FNUS76 KSGX 171543
FWSSGX

SPOT FORECAST FOR ANNUAL WILDLAND FIRE DRILL - DAY 1...CNTY SD
NATIONAL WEATHER SERVICE SAN DIEGO CA
843 AM PDT FRI APR 17 2009

FORECAST IS BASED ON IGNITION TIME OF 0900 PDT ON APRIL 18.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
A WARMING TREND TODAY THROUGH MONDAY AS A WEAK SANTA ANA WIND PATTERN
DEVELOPS. WARMEST DAYS AND STRONGEST EAST WINDS ARE EXPECTED ON
SUNDAY AND MONDAY. TUESDAY IS EXPECTED TO BE A TRANSITION DAY WITH
CONTINUED HOT AND DRY WEATHER BUT WINDS SHIFTING TO WEST IN THE
AFTERNOON. A COOLING TREND WEDNESDAY AND THURSDAY WITH INCREASING
WEST WINDS AS THE HIGH BREAKS DOWN AND A TROUGH APPROACHES FROM
THE NORTHWEST. THE MARINE LAYER MAY DEEPEN ENOUGH BY THURSDAY
MORNING TO IMPACT AIRPORTS BELOW 1500 FEET MSL.

.SATURDAY...

SKY/WEATHER.........SUNNY.
MAX TEMPERATURE.....NEAR 90 VALLEY FLOOR/2400 FT
                    NEAR 85 AT 2900 FT
                    NEAR 77 ATOP VIEJAS MOUNTAIN/4100 FT.

MIN HUMIDITY........9-13 PERCENT.

WIND................
   SLOPES...........EAST TO NORTHEAST 5 TO 10 MPH...WITH GUSTS
                    15 MPH DOWN ALIGNED VALLEYS.

   RIDGETOP.........NORTHEAST 10 MPH GUSTS 15 TO 20 MPH.

CHC WETTING RAIN....0 PERCENT.
LAL.................1.

MIXING HEIGHT.......6000-7500 FT AGL.
MIXING WINDS........NORTHEAST 5 TO 10 MPH.

TIME (PDT)      9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........0   0   0   0   0   0   0   0   0
WEATHER COV.....
WEATHER TYPE....
TEMP............62  71  77  82  84  88  88  87  83
RH..............23  16  14  12  12  11  11  12  15
20 FT WIND DIR..E   E   NE  NE  NE  NE  NE  NE  NW
20 FT WIND SPD..4   4   4   4   4   4   4   4   4
20 FT WIND GUST.5   5   10  10  10  10  5   5   10

AIR OPERATIONS...
CEILING AND VISIBILITY UNLIMITED ALL AIRPORTS.
LIGHT TO MODERATE TURBULENCE BELOW FL100 OVER AND WEST
OF HIGHER MOUNTAINS.

WINDS ALOFT...DIRECTION/SPEED IN KNOTS
           8AM         11AM        2PM          5PM
FL100   030/12      025/09      035/09       045/13
FL090      040/13      030/10      040/10       045/14
FL080      045/13      045/11      045/09       050/13
FL070      055/13      060/11      060/08       055/10
FL060      055/12      070/10      070/10       060/08
FL050      060/13      065/12      070/12       065/11
FL040      070/10      065/11      070/12       060/10
FL030      055/05      060/06      070/08       050/05
$$
FORECASTER...ROB BALFOUR
REQUESTED BY...RON HUFF
TYPE OF REQUEST...PRESCRIBED
.TAG 20090418.ANNUA.01/SGX