FNUS76 KSTO 220012
FWSSTO

SPOT FORECAST FOR LAKHEAD BLOCK "A"
NATIONAL WEATHER SERVICE SACRAMENTO CA
512 PM PDT SAT APR 21 2012

IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER SERVICE.

SPOT FORECAST FOR LAKHEAD BLOCK  A...USFS
NATIONAL WEATHER SERVICE SACRAMENTO CA
510 PM PDT SAT APR 21 2012

FORECAST IS BASED ON IGNITION TIME OF 0900 PDT ON APRIL 22.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
HIGH PRESSURE OVER THE BURN SITE SATURDAY WILL BEGIN TO SHIFT
EASTWARD ON SUNDAY. THIS WILL LEAD TO A SLIGHT DECREASE IN MAX
TEMPERATURES...AND LITTLE CHANGE TO A SLIGHT INCREASE IN HUMIDITY ON
SUNDAY. WINDS WILL CONTINUE TO BE DIURNALLY INFLUENCED WITH NORTH
WINDS IN THE MORNING BECOMING SOUTH BY AFTERNOON.

SOUTHERLY FLOW WILL INCREASE ON MONDAY AND A WEAK UPPER AIR
DISTURBANCE WILL MOVE OVER THE AREA AND MAY TRIGGER ISOLATED SHOWERS
OR STORMS OVER OR NEAR THE BURN SITE LATE IN THE AFTERNOON AND
EVENING.

.TONIGHT...

SKY/WEATHER.........CLEAR.
MIN TEMPERATURE.....53-58.
MAX HUMIDITY........50-60 PERCENT.
WIND (20 FT)........
   SLOPE/VALLEY.....LIGHT WINDS BECOMING NORTH 4 TO 9 MPH AFTER
                    MIDNIGHT.
   RIDGETOP.........LIGHT WINDS BECOMING NORTH 5 TO 10 MPH AFTER
                    MIDNIGHT.
MIXING HEIGHT.......5000 FT AGL DECREASING TO LESS THAN 500 FT AGL
                    BY LATE EVENING.
MIXING WINDS........LIGHT WINDS BECOMING NORTH 5 TO 10 MPH AFTER
                    IN THE AFTERNOON.

.SUNDAY...

SKY/WEATHER.........SUNNY THEN BECOMING PARTLY CLOUDY.
MAX TEMPERATURE.....83-86.
MIN HUMIDITY........30-35 PERCENT.
WIND (20 FT)........
   SLOPE/VALLEY.....NORTH WINDS 4 TO 9 MPH BECOMING SOUTH 3 TO 7 MPH
                    IN THE AFTERNOON.
   RIDGETOP.........NORTH WINDS 5 TO 10 MPH BECOMING SOUTH 4 TO 8
                    MPH IN THE AFTERNOON.
MIXING HEIGHT.......LESS THAN 500 FT AGL INCREASING TO 5500 FT AGL.
MIXING WINDS........NORTH WINDS 5 TO 10 MPH BECOMING SOUTH 4 TO 8
                    MPH IN THE AFTERNOON.

.SUNDAY NIGHT...

SKY/WEATHER.........CLEAR.
MIN TEMPERATURE.....51-56.
MAX HUMIDITY........60-70 PERCENT.
WIND (20 FT)........
   SLOPE/VALLEY.....SOUTH WINDS 4 TO 7 MPH SHIFTING TO THE NORTH 4
                    TO 8 MPH AFTER MIDNIGHT.
   RIDGETOP.........SOUTH WINDS 4 TO 8 MPH SHIFTING TO THE NORTH 5
                    TO 10 MPH AFTER MIDNIGHT.
MIXING HEIGHT.......5500 FT AGL DECREASING TO LESS THAN 500 FT AGL
                    BY LATE EVENING.
MIXING WINDS........SOUTH WINDS 4 TO 8 MPH SHIFTING TO THE NORTH 5
                    TO 10 MPH AFTER MIDNIGHT.

.MONDAY...

SKY/WEATHER.........BECOMING MOSTLY CLOUDY. A SLIGHT CHANCE OF
                    SHOWERS OR THUNDERSTORMS IN THE AFTERNOON
                    AND EVENING.
MAX TEMPERATURE.....78-82.
MIN HUMIDITY........40-45 PERCENT.
WIND (20 FT)........
   SLOPE/VALLEY.....NORTH WINDS 3 TO 6 MPH BECOMING SOUTH 5 TO 8 MPH
                    IN THE AFTERNOON.
   RIDGETOP.........SOUTH 9 TO 15 MPH.
MIXING HEIGHT.......RISING TO 3500 TO 4000 FT AGL.
MIXING WINDS........SOUTH 8 TO 12 MPH.

FORECASTER...TGD/JHM
REQUESTED BY...BEN NEWBURN
REASON FOR REQUEST...PRESCRIBED

$$

REQUESTED BY...BEN NEWBURN
REASON FOR REQUEST...UNDER THE INTERAGENCY AGREEMENT FOR METEOROLOGICAL SERVICES (USFS, BLM, NPS, U