FNUS75 KGJT 032303 FWSGJT SPOT FORECAST FOR SANDSTONE PILES...USFS, WRNF NATIONAL WEATHER SERVICE GRAND JUNCTION CO 403 PM MST WED MAR 3 2010 FORECAST IS BASED ON IGNITION TIME OF 1100 MST ON MARCH 04. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. ...WINTER WEATHER ADVISORY FOR SNOW FROM MIDNIGHT MST THURSDAY NIGHT UNTIL 6 PM MST FRIDAY... .DISCUSSION...SCATTERED SNOW SHOWERS WILL DEVELOP THURSDAY AFTERNOON AS A LOW PRESSURE TROUGH APPROACHES FROM THE WEST. SNOW WILL INCREASE DURING THE EVENING WITH PERIODS OF HEAVY SNOW EXPECTED OVERNIGHT. SNOW WILL CONTINUE THROUGH FRIDAY WITH 3 TO 6 INCHES OF NEW SNOW AT THE BURN SITE BY THE EVENING. THE UNSTABLE AIR MASS WILL ALSO ALLOW GOOD TO EXCELLENT SMOKE DISPERSAL. .THURSDAY... SKY/WEATHER.........PARTLY CLOUDY (50-60%) THEN BECOMING MOSTLY CLOUDY (60-70%). SCATTERED SHOWERS IN THE AFTERNOON. WIND (20 FT)........SOUTHEAST WINDS 5 MPH. SMOKE DISPERSAL.....INCREASING TO GOOD IN THE AFTERNOON. MIXING HEIGHT.......1000-2700 FT AGL INCREASING TO 4500 FT AGL IN THE AFTERNOON. TRANSPORT WINDS.....SOUTHWEST 12 MPH. .THURSDAY NIGHT... SKY/WEATHER.........CLOUDY (90-100%). SCATTERED SHOWERS IN THE EVENING...THEN SHOWERS AFTER MIDNIGHT. WIND (20 FT)........SOUTHEAST WINDS 14 MPH. SMOKE DISPERSAL.....GENERALLY POOR WITH BETTER MIXING NEAR SHOWERS. THEN IMPROVING TO GOOD AS SNOW BECOMES WIDESPREAD. MIXING HEIGHT.......DECREASING TO 1000 FT AGL AWAY FROM SHOWERS. TRANSPORT WINDS.....SOUTH 10 MPH INCREASING TO 18 MPH AFTER MIDNIGHT. .FRIDAY... SKY/WEATHER.........CLOUDY (90-100%). PERIODS OF SNOW. WIND (20 FT)........SOUTHWEST WINDS 16 MPH. SMOKE DISPERSAL.....FAIR IN THE MORNING...THEN INCREASING TO EXCELLENT . MIXING HEIGHT.......1000 FT AGL INCREASING TO 12900 FT AGL. TRANSPORT WINDS.....SOUTHWEST 25 MPH. $$ FORECASTER...ELLEN HEFFERNAN REQUESTED BY...TODD KING TYPE OF REQUEST...PRESCRIBED .TAG 20100304.SANDS.01/GJT