FNUS75 KGJT 121456 FWSGJT SPOT FORECAST FOR POWDERHORN...BLM NATIONAL WEATHER SERVICE GRAND JUNCTION CO 856 AM MDT TUE APR 12 2011 FORECAST IS BASED ON IGNITION TIME OF 0835 MDT ON APRIL 12. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...A WEAK WAVE WILL PASS THOUGH NORTHWEST COLORADO THIS AFTERNOON. EFFECTS FROM THIS WAVE AT THE BURN SITE INCLUDE HIGH CLOUD CEILINGS AND INCREASED SOUTHWEST GRADIENT WINDS COMPARED TO MONDAY. MIXING HEIGHTS WILL QUICKLY COLLAPSE WITH SUNSET. A STRONGER PACIFIC SYSTEM WILL PASS WEDNESDAY NIGHT-THURSDAY PRODUCING A GOOD CHANCE OF SHOWERS AND GUSTY WINDS. .TODAY... SKY/WEATHER.........MOSTLY CLOUDY. MAX TEMPERATURE.....48-52 F. MIN HUMIDITY........21-25%. 20-FOOT WINDS.......SOUTH 3-6 MPH UNTIL 1000. THEN SOUTHWEST WINDS INCREASING TO 8 TO 12 MPH WITH GUSTS TO 30 MPH. SMOKE DISPERSAL.....POOR UNTIL 1000 INCREASING TO EXCELLENT BY NOON. MIXING HEIGHT.......LESS THAN 2000 FT AGL UNTIL 1000...INCREASING TO 7000 FT AGL IN THE AFTERNOON. TRANSPORT WINDS.....SOUTHWEST 16 MPH...INCREASING TO 29 MPH THIS AFTERNOON. .TONIGHT AFTER SUNSET... SKY/WEATHER.........PARTLY CLOUDY. MIN TEMPERATURE.....20-25 F. MAX HUMIDITY........60-65%. 20-FOOT WINDS.......SOUTH WINDS 2-5 MPH. $$ FORECASTER...JOE RAMEY REQUESTED BY...BRIAN STEVENS TYPE OF REQUEST...PRESCRIBED .TAG 20110412.POWDE.01/GJT