FNUS76 KSGX 251847
FWSSGX

SPOT FORECAST FOR CA-CNF-MESA...CNF MONT
NATIONAL WEATHER SERVICE SAN DIEGO CA
1147 AM PDT WED AUG 25 2010

FORECAST IS BASED ON REQUEST TIME OF 1135 PDT ON AUGUST 25.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...HIGH PRESSURE CENTERED OVER FOUR CORNERS REGION
WILL CONTINUE THE HOT TEMPERATURES AND GENERAL WINDS FROM THE
EAST AND SOUTHEAST TODAY. IN ADDITION THE AIR MASS IS MOIST AND
UNSTABLE ENOUGH FOR A MIXTURE OF DRY AND WET THUNDERSTORMS
THIS AFTERNOON THROUGH EARLY EVENING. EVEN THOUGH THUNDERSTORMS
MAY NOT FORM DIRECTLY OVER THE INCIDENT...STRONG DOWNDRAFT WINDS
FROM DISTANT THUNDERSTORMS MAY BE FUNNELED DOWN THE SAN DIEGO RIVER
AND OTHER ALIGNED DRAINAGES LEADING TOWARDS THE MESA FIRE.

FOR THURSDAY AND FRIDAY THE GENERAL WINDS WILL BE FROM THE SOUTHWEST.
THESE WILL ADD TO THE NORMAL UP VALLEY AFTERNOON AND EVENING
WINDS. WIND GUSTS OVER 35 MPH ARE POSSIBLE ON FRIDAY. WARM AND DRY
AIR WILL STILL BE OVER THE INCIDENT FOR THESE DAYS.

BY SATURDAY A SIGNIFICANT COOLING AND MOISTENING IS EXPECTED AS THE
MARINE AIR SURGES INLAND ACROSS ELEVATIONS BELOW 2000 FEET.

.TODAY...

SKY/WEATHER.........PARTLY CLOUDY. CHANCE OF THUNDERSTORMS DURING THE
                    AFTERNOON.
MAX TEMPERATURE.....AROUND 107.
MIN HUMIDITY........15 PERCENT.
WIND................
   SLOPES...........EAST TO NORTHEAST 10 MPH. GUSTS TO 20 MPH.
   RIDGETOP.........EAST 5 MPH AND GUSTY BECOMING LIGHT.
CHC WETTING RAIN....5 PERCENT.
LAL.................2.
MIXING HEIGHT.......15000 FT AGL.
MIXING WINDS........NORTHEAST 5 TO 10 MPH.

TIME (PDT)      11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........34  34  34  34  34  34  37
WEATHER COV.....
WEATHER TYPE....
TEMP............104 106 106 105 102 98  94
RH..............19  17  15  16  19  26  34
20 FT WIND DIR..E   E   E   E   E   E   NE
20 FT WIND SPD..8   8   8   4   4   4   4
20 FT WIND GUST.10  10  10  10  10  10  10
EYE LVL WND DIR.E   E   E   E   E   E   NE
EYE LVL WND SPD.8   8   8   4   4   4   4
EYE LVL WND GST.10  10  10  10  10  10  10

$$
FORECASTER...ROB BALFOUR
REQUESTED BY...DISPATCHER
TYPE OF REQUEST...WILDFIRE
.TAG 20100825.CACNF.01/SGX