FNUS73 KGRB 071520
FWSGRB

SPOT FORECAST FOR POWELL MARSH...BIA
NATIONAL WEATHER SERVICE GREEN BAY WI
1020 AM CDT THU MAY 7 2009

FORECAST IS BASED ON IGNITION TIME OF 1100 CDT ON MAY 07.
IF CONDITIONS BECOME UNREPRESENTATIVE CONTACT THE NATIONAL WEATHER
SERVICE IN GREEN BAY.

.DISCUSSION...DRIER AIR WILL MOVE INTO THE AREA TODAY. TEMPERATURES...
HUMIDITIES...AND WINDS WILL BE NEAR CRITICAL LEVELS THIS AFTERNOON.
A WEAK DISTURBANCE IN THE UPPER ATMOSPHERE IS EXPECTED TO PASS
OVER NORTHERN WISCONSIN TODAY. THIS SYSTEM ALONG WITH INSTABILITY ALOFT
WILL BRING A SLIGHT CHANCE OF HIGH BASED SHOWERS OR THUNDERSTORMS TO THE
AREA DURING THE AFTERNOON. ANY PRECIPITATION AMOUNTS ARE EXPECTED TO BE
LIGHT.

.REST OF TODAY...

SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY. A
                    SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN
                    THE AFTERNOON. CHANCE OF RAIN 20 PERCENT.
TEMPERATURE.........69 AT IGNITION...MAX 74.
RELATIVE HUMIDITY...44 PERCENT AT IGNITION...MIN 27 PERCENT.
20-FOOT WINDS.......WINDS SOUTHWEST AT 9 MPH AT
                    IGNITION...BECOMING WEST AT 11 TO 16 MPH.
                    WESTERLY GUSTS OF 19 TO 24 MPH POSSIBLE AT
                    TIMES DURING THE MIDDLE TO LATE AFTERNOON.
MIXING HEIGHT.......6200 FT AGL AT IGNITION...INCREASING TO MAX OF
                    10000 FT AGL.
TRANSPORT WINDS.....WEST AT AROUND 29 MPH AT IGNITION...OTHERWISE
                    WEST 28 TO 33 MPH.
SMOKE DISPERSAL.....AROUND 130100 OR EXCELLENT AT IGNITION. MAX...
                    INCREASING TO MAX OF 307200 OR EXCELLENT.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
TEMPERATURE.........MIN 43.
RELATIVE HUMIDITY...MAX 73 PERCENT.
20-FOOT WINDS.......WEST WINDS 4 TO 9 MPH IN THE EVENING BECOMING
                    LIGHT...THEN BECOMING WEST 3 TO 7 MPH EARLY IN
                    THE MORNING.
MIXING HEIGHT.......DECREASING TO 400 FT AGL.
TRANSPORT WINDS.....DECREASING TO 7 TO 12 MPH.
SMOKE DISPERSAL.....DECREASING TO 2300 OR POOR.

.FRIDAY...

SKY/WEATHER.........PARTLY CLOUDY.
TEMPERATURE.........MAX 63.
RELATIVE HUMIDITY...MIN 36 PERCENT.
20-FOOT WINDS.......NORTHWEST WINDS 7 TO 12 MPH.
MIXING HEIGHT.......INCREASING TO 6900 FT AGL.
TRANSPORT WINDS.....WEST 21 TO 26 MPH DECREASING TO 13 TO 18 MPH
                    LATE IN THE AFTERNOON.
SMOKE DISPERSAL.....32600 OR GOOD...INCREASING TO MAX...173900 OR
                    EXCELLENT.

$$
FORECASTER...JS
REQUESTED BY...STEVE RADAJ
TYPE OF REQUEST...PRESCRIBED
.TAG 20090507.POWEL.01/GRB