FNUS76 KPDT 081450
FWSPDT

SPOT FORECAST FOR CACTUS MOUNTAIN...BMIDC
NATIONAL WEATHER SERVICE PENDLETON OR
750 AM PDT THU SEP 8 2011

FORECAST IS BASED ON REQUEST TIME OF 0712 PDT ON SEPTEMBER 08.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

...HIGH LOW LEVEL INSTABILITY TODAY AND POOR HUMIDITY RECOVERY
TONIGHT...

.DISCUSSION...HIGH PRESSURE WILL CONTINUE OVER THE REGION THROUGH
FRIDAY. SOME MID-LEVEL MOISTURE AND LOW LEVEL INSTABILITY WILL
RESULT IN CUMULUS BUILDUPS. A THUNDERSTORM MAY BE POSSIBLE TO THE
SOUTH OR WEST THIS AFTERNOON OR EVENING. MAIN CONCERN WILL BE AN
APPROACHING THERMAL TROUGH, VERY DRY HUMIDITY, AND AN INCREASE IN
VENTILATION THROUGH AT LEAST FRIDAY. ALSO EXPECT CONTINUED POOR
HUMIDITY RECOVERY AT NIGHT. HAINES 5 CONDITIONS FROM STABILITY
COMPONENT 3.

***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.........PARTLY CLOUDY. A SLIGHT CHANCE OF A THUNDERSTORM
                    THIS AFTERNOON, MAINLY SOUTH OR WEST OF FIRE.
CWR.................LESS THAN 10 PERCENT.
MAX TEMPERATURE.....94 TOP...99 BOTTOM.
MIN HUMIDITY........11 PERCENT TOP...6 PERCENT BOTTOM.
WIND (20 FT)........DRAINAGE WINDS 2-5 MPH BECOMING UPSLOPE/UP VALLEY
                    3-7 MPH BY 900, THEN INCREASING TO AND VARYING
                    FROM SOUTHWEST TO NORTHWEST (VARIABLE) 6-11 MPH
                    IN THE AFTERNOON.
RIDGETOP WIND.......NORTH TO NORTHEAST WINDS 4-7 MPH INCREASING TO
                    6-12 MPH IN THE AFTERNOON.
MIXING HEIGHT.......NEAR SURFACE INCREASING TO 11000 FT AGL IN THE
                    AFTERNOON.
TRANSPORT WINDS.....LIGHT WINDS BECOMING NORTH 7-12 MPH IN THE
                    AFTERNOON.
LAL.................2.
HAINES INDEX........5 (MODERATE).

.TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY. A SLIGHT CHANCE OF A THUNDERSTORM
                    THIS EVENING, MAINLY SOUTH OR WEST OF FIRE.
CWR.................LESS THAN 10 PERCENT.
MIN TEMPERATURE.....61-63 TOP...57-59 BOTTOM.
MAX HUMIDITY........33-35 TOP...39-41 PERCENT BOTTOM.
WIND (20 FT)........SOUTHWEST TO NORTHWEST WINDS 5 TO 10 MPH EARLY
                    IN THE EVENING BECOMING DRAINAGE 2-5 MPH.
RIDGETOP WIND.......NORTH-NORTHEAST WINDS 6-11 MPH.
MIXING HEIGHT.......11000 FT AGL DECREASING TO NEAR SURFACE AFTER
                    MIDNIGHT.
TRANSPORT WINDS.....NORTH 7-12 MPH IN THE EVENING BECOMING LIGHT.
LAL.................2.
HAINES INDEX........5 (MODERATE).

.FRIDAY...

SKY/WEATHER.........MOSTLY SUNNY.
CWR.................0.
MAX TEMPERATURE.....94-96 TOP...99-101 BOTTOM.
MIN HUMIDITY........9-11 PERCENT TOP...4-6 PERCENT BOTTOM.
WIND (20 FT)........UPSLOPE WINDS 2-5 MPH BECOMING SOUTHWEST TO 2 TO
                    6 MPH LATE IN THE MORNING...THEN INCREASING TO
                    SOUTHWEST TO NORTHWEST (VARIABLE) 6-9 MPH IN THE
                    AFTERNOON.
RIDGETOP WIND.......NORTHEAST WINDS 6-12 MPH.
MIXING HEIGHT.......NEAR SURFACE INCREASING TO 13000 FT AGL IN THE
                    AFTERNOON.
TRANSPORT WINDS.....LIGHT WINDS BECOMING NORTHEAST 6-11 MPH IN
                    THE AFTERNOON.
LAL.................1.
HAINES INDEX........4 (LOW).

.FORECAST DAYS 3 THROUGH 7...
.SATURDAY...
CLEAR. LOWS 56 TO 61. HIGHS 95 TO 100. SOUTHWEST WINDS 3 TO 6 MPH.
.SUNDAY...
MOSTLY CLEAR. LOWS 60 TO 65. HIGHS 87 TO 95. SOUTH WINDS 1 TO
6 MPH.
.MONDAY...
MOSTLY CLEAR. LOWS 57 TO 62. HIGHS 87 TO 92. NORTHEAST WINDS 3 TO
6 MPH.
.TUESDAY...
MOSTLY CLEAR. LOWS 57 TO 62. HIGHS 86 TO 91.
.WEDNESDAY...
MOSTLY CLEAR. LOWS 54 TO 59. HIGHS 86 TO 91.

$$
FORECASTER...GKH
REQUESTED BY...AMANDA JOHNSON
TYPE OF REQUEST...WILDFIRE
.TAG 20110908.CACTU.01/PDT