FNUS76 KPDT 090223
FWSPDT

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

FORECAST IS BASED ON REQUEST TIME OF 1836 PDT ON SEPTEMBER 08.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

...SIGNIFICANT LOW LEVEL INSTABILITY ALONG WITH POOR HUMIDITY
RECOVERY FOR THE NEXT COUPLE DAYS...

.DISCUSSION...HIGH PRESSURE WILL CONTINUE OVER THE REGION THROUGH
SATURDAY. MAIN CONCERN WILL BE AN APPROACHING THERMAL TROUGH, VERY
DRY HUMIDITY, AND AN INCREASE IN VENTILATION THROUGH AT LEAST
SUNDAY. ALSO EXPECT CONTINUED POOR HUMIDITY RECOVERY AT NIGHT.
INVERSION TOP AROUND 4000 FEET AND BREAKING AROUND 1100 FRIDAY
MORNING. HAINES 5 CONDITIONS FROM STABILITY COMPONENT 3. MAY SEE
SOME CUMULUS BUILDUPS OFF TO THE EAST 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***

.TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY THEN CLEARING.
CWR.................0.
MIN TEMPERATURE.....57 BOTTOM...63 TOP (3500 FEET).
MAX HUMIDITY........48 PERCENT BOTTOM...30 PERCENT TOP
WIND (20 FT)........NORTH WINDS 3 TO 8 MPH IN THE EVENING BECOMING
                    DRAINAGE WINDS 3 TO 6 MPH AROUND 2000.
RIDGETOP WIND.......NORTH 6 TO 10 MPH.
MIXING HEIGHT.......5500 FT AGL DECREASING TO NEAR SURFACE AFTER
                    MIDNIGHT.
TRANSPORT WINDS.....NORTH AROUND 9 MPH IN THE EVENING BECOMING
                    LIGHT.
LAL.................1.
HAINES INDEX........5 (MODERATE) WITH STABILITY COMPONENT 3.

.FRIDAY...

SKY/WEATHER.........MOSTLY SUNNY WITH SOME CUMULUS IN THE AFTERNOON.
CWR.................0.
MAX TEMPERATURE.....96 BOTTOM....87 TOP.
MIN HUMIDITY........12 PERCENT BOTTOM...16 PERCENT TOP.
WIND (20 FT)........TERRAIN DRIVEN 4 TO 9 MPH BECOMING NORTH 6 TO 10
                    MPH WITH GUSTS TO 20 MPH AROUND 1500.
RIDGETOP WIND.......NORTH 6 TO 10 MPH BECOMING NORTHEAST 10 TO 14
                    MPH AROUND 1400.
MIXING HEIGHT.......NEAR SURFACE INCREASING TO 13500 FT AGL IN THE
                    AFTERNOON.
TRANSPORT WINDS.....LIGHT WINDS BECOMING NORTHEAST AROUND 13 MPH IN
                    THE AFTERNOON.
LAL.................1.
HAINES INDEX........5 (MODERATE) WITH STABILITY COMPONENT 3.

.FRIDAY NIGHT...

SKY/WEATHER.........CLEAR.
CWR.................0.
MIN TEMPERATURE.....57 BOTTOM...63 TOP.
MAX HUMIDITY........44 PERCENT BOTTOM....29 PERCENT TOP.
WIND (20 FT)........NORTH WINDS 7 TO 11 WITH GUSTS UP TO 20 MPH
                    BECOMING DRAINAGE 4 TO 8 MPH AROUND 2100.
RIDGETOP WIND.......NORTHEAST 10 TO 14 MPH BECOMING NORTH 6 TO 10
                    MPH AROUND 2000.
MIXING HEIGHT.......10500 FT AGL DECREASING TO NEAR SURFACE AFTER
                    MIDNIGHT.
TRANSPORT WINDS.....NORTHEAST AROUND 12 MPH IN THE EVENING BECOMING
                    LIGHT.
LAL.................1.
HAINES INDEX........4 (LOW).

.FORECAST DAYS 3 THROUGH 7...
.SATURDAY...
CLEAR. LOWS 56 TO 61. HIGHS 95 TO 100. NORTHWEST WINDS 2 TO
7 MPH.
.SUNDAY...
MOSTLY CLEAR. LOWS 61 TO 66. HIGHS 89 TO 100. NORTHWEST WINDS
8 TO 12 MPH.
.MONDAY...
MOSTLY CLEAR. LOWS 58 TO 63. HIGHS 88 TO 93. NORTHWEST WINDS 7 TO
11 MPH.
.TUESDAY...
MOSTLY CLEAR. LOWS 56 TO 61. HIGHS 87 TO 92. NORTHWEST WINDS 4 TO
8 MPH.
.WEDNESDAY...
MOSTLY CLEAR. LOWS 55 TO 60. HIGHS 87 TO 92. NORTHWEST WINDS 4 TO 8
MPH.
.THURSDAY...
MOSTLY CLEAR. LOWS 54 TO 59. HIGHS 87 TO 92. NORTHWEST WINDS 9 TO 14
MPH.

$$
FORECASTER...JON BONK
REQUESTED BY...AMANDA JOHNSON
TYPE OF REQUEST...WILDFIRE
.TAG 20110908.CACTU.02/PDT