731
FNUS73 KGRR 090905
FWSGRR

Spot Forecast for Brohman 1...USFS
National Weather Service Grand Rapids MI
505 AM EDT Fri May 9 2025

Forecast is based on ignition time of 0700 EDT on May 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...
Sunny skies, light winds, and dry air today. There is a chance of
RH dipping below 20 percent during the early-mid afternoon. Winds
generally from the northeast or north this morning becoming more
from the northwest during the afternoon.

.TODAY...

Sky/weather.........Sunny (0-10 percent).
Temperature.........Max 65.
RH..................Min 21 percent.
Wind (20 ft)........Light north winds becoming northwest 6 mph in
                    the afternoon.
Mixing height.......4700 ft AGL.
Mixing winds........Northeast 5 to 7 mph shifting to the northwest
                    7 to 9 mph in the afternoon.
Smoke dispersal.....20 (poor) early in the morning increasing to
                    340 (good) in the afternoon.

TIME (EDT)      8 AM   10 AM  NOON   2 PM   4 PM   6 PM
Sky (%).........8      2      3      1      2      1
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........
Temp............40     52     58     63     64     63
RH..............59     36     27     21     22     23
20 ft wind......NE 2   N 2    N 2    NW 5   NW 6   W 6
20 ft wind gust.6      7      10     13     14     14
Mix hgt (ft)....300    2400   3900   4600   4700   3500
Mixing wind.....NE 5   NE 5   N 7    N 7    NW 7   NW 8
Smoke disprsl...20     110    270    320    330    280

.TONIGHT...

Sky/weather.........Mostly clear (15-25 percent).
Temperature.........Min 42.
RH..................Max 68 percent.
Wind (20 ft)........West winds around 5 mph in the evening becoming
                    light.
Mixing height.......300 ft AGL.
Mixing winds........West 7 to 9 mph shifting to the southwest 10 to
                    12 mph overnight.
Smoke dispersal.....20 (poor).

.SATURDAY...

Sky/weather.........Sunny (10-20 percent). Slight chance of rain
                    showers until midday.
Temperature.........Max 72.
RH..................Min 28 percent.
Wind (20 ft)........Light winds becoming northwest 5 to 7 mph in
                    the morning, then shifting to the north 8 to 10
                    mph with gusts to around 21 mph.
Mixing height.......4400 ft AGL.
Mixing winds........Northwest 10 to 13 mph shifting to the north 13
                    to 16 mph.
Smoke dispersal.....40 (poor) early in the morning increasing to
                    710 (excellent) in the afternoon.

$$
Forecaster...Scholten
Requested by...Joe Raspotnik
Type of request...PRESCRIBED
.TAG 2513558.0/GRR
.DELDT 05/09/25
.FormatterVersion 2.0.0
.EMAIL joseph.raspotnik@usda.gov,kory.borgman@usda.gov