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Spot Forecast
Issued by NWS Grand Rapids, MI

000
FNUS73 KGRR 160956
FWSGRR

Spot Forecast for Hammer Wolf...USFS
National Weather Service Grand Rapids MI
556 AM EDT Tue Apr 16 2024

Forecast is based on ignition time of 0900 EDT on April 16.
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...We`ll see sunshine this morning. However,
strengthening low pressure over the Plains will move east and
we`ll see winds increase from the east today and become gusty.

.TODAY...

Sky/weather.........Mostly sunny (35-45 percent).
Temperature.........43 at ignition...Max 68.
RH..................60 percent at ignition...Min 23 percent.
Wind (20 ft)........Winds east at 10 mph at ignition...otherwise
                    East winds 8 to 16 mph.
Mixing height.......1200 ft AGL at ignition...otherwise 3300 ft
                    AGL.
Mixing winds........East 10 to 18 mph increasing to around 30 mph.
Smoke dispersal.....180 /fair/ at ignition. Max...800 /excellent/.
Haines Index........4 or low potential for large plume dominated
                    fire growth at ignition...max 5.

TIME (EDT)      9 AM   11 AM  1 PM   3 PM   5 PM   7 PM
Sky (%).........25     17     29     30     42     60
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........
Temp............43     55     63     66     68     64
RH..............60     40     29     24     23     27
20 ft wind......E 10   E 10   E 12   E 13   E 14   E 16
20 ft wind gust.14     16     17     20     22     24
Mix hgt (ft)....1200   2400   3000   3300   3300   2600
Mixing wind.....E 15   E 17   E 18   E 20   SE 24  E 30
Haines index....4      4      4      5      5      5
Smoke disprsl...180    410    560    650    790    790

.TONIGHT...

Sky/weather.........Mostly cloudy (75-85 percent). Slight chance of
                    thunderstorms in the evening. Rain showers
                    through the night. Chance of thunderstorms
                    overnight.
Temperature.........Min 46.
RH..................Max 83 percent.
Wind (20 ft)........Breezy. Southeast winds 20 to 26 mph with gusts
                    to around 37 mph. Gusty and erratic winds
                    expected near thunderstorms through about 2 am.
                    Gusty and erratic winds expected near
                    thunderstorms overnight. Gusty and erratic
                    winds expected near thunderstorms toward
                    daybreak.
Mixing height.......1000 ft AGL.
Mixing winds........Southeast 26 to 32 mph.
Smoke dispersal.....380 (good) early in the evening decreasing to
                    260 (fair) late in the night.
Haines Index........2 to 3 or very low potential for large plume
                    dominated fire growth.

$$
Forecaster...Felver
Requested by...Stearns
Type of request...PRESCRIBED
.TAG 2411067.0/GRR
.DELDT 04/16/24
.FormatterVersion 2.0.0
.EMAIL joseph.raspotnik@usda.gov