FNUS74 KSJT 101509 FWSSJT SPOT FORECAST FOR SOUTH LLANO RIVER SP UNIT 1...TPWD NATIONAL WEATHER SERVICE SAN ANGELO 909 AM CST MON DEC 10 2012 FORECAST IS BASED ON IGNITION TIME OF 1000 CST ON DECEMBER 10. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... ...MUCH COLDER AND DRIER CONDITIONS ARE IN PLACE TODAY ACROSS THE AREA. GUSTY NORTH TO NORTHWEST WINDS OF 10 TO 20 MPH WILL AFFECT THE BURN AREA TODAY...DECREASING TO LESS THAN 10 MPH BY MID TO LATE AFTERNOON. RELATIVE HUMIDITY VALUES WILL DROP TO AROUND 20 PERCENT DURING PEAK HEATING OF THE AFTERNOON HOURS. LIGHT AND VARIABLE WINDS OVERNIGHT WILL TURN TO THE SOUTH TUESDAY DURING THE MORNING HOURS. MIXING HEIGHTS WILL MAX OUT AT AROUND 3500 FEET THIS AFTERNOON BEFORE THE INVERSION SETS IN AROUND 6 PM WHICH WILL GREATLY REDUCE ANY ABILITY FOR SMOKE TO DISPERSION NEAR THE FIRE. WITH WARMER TEMPERATURES ON TUESDAY...RELATIVE HUMIDITY VALUES WILL DROP TO LESS THAN 20 PERCENT...BUT WINDS WILL BE MUCH LIGHTER... .TODAY... SKY/WEATHER.........MOSTLY SUNNY (25-35 PERCENT). MAX TEMPERATURE.....AROUND 48. MIN HUMIDITY........20 PERCENT. WIND (20 FT)........NORTHWEST WINDS 10 TO 17 MPH SHIFTING TO THE NORTH AROUND 6 MPH LATE IN THE AFTERNOON. MIXING HEIGHT.......700-2600 FT AGL INCREASING TO 2900-4000 FT AGL LATE IN THE MORNING...THEN DECREASING TO 2000 FT AGL LATE IN THE AFTERNOON. TRANSPORT WINDS.....NORTH 20 TO 30 MPH DECREASING TO 15 TO 20 MPH IN THE AFTERNOON. TIME (CST) 10 AM NOON 2 PM 4 PM SKY (%).........10 10 10 10 WEATHER TYPE....NONE NONE NONE NONE TEMP............40 45 47 48 RH..............33 26 23 21 20 FT WIND......N 16 N 14 NW 10 N 8 20 FT WIND GUST.20 20 15 10 .TONIGHT... SKY/WEATHER.........MOSTLY CLEAR (15-25 PERCENT). MIN TEMPERATURE.....AROUND 17. MAX HUMIDITY........75 PERCENT. WIND (20 FT)........NORTH WINDS AROUND 5 MPH EARLY IN THE EVENING BECOMING LIGHT. MIXING HEIGHT.......100-800 FT AGL. TRANSPORT WINDS.....SOUTHEAST 2 TO 10 MPH SHIFTING TO THE SOUTHWEST AROUND 1 MPH AFTER MIDNIGHT. TIME (CST) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM SKY (%).........7 8 8 9 10 10 WEATHER TYPE....NONE NONE NONE NONE NONE NONE TEMP............40 31 25 23 18 18 RH..............27 47 57 62 73 73 20 FT WIND......N 5 N 3 NW 1 W 1 W 1 NW 1 20 FT WIND GUST. 5 5 5 5 .TUESDAY... SKY/WEATHER.........SUNNY (10-20 PERCENT). MAX TEMPERATURE.....AROUND 54. MIN HUMIDITY........17 PERCENT. WIND (20 FT)........LIGHT WINDS. MIXING HEIGHT.......0-600 FT AGL INCREASING TO 4200-5200 FT AGL. TRANSPORT WINDS.....LIGHT AND VARIABLE. TIME (CST) 6 AM 8 AM 10 AM NOON 2 PM 4 PM SKY (%).........8 6 7 7 7 4 WEATHER TYPE....NONE NONE NONE NONE NONE NONE TEMP............17 20 32 46 53 54 RH..............73 67 41 25 20 19 20 FT WIND......NW 1 W 2 W 3 SW 3 W 3 NW 3 20 FT WIND GUST.5 5 5 10 10 5 $$ FORECASTER...NAGLE REQUESTED BY...JAYSON MAY TYPE OF REQUEST...PRESCRIBED .TAG 20121210.SOUTH.01/SJT