FNUS76 KSGX 101445
FWSSGX

SPOT FORECAST FOR 2011 SD COUNTY WILDLAND FIRE DRILL - TUESDAY...CNTY SD
NATIONAL WEATHER SERVICE SAN DIEGO CA
745 AM PDT TUE MAY 10 2011

FORECAST IS BASED ON IGNITION TIME OF 0900 PDT ON MAY 17.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
A DISSIPATING FRONTAL TROUGH OVER SOUTHWEST ARIZONA AND BUILDING
HIGH PRESSURE RIDGE OVER NORTHERN CALIFORNIA. FOR THIS OPERATIONAL
PERIOD...EXPECT THE GENERAL/RIDGE LEVEL WINDS TO SHIFT FROM
NORTHWEST TO NORTH...AND THE MARINE LAYER TO LOWER FROM 1000 FEET TO
AROUND 700 FEET. THE UPPER SLOPES AND RIDGES WILL BE UNDER THE
INFLUENCE OF A DRIER AIR MASS...WHILE THE MID AND LOWER ELEVATIONS
CONTINUE IN THE MARINE AIR.

.TODAY...TUESDAY MAY 17 2011...

SKY/WEATHER.........MOSTLY SUNNY.
MAX TEMPERATURE.....70 LOWER ELEVATIONS AND 65 RIDGES.
MIN HUMIDITY........45 PERCENT LOWER ELEVATIONS...AND 25 PERCENT RIDGES.
20 FT WIND..........
   SLOPES...........NORTHEAST 5 MPH EARLY IN THE MORNING...BECOMING
                    UPSLOPE/SOUTHWEST 2 TO 5 MPH LATE MORNING...THEN
                    NORTHWEST 10 MPH WITH GUSTS 20 MPH IN THE AFTERNOON.

   RIDGES...........NORTHWEST TO NORTH 5 TO 10 MPH

TIME (PDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........28  28  28  28  28  20  20  20  20  20  20  14
WEATHER COV.....
WEATHER TYPE....
TEMP............50  51  55  60  64  67  68  69  69  70  69  68
RH..............81  83  72  62  52  47  45  44  44  43  45  47
20 FT WIND DIR..E   E   SE  SE  SW  SW   W  NW  NW  NW  NW  NW
20 FT WIND SPD..2   3   0   0   0   3    4  5   8   8   8   8
20 FT WIND GUST.5   5   2   1   3   5    8  10  20  20  20  15

$$
FORECASTER...ROB BALFOUR
REQUESTED BY...KEN KREMENSKY
TYPE OF REQUEST...PRESCRIBED
.TAG 20110517.2011S.01/SGX