FNUS73 KGRR 151209
FWSGRR

FIRE WEATHER PLANNING FORECAST FOR POWERLINE 1...USFS
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
809 AM EDT WED JUN 15 2011

FORECAST IS BASED ON IGNITION TIME OF 1300 EDT ON JUNE 15.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...LOW PRESSURE WILL MOVE TOWARD LOWER MICHIGAN TODAY
PUSHING A BAND OF RAIN INTO SOUTHWEST LOWER MICHIGAN. THE RAIN
WILL SPREAD ACROSS SOUTHERN LOWER MICHIGAN THIS MORNING AND INTO
CENTRAL LOWER MICHIGAN THIS AFTERNOON. RAIN IS POSSIBLE FROM ABOUT
100 PM ON...BUT THE DRY AIR ACROSS CENTRAL LOWER MICHIGAN WILL
TEND TO ERODE THE PRECIPITATION. SOUTHEAST WINDS OF 10 TO 20 MPH
CAN BE EXPECTED BEFORE THE RAIN MOVES IN. GUSTS OF 18 TO 23 MPH
ARE POSSIBLE BETWEEN 100O AM AND 400 PM.


.TODAY...

SKY/WEATHER.........PARTLY SUNNY (55-65 PERCENT) THEN BECOMING
                    CLOUDY (85-95 PERCENT). NUMEROUS SHOWERS IN THE
                    AFTERNOON.
TEMPERATURE.........72 AT IGNITION...MAX 76.
RH..................47 PERCENT AT IGNITION...MIN 46 PERCENT.
WIND (20 FT)........WINDS SOUTHEAST AT 17 MPH AT
                    IGNITION...OTHERWISE SOUTH WINDS 7 TO 12 MPH.
MIXING WINDS........SOUTHEAST 14 TO 22 MPH SHIFTING TO THE SOUTH
                    AROUND 14 MPH IN THE EVENING.
MIXING HEIGHT.......5000 FT AGL AT IGNITION...OTHERWISE 5800-6300
                    FT AGL DECREASING TO 3400 FT AGL IN THE
                    EVENING.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH AT IGNITION...MAX 5.
SMOKE DISPERSAL.....100-300 (POOR TO GOOD) INCREASING TO 600-900
                    (EXCELLENT TO EXCELLENT) FROM LATE MORNING
                    THROUGH EARLY AFTERNOON...THEN INCREASING TO
                    1100-1400 (EXCELLENT TO EXCELLENT) DECREASING
                    TO 500-900 (GOOD TO EXCELLENT) LATE IN THE DAY.

TIME (EDT)      1 PM   3 PM   5 PM   7 PM
SKY (%).........51     58     74     91
WEATHER COV.....       NUMRUS NUMRUS NUMRUS
WEATHER TYPE....NONE   RNSHWR RNSHWR RNSHWR
TEMP............72     74     73     69
RH..............47     47     50     60
20 FT WIND......SE 14  SE 13  S 10   SW 7
20 FT GUST......25     25     20     15
HAINES INDEX....4      4      4      3

.TONIGHT...

SKY/WEATHER.........CLOUDY (95-100 PERCENT). RAIN SHOWERS LIKELY
                    AND A SLIGHT CHANCE OF THUNDERSTORMS.
TEMPERATURE.........MIN 56.
RH..................MAX 100 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 5 TO 10 MPH. GUSTY AND ERRATIC
                    WINDS EXPECTED NEAR THUNDERSTORMS.

.THURSDAY...

SKY/WEATHER.........CLOUDY (85-95 PERCENT). CHANCE OF RAIN SHOWERS.
TEMPERATURE.........MAX 69.
RH..................MIN 70 PERCENT.
WIND (20 FT)........WEST WINDS 5 TO 10 MPH. GUSTY AND ERRATIC WINDS
                    EXPECTED NEAR THUNDERSTORMS.

$$
FORECASTER...DUKE
REQUESTED BY...STEVE HATTING
TYPE OF REQUEST...PRESCRIBED
.TAG 20110615.POWER.01/GRR