892  
FNUS73 KDTX 151314  
FWSDTX  
 
SPOT FORECAST FOR CHATFIELD 2026 PRESCRIBED BURN...CITY OF LAPEER FIRE-RESCUE  
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI  
914 AM EDT WED APR 15 2026  
 
FORECAST IS BASED ON FORECAST START TIME OF 1008 EDT ON APRIL 15.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
   
DISCUSSION  
WARMER CONDITIONS WITH HIGHER HUMIDITY EXPECTED THIS  
WEEK. AN ACTIVE PATTERN WILL BRING PERIODIC CHANCES FOR SHOWERS AND  
THUNDERSTORMS THROUGH THURSDAY. MINIMUM RH VALUES RISE TO NEAR 70  
PERCENT WEDNESDAY AND THURSDAY AFTERNOONS.  
   
REST OF TODAY  
 
SKY/WEATHER.........MOSTLY CLOUDY (75-85 PERCENT). CHANCE OF  
SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS LATE  
IN THE MORNING, THEN SHOWERS AND CHANCE OF  
THUNDERSTORMS IN THE AFTERNOON.  
MAX TEMPERATURE.....AROUND 73.  
MIN HUMIDITY........71 PERCENT.  
MIXING HEIGHT.......2500 FT AGL.  
TRANSPORT WINDS.....SOUTHWEST 17 TO 23 MPH.  
SMOKE DISPERSAL....GOOD (MAX...387).  
 
TIME (EDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM  
SKY (%)..........86 82 82 86 84 80 74 86  
WEATHER COV......CHC CHC CHC LKY DEF LKY DEF DEF  
WEATHER TYPE.....RW RW RW RW RW RW RW RW  
TEMP.............67 68 70 70 69 71 70 71  
RH...............87 84 79 78 78 71 73 71  
MIX HGT (KFT)....1.4 1.8 1.7 1.8 2.1 2.4 2.5 2.1  
TRANSP WIND DIR..W W W SW SW SW SW SW  
TRANSP WIND SPD..21 23 17 20 20 18 17 18  
SMOKE DISPER......25 35 25 30 36 39 37 33  
   
TONIGHT  
 
SKY/WEATHER.........MOSTLY CLOUDY (75-85 PERCENT). SHOWERS LIKELY  
IN THE EVENING. CHANCE OF THUNDERSTORMS THROUGH  
THE NIGHT. SHOWERS OVERNIGHT.  
MIN TEMPERATURE.....AROUND 60.  
MAX HUMIDITY........97 PERCENT.  
MIXING HEIGHT.......600 FT AGL.  
TRANSPORT WINDS.....SOUTHWEST 9 TO 15 MPH.  
SMOKE DISPERSAL....POOR (MIN...48).  
 
TIME (EDT) 2 PM 4 PM 6 PM 8 PM 10 PM MIDNGT  
SKY (%)..........74 77 84 80 87 86  
WEATHER COV......LIKELY LIKELY LIKELY CHANCE DEFNTE DEFNTE  
WEATHER TYPE.....RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR  
TEMP.............70 67 65 63 63 61  
RH...............73 80 85 88 89 94  
MIX HGT (KFT)....1700 600 700 700 700 700  
TRANSP WIND DIR..SW SW SW SW SW SW  
TRANSP WIND SPD..15 9 14 15 15 13  
SMOKE DISPER......22 5 8 9 9 8  
   
THURSDAY  
 
SKY/WEATHER.........MOSTLY CLOUDY (75-85 PERCENT). SHOWERS AND  
CHANCE OF THUNDERSTORMS.  
MAX TEMPERATURE.....AROUND 70.  
MIN HUMIDITY........72 PERCENT.  
MIXING HEIGHT.......3800 FT AGL.  
TRANSPORT WINDS.....SOUTHWEST 12 TO 18 MPH...INCREASING TO 23 TO 32  
MPH IN THE LATE MORNING AND AFTERNOON.  
SMOKE DISPERSAL....EXCELLENT (MAX...1058).  
 
TIME (EDT) 2 AM 5 AM 8 AM 11 AM  
SKY (%)..........92 71 82 74  
WEATHER COV......DEFNTE DEFNTE DEFNTE DEFNTE  
WEATHER TYPE.....RNSHWR RNSHWR RNSHWR RNSHWR  
TEMP.............60 62 66 68  
RH...............97 94 84 76  
MIX HGT (KFT)....800 1200 2800 3600  
MIXNG WIND......S 12 SW 18 SW 30 SW 31  
SMOKE DISPER......8 20 74 96  
 
 
FORECASTER...RICHTER  
REQUESTED BY...CPT. JERRAD WITTKE  
TYPE OF REQUEST...PRESCRIBED  
.TAG 2609961.1/DTX  
.DELDT 04/15/26  
.FORMATTERVERSION 2.0.0  
.EMAIL JWITTKE@CI.LAPEER.MI.US  
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