FNUS74 KHUN 181246 FWSHUN SPOT FORECAST FOR BULAH...USFS NATIONAL WEATHER SERVICE HUNTSVILLE AL 746 AM CDT MON APR 18 2011 FORECAST IS BASED ON IGNITION TIME OF 0930 CDT ON APRIL 18. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... WARM AND INCREASINGLY HUMID WEATHER CONDITIONS CAN BE EXPECTED IN THE VICINITY OF THE PRESCRIBED BURN SITE TODAY AND TOMORROW...AS SOUTHERLY WINDS INCREASE IN RESPONSE TO LOW PRESSURE DEVELOPING OVER THE SOUTHERN PLAINS. TRANSPORT LAYER WINDS WILL BE FROM THE SOUTH AT 15-20 MPH TODAY...AND ARE EXPECTED TO SHIFT TO THE SOUTHWEST AND INCREASE TO 30-35 MPH BY TUESDAY. THIS WILL LEAD TO GOOD SMOKE DISPERSION BOTH DAYS...WITH THE PLUME EXPECTED TO TRAVEL GENERALLY TO THE NORTH-NORTHEAST. TEMPERATURES THIS AFTERNOON WILL WARM INTO THE UPPER 70S...WITH RELATIVE HUMIDITY VALUES FALLING INTO THE 40-45 PERCENT RANGE. AS GULF MOISTURE RAPIDLY RETURNS TO THE REGION OVERNIGHT...A CEILING AROUND 3500-4500 FEET WILL LIKELY DEVELOP... WITH A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS EXPECTED OVERNIGHT. .TODAY... SKY/WEATHER.........MOSTLY SUNNY (25-35 PERCENT). MAX TEMPERATURE.....AROUND 78. MIN HUMIDITY........43 PERCENT. WIND (20 FT)........LIGHT WINDS BECOMING SOUTH 5 TO 10 MPH. MIXING HEIGHT.......200 FT AGL INCREASING TO 4300-4500 FT AGL. TRANSPORT WINDS.....SOUTH 7 TO 8 MPH INCREASING TO 15 TO 18 MPH IN THE LATE MORNING AND AFTERNOON. TIME (CDT) 9 AM 11 AM 1 PM 3 PM 5 PM SKY (%).........MCLEAR MCLEAR PCLDY PCLDY PCLDY WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE NONE TEMP............59 68 74 77 77 RH..............62 50 45 43 46 20 FT WIND......S 8 S 9 S 10 S 10 S 9 MIX HGT (FT)....200 2200 4300 4300 4500 TRANSPORT WIND..S 8 S 18 SW 15 SW 15 S 16 DISPERSION IDX..5 49 58 58 63 .TONIGHT... SKY/WEATHER.........PARTLY CLOUDY (30-40 PERCENT) THEN BECOMING MOSTLY CLOUDY (60-70 PERCENT). SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS AFTER MIDNIGHT. MIN TEMPERATURE.....AROUND 62. MAX HUMIDITY........90 PERCENT. WIND (20 FT)........SOUTH WINDS AROUND 9 MPH. CWR.................10 PERCENT INCREASING TO 20 PERCENT AFTER MIDNIGHT. MIXING HEIGHT.......4500 FT AGL DECREASING TO 600-2300 FT AGL. TRANSPORT WINDS.....SOUTH 16 TO 22 MPH. TIME (CDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM SKY (%).........PCLDY MCLDY MCLDY MCLDY MCLDY MCLDY WEATHER COV..... S CHC S CHC WEATHER TYPE....NONE NONE NONE NONE RNSHWR RNSHWR TEMP............76 72 69 67 65 63 RH..............48 58 67 74 80 85 20 FT WIND......S 9 S 9 S 9 S 9 S 9 S 9 MIX HGT (FT)....4500 2300 600 600 1100 700 TRANSPORT WIND..S 16 S 21 S 20 S 20 S 22 S 21 DISPERSION IDX..63 43 18 18 20 19 CHC OF PCPN (%).0 10 10 10 20 20 .TUESDAY... SKY/WEATHER.........PARTLY SUNNY (50-60 PERCENT). MAX TEMPERATURE.....AROUND 81. MIN HUMIDITY........61 PERCENT. WIND (20 FT)........SOUTH WINDS 9 TO 15 MPH. CWR.................20 PERCENT DECREASING TO 10 PERCENT. MIXING HEIGHT.......700-1400 FT AGL INCREASING TO 3400-4700 FT AGL IN THE AFTERNOON. TRANSPORT WINDS.....SOUTH 21 TO 28 MPH INCREASING TO SOUTHWEST AROUND 35 MPH LATE IN THE AFTERNOON. TIME (CDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM SKY (%).........MCLDY MCLDY MCLDY MCLDY PCLDY PCLDY WEATHER COV.....S CHC WEATHER TYPE....RNSHWR NONE NONE NONE NONE NONE TEMP............63 66 73 77 80 81 RH..............89 83 72 67 63 61 20 FT WIND......S 9 S 10 S 13 S 15 S 15 S 15 MIX HGT (FT)....700 800 1400 1400 3400 4700 TRANSPORT WIND..S 21 S 21 S 25 S 25 S 28 SW 35 DISPERSION IDX..19 19 28 40 71 103 CHC OF PCPN (%).20 10 10 10 10 10 $$ FORECASTER...DIXON REQUESTED BY...CLARK TYPE OF REQUEST...PRESCRIBED .TAG 20110418.BULAH.01/HUN