......7 DEGREES COOLER.  
MAX HUMIDITY........95-100 PERCENT.  
24 HR TREND......UNCHANGED.  
20-FOOT WINDS.......NORTHEAST WINDS UP TO 5 MPH.  
MIXING HEIGHT.......4400-4900 FT AGL DECREASING TO 0-500 FT AGL  
AFTER MIDNIGHT.  
TRANSPORT WINDS.....NORTHEAST 5 TO 10 MPH.  
SMOKE DISPERSAL.....40-490 (POOR TO GOOD).  
PCPN AMOUNT.........NONE.  
   
THURSDAY  
 
SKY/WEATHER.........SUNNY (0-10 PERCENT). WIDESPREAD FROST UNTIL 9  
AM, THEN AREAS OF FROST UNTIL 10 AM.  
MAX TEMPERATURE.....AROUND 61.  
24 HR TREND......1 DEGREE WARMER.  
MIN HUMIDITY........32-37 PERCENT.  
24 HR TREND......2 PERCENT WETTER.  
20-FOOT WINDS.......LIGHT WINDS.  
MIXING HEIGHT.......2300-2800 FT AGL INCREASING TO 4400-4900 FT AGL  
IN THE AFTERNOON.  
TRANSPORT WINDS.....EAST AROUND 5 MPH SHIFTING TO THE SOUTHEAST IN  
THE AFTERNOON.  
SMOKE DISPERSAL.....160-330 (FAIR TO GOOD).  
PCPN AMOUNT.........NONE.  
 
 
 
MIZ050-056-064-071-080815-  
MUSKEGON-OTTAWA-ALLEGAN-VAN BUREN-  
INCLUDING THE CITIES OF MUSKEGON, GRAND HAVEN, JENISON, HOLLAND,  
AND SOUTH HAVEN  
344 PM EDT TUE OCT 7 2025  
   
TONIGHT  
 
SKY/WEATHER.........MOSTLY CLEAR (5-15 PERCENT).  
MIN TEMPERATURE.....39-44.  
24 HR TREND......19 DEGREES COOLER.  
MAX HUMIDITY........88-93 PERCENT.  
24 HR TREND......UNCHANGED.  
20-FOOT WINDS.......NORTH WINDS AROUND 6 MPH IN THE EVENING  
BECOMING LIGHT.  
MIXING HEIGHT.......3100-3600 FT AGL DECREASING TO 800-1300 FT AGL  
AFTER MIDNIGHT.  
TRANSPORT WINDS.....NORTH AROUND 10 MPH.  
SMOKE DISPERSAL.....80-460 (POOR TO GOOD).  
PCPN AMOUNT.........NONE.  
   
WEDNESDAY  
 
SKY/WEATHER.........SUNNY (0-10 PERCENT).  
MAX TEMPERATURE.....AROUND 62.  
24 HR TREND......5 DEGREES COOLER.  
MIN HUMIDITY........38-43 PERCENT.  
24 HR TREND......16 PERCENT DRIER.  
20-FOOT WINDS.......NORTHEAST WINDS 5 TO 9 MPH.  
MIXING HEIGHT.......5200-5700 FT AGL.  
TRANSPORT WINDS.....NORTH AROUND 10 MPH.  
SMOKE DISPERSAL.....560-620 (GOOD TO EXCELLENT).  
PCPN AMOUNT.........NONE.  
   
WEDNESDAY NIGHT  
 
SKY/WEATHER.........CLEAR (0-10 PERCENT). AREAS OF FROST AFTER 4  
AM.  
MIN TEMPERATURE.....31-36.  
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.......4200-4700 FT AGL DECREASING TO 200-700 FT AGL  
AFTER MIDNIGHT.  
TRANSPORT WINDS.....EAST AROUND 10 MPH.  
SMOKE DISPERSAL.....60-470 (POOR TO GOOD).  
PCPN AMOUNT.........NONE.  
   
THURSDAY  
 
SKY/WEATHER.........SUNNY (0-10 PERCENT). AREAS OF FROST UNTIL 9  
AM.  
MAX TEMPERATURE.....60-65.  
24 HR TREND......1 DEGREE WARMER.  
MIN HUMIDITY........34-39 PERCENT.  
24 HR TREND......5 PERCENT DRIER.  
20-FOOT WINDS.......LIGHT WINDS BECOMING SOUTHEAST AROUND 6 MPH IN  
THE AFTERNOON.  
MIXING HEIGHT.......1900-2400 FT AGL INCREASING TO 4400-4900 FT AGL  
IN THE AFTERNOON.  
TRANSPORT WINDS.....SOUTHEAST AROUND 10 MPH.  
SMOKE DISPERSAL.....260-440 (FAIR TO GOOD).  
PCPN AMOUNT.........NONE.  
 
 
 
MIZ051-052-057>059-080815-  
MONTCALM-GRATIOT-KENT-IONIA-CLINTON-  
INCLUDING THE CITIES OF GREENVILLE, ALMA, GRAND RAPIDS, IONIA,  
AND ST. JOHNS  
344 PM EDT TUE OCT 7 2025  
   
TONIGHT  
 
SKY/WEATHER.........MOSTLY CLEAR (5-15 PERCENT).  
MIN TEMPERATURE.....37-42.  
24 HR TREND......15 DEGREES COOLER.  
MAX HUMIDITY........91-96 PERCENT.  
24 HR TREND......UNCHANGED.  
20-FOOT WINDS.......NORTH WINDS 5 TO 8 MPH.  
MIXING HEIGHT.......3100-3600 FT AGL DECREASING TO 200-700 FT AGL  
AFTER MIDNIGHT.  
TRANSPORT WINDS.....NORTH AROUND 10 MPH.  
SMOKE DISPERSAL.....70-380 (POOR TO GOOD).  
PCPN AMOUNT.........NONE.  
   
WEDNESDAY  
 
SKY/WEATHER.........SUNNY (0-10 PERCENT).  
MAX TEMPERATURE.....AROUND 61.  
24 HR TREND......7 DEGREES COOLER.  
MIN HUMIDITY........37-42 PERCENT.  
24 HR TREND......12 PERCENT DRIER.  
20-FOOT WINDS.......NORTH WINDS 5 TO 10 MPH.  
MIXING HEIGHT.......5000-5500 FT AGL.  
TRANSPORT WINDS.....NORTH 10 TO 15 MPH.  
SMOKE DISPERSAL.....620-680 (EXCELLENT).  
PCPN AMOUNT.........NONE.  
   
WEDNESDAY NIGHT  
 
SKY/WEATHER.........CLEAR (0-10 PERCENT). AREAS OF FROST AFTER 2  
AM.  
MIN TEMPERATURE.....30-35.  
24 HR TREND......8 DEGREES COOLER.  
MAX HUMIDITY........95-100 PERCENT.  
24 HR TREND......UNCHANGED.  
20-FOOT WINDS.......NORTHEAST WINDS AROUND 5 MPH IN THE EVENING  
BECOMING LIGHT.  
MIXING HEIGHT.......4300-4800 FT AGL DECREASING TO 100-600 FT AGL  
AFTER MIDNIGHT.  
TRANSPORT WINDS.....NORTHEAST AROUND 10 MPH.  
SMOKE DISPERSAL.....40-450 (POOR TO GOOD).  
PCPN AMOUNT.........NONE.  
   
THURSDAY  
 
SKY/WEATHER.........SUNNY (0-10 PERCENT). AREAS OF FROST UNTIL 7  
AM, THEN WIDESPREAD FROST UNTIL 9 AM, THEN  
PATCHY FROST UNTIL 10 AM.  
MAX TEMPERATURE.....AROUND 62.  
24 HR TREND......2 DEGREES WARMER.  
MIN HUMIDITY........36-41 PERCENT.  
24 HR TREND......1 PERCENT WETTER.  
20-FOOT WINDS.......LIGHT WINDS BECOMING SOUTHEAST AROUND 6 MPH IN  
THE AFTERNOON.  
MIXING HEIGHT.......4200-4700 FT AGL.  
TRANSPORT WINDS.....EAST 5 TO 10 MPH.  
SMOKE DISPERSAL.....250-370 (FAIR TO GOOD).  
PCPN AMOUNT.........NONE.  
 
 
 
MIZ065>067-072>074-080815-  
BARRY-EATON-INGHAM-KALAMAZOO-CALHOUN-JACKSON-  
INCLUDING THE CITIES OF HASTINGS, CHARLOTTE, LANSING, KALAMAZOO,  
BATTLE CREEK, AND JACKSON  
344 PM EDT TUE OCT 7 2025  
   
TONIGHT  
 
SKY/WEATHER.........PARTLY CLOUDY (20-30 PERCENT) UNTIL 12 AM, THEN  
MOSTLY CLEAR (5-15 PERCENT).  
MIN TEMPERATURE.....37-42.  
24 HR TREND......23 DEGREES COOLER.  
MAX HUMIDITY........95-100 PERCENT.  
24 HR TREND......UNCHANGED.  
20-FOOT WINDS.......NORTH WINDS AROUND 5 MPH IN THE EVENING  
BECOMING LIGHT.  
MIXING HEIGHT.......1800-2300 FT AGL.  
TRANSPORT WINDS.....NORTH AROUND 10 MPH.  
SMOKE DISPERSAL.....60-230 (POOR TO FAIR).  
PCPN AMOUNT.........NONE TO 0.02 IN.  
   
WEDNESDAY  
 
SKY/WEATHER.........SUNNY (5-15 PERCENT).  
MAX TEMPERATURE.....AROUND 61.  
24 HR TREND......4 DEGREES COOLER.  
MIN HUMIDITY........37-42 PERCENT.  
24 HR TREND......38 PERCENT DRIER.  
20-FOOT WINDS.......NORTH WINDS 5 TO 10 MPH.  
MIXING HEIGHT.......4500-5000 FT AGL.  
TRANSPORT WINDS.....NORTH AROUND 15 MPH.  
SMOKE DISPERSAL.....470-700 (GOOD TO EXCELLENT).  
PCPN AMOUNT.........NONE.  
   
WEDNESDAY NIGHT  
 
SKY/WEATHER.........CLEAR (0-10 PERCENT). AREAS OF FROST AFTER 2  
AM.  
MIN TEMPERATURE.....29-34.  
24 HR TREND......9 DEGREES COOLER.  
MAX HUMIDITY........95-100 PERCENT.  
24 HR TREND......UNCHANGED.  
20-FOOT WINDS.......NORTHEAST WINDS 5 TO 6 MPH.  
MIXING HEIGHT.......4000-4500 FT AGL DECREASING TO 0-500 FT AGL  
AFTER MIDNIGHT.  
TRANSPORT WINDS.....NORTHEAST AROUND 10 MPH.  
SMOKE DISPERSAL.....40-570 (POOR TO GOOD).  
PCPN AMOUNT.........NONE.  
   
THURSDAY  
 
SKY/WEATHER.........SUNNY (0-10 PERCENT). AREAS OF FROST UNTIL 7  
AM, THEN WIDESPREAD FROST UNTIL 9 AM, THEN  
PATCHY FROST UNTIL 10 AM.  
MAX TEMPERATURE.....AROUND 63.  
24 HR TREND......2 DEGREES WARMER.  
MIN HUMIDITY........33-38 PERCENT.  
24 HR TREND......6 PERCENT DRIER.  
20-FOOT WINDS.......LIGHT WINDS BECOMING EAST AROUND 6 MPH IN THE  
AFTERNOON.  
MIXING HEIGHT.......4200-4700 FT AGL.  
TRANSPORT WINDS.....EAST AROUND 10 MPH.  
SMOKE DISPERSAL.....320-380 (GOOD).  
PCPN AMOUNT.........NONE.  
 
 
   
FORECAST FOR DAYS 3 THROUGH 7  
 
   
THURSDAY NIGHT  
MOSTLY CLEAR. AREAS OF FROST AFTER MIDNIGHT. LOWS  
IN THE MID 30S. SOUTHEAST WINDS 5 TO 6 MPH.    
FRIDAY  
MOSTLY SUNNY. PATCHY FROST IN THE MORNING. HIGHS IN THE  
MID 60S. SOUTH WINDS 5 TO 9 MPH.    
FRIDAY NIGHT  
PARTLY CLOUDY. LOWS IN THE MID 40S. SOUTH WINDS 5 TO  
6 MPH IN THE EVENING BECOMING LIGHT.    
SATURDAY  
MOSTLY SUNNY. HIGHS IN THE UPPER 60S. SOUTH WINDS 5 TO  
9 MPH.    
SATURDAY NIGHT  
MOSTLY CLEAR. LOWS IN THE MID 40S. EAST WINDS 5 TO  
8 MPH.    
SUNDAY  
SUNNY. HIGHS IN THE LOWER 70S. SOUTHEAST WINDS 5 TO  
10 MPH.    
SUNDAY NIGHT  
PARTLY CLOUDY. LOWS IN THE UPPER 40S.    
COLUMBUS DAY  
PARTLY SUNNY. HIGHS IN THE LOWER 70S.    
MONDAY NIGHT  
PARTLY CLOUDY. LOWS IN THE LOWER 50S.    
TUESDAY  
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE LOWER  
70S.  
 
 
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