FNUS76 KPDT 201654
FWSPDT

SPOT FORECAST FOR BIG SHEEP RIDGE...USFS WWF
NATIONAL WEATHER SERVICE PENDLETON OR
955 AM PDT SUN SEP 20 2009

FORECAST IS BASED ON REQUEST TIME OF 0919 PDT ON SEPTEMBER 20.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...SKIES WILL CLEAR AS HIGH PRESSURE MOVES OVER THE AREA.
COOL AND DRY CONDITIONS EXPECTED TODAY AND TONIGHT BUT NOTICEABLY
WARMER ON MONDAY. NORTHERLY WINDS WILL INCREASE DURING THE
AFTERNOON...THEN SHIFT TO THE EAST OVERNIGHT AND BECOME LIGHT.
THERMAL BANDING MAY DEVELOP MONDAY NIGHT AND TUESDAY NIGHT ON MID
SLOPES...WITH POOR RIDGETOP HUMIDITY RECOVERIES. A WEAK DRY FRONT
WILL MOVE THROUGH WASHINGTON THURSDAY. THE RIDGE WILL REBUILD FRIDAY.

***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.........MOSTLY CLOUDY THEN BECOMING MOSTLY SUNNY.
CWR.................0.
MAX TEMPERATURE.....56.
MIN HUMIDITY........34 PERCENT.
WIND (20 FT)........NORTH-NORTHWEST WINDS 2 TO 5 MPH INCREASING TO 6
                    TO 12 MPH IN THE AFTERNOON.
RIDGETOP WIND.......NORTH-NORTHWEST 8 TO 15 MPH.
MIXING HEIGHT.......5000 FT AGL.
TRANSPORT WINDS.....NORTHWEST 9 TO 13 MPH.
LAL.................1.
HAINES INDEX........4 (LOW).

.TONIGHT...

SKY/WEATHER.........CLEAR.
CWR.................0.
MIN TEMPERATURE.....35-40.
MAX HUMIDITY........33-38 PERCENT.
WIND (20 FT)........NORTHEAST WINDS 5 TO 12 MPH BECOMING DRAINAGE.
RIDGETOP WIND.......EAST 5 TO 10 MPH.
MIXING HEIGHT.......5000 FT AGL DECREASING TO 500 FT AGL AFTER
                    MIDNIGHT.
TRANSPORT WINDS.....NORTH AROUND 13 MPH SHIFTING TO THE EAST AROUND
                    7 MPH AFTER MIDNIGHT.
LAL.................1.
HAINES INDEX........4 (LOW).

.MONDAY...

SKY/WEATHER.........SUNNY.
CWR.................0.
MAX TEMPERATURE.....66-71.
MIN HUMIDITY........10-15 PERCENT.
WIND (20 FT)........SOUTH-SOUTHEAST WINDS 4 TO 8 MPH.
RIDGETOP WIND.......SOUTHEAST 4 TO 10 MPH.
MIXING HEIGHT.......3500 FT AGL.
TRANSPORT WINDS.....SOUTHEAST AROUND 7 MPH IN THE MORNING BECOMING
                    LIGHT.
LAL.................1.
HAINES INDEX........4 (LOW).

.FORECAST DAYS 3 THROUGH 7...
.TUESDAY...
CLEAR. LOWS 46 TO 51. HIGHS 66 TO 73. SOUTH WINDS 4 TO 7 MPH.
.WEDNESDAY...
CLEAR. LOWS 49 TO 54. HIGHS 73 TO 78. SOUTH WINDS 1 TO 5 MPH.
.THURSDAY...
CLEAR. LOWS 50 TO 55. HIGHS 74 TO 79. SOUTH WINDS 3 TO 6 MPH.
.FRIDAY...
CLEAR. LOWS 48 TO 53. HIGHS 71 TO 76.
.SATURDAY...
CLEAR. LOWS 44 TO 49. HIGHS 70 TO 75.

$$
FORECASTER...RACHEL CALDER
REQUESTED BY...AMANDA WILSON
TYPE OF REQUEST...WILDFIRE
.TAG 20090920.BIGSH.01/PDT