FNUS75 KFGZ 171649 FWSFGZ SPOT FORECAST FOR TUSAYAN MISC PILES...KAIBAB NF NATIONAL WEATHER SERVICE FLAGSTAFF AZ 949 AM MST MON DEC 17 2012 FORECAST IS BASED ON IGNITION TIME OF 1230 MST ON DECEMBER 17. IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...AMPLE MOISTURE WILL BRING LOW HANGING STRATUS AND PATCHY FOG TODAY THROUGH MIDDAY TUESDAY. DURING THIS PERIOD EXPECT GENERALLY POOR TO MARGINAL VENTILATION REACHING FAIR LEVELS FOR A BRIEF PERIOD THIS AFTERNOON. FOR TUESDAY AFTERNOON...A NEW STORM WILL APPROACH WITH INCREASING WINDS AND THE CHANCE OF SNOW. INCREASING WINDS AND A DEEPENING MIXED LAYER WILL RESULT IN EXCELLENT VENTILATION ON TUESDAY. .TODAY... SKY/WEATHER.........MOSTLY CLOUDY. PATCHY FOG IN THE MORNING. MAX TEMPERATURE.....AROUND 38. MIN HUMIDITY........75-85 PCT. WINDS (20 FT).......SOUTHWEST WIND 5 TO 10 MPH...WITH GUSTS UP TO 15 MPH. MAX VENT RATE.......FAIR (37800 KNOT-FT). .TONIGHT... SKY/WEATHER.........MOSTLY CLOUDY. PATCHY FOG. MIN TEMPERATURE.....AROUND 24. MAX HUMIDITY........100 PCT. WINDS (20 FT).......SOUTHWEST WINDS 5 TO 15 MPH EARLY...DECREASING TO SOUTHWEST AT 5 MPH. MIN VENT RATE.......MARGINAL (9600 KNOT-FT). .TUESDAY... SKY/WEATHER.........MOSTLY CLOUDY. SNOW SHOWERS LIKELY...MAINLY IN THE AFTERNOON. MAX TEMPERATURE.....AROUND 34 MIN HUMIDITY........70-80 PCT. WINDS (20 FT).......SOUTHWEST WINDS 10 TO 15 MPH. GUSTS UP TO 25 MPH. MAX VENT RATE.......EXCELLENT (107700 KNOT-FT). $$ FORECASTER...MCCOLLUM REQUESTED BY...QUENTIN JOHNSON REASON FOR REQUEST...PRESCRIBED .TAG 20121217.TUSAY.01/FGZ