FNUS76 KSGX 231322
FWSSGX

SPOT FORECAST FOR ANNUAL WILDLAND FIRE DRILL - DAY 4...CNTY SD
NATIONAL WEATHER SERVICE SAN DIEGO CA
622 AM PDT THU APR 23 2009

FORECAST IS BASED ON IGNITION TIME OF 0900 PDT ON APRIL 23.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...WEAK HIGH PRESSURE RIDGE MOVING ACROSS THE AREA
TODAY. MARINE LAYER DEPTH WILL BE LIFTING TO NEAR 4000 FEET THIS
EVENING.

.TODAY...

SKY/WEATHER.........FOG IN THE MORNING THEN PARTLY CLOUDY.
MAX TEMPERATURE.....AROUND 79.
MIN HUMIDITY........25 PERCENT.
WIND................
   SLOPES...........LIGHT WINDS BECOMING WEST 10 MPH AND GUSTY
                    EARLY IN THE MORNING.
   RIDGETOP.........SOUTHWEST 10 TO 15 MPH...BECOMING 20 MPH LATE
                    IN THE AFTERNOON.
GUSTS TO 20 MPH LATE IN THE MORNING.
MIXING HEIGHT.......500-2000 FT AGL.
MIXING WINDS........SOUTH 5 MPH BECOMING SOUTHWEST 5 TO 10 MPH LATE
                    IN THE MORNING.


TIME (PDT)      9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........80  28  29  29  29  29  29  29  36
WEATHER COV.....BKN SCT
WEATHER TYPE....FOG FOG
TEMP............64  71  74  77  78  77  78  77  75
RH..............40  32  29  27  28  29  30  31  33
20 FT WIND DIR..W   W   W   W   W   W   W   W   W
20 FT WIND SPD..4   4   8   8   8   4   4   4   8
20 FT WIND GUST.5   5   20  20  20  10  10  10  10

AIR OPERATIONS...
UNTIL 1200 PDT...OVERCAST-BROKEN CLOUDS BETWEEN FL020-FL030
VISIBILITY 3-5 MILES BELOW THIS LAYER. SKC ABOVE THIS LAYER.

1200-1700 PDT...SCATTERED CLOUDS FL030-040 TERRAIN OBSCURED.

WINDS (KTS)...TEMP/DP (C)
            8AM            11AM               2PM          5PM
       DIR/SP   T/TD    DIR/SP   T/TD    DIR/SP   T/TD    DIR/SP   T/TD
FL100  280/11   8/-13   270/11  06/-12   250/17  06/-13   225/21  07/-30
FL090  285/11   9/-10   270/10  09/-10   250/16  09/-12   255/20  09/-29
FL080  290/10  11/-08   270/08  11/-09   245/14  11/-10   250/19  10/-25
FL070  300/11  13/-07   270/07  13/-06   240/13  12/-09   250/18  11/-18
FL060  295/13  14/-07   270/07  14/-05   240/13  13/-07   245/17  12/-10
FL050  290/11  15/-05   260/06  15/-03   230/12  13/-05   240/16  12/-02
FL040  270/08  14/-03   235/07  13/-03   225/10  12/05    230/12  10/06
FL030  210/05  08/06    245/08  13/09    245/09  12/10    240/08  11/09


$$
FORECASTER...ROB BALFOUR
REQUESTED BY...RON LAFF
TYPE OF REQUEST...PRESCRIBED
.TAG 20090423.ANNUA.01/SGX