761
FNUS73 KGRR 180757
FWSGRR

Spot Forecast for Bass Rx Burn...MIDNR
National Weather Service Grand Rapids MI
357 AM EDT Sat May 18 2024

Forecast is based on ignition time of 1200 EDT on May 18.
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...
It will be mostly sunny and very warm today with high temperatures
reaching the lower 80s with minimum relative humidity values
of around 45 percent. Winds will be rather light out of the
southwest at under 10 mph.


.REST OF TODAY...

Sky/weather.........Sunny (10-20 percent).
Temperature.........76 at ignition...Max 81.
RH..................56 percent at ignition...Min 45 percent.
Wind (20 ft)........Winds southwest at 6 mph at
                    ignition...otherwise Southwest winds 5 to 7
                    mph.
Mixing height.......4200 ft AGL at ignition...otherwise 5800 ft
                    AGL.
Mixing winds........Southwest 7 to 9 mph.
Smoke dispersal.....380 /good/ at ignition. Max...500 /good/.
Haines Index........4 or low potential for large plume dominated
                    fire growth at ignition...max 5.

TIME (EDT)      NOON   2 PM   4 PM   6 PM   8 PM   10 PM
Sky (%).........9      15     16     11     9      8
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........
Temp............76     79     80     80     77     70
RH..............56     49     45     45     50     63
20 ft wind......SW 6   W 7    W 6    SW 5   S 3    S 3
20 ft wind gust.8      9      9      8      6      5
Mix hgt (ft)....4200   5800   5100   3600   600    400
Mixing wind.....SW 9   SW 8   SW 8   SW 8   S 5    S 6
Haines index....4      5      5      5      4      4
Smoke disprsl...380    470    410    290    30     20

.TONIGHT...

Sky/weather.........Partly cloudy (25-35 percent).
Temperature.........Min 62.
RH..................Max 81 percent.
Wind (20 ft)........Light winds becoming south around 5 mph late at
                    night, then shifting to the southwest 5 to 6
                    mph toward daybreak.
Mixing height.......400 ft AGL.
Mixing winds........South 5 to 10 mph shifting to the west around 9
                    mph toward daybreak.
Smoke dispersal.....20 (poor).
Haines Index........3 to 4 or very low to low potential for large
                    plume dominated fire growth.

.SUNDAY...

Sky/weather.........Mostly sunny (25-35 percent).
Temperature.........Max 80.
RH..................Min 47 percent.
Wind (20 ft)........West winds around 5 mph early in the morning
                    becoming light, then becoming west 5 to 6 mph
                    becoming light.
Mixing height.......3000 ft AGL.
Mixing winds........Northwest 7 to 12 mph.
Smoke dispersal.....50 (poor) early in the morning increasing to
                    240 (fair) in the afternoon.
Haines Index........4 to 5 or low to moderate potential for large
                    plume dominated fire growth.

$$
Forecaster...Laurens
Requested by...Tom Barnes
Type of request...PRESCRIBED
.TAG 2414536.0/GRR
.DELDT 05/18/24
.FormatterVersion 2.0.0
.EMAIL barnest2@michigan.gov