880
FNUS73 KGRR 060432
FWSGRR

Spot Forecast for Astor Road Pile Burn...USFS
National Weather Service Grand Rapids MI
1132 PM EST Tue Nov 5 2024

Forecast is based on ignition time of 1000 EST on November 06.
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...
Skies will be mostly cloudy Wednesday with just a slight chance of an
isolated light rain shower or sprinkle through midday. Winds will be
west at less than 10 mph.

.WEDNESDAY...

Sky/weather.........Mostly cloudy (70-80 percent). Slight chance of
                    rain showers through early afternoon.
Temperature.........50 at ignition...Max 55.
RH..................96 percent at ignition...Min 71 percent.
Wind (20 ft)........Winds west at 5 mph at ignition...otherwise
                    Northwest winds 5 to 8 mph shifting to the
                    north 5 to 6 mph late in the day.
Mixing height.......2000 ft AGL at ignition...otherwise 2500 ft
                    AGL.
Mixing winds........Northwest 10 to 12 mph.
Smoke dispersal.....200 /fair/ at ignition. Max...290 /fair/.
Haines Index........3 or very low potential for large plume
                    dominated fire growth at ignition...max 3.

TIME (EST)      10 AM  NOON   2 PM   4 PM   6 PM   8 PM
Sky (%).........90     86     82     64     69     71
Weather cov.....S CHC  S CHC
Weather type....RNSHWR RNSHWR NONE   NONE   NONE   NONE
Tstm cov........
Temp............50     54     55     54     52     45
RH..............96     80     72     71     74     96
20 ft wind......W 5    NW 8   NW 6   NW 6   N 5    N 2
20 ft wind gust.15     12     14     13     10     7
Mix hgt (ft)....2000   2200   2500   2400   2200   2300
Mixing wind.....NW 10  N 12   N 12   N 12   N 10   N 12
Haines index....3      3      3      3      3      3
Smoke disprsl...200    250    290    280    230    260

.WEDNESDAY NIGHT...

Sky/weather.........Mostly cloudy (60-70 percent) then becoming
                    partly cloudy (45-55 percent).
Temperature.........Min 31.
RH..................Max 100 percent.
Wind (20 ft)........Light winds.
Mixing height.......600 ft AGL.
Mixing winds........North 7 to 12 mph.
Smoke dispersal.....260 (fair) early in the evening decreasing to
                    40 (poor) late in the night.
Haines Index........3 to 4 or very low to low potential for large
                    plume dominated fire growth.

.THURSDAY...

Sky/weather.........Sunny (15-25 percent).
Temperature.........Max 55.
RH..................Min 57 percent.
Wind (20 ft)........Light winds becoming west 5 to 6 mph in the
                    afternoon, then becoming light in the evening.
Mixing height.......3500 ft AGL.
Mixing winds........Northwest 6 to 9 mph shifting to the west 9 to
                    10 mph late in the day.
Smoke dispersal.....40 (poor) early in the morning increasing to
                    320 (good) in the afternoon.
Haines Index........4 to 5 or low to moderate potential for large
                    plume dominated fire growth.

$$
Forecaster...Laurens
Requested by...Brandon Kelley
Type of request...PRESCRIBED
.TAG 2425851.0/GRR
.DELDT 11/06/24
.FormatterVersion 2.0.0
.EMAIL brandon.kelley@usda.gov