FNUS75 KGJT 050540 FWSGJT SPOT FORECAST FOR PINEY PILES...USFS NATIONAL WEATHER SERVICE GRAND JUNCTION CO 1040 PM MST THU FEB 4 2010 FORECAST IS BASED ON IGNITION TIME OF 1205 MST ON FEBRUARY 05. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... A DIRTY RIDGE OF HIGH PRESSURE WILL OVER THE REGION TODAY BRINGING STABLE CONDITIONS AND LIGHT WINDS ALOFT...HELPING TO INHIBIT MIXING. THE RIDGE AXIS WILL SHIFT TO OUR EAST SATURDAY ALLOWING AN INCREASE IN MOISTURE AND WINDS ALOFT WILL BACK TO THE SOUTHWEST. .TODAY... SKY/WEATHER.........MOSTLY CLOUDY (60-70%). ISOLATED SHOWERS IN THE AFTERNOON. MAX TEMPERATURE.....24-29 F. WIND (20 FT)........SOUTH WINDS 5 MPH SHIFTING TO THE WEST IN THE AFTERNOON. SMOKE DISPERSAL.....REMAINING POOR (25200 KNOT-FT) THROUGH THE DAY. MIXING HEIGHT.......1000-1400 FT AGL INCREASING TO 2100 FT AGL IN THE AFTERNOON. TRANSPORT WINDS.....WEST 12 MPH. .TONIGHT... SKY/WEATHER.........MOSTLY CLOUDY (70-80%). SCATTERED SHOWERS. MIN TEMPERATURE.....15-20 F. WIND (20 FT)........SOUTH WINDS 5 MPH. SMOKE DISPERSAL.....POOR. MIXING HEIGHT.......DECREASING TO 1100-1600 FT AGL IN THE LATE EVENING AND OVERNIGHT. TRANSPORT WINDS.....WEST 12 MPH. .SATURDAY... SKY/WEATHER.........MOSTLY CLOUDY (70-80%). SCATTERED SHOWERS. MAX TEMPERATURE.....26-31 F. WIND (20 FT)........AFTERNOON WEST WINDS 4-8 MPH. SMOKE DISPERSAL.....POOR (19800-20100 KNOT-FT) INCREASING TO FAIR BETWEEN 1300 AND 1500 IN THE AFTERNOON. MIXING HEIGHT.......1000-1100 FT AGL INCREASING TO 3300 FT AGL IN THE AFTERNOON. TRANSPORT WINDS.....WEST 13 MPH. $$ FORECASTER...MIKE CHAMBERLAIN REQUESTED BY...ROB MACDONALD TYPE OF REQUEST...PRESCRIBED .TAG 20100205.PINEY.01/GJT