Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Detroit/Pontiac, MI

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FNUS53 KDTX 202008
FWFDTX

Fire Weather Planning Forecast for Southeast Michigan
National Weather Service Detroit/Pontiac MI
408 PM EDT Thu Jul 20 2017

.DISCUSSION...A front stalled over southern Michigan will slowly push
south and east tonight. Isolated thunderstorms will be possible this
afternoon , mainly south of M-59, in the warm and humid air along
and south of the front. High pressure will then temporarily develop
over the region on Friday and will bring slightly drier conditions
with minimum RH values ranging from 45 to 50 percent. The next low
pressure system is projected to approach the region on Friday night
and bring periods of rain and thunderstorms for much of the weekend.

MIZ047-048-053-060-061-211215-
Midland-Bay-Saginaw-Shiawassee-Genesee-
Including the cities of Midland-Bay City-Saginaw-Owosso-Flint
408 PM EDT Thu Jul 20 2017

.TONIGHT...

Sky/weather.........Partly cloudy (40-50 percent) until 8 pm then
                    mostly clear (20-30 percent).
Min temperature.....59-64.
   24 hr trend......10 degrees cooler.
Max humidity........98 percent.
   24 hr trend......3 percent wetter.
20-foot winds.......Northwest winds 5 to 10 mph.
Haines Index........4 or low potential for large plume dominated
                    fire growth.
Mixing height.......100-300 ft agl.
Transport winds.....West around 15 mph becoming northwest around 5
                    mph in the late evening and overnight.
Smoke dispersal.....Poor (0).
Pcpn amount.........None.

.FRIDAY...
Sky/weather.........Mostly sunny (30-40 percent).
Max temperature.....82-87.
   24 hr trend......4 degrees warmer.
Min humidity........42-49 percent.
   24 hr trend......21 percent drier.
20-foot winds.......North winds around 5 mph becoming northeast in
                    the late morning and early afternoon then
                    becoming southwest early in the afternoon.
Haines Index........6 or high potential for large plume dominated
                    fire growth.
Mixing height.......3680-4180 ft agl.
Transport winds.....North around 5 mph becoming southwest early in
                    the afternoon.
Smoke dispersal.....Good (400).
Pcpn amount.........None.

.FRIDAY NIGHT...
Sky/weather.........Partly cloudy (60-70 percent) until 2 am then
                    mostly cloudy (80-90 percent). A slight chance
                    of showers after 8 pm until 2 am. A slight
                    chance of thunderstorms after 8 pm. Showers
                    likely after 2 am. Chance of precipitation 70
                    percent.
Min temperature.....64-69.
   24 hr trend......6 degrees warmer.
Max humidity........94-99 percent.
   24 hr trend......1 percent drier.
20-foot winds.......South winds 5 to 10 mph.
Haines Index........5 or moderate potential for large plume
                    dominated fire growth.
Mixing height.......200-400 ft agl.
Transport winds.....South around 5 mph becoming southeast after
                    midnight.
Smoke dispersal.....Poor (0).
Pcpn amount.........0.26-0.50 in.

.SATURDAY...
Sky/weather.........Mostly cloudy (80-90 percent). Showers likely
                    and chance of thunderstorms. Chance of
                    precipitation 70 percent.
Max temperature.....76-81.
   24 hr trend......6 degrees cooler.
Min humidity........71 percent.
   24 hr trend......27 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.......3060-3560 ft agl.
Transport winds.....Southeast around 20 mph becoming east around 10
                    mph in the late morning and early
                    afternoon then becoming northeast early in
                    the afternoon.
Smoke dispersal.....Good (420).
Pcpn amount.........0.76-1.00 in.


$$

MIZ049-054-055-062-211215-
Huron-Tuscola-Sanilac-Lapeer-
Including the cities of Bad Axe-Caro-Sandusky-Lapeer
408 PM EDT Thu Jul 20 2017

.TONIGHT...

Sky/weather.........Partly cloudy (35-45 percent) until 8 pm then
                    mostly clear (15-25 percent).
Min temperature.....59-64.
   24 hr trend......3 degrees cooler.
Max humidity........98 percent.
   24 hr trend......3 percent wetter.
20-foot winds.......West winds 5 to 10 mph becoming northwest after
                    midnight.
Haines Index........3 or very low potential for large plume
                    dominated fire growth.
Mixing height.......100-300 ft agl.
Transport winds.....West around 15 mph becoming northwest around 5
                    mph in the late evening and overnight.
Smoke dispersal.....Poor (0).
Pcpn amount.........None.

.FRIDAY...
Sky/weather.........Mostly sunny (25-35 percent).
Max temperature.....80-85.
   24 hr trend......3 degrees warmer.
Min humidity........43-53 percent.
   24 hr trend......22 percent drier.
20-foot winds.......North winds 5 to 10 mph becoming northwest
                    early in the afternoon.
Haines Index........5 or moderate potential for large plume
                    dominated fire growth.
Mixing height.......3640-4140 ft agl.
Transport winds.....Northwest 5 to 10 mph becoming west early in
                    the afternoon.
Smoke dispersal.....Good (360).
Pcpn amount.........None.

.FRIDAY NIGHT...
Sky/weather.........Partly cloudy (55-65 percent) until 4 am then
                    mostly cloudy (75-85 percent). A slight chance
                    of until 2 am. A slight chance of thunderstorms
                    after 8 pm. Chance of showers after 2 am.
                    Chance of precipitation 50 percent.
Min temperature.....62-67.
   24 hr trend......4 degrees warmer.
Max humidity........95 percent.
   24 hr trend......2 percent drier.
20-foot winds.......South winds 5 to 10 mph.
Haines Index........6 or high potential for large plume dominated
                    fire growth.
Mixing height.......180-380 ft agl.
Transport winds.....South 5 to 10 mph.
Smoke dispersal.....Poor (0).
Pcpn amount.........0.11-0.25 in.

.SATURDAY...
Sky/weather.........Mostly cloudy (85-95 percent). A slight chance
                    of thunderstorms until 8 am. Chance of showers.
                    chance of thunderstorms after 8 am. Chance of
                    precipitation 70 percent.
Max temperature.....75-80.
   24 hr trend......7 degrees cooler.
Min humidity........70-80 percent.
   24 hr trend......27 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.......1450-1950 ft agl.
Transport winds.....Southeast around 20 mph becoming east early in
                    the afternoon.
Smoke dispersal.....Good (300).
Pcpn amount.........0.51-0.75 in.


$$

MIZ063-068>070-075-076-082-083-211215-
St Clair-Livingston-Oakland-Macomb-Washtenaw-Wayne-Lenawee-Monroe-
Including the cities of Port Huron-Howell-Pontiac-Warren-Ann
Arbor-Detroit-Adrian-Monroe
408 PM EDT Thu Jul 20 2017

.TONIGHT...

Sky/weather.........Partly cloudy (35-45 percent). A slight chance
                    of. Chance of precipitation 30 percent.
Min temperature.....62-67.
   24 hr trend......9 degrees cooler.
Max humidity........98 percent.
   24 hr trend......1 percent wetter.
20-foot winds.......Northwest winds 5 to 10 mph.
Haines Index........4 or low potential for large plume dominated
                    fire growth.
Mixing height.......320-520 ft agl.
Transport winds.....Northwest 5 to 10 mph.
Smoke dispersal.....Poor (0).
Pcpn amount.........0.01-0.05 in.

.FRIDAY...
Sky/weather.........Mostly sunny (30-40 percent).
Max temperature.....84-89.
   24 hr trend......3 degrees warmer.
Min humidity........43-53 percent.
   24 hr trend......19 percent drier.
20-foot winds.......Northeast winds 5 to 10 mph becoming southwest
                    early in the afternoon.
Haines Index........5 or moderate potential for large plume
                    dominated fire growth.
Mixing height.......4520-5020 ft agl.
Transport winds.....North around 5 mph becoming southwest early in
                    the afternoon.
Smoke dispersal.....Good (330).
Pcpn amount.........None.

.FRIDAY NIGHT...
Sky/weather.........Partly cloudy (55-65 percent) until 2 am then
                    mostly cloudy (75-85 percent). Chance of
                    showers after 8 pm until 2 am. A slight chance
                    of thunderstorms after 8 pm. Showers likely
                    after 2 am. Chance of precipitation 70 percent.
Min temperature.....65-70.
   24 hr trend......5 degrees warmer.
Max humidity........89-98 percent.
   24 hr trend......3 percent drier.
20-foot winds.......Southeast winds 5 to 10 mph.
Haines Index........6 or high potential for large plume dominated
                    fire growth.
Mixing height.......360-560 ft agl.
Transport winds.....Southeast around 10 mph.
Smoke dispersal.....Poor (0).
Pcpn amount.........0.26-0.50 in.

.SATURDAY...
Sky/weather.........Mostly cloudy (80-90 percent). Showers likely
                    and chance of thunderstorms. Chance of
                    precipitation 70 percent.
Max temperature.....78-83.
   24 hr trend......5 degrees cooler.
Min humidity........66-74 percent.
   24 hr trend......25 percent wetter.
20-foot winds.......South winds 5 to 10 mph becoming southwest
                    early in the afternoon.
Haines Index........3 or very low potential for large plume
                    dominated fire growth.
Mixing height.......3870-4370 ft agl.
Transport winds.....East around 10 mph becoming south around
                    20 mph in the late morning and early
                    afternoon then becoming northwest early in
                    the afternoon.
Smoke dispersal.....Excellent (1160).
Pcpn amount.........0.76-1.00 in.


$$


.FORECAST DAYS 3 THROUGH 7...

.SUNDAY...Mostly cloudy. Chance of showers and thunderstorms. Lows
in the upper 60s. Highs in the lower 80s. Southwest winds around
5 mph.
.MONDAY...Partly cloudy. Chance of showers and thunderstorms. Lows
in the lower 60s. Highs in the mid 70s. North winds around 10 mph.
.TUESDAY...Mostly clear. Lows in the upper 50s. Highs in the upper
70s. Northeast winds around 5 mph.
.WEDNESDAY...Mostly clear. Lows in the upper 50s. Highs around 80.
.THURSDAY...Partly cloudy. Chance of showers and thunderstorms. Lows
in the lower 60s. Highs in the lower 80s.

$$

CB


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