FNUS76 KEKA 211516 CCA
FWSEKA

SPOT FORECAST FOR OSBFSC RX BURN...SIX RIVERS NF
NATIONAL WEATHER SERVICE EUREKA CA
814 AM PDT TUE APR 21 2009

FORECAST IS BASED ON IGNITION TIME OF 1000 PDT ON APRIL 21.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE IN EUREKA AT (707) 443-6484.

.DISCUSSION...HIGH PRESSURE ALOFT WILL PERSIST TODAY BEFORE BEGINNING TO
WEAKEN. A SLIGHT INCREASE IN MID LEVEL MOISTURE MAY PRODUCE AFTERNOON
CLOUD BUILD UPS ALONG WITH A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS
HOWEVER THE GREATEST LIKELIHOOD OF CONVECTIVE ACTIVITY WILL REMAIN EAST
OF THE BURN AREA. THE MARINE LAYER WILL BECOME DEEPER TONIGHT THUS SLIGHTLY
COOLER TEMPERATURES EXPECTED WEDNESDAY. A STORM SYSTEM WILL APPROACH THE
REGION THURSDAY LEADING TO COOLER TEMPERATURES AND AN INCREASED CHANCE OF
PRECIPITATION HEADING INTO THE WEEKEND.


.TODAY...

MAX TEMPERATURE.....AROUND 88 TO 95.
MIN HUMIDITY........18 TO 24 PERCENT.
EYE LEVEL WINDS.....UPSLOPE OR WEST 2 TO 4 MPH IN THE
                    AFTERNOON.
MIXING HEIGHT.......300 FT AGL INCREASING TO 8800 FT AGL LATE IN
                    THE MORNING...THEN INCREASING TO 16800 FT AGL
                    EARLY IN THE AFTERNOON DECREASING TO 0 FT AGL
                    LATE IN THE AFTERNOON.
MIXING WINDS........SOUTHWEST AROUND 4 TO 7 MPH.

$$
FORECASTER...TONKIN
REQUESTED BY...BEN BEAVER
TYPE OF REQUEST...PRESCRIBED
.TAG 20090421.OSBFS.01/EKA