FNUS76 KPDT 142007
FWSPDT

SPOT FORECAST FOR FIRE RIDGE 504...USFS WWF
NATIONAL WEATHER SERVICE PENDLETON OR
107 PM PDT TUE SEP 14 2010

FORECAST IS BASED ON IGNITION TIME OF 1400 PDT ON SEPTEMBER 14.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...LOW PRESSURE ALOFT WILL CONTINUE TO MOVE OVER AND EAST
OF THE BURN SITE TODAY. OCCASIONAL SHOWERS WITH THUNDERSTORMS
POSSIBLE THIS AFTERNOON. THUNDERSTORMS WOULD MOST LIKELY DEVELOP
WITHIN THE NEXT COUPLE HOURS PRODUCING MODERATE RAIN AND OUTFLOW
GUSTS UP TO 35 MPH. CAUTION FOR SOUTHERLY CHANNELED DOWNDRAFT WINDS
ALONG ELK CREEK FROM THUNDERSTORMS TO THE SOUTH. EXPECT DRIER
CONDITIONS WEDNESDAY.

***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.........PARTLY CLOUDY. ISOLATED SHOWERS AND
                    THUNDERSTORMS.
CWR.................10.
MAX TEMPERATURE.....80.
MIN HUMIDITY........24 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 4 TO 7 MPH WITH GUSTS TO 15 MPH.
RIDGETOP WIND.......NORTHWEST WINDS 6 TO 12 MPH WITH GUSTS TO 20
                    MPH.
MIXING HEIGHT.......9500 FT AGL.
TRANSPORT WINDS.....NORTHWEST AROUND 7 MPH.

.TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY. ISOLATED SHOWERS AND
                    THUNDERSTORMS EARLY IN THE EVENING.
CWR.................10.
MIN TEMPERATURE.....48.
MAX HUMIDITY........70 PERCENT.
WIND (20 FT)........NORTH WINDS 4 TO 7 MPH WITH GUSTS TO 15 MPH IN
                    THE EVENING BECOMING DRAINAGE WINDS LESS THAN 5
                    MPH AROUND SUNSET.
RIDGETOP WIND.......NORTHWEST 6 TO 12 MPH WITH GUSTS TO 20 MPH
                    BECOMING SOUTHWEST 3 TO 8 MPH AFTER 2200.
MIXING HEIGHT.......7500 FT AGL DECREASING TO NEAR SURFACE AFTER
                    MIDNIGHT.
TRANSPORT WINDS.....NORTHWEST AROUND 7 MPH BECOMING LIGHT AFTER
                    MIDNIGHT.

.WEDNESDAY...

SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY WITH
                    SOME MODERATE CUMULUS IN THE AFTERNOON.
CWR.................0.
MAX TEMPERATURE.....83.
MIN HUMIDITY........20 PERCENT.
WIND (20 FT)........UPSLOPE WINDS 4 TO 8 MPH BECOMING SOUTH AFTER
                    1400.
RIDGETOP WIND.......SOUTHWEST 2 TO 5 MPH INCREASING TO 9 TO 13 MPH
                    WITH GUSTS TO 23 MPH AFTER 1000.
MIXING HEIGHT.......NEAR SURFACE INCREASING TO 10500 FT AGL IN THE
                    AFTERNOON.
TRANSPORT WINDS.....LIGHT WINDS BECOMING SOUTHWEST AROUND 9 MPH IN
                    THE AFTERNOON.

$$
FORECASTER...JON BONK
REQUESTED BY...AMANDA WILSON
TYPE OF REQUEST...PRESCRIBED
.TAG 20100914.FIRER.01/PDT