FNUS76 KSTO 310029
FWSSTO

SPOT FORECAST FOR READING FIRE...USFS/LASSEN NF
NATIONAL WEATHER SERVICE SACRAMENTO CA
529 PM PDT THU AUG 30 2012

FORECAST IS BASED ON REQUEST TIME OF 1543 PDT ON AUGUST 30.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
LOW PRESSURE TROUGH OFF THE COAST WILL BRING A SLIGHT COOLING TREND
WITH A LITTLE INCREASE IN SOUTHWEST WIND OVER THE FIRE SITE TODAY
AND TONIGHT. THE SOUTHWEST FLOW WILL BE DRY OVER THE FIRE SITE...
BUT SLIGHTLY COOLER TEMPERATURES WILL ACCOUNT FOR A SLIGHT RISE IN
HUMIDITY TODAY...TONIGHT AND SATURDAY. RISING TEMPERATURES AND LOWER
HUMIDITY RETURN ON SUNDAY.


.TODAY (FRIDAY)...

SKY/WEATHER.........SUNNY. AREAS OF SMOKE.
MAX TEMPERATURE.....72-77 LOWER ELEVATIONS...AROUND 70 HIGHER
                    ELEVATIONS.
MIN HUMIDITY........17-21 PERCENT.
WIND (20 FT)........
   SLOPE/VALLEY.....SOUTHEAST LESS THAN 5 MPH BECOMING SOUTHWEST
                    WINDS 7 TO 10 MPH WITH LOCAL GUSTS UP TO
                    15 MPH IN THE AFTERNOON.
   RIDGETOP.........SOUTH TO SOUTHWEST 8 TO 17 MPH WITH LOCAL
                    GUSTS UP TO 25 MPH IN THE AFTERNOON.
CWR.................0 PERCENT.
LAL.................1.
MIXING HEIGHT.......RISING TO 700O TO 8000 FT AGL.
MIXING WINDS........SOUTHWEST 17 TO 25 MPH.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLEAR. AREAS OF SMOKE.
MIN TEMPERATURE.....AROUND 35 LOWER ELEVATIONS DUE TO DRAINAGE AND
                    40-45 HIGHER ELEVATIONS.
MAX HUMIDITY........30-35 PERCENT HIGHER ELEVATIONS...AND
                    56-61 PERCENT LOWER ELEVATIONS.
WIND (20 FT)........
   SLOPE/VALLEY.....SOUTHWEST 6 TO 12 MPH BECOMING SOUTHEAST UP TO
                    5 MPH AFTER MIDNIGHT.
   RIDGETOP.........SOUTH TO SOUTHWEST 15 TO 20 MPH WITH LOCAL
                    GUSTS UP TO 25 MPH.
CWR.................0 PERCENT.
LAL.................1.
MIXING HEIGHT.......LOWERING TO NEAR GROUND LEVEL.
MIXING WINDS........SOUTH TO SOUTHWEST 11 TO 15 MPH.

.SATURDAY...

SKY/WEATHER.........MOSTLY SUNNY. AREAS OF SMOKE.
MAX TEMPERATURE.....AROUND 67 HIGHER ELEVATIONS...AND 70-75 LOWER
                    ELEVATIONS.
MIN HUMIDITY........18-24 PERCENT.
WIND (20 FT)........
   SLOPE/VALLEY.....SOUTHEAST UP TO 5 MPH EARLY MORNING...BECOMING
                    SOUTHWEST 4 TO 7 MPH WITH LOCAL GUSTS TO
                    12 MPH IN THE AFTERNOON.
   RIDGETOP.........SOUTHWEST 14 TO 20 MPH DECREASING TO 10 TO
                    15 MPH LATE IN THE AFTERNOON.
CWR.................0 PERCENT.
LAL.................1.
MIXING HEIGHT.......RISING TO 6000 TO 6500 FT AGL.
MIXING WINDS........SOUTHWEST 15 MPH IN THE MORNING...SOUTHWEST AT
                    10 MPH IN THE AFTERNOON.


FORECASTER...JHM
REQUESTED BY...OPERATIONS SEC  CHIEF
REASON FOR REQUEST...WILDFIRE
.TAG 20120830.READI.01/STO

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