Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Detroit/Pontiac, MI
Issued by NWS Detroit/Pontiac, MI
855 FNUS53 KDTX 201921 FWFDTX Fire Weather Planning Forecast for Southeast Michigan National Weather Service Detroit/Pontiac MI 321 PM EDT Fri Sep 20 2024 .DISCUSSION...Scattered light showers are possible this afternoon and early tonight head of a cold front. Dry and warm conditions are likely again Saturday with westerly winds and brief high pressure influence. MIZ047-048-053-060-061-211415- Midland-Bay-Saginaw-Shiawassee-Genesee- Including the cities of Midland-Bay City-Saginaw-Owosso-Flint 321 PM EDT Fri Sep 20 2024 .REST OF THE AFTERNOON... Sky/weather.........Mostly cloudy (60-70 percent). Patchy fog until 11 am. Chance of showers after 11 am. Chance of thunderstorms after 2 pm. Chance of precipitation 40 percent. Max temperature.....78-84. 24 hr trend......1 degree warmer. Min humidity........46-56 percent. 24 hr trend......5 percent wetter. 20-foot winds.......South 5 to 10 mph. Haines Index........5 or moderate potential for large plume dominated fire growth. Mixing height.......4860-5360 ft agl. Transport winds.....South 10 to 15 mph. Smoke dispersal.....Excellent (738). Pcpn amount.........0.01-0.05 in. .TONIGHT... Sky/weather.........Mostly cloudy (60-70 percent) until 2 am, then partly cloudy (50-60 percent). Chance of showers and thunderstorms until 11 pm. Slight chance of showers and thunderstorms after 11 pm until 2 am. Areas of fog until 5 am. Chance of precipitation 30 percent. Min temperature.....58-62. 24 hr trend......1 degree warmer. Max humidity........95-100 percent. 24 hr trend......3 percent wetter. 20-foot winds.......South around 5 mph becoming west after midnight. Haines Index........4 or low potential for large plume dominated fire growth. Mixing height.......780-980 ft agl. Transport winds.....Southwest around 5 mph becoming west after midnight. Smoke dispersal.....Poor (13). Pcpn amount.........0.01-0.05 in. .SATURDAY... Sky/weather.........Partly cloudy (25-35 percent). Max temperature.....78-84. 24 hr trend......Unchanged. Min humidity........41-51 percent. 24 hr trend......3 percent drier. 20-foot winds.......West 5 to 10 mph becoming northwest early in the afternoon. Haines Index........5 or moderate potential for large plume dominated fire growth. Mixing height.......4670-5170 ft agl. Transport winds.....Northwest 5 to 10 mph. Smoke dispersal.....Good (460). Pcpn amount.........None. .SATURDAY NIGHT... Sky/weather.........Partly cloudy (30-40 percent). Min temperature.....56-60. 24 hr trend......2 degrees cooler. Max humidity........88-98 percent. 24 hr trend......4 percent drier. 20-foot winds.......East around 5 mph early in the evening becoming light, then becoming south around 5 mph after midnight. Haines Index........5 or moderate potential for large plume dominated fire growth. Mixing height.......540-740 ft agl. Transport winds.....South 5 to 10 mph. Smoke dispersal.....Poor (8). Pcpn amount.........None. $$ MIZ049-054-055-062-211415- Huron-Tuscola-Sanilac-Lapeer- Including the cities of Bad Axe-Caro-Sandusky-Lapeer 321 PM EDT Fri Sep 20 2024 .REST OF THE AFTERNOON... Sky/weather.........Mostly cloudy (55-65 percent). Patchy fog until 11 am. Chance of showers after 11 am. Slight chance of thunderstorms after 2 pm until 5 pm, then chance of thunderstorms. Chance of precipitation 30 percent. Max temperature.....76-82. 24 hr trend......Unchanged. Min humidity........47-57 percent. 24 hr trend......5 percent wetter. 20-foot winds.......South 5 to 10 mph. Haines Index........5 or moderate potential for large plume dominated fire growth. Mixing height.......4090-4590 ft agl. Transport winds.....South 10 to 15 mph. Smoke dispersal.....Good (522). Pcpn amount.........None. .TONIGHT... Sky/weather.........Mostly cloudy (70-80 percent) until 2 am, then partly cloudy (50-60 percent). Areas of fog until 5 am. Chance of showers and thunderstorms until 2 am. Slight chance of thunderstorms after 2 am until 5 am. Slight chance of showers after 2 am. Chance of precipitation 30 percent. Min temperature.....Around 60. 24 hr trend......3 degrees warmer. Max humidity........93-100 percent. 24 hr trend......Unchanged. 20-foot winds.......South 5 to 10 mph becoming southwest after midnight. Haines Index........4 or low potential for large plume dominated fire growth. Mixing height.......780-980 ft agl. Transport winds.....South around 10 mph becoming west after midnight. Smoke dispersal.....Poor (8). Pcpn amount.........0.06-0.10 in. .SATURDAY... Sky/weather.........Partly cloudy (30-40 percent). Max temperature.....76-82. 24 hr trend......Unchanged. Min humidity........48-58 percent. 24 hr trend......2 percent drier. 20-foot winds.......West 5 to 10 mph becoming north early in the afternoon. Haines Index........5 or moderate potential for large plume dominated fire growth. Mixing height.......4200-4700 ft agl. Transport winds.....Northwest 5 to 10 mph. Smoke dispersal.....Good (375). Pcpn amount.........None. .SATURDAY NIGHT... Sky/weather.........Partly cloudy (30-40 percent). Min temperature.....56-60. 24 hr trend......3 degrees cooler. Max humidity........94-100 percent. 24 hr trend......1 percent wetter. 20-foot winds.......East around 5 mph early in the evening becoming light, then becoming south around 5 mph after midnight. Haines Index........5 or moderate potential for large plume dominated fire growth. Mixing height.......560-760 ft agl. Transport winds.....Southeast around 5 mph becoming south after midnight. Smoke dispersal.....Poor (5). Pcpn amount.........None. $$ MIZ063-068>070-075-076-082-083-211415- St Clair-Livingston-Oakland-Macomb-Washtenaw-Wayne-Lenawee-Monroe- Including the cities of Port Huron-Howell-Pontiac-Warren-Ann Arbor-Detroit-Adrian-Monroe 321 PM EDT Fri Sep 20 2024 .REST OF THE AFTERNOON... Sky/weather.........Partly cloudy (45-55 percent). Areas of fog until 11 am. Chance of showers after 11 am. Slight chance of thunderstorms after 5 pm. Chance of precipitation 30 percent. Max temperature.....82-86. 24 hr trend......Unchanged. Min humidity........40-50 percent. 24 hr trend......3 percent drier. 20-foot winds.......Southeast 5 to 10 mph. Haines Index........5 or moderate potential for large plume dominated fire growth. Mixing height.......5900-6400 ft agl. Transport winds.....South 5 to 10 mph becoming around 10 mph early in the afternoon. Smoke dispersal.....Excellent (640). Pcpn amount.........0.01-0.05 in. .TONIGHT... Sky/weather.........Mostly cloudy (65-75 percent) until 2 am, then partly cloudy (50-60 percent). Areas of fog until 5 am. Chance of showers and thunderstorms until 11 pm. Slight chance of showers and thunderstorms after 11 pm until 5 am. Chance of precipitation 30 percent. Min temperature.....58-64. 24 hr trend......4 degrees warmer. Max humidity........92-100 percent. 24 hr trend......2 percent drier. 20-foot winds.......Southeast around 5 mph becoming south in the late evening and early morning, then becoming west after midnight. Haines Index........4 or low potential for large plume dominated fire growth. Mixing height.......740-940 ft agl. Transport winds.....Southeast around 10 mph becoming northwest after midnight. Smoke dispersal.....Poor (10). Pcpn amount.........0.01-0.05 in. .SATURDAY... Sky/weather.........Partly cloudy (30-40 percent). Max temperature.....80-86. 24 hr trend......3 degrees warmer. Min humidity........39-49 percent. 24 hr trend......Unchanged. 20-foot winds.......Northwest 5 to 10 mph. Haines Index........5 or moderate potential for large plume dominated fire growth. Mixing height.......4720-5220 ft agl. Transport winds.....Northwest around 10 mph. Smoke dispersal.....Good (501). Pcpn amount.........None. .SATURDAY NIGHT... Sky/weather.........Partly cloudy (30-40 percent). Min temperature.....56-62. 24 hr trend......3 degrees cooler. Max humidity........90-100 percent. 24 hr trend......2 percent wetter. 20-foot winds.......Light winds becoming southeast up to 5 mph in the late evening and overnight. Haines Index........5 or moderate potential for large plume dominated fire growth. Mixing height.......480-680 ft agl. Transport winds.....Northeast around 5 mph becoming southeast in the late evening and overnight. Smoke dispersal.....Poor (4). Pcpn amount.........None. $$ .FORECAST DAYS 3 THROUGH 7... .SUNDAY...Cloudy with showers and slight chance of thunderstorms. Lows in the upper 50s. Highs in the lower 80s. South winds around 5 mph. .MONDAY...Not as warm. Cloudy with chance of showers. Lows in the upper 50s. Highs in the lower 70s. North winds around 5 mph. .TUESDAY...Mostly cloudy with chance of showers and thunderstorms. Lows in the mid 50s. Highs in the lower 70s. Southwest winds around 5 mph. .WEDNESDAY...Mostly cloudy. Lows in the mid 50s. Highs in the lower 70s. .THURSDAY...Partly cloudy. Lows in the mid 50s. Highs in the lower 70s. $$ CB