FNUS76 KPDT 131812
FWSPDT

SPOT FORECAST FOR THREE PRAIRIE UNIT 43...USFS UMF
NATIONAL WEATHER SERVICE PENDLETON OR
1112 AM PDT MON SEP 13 2010

FORECAST IS BASED ON IGNITION TIME OF 1200 PDT ON SEPTEMBER 13.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...LOW PRESSURE MOVING ON SHORE WILL BRING INSTABILITY TO
THE BURN AREA. THINK MOST DEEPER CONVECTION WILL OCCUR SOUTH OF THE
UNIT BUT CAN'T RULE OUT AN OCCASIONAL SHOWER OR THUNDERSTORM. MAIN
CONCERN WILL BE FOR GUSTY DOWNDRAFTS IN THE AREA...ESPECIALLY FROM
THE SOUTH AND SOUTHEAST. SOME OVERNIGHT CONVECTION IS POSSIBLE BUT
MAINLY TO THE SOUTHEAST.

***THUNDERSTORMS IMPLY GUSTY AND ERRATIC WINDS***
***WINDS ARE 20 FOOT 10 MINUTE AVERAGES***
***CWR-CHANCE OF WETTING RAIN 0.10 OR GREATER***
***FORECAST IS VALID FOR 12 HOURS AFTER ISSUANCE***

.REST OF TODAY...

SKY/WEATHER.........INCREASING CLOUDS. ISOLATED SHOWERS AND
                    THUNDERSTORMS LATE IN THE AFTERNOON.
CWR.................10.
MAX TEMPERATURE.....72.
MIN HUMIDITY........32 PERCENT.
WIND (20 FT)........NORTHWEST 6 TO 10 MPH BECOMING NORTHEAST 9 TO 12
                    MPH AFTER 1400.
RIDGETOP WIND.......NORTHWEST 6 TO 10 MPH BECOMING NORTHEAST 9 TO 12
                    MPH AFTER 1400.
MIXING HEIGHT.......3500 FT AGL IN THE AFTERNOON.
TRANSPORT WINDS.....NORTHEAST AROUND 10 MPH.

.TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY. ISOLATED THUNDERSTORMS IN THE
                    EVENING. ISOLATED SHOWERS THROUGH THE NIGHT.
CWR.................10.
MIN TEMPERATURE.....51.
MAX HUMIDITY........75 PERCENT.
WIND (20 FT)........NORTHEAST WINDS 11 TO 14 MPH DECREASING TO 5 TO
                    8 MPH AFTER MIDNIGHT.
RIDGETOP WIND.......NORTHEAST WINDS 11 TO 14 MPH DECREASING TO 5 TO
                    8 MPH AFTER MIDNIGHT.
MIXING HEIGHT.......2500 FT AGL DECREASING TO NEAR SURFACE AFTER
                    MIDNIGHT.
TRANSPORT WINDS.....NORTHEAST AROUND 9 MPH.

.TUESDAY...

SKY/WEATHER.........PARTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS IN
                    THE MORNING.
CWR.................10.
MAX TEMPERATURE.....68.
MIN HUMIDITY........34 PERCENT.
WIND (20 FT)........NORTH WINDS 5 TO 8 MPH INCREASING TO 10 TO 13
                    MPH AFTER 1300.
RIDGETOP WIND.......NORTH WINDS 5 TO 8 MPH INCREASING TO 10 TO 13
                    MPH AFTER 1300.
MIXING HEIGHT.......NEAR SURFACE INCREASING TO 5000 FT AGL AROUND
                    LATE MORNING.
TRANSPORT WINDS.....NORTH AROUND 6 MPH IN THE MORNING BECOMING
                    NORTHEAST IN THE AFTERNOON.

$$
FORECASTER...JON BONK
REQUESTED BY...ENGINE 657
TYPE OF REQUEST...PRESCRIBED
.TAG 20100913.THREE.01/PDT