FNUS76 KPQR 232217
FWSPQR

SPOT FORECAST FOR SHADOW LAKE...USFS WNF
NATIONAL WEATHER SERVICE PORTLAND OR
317 PM PDT FRI SEP 23 2011

FORECAST IS BASED ON REQUEST TIME OF 1439 PDT ON SEPTEMBER 23.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

...WETTING RAINS EXPECTED SATURDAY NIGHT AND SUNDAY...

.DISCUSSION...WEAK SOUTHWEST FLOW ALOFT WILL CONTINUE TONIGHT AS
A PACIFIC FRONT SLOWLY APPROACHES THE COAST. RAIN IS NOT EXPECTED
FROM THIS FRONT UNTIL IT MOVES INLAND SUNDAY. OVERNIGHT HUMIDITY
RECOVERIES WILL BE MUCH IMPROVED TONIGHT ACROSS THE FIRE AS THE
MARINE LAYER DEEPENS IN RESPONSE TO THIS APPROACHING FRONT.

THE UPPER LEVEL FLOW WILL TURN MORE SOUTHERLY ON SATURDAY AS THE
OFFSHORE TROUGH DEEPENS AND THE ASSOCIATED SURFACE FRONT
APPROACHES THE COAST. THIS MAY INCREASE THE INSTABILITY OVER THE
FIRE SATURDAY AFTERNOON BUT THUNDERSTORMS ARE NOT EXPECTED AT
THIS TIME. THE FRONT WILL FINALLY PUSH ASHORE SUNDAY WITH POSSIBLE
WETTING RAIN.



.TONIGHT...

SKY/WEATHER.........MOSTLY CLEAR.
CWR (%).............0 PERCENT.
MIN TEMPERATURE.....48-53.
MAX HUMIDITY........GENERALLY AT OR ABOVE 75 PERCENT.
WIND (20 FT)........SOUTHWEST 3-7 MPH...BECOMING DOWNSLOPE TO 3 MPH
                    ON LOWER/MID SLOPES AFTER 2000.
HAINES INDEX........4 (LOW).

TIME (PDT)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM

TEMP............72     65     61     57     55     53
RH..............33     49     62     71     77     82
20 FT WIND......SW 4   W 3    DWN 2  DWN 2  DWN 2  DWN 2
   MAX GUST.....8      5
CWR.............0      0      0      0      0      0

.SATURDAY...

SKY/WEATHER.........INCREASING CLOUDS.
CWR (%).............0 PERCENT.
MAX TEMPERATURE.....HIGHS 74 TO 78...BUT 68 TO 73 NEAR 5000 FEET.
MIN HUMIDITY........32 TO 40 PERCENT.
WIND (20 FT)........VALLEYS/LOWER SLOPES:  VARIABLE LESS THAN 3 MPH IN
                        THE MORNING THEN SOUTHWEST 4 TO 8 MPH WITH
                        GUSTS TO 15 MPH.

                    RIDGES:  SOUTHWEST 6 TO 10 MPH IN THE MORNING THEN
                             7 TO 13 MPH. AFTERNOON GUSTS UP TO 22 MPH
                             ESPECIALLY ON EXPOSED RIDGES.
HAINES INDEX........4 (LOW).


.SUNDAY....

SKY/WEATHER.........MOSTLY CLOUDY. RAIN LIKELY IN THE MORNING...THEN A
                    CHANCE OF SHOWERS IN THE AFTERNOON.
CWR (%).............40 PERCENT.
MAX TEMPERATURE.....61 TO 67...BUT LOWER TO MID 50S AT 5000 FEET.
MIN HUMIDITY........50 TO 58 PERCENT.
WIND (20 FT)........VALLEYS/LOWER SLOPES: SOUTHWEST 6 TO 10 MPH WITH
                        AFTERNOON GUSTS TO 20 MPH.

                    RIDGES:  SOUTHWEST 10 TO 15 MPH WITH GUSTS TO 25
                             MPH.
HAINES INDEX........3 (LOW).


$$
FORECASTER...COLLINS
REQUESTED BY...PLANNING OPS
REASON FOR REQUEST...WILDFIRE
.TAG 20110923.SHADO.01/PQR