FNUS73 KGRR 181356
FWSGRR

FIRE WEATHER PLANNING FORECAST FOR GILBERT LAKE RX...USFS
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
956 AM EDT SAT APR 18 2009

FORECAST IS BASED ON IGNITION TIME OF 1000 EDT ON APRIL 18.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...TODAY WILL BE THE LAST WARM AND DRY DAY. A COLD
FRONT WILL DROP SOUTH FROM CANADA TONIGHT AND THE WINDS WILL SHIFT
FROM SOUTHWESTERLY TO EASTERLY. RAIN IS LIKELY ON SUNDAY AND
MONDAY... WITH COOLER TEMPERATURES AND HIGHER HUMIDITY LEVELS.

.TODAY...

SKY/WEATHER.........PARTLY SUNNY (50-60 PERCENT).
TEMPERATURE.........53 AT IGNITION...MAX 68.
RH..................47 PERCENT AT IGNITION...MIN 25 PERCENT.
WIND (20 FT)........WINDS SOUTHWEST AT 11 MPH AT
                    IGNITION...OTHERWISE SOUTHWEST WINDS 7 TO 12
                    MPH.
MIXING WINDS........SOUTHWEST 8 TO 15 MPH.
MIXING HEIGHT.......1200 FT AGL AT IGNITION...OTHERWISE 4600-5100
                    FT AGL DECREASING TO 2100 FT AGL TOWARD
                    EVENING.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH AT IGNITION...MAX 5.
SMOKE DISPERSAL.....FAIR /200 KNOT-FT/ AT IGNITION. MAX...GOOD /500
                    KNOT-FT/.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT). SLIGHT CHANCE OF
                    RAIN...THEN A CHANCE OF RAIN OVERNIGHT.
TEMPERATURE.........MIN 43.
RH..................MAX 86 PERCENT.
WIND (20 FT)........SOUTH WINDS 5 TO 10 MPH SHIFTING TO THE EAST 10
                    TO 15 MPH AFTER MIDNIGHT.
MIXING WINDS........SOUTH 5 TO 7 MPH SHIFTING TO THE EAST 2 TO 9
                    MPH...THEN INCREASING TO 14 TO 18 MPH TOWARD
                    DAYBREAK.
MIXING HEIGHT.......400-900 FT AGL.
HAINES INDEX........3 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.....POOR TO POOR (0-100 KNOT-FT).

.SUNDAY...

SKY/WEATHER.........CLOUDY (85-95 PERCENT). CHANCE OF RAIN UNTIL
                    MIDDAY...THEN RAIN LIKELY IN THE AFTERNOON.
TEMPERATURE.........MAX 55.
RH..................MIN 63 PERCENT.
WIND (20 FT)........EAST WINDS 13 TO 18 MPH.
MIXING WINDS........EAST 17 TO 25 MPH INCREASING TO AROUND 28 MPH
                    IN THE EVENING.
MIXING HEIGHT.......1200-1700 FT AGL.
HAINES INDEX........2 TO 3 OR OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
SMOKE DISPERSAL.....POOR TO GOOD (100-400 KNOT-FT).

$$
FORECASTER...MEADE
REQUESTED BY...KEVIN SHERRETZ
TYPE OF REQUEST...PRESCRIBED
.TAG 20090418.GILBE.01/GRR