FNUS76 KSGX 251227
FWSSGX

SPOT FORECAST FOR GUN...SBNF LYT
NATIONAL WEATHER SERVICE SAN DIEGO CA
527 AM PDT MON MAR 25 2013

FORECAST IS BASED ON REQUEST TIME OF 0800 PDT ON MARCH 25.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

...CRITICAL FIRE WEATHER PATTERN TONIGHT WITH RIDGE
BREAKING DOWN...INCREASING WINDS AND LOWERING HUMIDITY...

.DISCUSSION...
HIGH PRESSURE RIDGE ALOFT BUILDING TODAY FOR WARMER AND DRIER
CONDITIONS THAN LAST TWO DAYS. SOME CIRRUS CLOUDS WILL BE
PRESENT BUT AIR MASS WILL REMAIN STABLE. GENERAL WINDS WEAKENING
TO LESS THAN 15 MPH SHOULD ALLOW SLOPE WINDS TO DOMINATE.

FOR TONIGHT THE RIDGE WILL TEMPORARILY BREAK DOWN AND MOVE EAST
AS A TROUGH PUSHES BY TO THE NORTH. EXPECT LITTLE TO NO RECOVERY
OF HUMIDITY OVERNIGHT AND WINDS TO INCREASE AND DOUBLE IN STRENGTH
FROM THE SOUTHWEST. LOWEST HUMIDITY OCCURRING DURING THE EARLY
MORNING HOURS TUESDAY.

ON TUESDAY WINDS SHIFT TO THE WEST AND DIMINISH TO LESS THAN 15 MPH
TEMPERATURES COOL ABOUT 4 DEGREES AND HUMIDITY INCREASES SLIGHTLY IN
THE AFTERNOON BUT STILL REMAINS CRITICALLY DRY.


.TODAY...

SKY/WEATHER.........MOSTLY SUNNY...BECOMING PARTLY CLOUDY.
MAX TEMPERATURE.....AROUND 67.
MIN HUMIDITY........15 PERCENT.
EYE LEVEL WIND..........
   SLOPES...........UPSLOPE 3 TO 5 MPH.
   RIDGETOP.........WEST 5 MPH WITH GUSTS 10 MPH. I
CHC WETTING RAIN....0 PERCENT.
LAL.................1.
MIXING HEIGHT.......WEAK INVERSION WITHIN 500 FT AGL UNTIL 0930 PDT...
                    LIFTING TO 4500 FT AGL BETWEEN 1100-1530 PDT...
                    LOWERING TO 2500 FT AGL AFTER 1530 PDT.
MIXING WINDS........WEST 5 MPH...BECOMING
                    SOUTHWEST 10 MPH IN THE LATE AFTERNOON.           .

.TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY.
MIN TEMPERATURE.....AROUND 42.
MAX HUMIDITY........25 PERCENT OCCURRING BEFORE MIDNIGHT...THEN
                    FALLING TO 12 PERCENT AFTER 2 AM PDT.
EYE LEVEL WIND................
   SLOPES...........SOUTHWEST 6 MPH GUSTING 15 MPH.
   RIDGETOP.........SOUTHWEST 10 MPH GUSTING 25 MPH.
CHC WETTING RAIN....0 PERCENT.
LAL.................1.
MIXING HEIGHT.......500 FT AGL.
MIXING WINDS........SOUTHWEST 20 MPH.

.TUESDAY...

SKY/WEATHER.........MOSTLY SUNNY.
MAX TEMPERATURE.....AROUND 63.
MIN HUMIDITY........15 PERCENT.
EYE LEVEL WIND................
   SLOPES...........UPSLOPE/SOUTHWEST 3 TO 5 MPH WITH GUSTS 15 MPH.
   RIDGETOP.........WEST 10 MPH WITH GUSTS TO 20 MPH.
CHC WETTING RAIN....0 PERCENT.
LAL.................1.
MIXING HEIGHT.......500 FT AGL UNTIL 0800 PDT...THEN
                    4000 FT AGL UNTIL 1500 PDT...THEN LOWERING TO
                    1500 FT AGL AFTER 1500 PDT.
MIXING WINDS........WEST 7 MPH...BECOMING
                    SOUTHWEST 10 MPH IN THE LATE AFTERNOON.

.OUTLOOK...THE HIGH PRESSURE RIDGE REMAINS WEAK ON WEDNESDAY
SO LOOK FOR LITTLE CHANGE IN WIND...TEMPS OR HUMIDITY.
THE RIDGE REBUILDS ON THURSDAY WITH THE AXIS WEST OF THE BURN SITE.
ON FRIDAY THE RIDGE CONTINUES TO BUILD BUT THE AXIS AGAIN MOVES
TO THE EAST OF THE BURN FOR WINDS BACKING TO THE SOUTHEAST.
ON SATURDAY THE RIDGE BREAKS DOWN AGAIN AS A LATE SEASON STORM
APPROACHES SOUTHERN CALIFORNIA. BY SUNDAY WETTING RAIN TURNING TO
SNOW IS POSSIBLE.

.WEDNESDAY...
PARTLY CLOUDY. LOWS AROUND 40. HIGHS AROUND 61. WINDS SOUTHWEST
10 MPH. MAX RH 65 PERCENT. MIN RH 35 PERCENT.
.THURSDAY THROUGH FRIDAY...
PARTLY CLOUDY. LOWS AROUND 45. HIGHS 66 TO 71. WINDS SOUTH
10 MPH. MAX RH 60 PERCENT. MIN RH 25 PERCENT.

$$
FORECASTER...ROB BALFOUR
REQUESTED BY...K HANINGER
TYPE OF REQUEST...WILDFIRE
.TAG 20130325.GUN__.01/SGX