FNUS73 KGRR 261258
FWSGRR

FIRE WEATHER PLANNING FORECAST FOR POWERLINE 8 26...US FOREST SERVICE
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
858 AM EDT THU AUG 26 2010

FORECAST IS BASED ON IGNITION TIME OF 1300 EDT ON AUGUST 26.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...MOSTLY SUNNY SKIES WITH PLEASANT TEMPERATURES AND LOW
DEW POINTS ARE FORECAST FOR TODAY AND TOMORROW. LARGELY CALM WINDS
THIS MORNING WILL TRANSITION TO A LIGHT WESTERLY BREEZE BY THE
AFTERNOON...WITH LIGHT AND VARIABLE WINDS POSSIBLE DURING THE
TRANSITION PERIOD LATE THIS MORNING. WINDS WILL TAKE ON A MORE
SOUTHWESTERLY COMPONENT LATER TONIGHT AND INTO FRIDAY.


.TODAY...

SKY/WEATHER.........MOSTLY SUNNY (30-40 PERCENT).
TEMPERATURE.........68 AT IGNITION...MAX 73.
RH..................45 PERCENT AT IGNITION...MIN 40 PERCENT.
WIND (20 FT)........WINDS WEST AT 12 MPH AT IGNITION...OTHERWISE
                    SOUTH WINDS 5 TO 6 MPH SHIFTING TO THE
                    NORTHWEST 6 TO 11 MPH.
MIXING WINDS........NORTHWEST 3 TO 10 MPH.
MIXING HEIGHT.......1400-1900 FT AGL INCREASING TO 6500 FT AGL AT
                    IGNITION...THEN DECREASING TO 4100 FT AGL IN
                    THE EVENING.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH AT IGNITION...MAX 5.
SMOKE DISPERSAL.....0-300 (POOR TO GOOD) INCREASING TO 400-700
                    (GOOD TO EXCELLENT).

.TONIGHT...

SKY/WEATHER.........MOSTLY CLEAR (5-15 PERCENT).
TEMPERATURE.........MIN 45.
RH..................MAX 100 PERCENT.
WIND (20 FT)........SOUTH WINDS 5 TO 10 MPH.
MIXING WINDS........WEST 7 TO 9 MPH SHIFTING TO THE SOUTH 3 TO 5
                    MPH.
MIXING HEIGHT.......2700-3200 FT AGL DECREASING TO 500-1000 FT AGL.
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.....0-300 (POOR TO GOOD).

.FRIDAY...

SKY/WEATHER.........SUNNY (0-10 PERCENT).
TEMPERATURE.........MAX 80.
RH..................MIN 40 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 11 TO 16 MPH.
MIXING WINDS........SOUTHWEST 6 TO 15 MPH INCREASING TO 14 TO 16
                    MPH.
MIXING HEIGHT.......1100-1600 FT AGL INCREASING TO 4700-5200 FT
                    AGL...THEN DECREASING TO 2800 FT AGL IN THE
                    EVENING.
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.....0-400 (POOR TO GOOD) INCREASING TO 400-800
                    (GOOD TO EXCELLENT).

$$
FORECASTER...HOVING
REQUESTED BY...KEVIN SHERRETZ
TYPE OF REQUEST...PRESCRIBED
.TAG 20100826.POWER.01/GRR