FNUS73 KGRR 161152
FWSGRR

FIRE WEATHER PLANNING FORECAST FOR JACKSON RX...USFS
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
752 AM EDT WED SEP 16 2009

FORECAST IS BASED ON IGNITION TIME OF 1330 EDT ON SEPTEMBER 16.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...HIGH PRESSURE WILL BUILD IN THROUGH THE DAY TODAY. AN
EASTERLY FLOW WILL BRING COOLER TEMPERATURES IN ACROSS THE AREA. DRY
WEATHER CAN BE EXPECTED THROUGH THURSDAY NIGHT. THERE IS A CHANCE OF
SOME SPRINKLES FRIDAY AS A WEAKENING COLD FRONT MOVES THROUGH. MORE DRY
WEATHER IS THEN EXPECTED FOR AT LEAST THE FIRST HALF OF THE WEEKEND
IF NOT MORE.


.TODAY...

SKY/WEATHER.........MOSTLY SUNNY (30-40 PERCENT).
TEMPERATURE.........70 AT IGNITION...MAX 73.
RH..................45 PERCENT AT IGNITION...MIN 35 PERCENT.
WIND (20 FT)........WINDS NORTHEAST AT 12 MPH AT
                    IGNITION...OTHERWISE EAST WINDS 10 TO 15 MPH.
MIXING WINDS........NORTHEAST 7 TO 16 MPH SHIFTING TO THE EAST
                    AROUND 10 MPH LATE IN THE DAY.
MIXING HEIGHT.......1300-1800 FT AGL INCREASING TO 5800 FT AGL AT
                    IGNITION...OTHERWISE 5800-6300 FT AGL...THEN
                    DECREASING TO 3700 FT AGL IN THE EVENING.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH AT IGNITION...MAX 4.
SMOKE DISPERSAL.....0-200 (POOR TO FAIR) INCREASING TO 700-1100
                    (EXCELLENT) FROM LATE MORNING THROUGH EARLY
                    AFTERNOON...THEN DECREASING TO 400-600
    (GOOD TO EXCELLENT) LATE IN THE DAY.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLEAR (5-15 PERCENT). PATCHY FOG
                    OVERNIGHT.
TEMPERATURE.........MIN 38.
RH..................MAX 93 PERCENT.
WIND (20 FT)........EAST WINDS 6 TO 11 MPH.
MIXING WINDS........EAST 5 TO 10 MPH.
MIXING HEIGHT.......1800-2300 FT AGL DECREASING TO 0-300 FT AGL
                    AFTER MIDNIGHT.
HAINES INDEX........3 TO 4 OR OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH TO OR LOW POTENTIAL FOR
                    LARGE PLUME DOMINATED FIRE GROWTH.
SMOKE DISPERSAL.....0-200 (POOR TO FAIR).

.THURSDAY...

SKY/WEATHER.........SUNNY (10-20 PERCENT).
TEMPERATURE.........MAX 75.
RH..................MIN 34 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 5 TO 10 MPH.
MIXING WINDS........NORTHEAST 5 MPH SHIFTING TO THE WEST 5 MPH LATE.
MIXING HEIGHT.......4900-5400 FT AGL DECREASING TO 2200 FT AGL IN
                    THE EVENING.
HAINES INDEX........4 TO 5 OR OR LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH TO OR MODERATE POTENTIAL
                    FOR LARGE PLUME DOMINATED FIRE GROWTH.
SMOKE DISPERSAL.....0-100 (POOR).

$$
FORECASTER...OSTUNO
REQUESTED BY...BOB LITTLE
TYPE OF REQUEST...PRESCRIBED
.TAG 20090916.JACKS.01/GRR