727
FNUS73 KGRR 090923
FWSGRR

Spot Forecast for Boreman Ranch...USFS
National Weather Service Grand Rapids MI
523 AM EDT Fri Oct 9 2026

Forecast is based on ignition time of 1000 EDT on October 09.
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...
Patchy frost and patchy fog this morning. An inversion will persist,
along with any patchy fog, until around 10 AM before mixing out.
Winds will be fairly light today with west to northwest flow around 5 mph.
Winds will shift behind the warm front tonight. There is a slight chance for
showers this evening but if rain does occur it will be very light.

.REST OF TODAY...

Sky/weather.........Sunny (15-25 percent).
Temperature.........52 at ignition...Max 68.
RH..................83 percent at ignition...Min 44 percent.
Wind (20 ft)........Winds west at 1 mph at ignition...otherwise
                    Light winds becoming west around 5 mph early in
                    the afternoon, then becoming light late in the
                    afternoon.
Mixing height.......600 ft AGL at ignition...otherwise 4900 ft AGL.
Mixing winds........West 6 to 9 mph.
Smoke dispersal.....30 /poor/ at ignition. Max...450 /good/.

TIME (EDT)      10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM 7PM 8PM 9PM
Sky (%).........13  18  11  13  13  19  30  19  9   9   16  19
Weather cov.....
Weather type....
Tstm cov........
Temp............52  58  62  64  66  67  67  68  66  64  58  55
RH..............83  69  56  52  47  45  45  44  48  52  62  69
20 FT wind dir..W   NW  W   W   W   W   SW  SW  S   SE  SE  E
20 FT wind spd..1   2   3   3   5   3   3   3   2   2   3   3
20 FT wind gust.6   7   9   12  13  12  12  10  9   8   8   10
Mix hgt (kft)...0.6 1.5 3.5 4.4 4.9 4.8 4.7 4.3 3.0 0.6 0.4 0.4
Mixing wind dir.W   W   W   W   W   W   W   SW  SW  S   SE  SE
Mixing wind spd.6   6   8   9   9   8   8   7   6   6   7   8
Smoke disprsl...30  90  280 400 450 380 380 300 170 40  20  30

.TONIGHT...

Sky/weather.........Mostly clear (15-25 percent) then becoming
                    mostly cloudy (65-75 percent) then becoming
                    partly cloudy (35-45 percent) then becoming
                    mostly cloudy (55-65 percent). Slight chance of
                    rain showers late in the evening.
Temperature.........Min 53.
RH..................Max 69 percent.
Wind (20 ft)........Light winds becoming southeast 5 to 8 mph with
                    gusts to around 21 mph in the late evening and
                    overnight.
Mixing height.......400 ft AGL.
Mixing winds........South around 6 mph shifting to the southeast 7
                    to 14 mph early in the evening.
Smoke dispersal.....170 (fair) early in the evening decreasing to
                    20 (poor) late in the night.

.SATURDAY...

Sky/weather.........Mostly sunny (25-35 percent).
Temperature.........Max 76.
RH..................Min 46 percent.
Wind (20 ft)........Southeast winds 8 to 10 mph shifting to the
                    south 9 to 10 mph in the afternoon. Gusts up to
                    24 mph.
Mixing height.......2700 ft AGL.
Mixing winds........South 13 to 21 mph.
Smoke dispersal.....60 (poor) early in the morning increasing to
                    530 (good) in the afternoon.

$$
Forecaster...Ceru
Requested by...Brandon Kelley
Type of request...PRESCRIBED
.TAG 2623455.0/GRR
.DELDT 10/09/26
.FormatterVersion 2.0.0
.EMAIL brandon.kelley@usda.gov,Josh.nichols@usda.gov