562  
FNUS53 KGRR 150805  
FWFGRR  
 
FIRE WEATHER PLANNING FORECAST FOR SOUTHWEST LOWER MICHIGAN  
NATIONAL WEATHER SERVICE GRAND RAPIDS MI  
405 AM EDT FRI AUG 15 2025  
   
..DRY TODAY AND THEN CHANCES FOR RAIN SATURDAY THROUGH TUESDAY
 
 
   
DISCUSSION
 
 
WE WILL REMAIN DRY TODAY BUT RAIN CHANCES BEGIN AS EARLY AS TONIGHT.  
PERIODS OF SHOWERS AND STORMS CAN BE EXPECTED FROM SATURDAY THROUGH  
TUESDAY. IT WILL NOT BE DAYS OF RAIN, BUT WE CERTAINLY HAVE CHANCES  
EACH DAY. TORRENTIAL RAIN IS POSSIBLE LOCALLY AS MOISTURE CONTENT IN  
THE ATMOSPHERE WILL BE VERY HIGH. WARM TEMPERATURES ARE EXPECTED  
TODAY AND SATURDAY WITH HIGHS AROUND 90 POSSIBLE EACH DAY.  
 
MIZ037>039-043>045-152015-  
MASON-LAKE-OSCEOLA-OCEANA-NEWAYGO-MECOSTA-  
INCLUDING THE CITIES OF LUDINGTON, BALDWIN, REED CITY, HART,  
FREMONT, AND BIG RAPIDS  
405 AM EDT FRI AUG 15 2025  
   
TODAY
 
 
SKY/WEATHER.........SUNNY (10-20 PERCENT).  
MAX TEMPERATURE.....83-88.  
24 HR TREND......5 DEGREES WARMER.  
MIN HUMIDITY........48-53 PERCENT NEAR LAKE MICHIGAN AND 37-42  
PERCENT INLAND.  
24 HR TREND......UNCHANGED NEAR LAKE MICHIGAN AND 6 PERCENT  
DRIER INLAND.  
20-FOOT WINDS.......SOUTH WINDS 5 TO 9 MPH.  
MIXING HEIGHT.......3000-3500 FT AGL NEAR LAKE MICHIGAN AND  
5100-5600 FT AGL INLAND.  
TRANSPORT WINDS.....SOUTH AROUND 10 MPH.  
SMOKE DISPERSAL.....570-590 (GOOD).  
PCPN AMOUNT.........NONE.  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY (30-40 PERCENT). SLIGHT CHANCE OF  
SHOWERS AND THUNDERSTORMS AFTER 2 AM.  
CHANCE OF PCPN......20 PERCENT OVERNIGHT.  
MIN TEMPERATURE.....62-67.  
24 HR TREND......5 DEGREES WARMER.  
MAX HUMIDITY........95-100 PERCENT.  
24 HR TREND......UNCHANGED.  
20-FOOT WINDS.......SOUTH WINDS 5 TO 6 MPH.  
MIXING HEIGHT.......800-1300 FT AGL.  
TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH.  
SMOKE DISPERSAL.....50-60 (POOR).  
PCPN AMOUNT.........NONE TO 0.01 IN.  
   
SATURDAY
 
 
SKY/WEATHER.........PARTLY SUNNY (55-65 PERCENT). CHANCE OF SHOWERS  
AND THUNDERSTORMS.  
CHANCE OF PCPN......40 PERCENT.  
MAX TEMPERATURE.....82-87.  
24 HR TREND......3 DEGREES COOLER.  
MIN HUMIDITY........72-77 PERCENT NEAR LAKE MICHIGAN AND 63-68  
PERCENT INLAND.  
24 HR TREND......23 PERCENT WETTER NEAR LAKE MICHIGAN AND 31  
PERCENT WETTER INLAND.  
20-FOOT WINDS.......SOUTHWEST WINDS 5 TO 9 MPH.  
MIXING HEIGHT.......1900-2400 FT AGL NEAR LAKE MICHIGAN AND  
2900-3400 FT AGL INLAND.  
TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH.  
SMOKE DISPERSAL.....290-410 (FAIR TO GOOD).  
PCPN AMOUNT.........0.04-0.38 IN.  
 

 
 
MIZ040-046-152015-  
CLARE-ISABELLA-  
INCLUDING THE CITIES OF CLARE AND MOUNT PLEASANT  
405 AM EDT FRI AUG 15 2025  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY (20-30 PERCENT).  
MAX TEMPERATURE.....AROUND 88.  
24 HR TREND......6 DEGREES WARMER.  
MIN HUMIDITY........41 PERCENT.  
24 HR TREND......4 PERCENT DRIER.  
20-FOOT WINDS.......SOUTH WINDS 5 TO 9 MPH.  
MIXING HEIGHT.......6300-6800 FT AGL.  
TRANSPORT WINDS.....SOUTH AROUND 10 MPH.  
SMOKE DISPERSAL.....630-680 (EXCELLENT).  
PCPN AMOUNT.........NONE.  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY (20-30 PERCENT).  
MIN TEMPERATURE.....AROUND 63.  
24 HR TREND......5 DEGREES WARMER.  
MAX HUMIDITY........88-93 PERCENT.  
24 HR TREND......UNCHANGED.  
20-FOOT WINDS.......SOUTHWEST WINDS 5 TO 6 MPH.  
MIXING HEIGHT.......900-1400 FT AGL.  
TRANSPORT WINDS.....SOUTHWEST AROUND 5 MPH.  
SMOKE DISPERSAL.....40-90 (POOR).  
PCPN AMOUNT.........NONE.  
   
SATURDAY
 
 
SKY/WEATHER.........PARTLY SUNNY (55-65 PERCENT). CHANCE OF SHOWERS  
AND THUNDERSTORMS.  
CHANCE OF PCPN......50 PERCENT.  
MAX TEMPERATURE.....83-88.  
24 HR TREND......UNCHANGED.  
MIN HUMIDITY........59-64 PERCENT.  
24 HR TREND......29 PERCENT WETTER.  
20-FOOT WINDS.......WEST WINDS 5 TO 9 MPH.  
MIXING HEIGHT.......3700-4200 FT AGL.  
TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH.  
SMOKE DISPERSAL.....340-480 (GOOD).  
PCPN AMOUNT.........0.08-0.38 IN.  
 

 
 
MIZ050-056-064-071-152015-  
MUSKEGON-OTTAWA-ALLEGAN-VAN BUREN-  
INCLUDING THE CITIES OF MUSKEGON, GRAND HAVEN, JENISON, HOLLAND,  
AND SOUTH HAVEN  
405 AM EDT FRI AUG 15 2025  
   
TODAY
 
 
SKY/WEATHER.........SUNNY (10-20 PERCENT).  
MAX TEMPERATURE.....85-90.  
24 HR TREND......5 DEGREES WARMER.  
MIN HUMIDITY........46-51 PERCENT NEAR LAKE MICHIGAN AND 36-41  
PERCENT INLAND.  
24 HR TREND......15 PERCENT DRIER NEAR LAKE MICHIGAN AND 13  
PERCENT DRIER INLAND.  
20-FOOT WINDS.......LIGHT WINDS BECOMING WEST AROUND 5 MPH IN THE  
AFTERNOON.  
MIXING HEIGHT.......3500-4000 FT AGL NEAR LAKE MICHIGAN AND  
5600-6100 FT AGL INLAND.  
TRANSPORT WINDS.....SOUTHWEST AROUND 5 MPH.  
SMOKE DISPERSAL.....360-390 (GOOD).  
PCPN AMOUNT.........NONE.  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY (25-35 PERCENT).  
MIN TEMPERATURE.....AROUND 69.  
24 HR TREND......5 DEGREES WARMER.  
MAX HUMIDITY........92-97 PERCENT.  
24 HR TREND......UNCHANGED.  
20-FOOT WINDS.......SOUTH WINDS 5 TO 6 MPH.  
MIXING HEIGHT.......600-1100 FT AGL.  
TRANSPORT WINDS.....SOUTH 5 TO 10 MPH.  
SMOKE DISPERSAL.....40 (POOR).  
PCPN AMOUNT.........NONE.  
   
SATURDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY (45-55 PERCENT).  
MAX TEMPERATURE.....86-91.  
24 HR TREND......UNCHANGED.  
MIN HUMIDITY........57-62 PERCENT.  
24 HR TREND......23 PERCENT WETTER.  
20-FOOT WINDS.......SOUTHWEST WINDS 5 TO 10 MPH.  
MIXING HEIGHT.......1500-2000 FT AGL NEAR LAKE MICHIGAN AND  
3000-3500 FT AGL INLAND.  
TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH.  
SMOKE DISPERSAL.....260-320 (FAIR TO GOOD).  
PCPN AMOUNT.........NONE TO 0.42 IN.  
 

 
 
MIZ051-052-057>059-152015-  
MONTCALM-GRATIOT-KENT-IONIA-CLINTON-  
INCLUDING THE CITIES OF GREENVILLE, ALMA, GRAND RAPIDS, IONIA,  
AND ST. JOHNS  
405 AM EDT FRI AUG 15 2025  
   
TODAY
 
 
SKY/WEATHER.........SUNNY (10-20 PERCENT).  
MAX TEMPERATURE.....AROUND 88.  
24 HR TREND......5 DEGREES WARMER.  
MIN HUMIDITY........38-43 PERCENT.  
24 HR TREND......13 PERCENT DRIER.  
20-FOOT WINDS.......SOUTH WINDS 5 TO 8 MPH.  
MIXING HEIGHT.......5900-6400 FT AGL.  
TRANSPORT WINDS.....SOUTH 5 TO 10 MPH.  
SMOKE DISPERSAL.....460-540 (GOOD).  
PCPN AMOUNT.........NONE.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR (20-30 PERCENT).  
MIN TEMPERATURE.....63-68.  
24 HR TREND......4 DEGREES WARMER.  
MAX HUMIDITY........88-93 PERCENT.  
24 HR TREND......UNCHANGED.  
20-FOOT WINDS.......SOUTHWEST WINDS 5 TO 7 MPH.  
MIXING HEIGHT.......800-1300 FT AGL.  
TRANSPORT WINDS.....SOUTHWEST AROUND 5 MPH.  
SMOKE DISPERSAL.....40 (POOR).  
PCPN AMOUNT.........NONE.  
   
SATURDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY (45-55 PERCENT). CHANCE OF SHOWERS  
AND THUNDERSTORMS.  
CHANCE OF PCPN......30 PERCENT.  
MAX TEMPERATURE.....AROUND 88.  
24 HR TREND......1 DEGREE WARMER.  
MIN HUMIDITY........57-62 PERCENT.  
24 HR TREND......24 PERCENT WETTER.  
20-FOOT WINDS.......SOUTHWEST WINDS 5 TO 10 MPH.  
MIXING HEIGHT.......3400-3900 FT AGL.  
TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH.  
SMOKE DISPERSAL.....320-440 (GOOD).  
PCPN AMOUNT.........0.02-0.36 IN.  
 

 
 
MIZ065>067-072>074-152015-  
BARRY-EATON-INGHAM-KALAMAZOO-CALHOUN-JACKSON-  
INCLUDING THE CITIES OF HASTINGS, CHARLOTTE, LANSING, KALAMAZOO,  
BATTLE CREEK, AND JACKSON  
405 AM EDT FRI AUG 15 2025  
   
TODAY
 
 
SKY/WEATHER.........SUNNY (10-20 PERCENT).  
MAX TEMPERATURE.....AROUND 88.  
24 HR TREND......4 DEGREES WARMER.  
MIN HUMIDITY........39-44 PERCENT.  
24 HR TREND......8 PERCENT DRIER.  
20-FOOT WINDS.......SOUTH WINDS 5 TO 7 MPH.  
MIXING HEIGHT.......6100-6600 FT AGL.  
TRANSPORT WINDS.....SOUTH AROUND 5 MPH.  
SMOKE DISPERSAL.....440-500 (GOOD).  
PCPN AMOUNT.........NONE.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR (15-25 PERCENT).  
MIN TEMPERATURE.....64-69.  
24 HR TREND......5 DEGREES WARMER.  
MAX HUMIDITY........92-97 PERCENT.  
24 HR TREND......UNCHANGED.  
20-FOOT WINDS.......SOUTH WINDS 5 TO 6 MPH.  
MIXING HEIGHT.......700-1200 FT AGL.  
TRANSPORT WINDS.....SOUTH AROUND 5 MPH.  
SMOKE DISPERSAL.....40-50 (POOR).  
PCPN AMOUNT.........NONE.  
   
SATURDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY (35-45 PERCENT).  
MAX TEMPERATURE.....AROUND 89.  
24 HR TREND......1 DEGREE WARMER.  
MIN HUMIDITY........57-62 PERCENT.  
24 HR TREND......18 PERCENT WETTER.  
20-FOOT WINDS.......SOUTHWEST WINDS 5 TO 9 MPH.  
MIXING HEIGHT.......3900-4400 FT AGL.  
TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH.  
SMOKE DISPERSAL.....340-400 (GOOD).  
PCPN AMOUNT.........NONE TO 0.32 IN.  
 

 
   
FORECAST FOR DAYS 3 THROUGH 7
 
 
   
SATURDAY NIGHT
 
PARTLY CLOUDY WITH A CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE UPPER 60S. NORTHWEST WINDS 5 TO 9 MPH.    
SUNDAY
 
PARTLY SUNNY WITH A SLIGHT CHANCE OF THUNDERSTORMS. CHANCE  
OF SHOWERS. HIGHS IN THE LOWER 80S. NORTHEAST WINDS 5 TO 10 MPH.    
SUNDAY NIGHT
 
PARTLY CLOUDY. LOWS IN THE LOWER 60S. EAST WINDS  
5 TO 9 MPH.    
MONDAY
 
PARTLY SUNNY WITH A CHANCE OF SHOWERS. CHANCE OF  
THUNDERSTORMS. HIGHS IN THE LOWER 80S. SOUTHEAST WINDS 5 TO 10 MPH.    
MONDAY NIGHT
 
PARTLY CLOUDY WITH A CHANCE OF SHOWERS AND  
THUNDERSTORMS. LOWS IN THE MID 60S. SOUTHEAST WINDS 5 TO 9 MPH.    
TUESDAY
 
PARTLY SUNNY WITH A CHANCE OF SHOWERS AND THUNDERSTORMS.  
HIGHS IN THE LOWER 80S. SOUTHEAST WINDS 5 TO 8 MPH SHIFTING TO THE  
NORTHWEST 5 TO 9 MPH IN THE AFTERNOON.    
TUESDAY NIGHT
 
PARTLY CLOUDY. LOWS IN THE LOWER 60S.    
WEDNESDAY
 
MOSTLY SUNNY. HIGHS AROUND 80.    
WEDNESDAY NIGHT
 
MOSTLY CLEAR. LOWS IN THE UPPER 50S.    
THURSDAY
 
SUNNY. HIGHS IN THE LOWER 80S.  
 

 
 
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