Suppression Forecast
Issued by NWS Grand Rapids, MI

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000
FNUS73 KGRR 241214
FWSGRR

FIRE WEATHER PLANNING FORECAST FOR TYNDALL 2...USFS
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
814 AM EDT THU APR 24 2014

FORECAST IS BASED ON IGNITION TIME OF 1100 EDT ON APRIL 24.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
LIGHT RAIN SHOWERS WILL BE MOVING TOWARD THE BURN LOCATION FROM
THE SOUTH THIS MORNING. PRIOR TO 1100...SPRINKLES WILL BE
POSSIBLE. AFTER 1100...THE CHANCE FOR SHOWERS INCREASES WITH A
GOOD CHANCE FOR ON AND OFF LIGHT RAIN AT THE BURN SITE FROM 1100
THROUGH THE REMAINDER OF THE DAY. RAIN AMOUNTS TODAY ARE EXPECTED
TO BE LIGHT...ON THE ORDER OF A FEW HUNDREDTHS OF A INCH. A BREAK
IN PRECIPITATION IS EXPECTED THIS EVENING AND EARLY TONIGHT
BEFORE HEAVIER RAIN IMPACTS THE BURN SITE OVERNIGHT AND EARLY
FRIDAY.

.TODAY...

SKY/WEATHER.........MOSTLY CLOUDY (75-85 PERCENT). RAIN
                    SHOWERS...ESPECIALLY AFTER 1100.
TEMPERATURE.........48 AT IGNITION...MAX 55.
RH..................52 PERCENT AT IGNITION...MIN 43 PERCENT.
WIND (20 FT)........WINDS SOUTHEAST AT 10 MPH AT
                    IGNITION...OTHERWISE SOUTHEAST WINDS 15 TO 20
                    MPH.
MIXING WINDS........SOUTHEAST 16 TO 24 MPH INCREASING TO 28 TO 33
                    MPH LATE IN THE DAY.
MIXING HEIGHT.......2900 FT AGL AT IGNITION...OTHERWISE 3700-4200
                    FT AGL.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH AT IGNITION...MAX 5.
SMOKE DISPERSAL.....200-600 (FAIR TO EXCELLENT) INCREASING TO
                    1200-1300 (EXCELLENT).

TIME (EDT)      11 AM  1 PM   3 PM   5 PM   7 PM
SKY (%).........78     82     81     76     77
WEATHER COV.....CHANCE CHANCE CHANCE CHANCE CHANCE
WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR
TEMP............48     49     55     53     52
RH..............52     45     43     43     44
20 FT WIND......SE 16  SE 17  SE 18  SE 18  SE 21
20 FT GUST......20     20     25     25     25
HAINES INDEX....4      4      4      4      5

.TONIGHT...

SKY/WEATHER.........MOSTLY CLOUDY (80-90 PERCENT). RAIN SHOWERS.
TEMPERATURE.........MIN 39.
RH..................MAX 81 PERCENT.
WIND (20 FT)........SOUTHEAST WINDS 10 TO 15 MPH.
MIXING WINDS........SOUTHEAST 28 TO 35 MPH DECREASING TO 12 TO 13
                    MPH.
MIXING HEIGHT.......3000-3500 FT AGL DECREASING TO 900-1400 FT AGL
                    AFTER MIDNIGHT.
HAINES INDEX........2 TO 5 OR OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH TO OR MODERATE POTENTIAL
                    FOR LARGE PLUME DOMINATED FIRE GROWTH.
SMOKE DISPERSAL.....900-1200 (EXCELLENT) DECREASING TO 100-200
                    (POOR TO FAIR).

$$
FORECASTER...MACZKO
REQUESTED BY...JOE RASPOTNIK
TYPE OF REQUEST...PRESCRIBED
.TAG 20140424.TYNDA.01/GRR













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