FNUS76 KSGX 171341 AAA FWSSGX SPOT FORECAST FOR MCCAIN VMP - 0700 PDT JUNE 17...UPDATED NATIONAL WEATHER SERVICE SAN DIEGO CA 641 AM PDT THU JUN 17 2010 FORECAST IS BASED ON IGNITION TIME OF 0700 PDT ON JUNE 17. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... HIGH PRESSURE SURFACE AND ALOFT OVER NEVADA SHOULD CAUSE THE GENERAL WINDS TO BECOME LIGHT EAST TO NORTHEAST THROUGH EARLY NOON TODAY. HOWEVER THE LOCAL UPSLOPE WINDS MAY BE OVERPOWER THESE. AS A RESULT WINDS MAY BE LIGHT AND VARIABLE THROUGH EARLY AFTERNOON... BEFORE THE WIND DIRECTION BECOMES STEADY FROM THE SOUTHWEST. TEMPERATURES TODAY SHOULD BE AT LEAST 10 DEGREES WARMER...AND HUMIDITY ABOUT 5 PERCENT LOWER. THIS WARMING AND DRYING TREND WILL BE SHORT LIVED. ANOTHER TROUGH WILL BE APPROACHING THE AREA BY LATE FRIDAY AND MOVING ACROSS THE AREA THIS WEEKEND. .REST OF TODAY... SKY/WEATHER.........SUNNY. MAX TEMPERATURE.....90. MIN HUMIDITY........7 PERCENT. WIND (20 FT).............. MID SLOPES.........EAST 5 MPH IN THE MORNING BECOMING LIGHT...THEN SOUTHWEST 5 TO 10 MPH AND GUSTY IN THE AFTERNOON. UPR SLP/RIDGETOP...EAST 5 MPH IN THE MORNING...BECOMING SOUTHWEST 5 TO 10 MPH IN THE AFTERNOON. LAL.................1. MIXING HEIGHT.......WEAK INVERSION WITHIN 500 FT AGL UNTIL 0830 PDT... MIXING TO 4500 FT AGL LATE MORNNG THROUGH THE AFTERNOON. MIXING WINDS........EAST 4 MPH IN THE MORNING...BECOMING SOUTHWEST 5 MPH IN THE EARLY AFTERNOON AND SOUTHWEST 10 MPH LATE IN THE AFTERNOON. TIME (PDT) 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM SKY (%).........4 4 4 4 4 4 4 4 4 4 3 WEATHER COV..... WEATHER TYPE.... TEMP............57 69 77 80 83 89 90 90 90 88 86 RH..............21 14 11 10 9 7 8 8 10 13 18 20 FT WIND DIR..SW SW E E E E SW SW SW SW SW 20 FT WIND SPD..4 0 0 3 4 2 0 4 4 4 8 20 FT WIND GUST.7 5 6 6 8 5 3 5 5 5 20 .TONIGHT... SKY/WEATHER.........CLEAR. MIN TEMPERATURE.....AROUND 49. MAX HUMIDITY........45 PERCENT. WIND (20 FT).............. MID SLOPES.........WINDS WEST 5 TO 15 MPH. GUSTS TO 25 MPH IN THE EVENING. UPR SLP/RIDGETOP...SOUTHWEST 5 TO 10 MPH...BECOMING 10 TO 15 MPH EARLY IN THE EVENING. LAL.................1. MIXING HEIGHT.......4500 FT AGL...BECOMING 500 FT AGL EARLY IN THE EVENING. MIXING WINDS........SOUTHWEST 5 TO 10 MPH...BECOMING 15 TO 20 MPH. TIME (PDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM SKY (%).........3 3 3 3 3 5 5 5 5 5 5 3 WEATHER COV..... WEATHER TYPE.... TEMP............80 76 69 64 60 58 56 54 53 52 50 49 RH..............19 22 28 33 39 42 43 43 42 43 43 43 20 FT WIND DIR..SW SW SW SW SW SW SW SW SW SW SW SW 20 FT WIND SPD..8 8 8 4 4 4 4 4 6 6 6 6 20 FT WIND GUST.15 15 15 12 12 12 12 12 12 12 12 15 $$ FORECASTER...ROB BALFOUR REQUESTED BY...JON HEGGIE FIRE CAPTAIN TYPE OF REQUEST...PRESCRIBED .TAG 20100617.MCCAI.01/SGX