343  
FNUS53 KDTX 160705  
FWFDTX  
 
FIRE WEATHER PLANNING FORECAST FOR SOUTHEAST MICHIGAN  
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI  
305 AM EDT THU AUG 16 2018  
   
DISCUSSION
 
CLOUDY AND MOIST TODAY WITH MIN RH AROUND 80 PERCENT,  
ALONG WITH SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS. A CHANCE  
OF SHOWERS AND THUNDERSTORMS WILL CONTINUE ON FRIDAY, AS MIN RH  
REMAINS ELEVATED IN THE 60S. DRYING OUT FOR THE WEEKEND.  
 
MIZ047-048-053-060-061-162000-  
MIDLAND-BAY-SAGINAW-SHIAWASSEE-GENESEE-  
INCLUDING THE CITIES OF MIDLAND-BAY CITY-SAGINAW-OWOSSO-FLINT  
305 AM EDT THU AUG 16 2018  
   
TODAY
 
 
SKY/WEATHER.........PARTLY CLOUDY (45-55 PERCENT) UNTIL 8 AM THEN  
MOSTLY CLOUDY (75-85 PERCENT). CHANCE OF  
SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS  
AFTER 8 AM. CHANCE OF PRECIPITATION 50 PERCENT.  
MAX TEMPERATURE.....75-80.  
24 HR TREND......7 DEGREES COOLER.  
MIN HUMIDITY........67-77 PERCENT.  
24 HR TREND......22 PERCENT WETTER.  
20-FOOT WINDS.......SOUTHEAST WINDS 5 TO 10 MPH.  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
MIXING HEIGHT.......3940-4440 FT AGL.  
TRANSPORT WINDS.....SOUTH AROUND 5 MPH BECOMING EAST IN THE LATE  
MORNING AND AFTERNOON.  
SMOKE DISPERSAL.....GOOD (580).  
PCPN AMOUNT.........0.26-0.50 IN.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY (80-90 PERCENT). A SLIGHT CHANCE  
OF THUNDERSTORMS UNTIL 8 PM. CHANCE OF SHOWERS  
UNTIL 2 AM THEN A SLIGHT CHANCE OF SHOWERS.  
CHANCE OF PRECIPITATION 50 PERCENT.  
MIN TEMPERATURE.....66-71.  
24 HR TREND......1 DEGREE WARMER.  
MAX HUMIDITY........98 PERCENT.  
24 HR TREND......5 PERCENT WETTER.  
20-FOOT WINDS.......SOUTHEAST WINDS AROUND 5 MPH BECOMING EAST IN  
THE LATE EVENING AND EARLY MORNING THEN  
BECOMING NORTHWEST AFTER MIDNIGHT.  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
MIXING HEIGHT.......200-400 FT AGL.  
TRANSPORT WINDS.....EAST AROUND 5 MPH BECOMING NORTHWEST AFTER  
MIDNIGHT.  
SMOKE DISPERSAL.....POOR (0).  
PCPN AMOUNT.........0.26-0.50 IN.  
   
FRIDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT). A SLIGHT CHANCE  
OF SHOWERS UNTIL 8 AM THEN CHANCE OF SHOWERS.  
CHANCE OF THUNDERSTORMS AFTER 2 PM. CHANCE OF  
PRECIPITATION 50 PERCENT.  
MAX TEMPERATURE.....77-82.  
24 HR TREND......2 DEGREES WARMER.  
MIN HUMIDITY........59-69 PERCENT.  
24 HR TREND......9 PERCENT DRIER.  
20-FOOT WINDS.......NORTH WINDS 5 TO 10 MPH.  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
MIXING HEIGHT.......3310-3810 FT AGL.  
TRANSPORT WINDS.....NORTH AROUND 10 MPH.  
SMOKE DISPERSAL.....GOOD (420).  
PCPN AMOUNT.........0.11-0.25 IN.  
 

 
 
MIZ049-054-055-062-162000-  
HURON-TUSCOLA-SANILAC-LAPEER-  
INCLUDING THE CITIES OF BAD AXE-CARO-SANDUSKY-LAPEER  
305 AM EDT THU AUG 16 2018  
   
TODAY
 
 
SKY/WEATHER.........PARTLY CLOUDY (50-60 PERCENT) UNTIL 10 AM THEN  
MOSTLY CLOUDY (75-85 PERCENT). CHANCE OF  
SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS  
AFTER 8 AM. CHANCE OF PRECIPITATION 50 PERCENT.  
MAX TEMPERATURE.....76-81.  
24 HR TREND......7 DEGREES COOLER.  
MIN HUMIDITY........71-79 PERCENT.  
24 HR TREND......23 PERCENT WETTER.  
20-FOOT WINDS.......SOUTH WINDS 5 TO 10 MPH.  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
MIXING HEIGHT.......3620-4120 FT AGL.  
TRANSPORT WINDS.....SOUTH AROUND 5 MPH BECOMING SOUTHEAST 10 TO 15  
MPH IN THE LATE MORNING AND AFTERNOON.  
SMOKE DISPERSAL.....GOOD (560).  
PCPN AMOUNT.........0.11-0.25 IN.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY (85-95 PERCENT). A SLIGHT CHANCE  
OF THUNDERSTORMS UNTIL 8 PM. CHANCE OF SHOWERS.  
CHANCE OF PRECIPITATION 50 PERCENT.  
MIN TEMPERATURE.....66-71.  
24 HR TREND......2 DEGREES WARMER.  
MAX HUMIDITY........98 PERCENT.  
24 HR TREND......5 PERCENT WETTER.  
20-FOOT WINDS.......SOUTH WINDS 5 TO 10 MPH BECOMING WEST AFTER  
MIDNIGHT.  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
MIXING HEIGHT.......120-320 FT AGL.  
TRANSPORT WINDS.....SOUTH AROUND 5 MPH BECOMING NORTHWEST AFTER  
MIDNIGHT.  
SMOKE DISPERSAL.....POOR (0).  
PCPN AMOUNT.........0.26-0.50 IN.  
   
FRIDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY (65-75 PERCENT). CHANCE OF  
SHOWERS UNTIL 2 PM THEN A SLIGHT CHANCE OF  
SHOWERS AND THUNDERSTORMS. CHANCE OF  
PRECIPITATION 50 PERCENT.  
MAX TEMPERATURE.....76-81.  
24 HR TREND......1 DEGREE WARMER.  
MIN HUMIDITY........65-75 PERCENT.  
24 HR TREND......8 PERCENT DRIER.  
20-FOOT WINDS.......NORTH WINDS 5 TO 10 MPH.  
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED  
FIRE GROWTH.  
MIXING HEIGHT.......4210-4710 FT AGL.  
TRANSPORT WINDS.....NORTH AROUND 15 MPH.  
SMOKE DISPERSAL.....EXCELLENT (690).  
PCPN AMOUNT.........0.06-0.10 IN.  
 

 
 
MIZ063-068>070-075-076-082-083-162000-  
ST CLAIR-LIVINGSTON-OAKLAND-MACOMB-WASHTENAW-WAYNE-LENAWEE-MONROE-  
INCLUDING THE CITIES OF PORT HURON-HOWELL-PONTIAC-WARREN-ANN  
ARBOR-DETROIT-ADRIAN-MONROE  
305 AM EDT THU AUG 16 2018  
   
TODAY
 
 
SKY/WEATHER.........PARTLY CLOUDY (60-70 PERCENT) UNTIL 4 AM THEN  
MOSTLY CLOUDY (75-85 PERCENT). CHANCE OF  
SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS.  
CHANCE OF PRECIPITATION 70 PERCENT.  
MAX TEMPERATURE.....76-81.  
24 HR TREND......7 DEGREES COOLER.  
MIN HUMIDITY........70-80 PERCENT.  
24 HR TREND......28 PERCENT WETTER.  
20-FOOT WINDS.......SOUTH WINDS 5 TO 10 MPH.  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
MIXING HEIGHT.......2990-3490 FT AGL.  
TRANSPORT WINDS.....SOUTH 10 TO 15 MPH.  
SMOKE DISPERSAL.....GOOD (590).  
PCPN AMOUNT.........0.26-0.50 IN.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY (80-90 PERCENT). A SLIGHT CHANCE  
OF THUNDERSTORMS UNTIL 8 PM. CHANCE OF SHOWERS  
UNTIL 2 AM THEN A SLIGHT CHANCE OF SHOWERS.  
CHANCE OF PRECIPITATION 60 PERCENT.  
MIN TEMPERATURE.....66-71.  
24 HR TREND......1 DEGREE WARMER.  
MAX HUMIDITY........94-100 PERCENT.  
24 HR TREND......4 PERCENT WETTER.  
20-FOOT WINDS.......SOUTH WINDS 5 TO 10 MPH BECOMING WEST AFTER  
MIDNIGHT.  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
MIXING HEIGHT.......200-400 FT AGL.  
TRANSPORT WINDS.....SOUTHWEST 5 TO 10 MPH BECOMING WEST AFTER  
MIDNIGHT.  
SMOKE DISPERSAL.....POOR (0).  
PCPN AMOUNT.........0.26-0.50 IN.  
   
FRIDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY (75-85 PERCENT). A SLIGHT CHANCE  
OF SHOWERS UNTIL 8 AM THEN CHANCE OF SHOWERS.  
CHANCE OF THUNDERSTORMS AFTER 2 PM. CHANCE OF  
PRECIPITATION 50 PERCENT.  
MAX TEMPERATURE.....AROUND 81.  
24 HR TREND......2 DEGREES WARMER.  
MIN HUMIDITY........64-74 PERCENT.  
24 HR TREND......12 PERCENT DRIER.  
20-FOOT WINDS.......NORTHWEST WINDS 5 TO 10 MPH.  
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME  
DOMINATED FIRE GROWTH.  
MIXING HEIGHT.......5200-5700 FT AGL.  
TRANSPORT WINDS.....NORTH 5 TO 10 MPH.  
SMOKE DISPERSAL.....EXCELLENT (700).  
PCPN AMOUNT.........0.26-0.50 IN.  
 

 
 
   
FORECAST DAYS 3 THROUGH 7
 
 
   
SATURDAY
 
MOSTLY CLEAR. CHANCE OF SHOWERS AND THUNDERSTORMS. LOWS  
IN THE LOWER 60S. HIGHS IN THE LOWER 80S. NORTH WINDS AROUND 5 MPH.    
SUNDAY
 
MOSTLY CLEAR. LOWS AROUND 60. HIGHS IN THE LOWER 80S. EAST  
WINDS AROUND 5 MPH.    
MONDAY
 
MOSTLY CLEAR. LOWS IN THE LOWER 60S. HIGHS IN THE LOWER  
80S. SOUTHEAST WINDS AROUND 5 MPH.    
TUESDAY
 
MOSTLY CLOUDY WITH CHANCE OF SHOWERS AND A SLIGHT CHANCE  
OF THUNDERSTORMS. LOWS IN THE MID 60S. HIGHS IN THE UPPER 70S.    
WEDNESDAY
 
PARTLY CLOUDY. CHANCE OF SHOWERS AND A SLIGHT CHANCE OF  
THUNDERSTORMS. LOWS IN THE UPPER 50S. HIGHS IN THE MID 70S.  
 

 
 
IRL  
 
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