FNUS74 KHUN 262258 FWSHUN SPOT FORECAST FOR KRALS COMPLEX RX BURN PT 2...NPS NATR NATIONAL WEATHER SERVICE HUNTSVILLE AL 458 PM CST SUN FEB 26 2012 FORECAST IS BASED ON IGNITION TIME OF 1800 CST ON FEBRUARY 26. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. ...RED FLAG WARNING IN EFFECT UNTIL 6 PM CST THIS EVENING... .DISCUSSION... SOUTHERLY WINDS WILL PREVAIL ACROSS THE BURN SITE THIS EVENING... DECREASING AND CHANGING TO EAST EARLY MONDAY TO NORTHEAST BY MONDAY AFTERNOON. DISPERSION WILL BE POOR TO FAIR THROUGH MONDAY NIGHT DUE TO A SURFACE HIGH PRESSURE SYSTEM CENTERED OVER THE CAROLINAS DOMINATING THE REGION. RELATIVE HUMIDITIES ARE EXPECTED TO BE HIGHER ON MONDAY AFTERNOON DUE TO THE RICH MOISTURE MOVING NORTHWARD FROM THE GULF OF MEXICO. MINIMUM VALUES ARE EXPECTED TO BE 51 TO 53 PERCENT. MIXING HEIGHTS ARE EXPECTED TO RISE FROM APPROX 600 FEET IN THE MORNING TO NEAR 4000 FEET BY 2-4 PM. FOG FORMATION IS NOT EXPECTED FOR TONIGHT DUE TO THE DRY CONDITIONS ACROSS THE REGION AND NEAR THE BURN SITE (I.E. RELATIVE HUMIDITIES ARE WELL BELOW 100 PERCENT). A COLD FRONT IS EXPECTED TO APPROACH THE AREA ON TUESDAY BRINGING A CHANCE FOR SHOWERS AND THUNDERSTORMS BY TUESDAY AFTERNOON OVER THE BURN SITE. THE THUNDERSTORM ACTIVITY IS EXPECTED TO END ON WEDNESDAY EVENING AS THE COLD FRONT PASSES OVER THE AREA. .TONIGHT... SKY/WEATHER.........MOSTLY CLEAR (15-25 PERCENT). MIN TEMPERATURE.....40 TO 42. MAX HUMIDITY........74 TO 76 PERCENT. WIND (20 FT)........LIGHT WINDS. CWR.................0 PERCENT. LAL.................1. MIXING HEIGHT.......1800 FT AGL...THEN DECREASING TO 300 FT AGL BY 10 PM. TRANSPORT WINDS.....EAST 5 TO 10 MPH. TIME (CST) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM SKY (%).........MCLEAR MCLEAR MCLEAR PCLDY PCLDY PCLDY WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE NONE NONE TEMP............54 50 47 45 44 42 RH..............28 40 49 55 60 66 20 FT WIND......SE 3 SE 2 SE 2 E 1 E 0 NE 0 MIX HGT (FT)....1800 1800 300 300 300 400 TRANSPORT WIND..SE 10 SE 10 SE 7 E 6 E 6 E 5 DISPERSION IDX..24 24 3 3 3 2 CHC OF PCPN (%).0 0 0 0 0 0 LAL.............1 1 1 1 1 1 .MONDAY... SKY/WEATHER.........MOSTLY SUNNY (45-55 PERCENT). MAX TEMPERATURE.....58 TO 60. MIN HUMIDITY........51 TO 53 PERCENT. WIND (20 FT)........LIGHT WINDS. CWR.................10 PERCENT. LAL.................1. MIXING HEIGHT.......600-900 FT AGL INCREASING TO NEAR 3900 FT AGL IN THE AFTERNOON. TRANSPORT WINDS.....EAST 3 TO 6 MPH. TIME (CST) 6 AM 8 AM 10 AM NOON 2 PM 4 PM SKY (%).........PCLDY PCLDY PCLDY PCLDY PCLDY PCLDY WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE NONE NONE TEMP............41 45 51 56 59 59 RH..............73 73 67 59 54 54 20 FT WIND......NE 0 E 1 E 1 SE 2 NE 3 N 3 MIX HGT (FT)....600 600 900 2600 2600 3900 TRANSPORT WIND..E 6 E 6 E 5 E 3 E 3 E 3 DISPERSION IDX..3 3 2 11 11 16 CHC OF PCPN (%).10 10 10 10 10 10 LAL.............1 1 1 1 1 1 $$ FORECASTER...LATIMER REQUESTED BY...JENNIFER FALKEY TYPE OF REQUEST...PRESCRIBED .TAG 20120226.KRALS.02/HUN