FNUS76 KPDT 131705
FWSPDT

SPOT FORECAST FOR BIG SHEEP RIDGE...USFS WWF
NATIONAL WEATHER SERVICE PENDLETON OR
1006 AM PDT SUN SEP 13 2009

FORECAST IS BASED ON REQUEST TIME OF 0934 PDT ON SEPTEMBER 13.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...SURFACE THERMAL TROUGH WILL SHIFT EAST TODAY CREATING
UNSTABLE CONDITIONS OVER THE BURN AREA THIS AFTERNOON AND EVENING
LEADING TO A HAINES INDEX OF 5. ISOLATED SHOWERS WILL BE POSSIBLE
LATER TONIGHT WITH AN APPROACHING WEATHER DISTURBANCE. THIS
DISTURBANCE WILL ALSO BRING A SLIGHT CHANCE OF THUNDERSTORMS MONDAY
AFTERNOON.

***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***

.TODAY...

SKY/WEATHER.........SUNNY THEN BECOMING PARTLY CLOUDY.
CWR.................0.
MAX TEMPERATURE.....73.
MIN HUMIDITY........21 PERCENT.
WIND (20 FT)........TERRAIN DRIVEN WINDS LESS THAN 5 MPH BECOMING
                    WEST WINDS 4 TO 7 MPH IN THE AFTERNOON.
RIDGETOP WIND.......WEST WINDS 3 TO 6 MPH BECOMING WEST TO NORTHWEST
                    5 TO 8 MPH IN THE AFTERNOON.
MIXING HEIGHT.......500 FT AGL INCREASING TO 8000 FT AGL IN THE
                    AFTERNOON.
TRANSPORT WINDS.....LIGHT WINDS BECOMING WEST 7 TO 10 MPH IN THE
                    AFTERNOON.
LAL.................1.
HAINES INDEX........4 (LOW).

.TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS
                    OVERNIGHT.
CWR.................10.
MIN TEMPERATURE.....54-56.
MAX HUMIDITY........55-59 PERCENT.
WIND (20 FT)........WEST WINDS 4 TO 7 MPH BECOMING DRAINAGE WINDS
                    LESS THAN 5 MPH AFTER MIDNIGHT.
RIDGETOP WIND.......WEST WINDS 5 TO 8 MPH BECOMING WEST 3 TO 6 MPH
                    AFTER MIDNIGHT.
MIXING HEIGHT.......8000 FT AGL DECREASING TO 500 FT AGL AFTER
                    MIDNIGHT.
TRANSPORT WINDS.....WEST 8 TO 10 MPH.
LAL.................1.
HAINES INDEX........5 (MODERATE).

.MONDAY...

SKY/WEATHER.........PARTLY CLOUDY. A CHANCE OF SHOWERS THROUGH THE
                    DAY. A SLIGHT CHANCE OF THUNDERSTORMS IN THE
                    AFTERNOON.
CWR.................20.
MAX TEMPERATURE.....63-65.
MIN HUMIDITY........33-37 PERCENT.
WIND (20 FT)........TERRAIN DRIVEN WINDS LESS THAN 5 MPH BECOMING
                    WEST 2 TO 6 MPH IN THE AFTERNOON.
RIDGETOP WIND.......WEST WINDS 5 TO 8 MPH.
MIXING HEIGHT.......500 FT AGL INCREASING TO 3000 FT AGL IN THE
                    AFTERNOON.
TRANSPORT WINDS.....WEST 6 TO 10 MPH.
LAL.................2.
HAINES INDEX........3 (VERY LOW).

.FORECAST DAYS 3 THROUGH 7...
.TUESDAY...
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS 47 TO 52. HIGHS 61 TO 67. NORTHEAST WINDS 3 TO 6 MPH.
.WEDNESDAY...
PARTLY CLOUDY. LOWS 50 TO 55. HIGHS 67 TO 72. SOUTHEAST WINDS
5 TO 8 MPH.
.THURSDAY...
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS 48 TO 53.
HIGHS 61 TO 70. SOUTH WINDS 3 TO 6 MPH.
.FRIDAY...
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. LOWS 45 TO 50.
HIGHS 61 TO 66.
.SATURDAY...
PARTLY CLOUDY. LOWS 46 TO 51. HIGHS 64 TO 69.

$$
FORECASTER...DMH
REQUESTED BY...AMANDA WILSON
TYPE OF REQUEST...WILDFIRE
.TAG 20090913.BIGSH.01/PDT