370  
FNUS53 KGRR 180803  
FWFGRR  
 
FIRE WEATHER PLANNING FORECAST FOR SOUTHWEST LOWER MICHIGAN  
NATIONAL WEATHER SERVICE GRAND RAPIDS MI  
403 AM EDT FRI SEP 18 2020  
 
   
..DRY AND COOL
 
 
   
DISCUSSION
 
 
MORNING FROST TODAY AND TOMORROW WITH MAX AND MIN TEMPERATURES  
10 TO 20 DEGREES BELOW NORMAL THROUGH THE WEEKEND. THE AIR WILL  
BE FAIRLY DRY WITH DECREASING WINDS TODAY INTO TOMORROW.  
RHS WILL DROP TO THE MID 30S SATURDAY AND SUNDAY.  
 
MIZ037>039-043>045-182030-  
MASON-LAKE-OSCEOLA-OCEANA-NEWAYGO-MECOSTA-  
INCLUDING THE CITIES OF LUDINGTON, BALDWIN, REED CITY, HART,  
FREMONT, AND BIG RAPIDS  
403 AM EDT FRI SEP 18 2020  
   
TODAY
 
 
SKY/WEATHER.........SUNNY (0-5 PERCENT). AREAS OF FROST UNTIL 0900.  
MAX TEMPERATURE.....54-59.  
24 HR TREND......MISSING.  
MIN HUMIDITY........43-48 PERCENT NEAR LAKE MICHIGAN AND 35-40  
PERCENT INLAND.  
24 HR TREND......11 PERCENT DRIER NEAR LAKE MICHIGAN AND 8  
PERCENT DRIER INLAND.  
20-FOOT WINDS.......NORTH WINDS 7 TO 12 MPH.  
HAINES INDEX........MISSING.  
MIXING HEIGHT.......  
TRANSPORT WINDS.....  
SMOKE DISPERSAL.....0 (POOR).  
PCPN AMOUNT.........NONE.  
   
TONIGHT
 
 
SKY/WEATHER.........CLEAR (0-10 PERCENT). AREAS OF FROST AFTER  
0200.  
MIN TEMPERATURE.....33-38 NEAR LAKE MICHIGAN AND 25-30 INLAND.  
24 HR TREND......  
24 HR TREND......3 DEGREES COOLER.  
24 HR TREND......  
MAX HUMIDITY........95-100 PERCENT.  
24 HR TREND......UNCHANGED.  
20-FOOT WINDS.......NORTHEAST WINDS AROUND 6 MPH SHIFTING TO THE  
SOUTHEAST AROUND 5 MPH OVERNIGHT.  
HAINES INDEX........MISSING.  
MIXING HEIGHT.......  
TRANSPORT WINDS.....  
SMOKE DISPERSAL.....0 (POOR).  
PCPN AMOUNT.........NONE.  
   
SATURDAY
 
 
SKY/WEATHER.........SUNNY (5-15 PERCENT). AREAS OF FROST UNTIL  
0900.  
MAX TEMPERATURE.....58-63.  
24 HR TREND......5 DEGREES WARMER.  
MIN HUMIDITY........42-47 PERCENT NEAR LAKE MICHIGAN AND 33-38  
PERCENT INLAND.  
24 HR TREND......1 PERCENT DRIER NEAR LAKE MICHIGAN AND 3  
PERCENT DRIER INLAND.  
20-FOOT WINDS.......SOUTH WINDS 5 TO 8 MPH.  
HAINES INDEX........MISSING.  
MIXING HEIGHT.......  
TRANSPORT WINDS.....  
SMOKE DISPERSAL.....0 (POOR).  
PCPN AMOUNT.........NONE.  
 

 
 
MIZ040-046-182030-  
CLARE-ISABELLA-  
INCLUDING THE CITIES OF CLARE AND MOUNT PLEASANT  
403 AM EDT FRI SEP 18 2020  
   
TODAY
 
 
SKY/WEATHER.........SUNNY (0-5 PERCENT). AREAS OF FROST UNTIL 0900.  
MAX TEMPERATURE.....AROUND 57.  
24 HR TREND......MISSING.  
MIN HUMIDITY........32-37 PERCENT.  
24 HR TREND......4 PERCENT DRIER.  
20-FOOT WINDS.......NORTH WINDS 6 TO 11 MPH.  
HAINES INDEX........MISSING.  
MIXING HEIGHT.......MISSING.  
TRANSPORT WINDS.....  
SMOKE DISPERSAL.....0 (POOR).  
PCPN AMOUNT.........NONE.  
   
TONIGHT
 
 
SKY/WEATHER.........CLEAR (0-10 PERCENT) UNTIL 2300, THEN PARTLY  
CLOUDY (20-30 PERCENT) UNTIL 0200, THEN CLEAR  
(0-5 PERCENT). AREAS OF FROST AFTER 2400 UNTIL  
0500, THEN WIDESPREAD FROST UNTIL 0700, THEN  
AREAS OF FROST.  
MIN TEMPERATURE.....24-29.  
24 HR TREND......3 DEGREES COOLER.  
MAX HUMIDITY........98 PERCENT.  
24 HR TREND......UNCHANGED.  
20-FOOT WINDS.......LIGHT WINDS.  
HAINES INDEX........MISSING.  
MIXING HEIGHT.......MISSING.  
TRANSPORT WINDS.....  
SMOKE DISPERSAL.....0 (POOR).  
PCPN AMOUNT.........NONE.  
   
SATURDAY
 
 
SKY/WEATHER.........SUNNY (5-15 PERCENT). AREAS OF FROST UNTIL  
0900.  
MAX TEMPERATURE.....AROUND 60.  
24 HR TREND......3 DEGREES WARMER.  
MIN HUMIDITY........35-40 PERCENT.  
24 HR TREND......4 PERCENT WETTER.  
20-FOOT WINDS.......LIGHT WINDS BECOMING SOUTH AROUND 5 MPH IN THE  
AFTERNOON.  
HAINES INDEX........MISSING.  
MIXING HEIGHT.......MISSING.  
TRANSPORT WINDS.....  
SMOKE DISPERSAL.....0 (POOR).  
PCPN AMOUNT.........NONE.  
 

 
 
MIZ050-056-064-071-182030-  
MUSKEGON-OTTAWA-ALLEGAN-VAN BUREN-  
INCLUDING THE CITIES OF MUSKEGON, GRAND HAVEN, JENISON, HOLLAND,  
AND SOUTH HAVEN  
403 AM EDT FRI SEP 18 2020  
   
TODAY
 
 
SKY/WEATHER.........SUNNY (0-5 PERCENT).  
MAX TEMPERATURE.....56-61.  
24 HR TREND......MISSING.  
MIN HUMIDITY........34-39 PERCENT.  
24 HR TREND......4 PERCENT WETTER.  
20-FOOT WINDS.......NORTHEAST WINDS 8 TO 13 MPH.  
HAINES INDEX........MISSING.  
MIXING HEIGHT.......MISSING.  
TRANSPORT WINDS.....  
SMOKE DISPERSAL.....0 (POOR).  
PCPN AMOUNT.........NONE.  
   
TONIGHT
 
 
SKY/WEATHER.........CLEAR (0-5 PERCENT). AREAS OF FROST AFTER 0400.  
MIN TEMPERATURE.....32-37.  
24 HR TREND......5 DEGREES COOLER.  
MAX HUMIDITY........95-100 PERCENT.  
24 HR TREND......UNCHANGED.  
20-FOOT WINDS.......NORTHEAST WINDS AROUND 7 MPH SHIFTING TO THE  
SOUTHEAST OVERNIGHT.  
HAINES INDEX........MISSING.  
MIXING HEIGHT.......MISSING.  
TRANSPORT WINDS.....  
SMOKE DISPERSAL.....0 (POOR).  
PCPN AMOUNT.........NONE.  
   
SATURDAY
 
 
SKY/WEATHER.........SUNNY (0-10 PERCENT). AREAS OF FROST UNTIL  
0900.  
MAX TEMPERATURE.....58-63.  
24 HR TREND......4 DEGREES WARMER.  
MIN HUMIDITY........38-43 PERCENT.  
24 HR TREND......3 PERCENT DRIER.  
20-FOOT WINDS.......SOUTHEAST WINDS AROUND 7 MPH UNTIL MIDDAY  
BECOMING LIGHT.  
HAINES INDEX........MISSING.  
MIXING HEIGHT.......MISSING.  
TRANSPORT WINDS.....  
SMOKE DISPERSAL.....0 (POOR).  
PCPN AMOUNT.........NONE.  
 

 
 
MIZ051-052-057>059-182030-  
MONTCALM-GRATIOT-KENT-IONIA-CLINTON-  
INCLUDING THE CITIES OF GREENVILLE, ALMA, GRAND RAPIDS, IONIA,  
AND ST. JOHNS  
403 AM EDT FRI SEP 18 2020  
   
TODAY
 
 
SKY/WEATHER.........SUNNY (0-5 PERCENT).  
MAX TEMPERATURE.....AROUND 58.  
24 HR TREND......MISSING.  
MIN HUMIDITY........32-37 PERCENT.  
24 HR TREND......3 PERCENT DRIER.  
20-FOOT WINDS.......NORTHEAST WINDS 7 TO 12 MPH.  
HAINES INDEX........MISSING.  
MIXING HEIGHT.......MISSING.  
TRANSPORT WINDS.....  
SMOKE DISPERSAL.....0 (POOR).  
PCPN AMOUNT.........NONE.  
   
TONIGHT
 
 
SKY/WEATHER.........CLEAR (0-5 PERCENT). AREAS OF FROST AFTER 0300  
UNTIL 0500, THEN WIDESPREAD FROST UNTIL 0700,  
THEN AREAS OF FROST.  
MIN TEMPERATURE.....33-38.  
24 HR TREND......4 DEGREES COOLER.  
MAX HUMIDITY........95-100 PERCENT.  
24 HR TREND......UNCHANGED.  
20-FOOT WINDS.......EAST WINDS AROUND 5 MPH IN THE EVENING BECOMING  
LIGHT.  
HAINES INDEX........MISSING.  
MIXING HEIGHT.......MISSING.  
TRANSPORT WINDS.....  
SMOKE DISPERSAL.....0 (POOR).  
PCPN AMOUNT.........NONE.  
   
SATURDAY
 
 
SKY/WEATHER.........SUNNY (0-10 PERCENT). AREAS OF FROST UNTIL  
0900.  
MAX TEMPERATURE.....58-63.  
24 HR TREND......3 DEGREES WARMER.  
MIN HUMIDITY........38-43 PERCENT.  
24 HR TREND......4 PERCENT WETTER.  
20-FOOT WINDS.......SOUTHEAST WINDS 5 TO 8 MPH.  
HAINES INDEX........MISSING.  
MIXING HEIGHT.......MISSING.  
TRANSPORT WINDS.....  
SMOKE DISPERSAL.....0 (POOR).  
PCPN AMOUNT.........NONE.  
 

 
 
MIZ065>067-072>074-182030-  
BARRY-EATON-INGHAM-KALAMAZOO-CALHOUN-JACKSON-  
INCLUDING THE CITIES OF HASTINGS, CHARLOTTE, LANSING, KALAMAZOO,  
BATTLE CREEK, AND JACKSON  
403 AM EDT FRI SEP 18 2020  
   
TODAY
 
 
SKY/WEATHER.........SUNNY (0-5 PERCENT).  
MAX TEMPERATURE.....AROUND 57.  
24 HR TREND......MISSING.  
MIN HUMIDITY........38-43 PERCENT.  
24 HR TREND......9 PERCENT WETTER.  
20-FOOT WINDS.......NORTHEAST WINDS 8 TO 13 MPH.  
HAINES INDEX........MISSING.  
MIXING HEIGHT.......MISSING.  
TRANSPORT WINDS.....  
SMOKE DISPERSAL.....0 (POOR).  
PCPN AMOUNT.........NONE.  
   
TONIGHT
 
 
SKY/WEATHER.........CLEAR (0-5 PERCENT). AREAS OF FROST AFTER 0300.  
MIN TEMPERATURE.....31-36.  
24 HR TREND......5 DEGREES COOLER.  
MAX HUMIDITY........95-100 PERCENT.  
24 HR TREND......UNCHANGED.  
20-FOOT WINDS.......EAST WINDS 5 TO 8 MPH.  
HAINES INDEX........MISSING.  
MIXING HEIGHT.......MISSING.  
TRANSPORT WINDS.....  
SMOKE DISPERSAL.....0 (POOR).  
PCPN AMOUNT.........NONE.  
   
SATURDAY
 
 
SKY/WEATHER.........SUNNY (0-5 PERCENT). AREAS OF FROST UNTIL 0900.  
MAX TEMPERATURE.....AROUND 62.  
24 HR TREND......4 DEGREES WARMER.  
MIN HUMIDITY........38-43 PERCENT.  
24 HR TREND......3 PERCENT DRIER.  
20-FOOT WINDS.......EAST WINDS AROUND 6 MPH UNTIL MIDDAY BECOMING  
LIGHT.  
HAINES INDEX........MISSING.  
MIXING HEIGHT.......MISSING.  
TRANSPORT WINDS.....  
SMOKE DISPERSAL.....0 (POOR).  
PCPN AMOUNT.........NONE.  
 

 
   
FORECAST FOR DAYS 3 THROUGH 7
 
 
   
SATURDAY NIGHT
 
MOSTLY CLEAR. LOWS IN THE UPPER 30S. LIGHT WINDS  
BECOMING SOUTHEAST UP TO 5 MPH OVERNIGHT.    
SUNDAY
 
SUNNY. HIGHS IN THE MID 60S. SOUTHEAST WINDS 5 TO 10 MPH.    
SUNDAY NIGHT
 
MOSTLY CLEAR. LOWS IN THE LOWER 40S. SOUTHEAST WINDS  
5 TO 9 MPH.    
MONDAY
 
SUNNY. HIGHS IN THE UPPER 60S. SOUTH WINDS 5 TO 10 MPH.    
MONDAY NIGHT
 
MOSTLY CLEAR. LOWS IN THE UPPER 40S. SOUTH WINDS  
5 TO 9 MPH.    
TUESDAY
 
SUNNY. HIGHS IN THE LOWER 70S. SOUTHWEST WINDS 5 TO  
10 MPH.    
TUESDAY NIGHT
 
MOSTLY CLEAR. LOWS IN THE MID 50S.    
WEDNESDAY
 
MOSTLY SUNNY. HIGHS IN THE MID 70S.    
WEDNESDAY NIGHT
 
PARTLY CLOUDY. LOWS IN THE MID 50S.    
THURSDAY
 
MOSTLY SUNNY. CHANCE OF SHOWERS UNTIL MIDDAY. HIGHS IN  
THE LOWER 70S.  
 

 
 
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