FNUS75 KGJT 151839 FWSGJT SPOT FORECAST FOR EAST SIDE PILES...NPS NATIONAL WEATHER SERVICE GRAND JUNCTION CO 1139 AM MST THU DEC 15 2011 FORECAST IS BASED ON IGNITION TIME OF 1200 MST ON DECEMBER 16. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...A STABLE AIR MASS WILL REMAIN OVER THE REGION AS WESTERN COLORADO SITS BETWEEN A CUT OFF LOW PRESSURE SYSTEM OVER THE NORTHERN BAJA PENINSULA...AND A WEAK TROUGH PASSING OVER THE NORTHERN ROCKIES. THE FLOW WILL BE LIGHT DUE TO A WEAK PRESSURE GRADIENT. .FRIDAY... 20-FOOT WINDS.......EAST WINDS 0-5 MPH. SMOKE DISPERSAL.....POOR (MAX 12500 KNOT-FT). MIXING HEIGHT.......1000 FT AGL INCREASING TO 2000 FT AGL IN THE AFTERNOON. TRANSPORT WINDS.....NORTHEAST 7 MPH. $$ FORECASTER...ELLEN HEFFERNAN REQUESTED BY...ROSS OXFORD TYPE OF REQUEST...PRESCRIBED .TAG 20111216.EASTS.01/GJT