FNUS76 KSTO 092252
FWSSTO

SPOT FORECAST FOR SCOTTS INCIDENT...CAL FIRE
NATIONAL WEATHER SERVICE SACRAMENTO CA
352 PM PDT SUN SEP 9 2012

FORECAST IS BASED ON REQUEST TIME OF 2315 PDT ON SEPTEMBER 08.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
THE MAIN PART OF THE UPPER LEVEL TROUGH DID MOVE ACROSS THE PACIFIC
NORTHWEST ON SUNDAY. HOWEVER...A VERY WEAK UPPER LEVEL LOW HAS SPLIT
FROM THE MAIN PART OF THE TROUGH AND WILL PASS SOUTH OF THE FIRE
SITE MONDAY NIGHT. THIS WILL SLOW THE REBUILDING OF THE UPPER LEVEL
RIDGE AND HOTTER WEATHER UNTIL THE LATTER HALF OF THE WEEK.

FOR WINDS...EXPECT WEST TO NORTHWEST WINDS OVER THE FIRE SITE ON
MONDAY...BUT LIGHTER THAN SUNDAY. THEN WINDS WILL TRANSITION TO
SOUTHEAST AND REMAIN LIGHT MONDAY NIGHT AND INTO TUESDAY AS THE
WEAK LOW PASSES SOUTH OF THE FIRE SITE.

THE AIR MASS WILL CONTINUE TO BE WITH LOW HUMIDITY DURING THE DAY...
AND POOR TO MODERATE HUMIDITY RECOVERY AT NIGHT...ESPECIALLY OVER
RIDGE TOPS.

NOTE...A RED FLAG WARNING REMAINS IN EFFECT FOR THE FIRE SITE
THROUGH SUNDAY EVENING UNTIL 8 PM PDT. IT LOOKS LIKE THE LYONS
RAWS MAY HAVE SOME DEWPOINT PROBLEMS WHICH ALSO WILL AFFECT THE
RH. DEWPOINTS AS LOW AS 10 DEG F ARE POSSIBLE...BUT THE NEGATIVE
DEWPOINTS LOOK SUSPECT.


.TODAY (MONDAY)...

SKY/WEATHER.........SUNNY.
MAX TEMPERATURE.....88-93.
MIN HUMIDITY........10-15 PERCENT.
WIND (20 FT)........
   SLOPE/VALLEY.....DRAINAGE OR NORTHWEST UP TO 5 MPH IN THE
                    MORNING...AND WEST TO NORTHWEST 5 TO 10 MPH
                    IN THE AFTERNOON.
   RIDGETOP.........NORTH 3 TO 8 MPH IN THE MORNING...NORTHWEST
                    10 TO 15 MPH IN THE AFTERNOON.
CWR.................0 PERCENT.
LAL.................1.
MIXING HEIGHT.......RISING TO 5000 FT AGL.
MIXING WINDS........NORTHWEST LESS THAN 5 MPH IN THE MORNING AND
                    NORTHWEST 5 TO 9 MPH IN THE AFTERNOON.

.TONIGHT (MONDAY NIGHT)...

SKY/WEATHER.........CLEAR.
MIN TEMPERATURE.....61-66.
MAX HUMIDITY........28-33 PERCENT UPPER SLOPES AND RIDGE TOPS...
                    47-52 PERCENT VALLEYS AND LOWER SLOPES.
WIND (20 FT)........
   SLOPE/VALLEY.....NORTHWEST WINDS 3 TO 8 MPH BECOMING VARIABLE
                    OR DRAINAGE UP TO 3 MPH.
   RIDGETOP.........NORTHWEST 10 TO 15 MPH BECOMING SOUTHEAST
                    4 TO 8 MPH.
CWR.................0 PERCENT.
LAL.................1.
MIXING HEIGHT.......LOWERING TO NEAR GROUND LEVEL.
MIXING WINDS........VARIABLE UP TO 5 MPH.

.TUESDAY...

SKY/WEATHER.........SUNNY.
MAX TEMPERATURE.....91-96.
MIN HUMIDITY........13-18 PERCENT.
WIND (20 FT)........
   SLOPE/VALLEY.....SOUTHEAST UP TO 6 MPH...BECOMING SOUTHWEST TO
                    WEST 3 TO 8 MPH IN THE AFTERNOON.
   RIDGETOP.........SOUTHEAST 6 TO 12 MPH IN THE MORNING...
                    DECREASING TO 5 TO 10 MPH IN THE AFTERNOON.
CWR.................0 PERCENT.
LAL.................1.
MIXING HEIGHT.......RISING TO 4000 FT AGL.
MIXING WINDS........SOUTHEAST 6 MPH.


FORECASTER...JHM
REQUESTED BY...B  BAXTER
REASON FOR REQUEST...WILDFIRE
.TAG 20120908.SCOTT.02/STO

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