308
FNUS73 KGRR 101119
FWSGRR

Spot Forecast for Baldwin Fuels 3...USFS
National Weather Service Grand Rapids MI
719 AM EDT Fri May 10 2024

Forecast is based on ignition time of 1000 EDT on May 10.
If conditions become unrepresentative, contact the National Weather
Service.

Please contact our office at (616) 949-5150, if you have questions
or concerns with this forecast.

.DISCUSSION...Light winds from the NW are likely at ignition time.
Dry conditions are expected today with partial cloud development
this afternoon.

.REST OF TODAY...

Sky/weather.........Mostly sunny (35-45 percent).
Temperature.........52 at ignition...Max 65.
RH..................71 percent at ignition...Min 39 percent.
Wind (20 ft)........Winds northwest at 5 mph at
                    ignition...otherwise West winds 5 to 10 mph
                    shifting to the southwest 9 to 10 mph late in
                    the day.
Mixing height.......1300 ft AGL at ignition...otherwise 6500 ft
                    AGL.
Mixing winds........West 6 to 15 mph increasing to 15 to 16 mph
                    late in the day.
Smoke dispersal.....80 /poor/ at ignition. Max...930 /excellent/.
Haines Index........4 or low potential for large plume dominated
                    fire growth at ignition...max 4.

TIME (EDT)      10 AM  NOON   2 PM   4 PM   6 PM   8 PM
Sky (%).........36     38     54     31     22     38
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........
Temp............52     59     61     63     63     60
RH..............71     55     46     41     39     46
20 ft wind......NW 5   W 8    W 10   W 10   W 10   SW 8
20 ft wind gust.7      13     14     15     15     12
Mix hgt (ft)....1300   5300   6500   6400   5800   1900
Mixing wind.....W 6    NW 10  W 12   W 13   W 16   W 12
Haines index....4      4      4      4      4      3
Smoke disprsl...80     550    750    810    930    220

.TONIGHT...

Sky/weather.........Partly cloudy (40-50 percent) then becoming
                    mostly cloudy (70-80 percent). Rain showers
                    likely.
Temperature.........Min 44.
RH..................Max 96 percent.
Wind (20 ft)........Southwest winds around 8 mph shifting to the
                    south around 10 mph through about 2 am, then
                    shifting to the west 7 to 9 mph late at night
                    increasing to 9 to 10 mph toward daybreak.
Mixing height.......500 ft AGL.
Mixing winds........Southwest 9 to 12 mph shifting to the west 8 to
                    16 mph.
Smoke dispersal.....220 (fair) early in the evening decreasing to
                    60 (poor) late in the night.
Haines Index........3 or very low potential for large plume
                    dominated fire growth.

$$
Forecaster...Hoving
Requested by...Stearns
Type of request...PRESCRIBED
.TAG 2413681.0/GRR
.DELDT 05/10/24
.FormatterVersion 2.0.0
.EMAIL brian.stearns@usda.gov