FNUS76 KSGX 140849 FWSSGX SPOT FORECAST FOR JAPATUL PILE BURN...CNF DESC NATIONAL WEATHER SERVICE SAN DIEGO CA 149 AM PDT THU APR 14 2011 FORECAST IS BASED ON IGNITION TIME OF 0930 PDT ON APRIL 14. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. ...WARMER AND DRIER THROUGH SATURDAY... ...COOLER SUNDAY AND MONDAY WITH A MOISTENING TREND... .DISCUSSION... HIGH PRESSURE OVER NORTHERN CALIFORNIA AND NEVADA...AND LOW PRESSURE OVER THE GULF OF CALIFORNIA WILL CREATE GENERAL WINDS FROM THE NORTH TODAY AND NORTHEAST TONIGHT. THESE WILL OPPOSE THE NORMAL UPSLOPE WINDS DURING THE DAY AND STRENGTHEN THE DOWNSLOPE WINDS TONIGHT. FOR FRIDAY AND SATURDAY A THERMAL TROUGH WILL DEVELOP OVER SOUTHEAST CALIFORNIA. THIS WILL SHIFT THE GENERAL WIND DIRECTION TO THE WEST. THE ALIGNMENT OF THE SLOPE/VALLEY WINDS WITH THE GENERAL WINDS SHOULD CREATE GUSTY WINDS DURING THE AFTERNOONS AND EVENINGS. LOOK FOR TEMPERATURES TO WARM ABOUT 10 DEGREES TODAY AND AGAIN FRIDAY AND WARM A FEW MORE DEGREES ON SATURDAY. FOR SUNDAY AND MONDAY...A COLD FRONT MOVING SOUTHEAST THROUGH NORTHERN AND CENTRAL CALIFORNIA SHOULD CAUSE THE MARINE LAYER TO DEEPEN ABOVE THE BURN SITE AND DROP TEMPERATURES 15 TO 20 DEGREES. .TODAY... SKY/WEATHER.........MOSTLY SUNNY. MAX TEMPERATURE.....AROUND 68...UP 8. MIN HUMIDITY........25 PERCENT..DOWN 30. EYE LEVEL WIND....... SLOPES...........VARIABLE/NORTH 0 TO 4 MPH IN THE MORNING... NORTHWEST 4 MPH WITH GUSTS 10 MPH IN THE AFTERNOON. RIDGETOP.........NORTH 5 TO 10 MPH. CHC WETTING RAIN....0 PERCENT. LAL.................1. MIXING HEIGHT.......1000 FT UNTIL 1000 PDT...THEN LIFTING TO 4000 FT AGL FROM 1030 PDT THROUGH 1530 PDT THEN LOWERING TO 2500 FT AGL LATE IN THE AFTERNOON. MIXING WINDS........NORTH 3 MPH IN THE MORNING...BECOMING NORTHWEST 6 MPH IN THE AFTERNOON. TIME (PDT) 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM SKY (%).........17 17 18 18 18 18 18 18 16 WEATHER COV..... WEATHER TYPE.... TEMP............55 60 64 65 68 67 67 66 65 RH..............38 33 30 29 27 27 27 29 34 EYE LEVEL WINDS DIR..N N N N N NW NW NW NW SPD..0 0 2 2 2 3 4 4 4 GUST. 3 4 5 6 8 10 10 .TONIGHT... SKY/WEATHER.........CLEAR. MIN TEMPERATURE.....AROUND 45. MAX HUMIDITY........60 PERCENT. EYE LEVEL WIND....... SLOPES...........NORTHEAST 5 MPH. RIDGETOP.........NORTHEAST TO EAST 5 MPH. CHC WETTING RAIN....0 PERCENT. LAL.................1. MIXING HEIGHT.......STRONG INVERSION DEVELOPING AFTER 2000 PDT WITHIN 200 FT OF GROUND. MIXING WINDS........NORTHEAST 0 TO 2 MPH. TIME (PDT) 6 PM 9 PM MIDNGT 3 AM SKY (%).........16 16 18 18 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE TEMP............62 51 52 48 RH..............44 60 42 23 EYE LEVEL WIND.. DIR..NW N NE E SPD..4 2 2 1 GUST.10 5 3 3 .FRIDAY... SKY/WEATHER.........SUNNY. MAX TEMPERATURE.....AROUND 78...UP 10. MIN HUMIDITY........15 PERCENT...DOWN 10. EYE LEVEL WIND...... SLOPES...........NORTHEAST 2 TO 5 MPH IN THE MORNING... WEST 5 MPH WITH GUSTS 10 MPH IN THE AFTERNOON. RIDGETOP.........NORTHEAST 5 MPH IN THE MORNING... NORTHWEST 5 TO 10 MPH IN THE AFTERNOON. CHC WETTING RAIN....0 PERCENT. LAL.................1. MIXING HEIGHT.......STRONG INVERSION WITHIN 500 FT AGL UNTIL 0800 PDT... 5000 FT AGL 1000-1500 PDT...LOWERING TO 2000 FT AGL LATE IN THE AFTERNOON. MIXING WINDS........NORTH 0-3 MPH IN THE MORNING... NORTHWEST 7 MPH IN THE AFTERNOON. TIME (PDT) 6 AM 9 AM NOON 3 PM SKY (%).........16 16 14 14 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE TEMP............47 60 75 78 RH..............22 22 17 21 EYE LEVEL WINDS.. DIR..NE E NW NW SPD..2 2 2 4 GUST.3 5 4 10 .FORECAST DAYS 3 THROUGH 5... .FRIDAY NIGHT AND SATURDAY... CLEAR. LOWS AROUND 47. HIGHS AROUND 80. EYE LEVEL WINDS WEST 5 MPH WITH GUSTS 15 MPH IN THE AFTERNOON. MINIMUM RELATIVE HUMIDITY 20 PERCENT. .SATURDAY NIGHT AND SUNDAY... INCREASING CLOUDS. LOWS AROUND 50. HIGHS AROUND 74. EYE LEVEL WINDS WEST 5 TO 10 MPH WITH GUSTS 20 MPH IN THE AFTERNOON AND EVENING. MINIMUM RELATIVE HUMIDITY 32 PERCENT. .SUNDAY NIGHT AND MONDAY... MOSTLY CLOUDY. PATCHY FOG. LOWS AROUND 46. HIGHS AROUND 66. EYE LEVEL WINDS SOUTHWEST 5 TO 10 MPH WITH GUSTS 20 MPH. MINIMUM RELATIVE HUMIDITY 45 PERCENT. $$ FORECASTER...ROB BALFOUR REQUESTED BY...A KOELLER TYPE OF REQUEST...PRESCRIBED .TAG 20110414.JAPAT.01/SGX