FNUS76 KSGX 061159
FWSSGX

SPOT FORECAST FOR MANNING FB...CNF TRAB
NATIONAL WEATHER SERVICE SAN DIEGO CA
459 AM PDT TUE APR 6 2010

FORECAST IS BASED ON IGNITION TIME OF 0700 PDT ON APRIL 06.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...VERY DRY WITH WARM DAYS THROUGH THURSDAY AS HIGH
PRESSURE BUILDS TO THE NORTH. THE WEATHER PATTERN IS FAVORABLE FOR
MODERATE TO STRONG SANTA ANA WINDS. HOWEVER AN INVERSION
DEVELOPING TONIGHT BETWEEN 2000-2700 FEET MSL SHOULD BE STRONG
ENOUGH TO KEEP THE WINDS FROM SURFACING OVER THE PROPOSED BURN
ELEVATIONS UNTIL WEDNESDAY MORNING. FOR MID TO LATE WEDNESDAY
MORNING THROUGH THURSDAY MORNING THE PREVAILING WIND FLOW WILL BE
FROM THE NORTHEAST/UP CANYON...BUT BE ALERT FOR A WIND SHIFT TO THE
SOUTHWEST/DOWN CANYON DURING THE MID TO LATE AFTERNOONS...AS SOON
AS THE UPPER SLOPES BECOME SHADED. HIGH PRESSURE WILL WEAKEN ON
FRIDAY RESULTING IN A COOLING AND MOISTENING TREND THAT WILL
CONTINUE THROUGH THE COMING WEEKEND. ANOTHER PACIFIC STORM MAY
BRING WETTING RAIN EARLY NEXT WEEK.

.TODAY...

SKY/WEATHER.........MOSTLY SUNNY.
MAX TEMPERATURE.....AROUND 62.
MIN HUMIDITY........25 PERCENT.
WIND................
 MID SLOPES.........UPSLOPE/NORTHEAST 5 TO 10 MPH WITH HIGHER GUSTS.
 UPR SLP/RIDGETOP...NORTH 10 TO 15 MPH...BECOMING NORTHEAST 25 MPH
                    WITH HIGHER GUSTS.
CWR.................0 PERCENT.
LAL.................1.
MIXING HEIGHT.......500-2000 FT AGL...BECOMING 2000-3000 FT AGL
                    EARLY IN THE AFTERNOON.
MIXING WINDS........NORTH 5 MPH...BECOMING 10 MPH LATE IN THE
                    AFTERNOON.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLEAR.
MIN TEMPERATURE.....AROUND 48.
MAX HUMIDITY........35 PERCENT.
WIND................
 MID SLOPES.........DOWNSLOPE 1 TO 2 MPH.
 UPR SLP/RIDGETOP...NORTHEAST 20 TO 25 MPH. GUSTS 35 MPH.
CWR.................0 PERCENT.
LAL.................1.
MIXING HEIGHT.......500 FT AGL.
MIXING WINDS........NORTHEAST 20 TO 30 MPH.

.WEDNESDAY...

SKY/WEATHER.........MOSTLY SUNNY.
MAX TEMPERATURE.....AROUND 69.
MIN HUMIDITY........15 PERCENT.
WIND................
 MID SLOPES.........DOWNSLOPE/VARIABLE 3 TO 5 MPH UNTIL MID MORNING...
                    THEN NORTHEAST 5 TO 15 MPH GUSTS TO 30 MPH FROM
                    MID MORNING TIL MID AFTERNOON...
                    THEN DIMINISHING AND BECOMING DOWNSLOPE/SOUTHWEST
                    5 TO 10 MPH DURING THE LATE AFTERNOON.
 UPR SLP/RIDGETOP...NORTHEAST 10 TO 20 MPH WITH GUSTS TO 35 MPH
                    DIMINISHING TO EAST 5 TO 10 MPH BY MID AFTERNOON.
CWR.................0 PERCENT.
LAL.................1.
MIXING HEIGHT.......500-2000 FT AGL...BECOMING 2500-3000 FT AGL
                    EARLY IN THE AFTERNOON.
MIXING WINDS........NORTHEAST 20 TO 30 MPH...BECOMING 10 TO 15 MPH
                    EARLY IN THE AFTERNOON.

TIME (PDT)      6 AM      9 AM      NOON      3 PM
SKY (%).........6         6         11        11
WEATHER COV.....
WEATHER TYPE....NONE      NONE      NONE      NONE
TEMP............49        59        67        69
RH..............32        19        14        15
20 FT WIND DIR..NE-SW     NE        NE        NE-SW
20 FT WIND SPD..3         12        12        5
20 FT WIND GUST.5         35        25        10

.FORECAST DAYS 3 THROUGH 5...
.THURSDAY...
MOSTLY CLEAR. LOWS AROUND 53. MAXIMUM RH 25-35 PERCENT. HIGHS AROUND 70.
MINIMUM RH 13 PERCENT. WINDS NORTHEAST 10 MPH SWITCHING TO SOUTHWEST IN
THE AFTERNOON.
.FRIDAY...
MOSTLY CLEAR. LOWS AROUND 54. HIGHS AROUND 66. MINIMUM HUMIDITY 25 PERCENT
OCCURRING DURING THE MORNING HOURS WITH HUMIDITY INCREASING TO 40
PERCENT DURING THE AFTERNOON. WINDS UPSLOPE 2 TO 5 MPH BECOMING
SOUTHWEST 10 MPH WITH GUSTS 25 MPH IN THE AFTERNOON.
.SATURDAY...
PARTLY CLOUDY. PATCHY FOG. LOWS AROUND 51. HIGHS AROUND 63.
MAXIMUM RH 100 PERCENT. MINIMUM RH 45 PERCENT. WINDS SOUTHWEST 10 MPH.

$$
FORECASTER...ROB BALFOUR
REQUESTED BY...JACOB GIPSON
TYPE OF REQUEST...PRESCRIBED
.TAG 20100406.MANNI.01/SGX