FNUS75 KVEF 281636 FWSVEF SPOT FORECAST FOR RAINBOW RX...USFS NATIONAL WEATHER SERVICE LAS VEGAS NV 936 AM PDT THU APR 28 2011 FORECAST IS BASED ON IGNITION TIME OF 0900 PDT ON APRIL 28. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...A LOW PRESSURE SYSTEM OVER THE PAC NW WILL PASS NORTH OF THE REGION OVER THE NEXT 24-36 HOURS AND RESULT IN INCREASED SOUTHWEST WINDS ACROSS THE REGION. AT THE BURN SITE...THIS WILL LIKELY RESULT IN 20 FT WINDS BECOMING SOUTHWESTERLY BY NOON TODAY ONCE THE STRONGER WINDS ALOFT MIX DOWN. UNTIL THAT OCCURS AN UPSLOPE WIND CAN BE EXPECTED. WINDS WILL THEN REMAIN OUT OF THE WEST/SOUTHWEST THROUGH FRIDAY AFTERNOON. .TODAY... SKY/WEATHER.........SUNNY. MAX TEMPERATURE.....52-57. MIN HUMIDITY........20-25 PERCENT. 20 FT-10 MIN AVG..UPSLOPE AROUND 8-10 MPH...BECOMING SOUTHWEST AT 11 TO 21 MPH...WITH GUSTS UP 35 MPH IN THE AFTERNOON. 10K FT WIND.......SOUTHWEST 28 TO 33 MPH INCREASING TO WEST 33 TO 38 MPH IN THE AFTERNOON. MIXING HEIGHT.......6000 FT AGL. TRANSPORT WINDS.....SOUTH 11 TO 20 KNOTS INCREASING TO SOUTHWEST 24 TO 32 KNOTS IN THE AFTERNOON. VENTILATION.........EXCELLENT. .TONIGHT... SKY/WEATHER.........PARTLY CLOUDY. MIN TEMPERATURE.....40-45. MAX HUMIDITY........38-43 PERCENT. 20 FT-10 MIN AVG..SOUTHWEST WINDS 24 TO 29 MPH WITH GUSTS TO AROUND 45 MPH BECOMING WEST AROUND 10 MPH WITH GUSTS TO AROUND 30 MPH AFTER MIDNIGHT. 10K FT WIND.......SOUTHWEST 36 TO 41 MPH BECOMING WEST 29 TO 34 MPH AFTER MIDNIGHT. MIXING HEIGHT.......4500 FT AGL. TRANSPORT WINDS.....SOUTHWEST 23 TO 29 KNOTS DECREASING TO 6 TO 7 KNOTS AFTER MIDNIGHT. VENTILATION.........EXCELLENT. $$ FORECASTER...KENNEDY REQUESTED BY...HENRY RAMIREZ TYPE OF REQUEST...PRESCRIBED .TAG 20110428.RAINB.01/VEF