973
FNUS53 KDTX 170718
FWFDTX
FIRE WEATHER PLANNING FORECAST FOR SOUTHEAST MICHIGAN
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
318 AM EDT THU SEP 17 2026
DISCUSSION
RELATIVELY STABLE MIDLEVELS WILL KEEP ANY SHOWER
ACTIVITY LIGHT THIS MORNING. STRONG SURFACE HIGH PRESSURE ON FRIDAY
WITH MINIMUM RH RANGING 50 TO 60 PERCENT. THE NEXT POTENTIAL FOR
RAINFALL, POSSIBLY HEAVY RAIN, WILL BE DURING THE DAYTIME SATURDAY.
MIZ047-048-053-060-061-172115-
MIDLAND-BAY-SAGINAW-SHIAWASSEE-GENESEE-
INCLUDING THE CITIES OF MIDLAND-BAY CITY-SAGINAW-OWOSSO-FLINT
318 AM EDT THU SEP 17 2026
TODAY
SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT) UNTIL 2 PM, THEN
PARTLY CLOUDY (50-60 PERCENT). CHANCE OF RAIN
SHOWERS UNTIL 5 AM. CHANCE OF PRECIPITATION 30
PERCENT.
MAX TEMPERATURE.....70-74.
24 HR TREND......2 DEGREES WARMER.
MIN HUMIDITY........49-59 PERCENT.
24 HR TREND......15 PERCENT DRIER.
20-FOOT WINDS.......NORTHEAST 5 TO 10 MPH.
MIXING HEIGHT.......2460-2960 FT AGL.
TRANSPORT WINDS.....NORTHEAST 5 TO 10 MPH.
SMOKE DISPERSAL.....FAIR (197).
PCPN AMOUNT.........0.01-0.05 IN.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (30-40 PERCENT).
MIN TEMPERATURE.....48-54.
24 HR TREND......8 DEGREES COOLER.
MAX HUMIDITY........95-100 PERCENT.
24 HR TREND......UNCHANGED.
20-FOOT WINDS.......NORTHEAST AROUND 5 MPH EARLY IN THE EVENING
BECOMING LIGHT, THEN BECOMING NORTH AROUND 5
MPH AFTER MIDNIGHT.
MIXING HEIGHT.......740-940 FT AGL.
TRANSPORT WINDS.....NORTHEAST 5 TO 10 MPH.
SMOKE DISPERSAL.....POOR (13).
PCPN AMOUNT.........NONE.
FRIDAY
SKY/WEATHER.........PARTLY CLOUDY (45-55 PERCENT).
MAX TEMPERATURE.....68-74.
24 HR TREND......UNCHANGED.
MIN HUMIDITY........46-56 PERCENT.
24 HR TREND......5 PERCENT DRIER.
20-FOOT WINDS.......NORTHEAST 5 TO 10 MPH.
MIXING HEIGHT.......3910-4410 FT AGL.
TRANSPORT WINDS.....NORTHEAST 10 TO 15 MPH.
SMOKE DISPERSAL.....GOOD (368).
PCPN AMOUNT.........NONE.
MIZ049-054-055-062-172115-
HURON-TUSCOLA-SANILAC-LAPEER-
INCLUDING THE CITIES OF BAD AXE-CARO-SANDUSKY-LAPEER
318 AM EDT THU SEP 17 2026
TODAY
SKY/WEATHER.........MOSTLY CLOUDY (75-85 PERCENT) UNTIL 8 AM, THEN
PARTLY CLOUDY (45-55 PERCENT). SLIGHT CHANCE OF
SHOWERS UNTIL 8 AM. CHANCE OF
PRECIPITATION 20 PERCENT.
MAX TEMPERATURE.....68-74.
24 HR TREND......3 DEGREES WARMER.
MIN HUMIDITY........49-59 PERCENT.
24 HR TREND......9 PERCENT DRIER.
20-FOOT WINDS.......NORTHEAST 5 TO 10 MPH.
MIXING HEIGHT.......2350-2850 FT AGL.
TRANSPORT WINDS.....NORTHEAST 5 TO 10 MPH.
SMOKE DISPERSAL.....FAIR (221).
PCPN AMOUNT.........0.01-0.05 IN.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (30-40 PERCENT).
MIN TEMPERATURE.....48-54.
24 HR TREND......6 DEGREES COOLER.
MAX HUMIDITY........90-100 PERCENT.
24 HR TREND......UNCHANGED.
20-FOOT WINDS.......NORTHEAST AROUND 5 MPH EARLY IN THE EVENING
BECOMING LIGHT, THEN BECOMING NORTH AROUND 5
MPH AFTER MIDNIGHT.
MIXING HEIGHT.......740-940 FT AGL.
TRANSPORT WINDS.....NORTH 5 TO 10 MPH.
SMOKE DISPERSAL.....POOR (10).
PCPN AMOUNT.........NONE.
FRIDAY
SKY/WEATHER.........PARTLY CLOUDY (40-50 PERCENT).
MAX TEMPERATURE.....68-74.
24 HR TREND......2 DEGREES COOLER.
MIN HUMIDITY........45-55 PERCENT.
24 HR TREND......4 PERCENT DRIER.
20-FOOT WINDS.......NORTHEAST 5 TO 10 MPH.
MIXING HEIGHT.......3500-4000 FT AGL.
TRANSPORT WINDS.....NORTHEAST 10 TO 15 MPH.
SMOKE DISPERSAL.....GOOD (409).
PCPN AMOUNT.........NONE.
MIZ063-068>070-075-076-082-083-172115-
ST CLAIR-LIVINGSTON-OAKLAND-MACOMB-WASHTENAW-WAYNE-LENAWEE-MONROE-
INCLUDING THE CITIES OF PORT HURON-HOWELL-PONTIAC-WARREN-ANN
ARBOR-DETROIT-ADRIAN-MONROE
318 AM EDT THU SEP 17 2026
TODAY
SKY/WEATHER.........MOSTLY CLOUDY (65-75 PERCENT). CHANCE OF RAIN
SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS
UNTIL 8 AM. CHANCE OF PRECIPITATION 60 PERCENT.
MAX TEMPERATURE.....72-76.
24 HR TREND......5 DEGREES WARMER.
MIN HUMIDITY........51-61 PERCENT.
24 HR TREND......12 PERCENT DRIER.
20-FOOT WINDS.......NORTH 5 TO 10 MPH.
MIXING HEIGHT.......2070-2570 FT AGL.
TRANSPORT WINDS.....NORTH 5 TO 10 MPH.
SMOKE DISPERSAL.....FAIR (213).
PCPN AMOUNT.........0.06-0.10 IN.
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (60-70 PERCENT) UNTIL 2 AM, THEN
PARTLY CLOUDY (45-55 PERCENT).
MIN TEMPERATURE.....52-56.
24 HR TREND......4 DEGREES COOLER.
MAX HUMIDITY........90-100 PERCENT.
24 HR TREND......8 PERCENT DRIER.
20-FOOT WINDS.......NORTHEAST 5 TO 10 MPH.
MIXING HEIGHT.......840-1040 FT AGL.
TRANSPORT WINDS.....NORTH AROUND 10 MPH.
SMOKE DISPERSAL.....POOR (15).
PCPN AMOUNT.........0.01-0.05 IN.
FRIDAY
SKY/WEATHER.........PARTLY CLOUDY (40-50 PERCENT).
MAX TEMPERATURE.....70-76.
24 HR TREND......2 DEGREES COOLER.
MIN HUMIDITY........43-53 PERCENT.
24 HR TREND......21 PERCENT DRIER.
20-FOOT WINDS.......NORTHEAST 5 TO 10 MPH.
MIXING HEIGHT.......4650-5150 FT AGL.
TRANSPORT WINDS.....NORTHEAST AROUND 10 MPH.
SMOKE DISPERSAL.....GOOD (431).
PCPN AMOUNT.........0.01-0.05 IN.
FORECAST DAYS 3 THROUGH 7
SATURDAY
CLOUDY WITH SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS.
LOWS IN THE MID 50S. HIGHS IN THE MID 60S. EAST WINDS AROUND 5 MPH.
SUNDAY
CLOUDY WITH SHOWERS AND CHANCE OF THUNDERSTORMS. LOWS IN
THE UPPER 50S. HIGHS IN THE UPPER 60S. NORTHEAST WINDS AROUND
10 MPH.
MONDAY
MOSTLY CLOUDY. LOWS IN THE LOWER 50S. HIGHS IN THE MID
60S. NORTHEAST WINDS AROUND 10 MPH.
TUESDAY
MOSTLY CLOUDY. LOWS AROUND 50. HIGHS IN THE UPPER 60S.
WEDNESDAY
MOSTLY CLOUDY WITH CHANCE OF SHOWERS. LOWS IN THE LOWER
50S. HIGHS IN THE LOWER 70S.
CB
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page