945  
FNUS73 KDTX 231001  
FWSDTX  
 
SPOT FORECAST FOR HEADQUARTERS UNIT NORTH...MIDNR  
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI  
601 AM EDT THU APR 23 2026  
 
FORECAST IS BASED ON FORECAST START TIME OF 1100 EDT ON APRIL 23.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
   
DISCUSSION
 
MOSTLY DRY CONDITIONS EXPECTED TODAY OUTSIDE OF AN  
ISOLATED SHOWER OR THUNDERSTORM CHANCE WEST OF I-75/US-23. LIGHT  
EAST FLOW THIS MORNING SHIFTS TO THE SOUTH-SOUTHWEST FOR INTERIOR  
LOCATIONS, WHILE MAINTAINING AN EASTERLY COMPONENT CLOSE TO THE  
SHORELINE. MINIMUM RH VALUES BETWEEN 35 AND 50 PERCENT EXPECTED THIS  
AFTERNOON AS PROFILES BECOME WELL-MIXED.  
   
TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY (30-40 PERCENT). ISOLATED RAIN  
SHOWERS LATE IN THE AFTERNOON.  
MAX TEMPERATURE.....AROUND 76.  
MIN HUMIDITY........47 PERCENT.  
SURFACE WINDS (MPH).LIGHT WINDS...BECOMING SOUTH 5 TO 8 MPH IN THE  
LATE MORNING AND AFTERNOON.  
DEWPOINT............43...INCREASING TO 53.  
EYE LEVEL WINDS.....SOUTHEAST WINDS UP TO 6 MPH EARLY IN THE  
MORNING...BECOMING LIGHT, THEN BECOMING SOUTH  
UP TO 6 MPH IN THE LATE MORNING AND AFTERNOON.  
MIXING HEIGHT.......4300 FT AGL.  
TRANSPORT WINDS.....SOUTHEAST 8 TO 10 MPH...BECOMING SOUTH 10 TO 12  
MPH IN THE AFTERNOON.  
SMOKE DISPERSAL....GOOD (MAX...433).  
 
TIME (EDT) 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%)..........23 18 14 11 9 20 23  
WEATHER COV...... ISO  
WEATHER TYPE..... RW  
TEMP.............64 68 71 73 74 75 75  
RH...............59 55 52 50 48 47 47  
EYE LVL WND DIR.SE S S S S S S  
EYE LVL WND SPD.6 6 6 6 6 6 6  
EYE LVL WND GST.10 11 12 12 13 13 12  
MIX HGT (KFT)....1.6 1.9 2.7 3.3 3.8 4.3 4.3  
TRANSP WIND DIR..S S S S S S S  
TRANSP WIND SPD..10 12 10 12 10 12 12  
SMOKE DISPER......15 19 24 33 35 43 43  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR (20-30 PERCENT). ISOLATED RAIN  
SHOWERS EARLY IN THE EVENING.  
MIN TEMPERATURE.....AROUND 52.  
MAX HUMIDITY........83 PERCENT.  
SURFACE WINDS (MPH).SOUTHEAST WINDS 5 TO 7 MPH.  
DEWPOINT............51...DECREASING TO 46 OVERNIGHT.  
EYE LEVEL WINDS.....SOUTHEAST WINDS UP TO 6 MPH.  
MIXING HEIGHT.......400 FT AGL.  
TRANSPORT WINDS.....SOUTH 9 TO 14 MPH.  
SMOKE DISPERSAL....POOR (MIN...29).  
 
TIME (EDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM  
SKY (%)..........26 12 32 18 23 34  
WEATHER COV......ISOLTD  
WEATHER TYPE.....RNSHWR NONE NONE NONE NONE NONE  
TEMP.............75 70 63 59 55 54  
RH...............47 53 66 74 72 75  
EYE LVL WND DIR.S SE SE SE SE SE  
EYE LVL WND SPD.6 5 5 4 4 4  
EYE LVL WND GST.13 11 10 10 8 8  
MIX HGT (KFT)....3800 900 500 500 400 400  
TRANSP WIND DIR..S S SE S SE S  
TRANSP WIND SPD..13 12 13 13 10 10  
SMOKE DISPER......42 9 6 5 4 4  
   
FRIDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY (45-55 PERCENT)BECOMING MOSTLY  
CLOUDY (70-80 PERCENT). SLIGHT CHANCE OF RAIN  
SHOWERS EARLY IN THE MORNING. RAIN SHOWERS  
LIKELY AND CHANCE OF THUNDERSTORMS LATE IN THE  
AFTERNOON.  
MAX TEMPERATURE.....AROUND 76.  
MIN HUMIDITY........57 PERCENT.  
SURFACE WINDS (MPH).SOUTH WINDS 5 TO 10 MPH. GUSTS UP TO 21 MPH IN  
THE AFTERNOON.  
DEWPOINT............50...INCREASING TO 59.  
EYE LEVEL WINDS.....SOUTH WINDS UP TO 8 MPH. GUSTS UP TO 21 MPH IN  
THE AFTERNOON.  
MIXING HEIGHT.......3500 FT AGL.  
TRANSPORT WINDS.....SOUTH 10 TO 18 MPH...INCREASING TO 20 TO 21 MPH  
IN THE AFTERNOON.  
SMOKE DISPERSAL....EXCELLENT (MAX...641).  
 
TIME (EDT) 6 AM 9 AM NOON 3 PM  
SKY (%)..........26 28 68 73  
WEATHER COV...... S CHC S CHC LIKELY  
WEATHER TYPE.....NONE RNSHWR RNSHWR RNSHWR  
TEMP.............53 59 71 74  
RH...............83 78 62 58  
EYE LVL WND DIR.SE S S S  
EYE LVL WND SPD.4 5 7 7  
EYE LVL WND GST.10 11 14 17  
MIX HGT (KFT)....400 700 2300 3500  
MIXNG WIND......S 10 S 14 S 20 S 21  
SMOKE DISPER......3 9 40 64  
 

 
FORECASTER...BEHNKE  
REQUESTED BY...JEFF VASHER  
TYPE OF REQUEST...PRESCRIBED  
.TAG 2611383.0/DTX  
.DELDT 04/23/26  
.FORMATTERVERSION 2.0.0  
.EMAIL VASHERJ@MICHIGAN.GOV  
 
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