FNUS74 KAMA 161139 FWSAMA SPOT FORECAST FOR HALLS CREEK BLACK LINE...JA RANCH NATIONAL WEATHER SERVICE AMARILLO TX 539 AM CST THU DEC 16 2010 FORECAST IS BASED ON IGNITION TIME OF 0800 CST ON DECEMBER 16. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... LIGHT NORTH TO NORTHEAST WINDS CAN BE EXPECTED AT THE BURN SITE TODAY AROUND 5 TO 15 MPH. COOL AND MOIST UPSLOPE EASTERLY WINDS ARE EXPECTED AT THE BURN SITE ON FRIDAY. NO PRECIPITATION IS EXPECTED AT THE BURN SITE TODAY. HOWEVER...AN APPROACHING UPPER-LEVEL TROUGH OF LOW PRESSURE FROM THE SOUTHWESTERN STATES AND SOUTHERN ROCKIES TONIGHT AND FRIDAY WILL RESULT IN INCREASING CHANCES FOR SNOW AT THE BURN SITE THIS EVENING THROUGH FRIDAY. TOTAL SNOWFALL ACCUMULATION AT THE BURN SITE ARE EXPECTED TO BE AROUND 1 TO 2 INCHES BY FRIDAY AFTERNOON. .TODAY... SKY/WEATHER.........PARTLY SUNNY (55-65 PERCENT). TEMPERATURE.........29 AT IGNITION...MAX 49. RH..................81 PERCENT AT IGNITION...MIN 37 PERCENT. WIND (20 FT)........WINDS NORTH AT 11 MPH AT IGNITION...OTHERWISE NORTHEAST WINDS 7 TO 12 MPH. CHANCE OF PCPN......0 PERCENT. LAL.................1. HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......2000 FT AGL AT IGNITION...OTHERWISE 1500-3000 FT AGL INCREASING TO 3500-4000 FT AGL IN THE AFTERNOON. MIXING WINDS........NORTH 14 TO 23 MPH SHIFTING TO THE NORTHEAST 10 TO 12 MPH IN THE AFTERNOON. TIME (CST) 8 AM 10 AM NOON 2 PM 4 PM SKY (%).........MCLDY MCLDY MCLDY MCLDY MCLDY WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE NONE TEMP............29 37 44 48 48 RH..............81 59 44 36 33 20 FT WIND......N 12 N 10 N 8 NE 8 NE 7 20 FT WIND GUST.15 15 10 10 10 CHC OF PCPN (%).0 0 0 0 0 HAINES INDEX....2 2 2 2 2 .TONIGHT... SKY/WEATHER.........MOSTLY CLOUDY (75-85 PERCENT). SLIGHT CHANCE OF SNOW IN THE EVENING...THEN SNOW LIKELY AFTER MIDNIGHT. TEMPERATURE.........MIN 28. RH..................MAX 81 PERCENT. WIND (20 FT)........EAST WINDS 7 TO 8 MPH. CHANCE OF PCPN......40 PERCENT. LAL.................1. HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......2500-3500 FT AGL DECREASING TO 0-1500 FT AGL EARLY IN THE EVENING. MIXING WINDS........EAST 6 TO 13 MPH. TIME (CST) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM SKY (%).........MCLDY MCLDY MCLDY MCLDY MCLDY CLOUDY WEATHER COV.....S CHC S CHC S CHC LIKELY LIKELY LIKELY WEATHER TYPE....SNOW SNOW SNOW SNOW SNOW SNOW TEMP............41 36 34 32 31 29 RH..............43 51 56 62 66 73 20 FT WIND......E 7 E 7 E 7 E 7 E 7 E 7 20 FT WIND GUST.10 10 10 10 10 10 CHC OF PCPN (%).20 20 20 60 60 60 HAINES INDEX....2 2 2 2 2 2 .FRIDAY... SKY/WEATHER.........CLOUDY (85-95 PERCENT). SNOW LIKELY IN THE MORNING...THEN CHANCE OF SNOW IN THE AFTERNOON. TEMPERATURE.........MAX 36. RH..................MIN 67 PERCENT. WIND (20 FT)........EAST WINDS 9 TO 12 MPH. CHANCE OF PCPN......60 PERCENT. LAL.................1. HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......1000-2500 FT AGL INCREASING TO 5500-6000 FT AGL. MIXING WINDS........SOUTHEAST 13 TO 20 MPH. TIME (CST) 6 AM 8 AM 10 AM NOON 2 PM 4 PM SKY (%).........CLOUDY CLOUDY CLOUDY CLOUDY CLOUDY MCLDY WEATHER COV.....LIKELY LIKELY LIKELY CHANCE CHANCE CHANCE WEATHER TYPE....SNOW SNOW SNOW SNOW SNOW SNOW TEMP............28 28 31 34 36 36 RH..............77 81 75 72 67 67 20 FT WIND......E 9 E 9 E 9 E 9 E 10 E 10 20 FT WIND GUST.10 10 10 10 15 15 CHC OF PCPN (%).60 60 60 50 50 50 HAINES INDEX....2 2 2 2 2 2 $$ FORECASTER...SCHNEIDER REQUESTED BY...ANDREW BIVINS TYPE OF REQUEST...PRESCRIBED .TAG 20101216.HALLS.01/AMA