FNUS72 KJAX 211459 FWSJAX SPOT FORECAST FOR C-19 DELANCEY...US FOREST SERVICE NATIONAL WEATHER SERVICE JACKSONVILLE FL 1059 AM EDT THU JUN 21 2012 FORECAST IS BASED ON IGNITION TIME OF 1200 EDT ON JUNE 21. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... HIGH PRESSURE RIDGE NORTH OF THE AREA WILL MOVE EAST OF THE REGION BY FRIDAY. A PERSISTENT ONSHORE FLOW WILL INCREASE AS LOW PRESSURE DEVELOPS OVER THE GULF OF MEXICO AND MOVES EASTWARD THROUGH THE WEEKEND AND EARLY NEXT WEEK. THIS SHOULD KEEP MINIMUM RELATIVE HUMIDITY VALUES ABOVE CRITICAL LEVELS. REST OF TODAY...MOSTLY CLOUDY SKIES WILL CONTINUE. THERE WILL BE A FEW SHOWERS IN THE VICINITY OF THE BURN SITE THROUGH ABOUT NOON TIME...THEN SCATTERED SHOWER ACTIVITY WILL DEVELOP DURING THE AFTERNOON. AN ISOLATED THUNDERSTORM IS POSSIBLE DURING THE AFTERNOON HOURS. .REST OF TODAY... SKY/WEATHER.........MOSTLY CLOUDY (75-85 PERCENT). A FEW SHOWERS... BECOMING SCATTERED SHOWERS REST OF TODAY. ISOLATED THUNDERSTORMS IN THE AFTERNOON. MAX TEMPERATURE.....AROUND 87. MIN HUMIDITY........61 PERCENT. WIND (20 FT)........EAST WINDS 7 TO 9 MPH. LAL.................1 UNTIL 1200...THEN 2. MIXING HEIGHT.......1600-2800 FT AGL. MIXING WINDS........EAST AROUND 14 MPH. DISPERSION INDEX....15 INCREASING TO 41 IN THE AFTERNOON. CHANCE OF PCPN......40 PERCENT. LVORI...............3. TIME (EDT) NOON 2 PM 4 PM SKY (%).........80 80 78 WEATHER COV.....SCTTRD SCTTRD SCTTRD WEATHER TYPE....RNSHWR RNSHWR RNSHWR TEMP............85 87 86 RH..............62 61 62 20 FT WIND......E 8 E 9 E 9 20 FT WIND GUST.14 15 15 MIX HGT (FT)....2400 2800 2700 TRANSPORT WIND..E 14 E 14 E 14 LVORI...........2 1 1 DISPERSION INDX.42 39 43 CHC OF PCPN (%).30 50 40 LAL.............2 2 2 .TONIGHT... SKY/WEATHER.........MOSTLY CLOUDY (60-70 PERCENT) THEN BECOMING PARTLY CLOUDY (40-50 PERCENT). ISOLATED THUNDERSTORMS EARLY IN THE EVENING. SCATTERED SHOWERS IN THE EVENING...THEN SLIGHT CHANCE OF SHOWERS LATE IN THE EVENING. MIN TEMPERATURE.....AROUND 72. MAX HUMIDITY........100 PERCENT. WIND (20 FT)........EAST WINDS 5 TO 9 MPH IN THE EVENING BECOMING LIGHT. LAL.................2 UNTIL 2200...THEN 1. MIXING HEIGHT.......400-2300 FT AGL DECREASING TO 300 FT AGL EARLY IN THE MORNING. MIXING WINDS........EAST 5 TO 14 MPH. DISPERSION INDEX....38 DECREASING TO 4. CHANCE OF PCPN......30 PERCENT. LVORI...............5. TIME (EDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM SKY (%).........79 77 57 51 46 48 WEATHER COV.....SCTTRD CHANCE CHANCE S CHC S CHC S CHC WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR TEMP............83 79 76 75 74 72 RH..............66 72 81 86 92 95 20 FT WIND......E 9 E 9 E 7 E 5 E 3 E 2 20 FT WIND GUST.15 15 10 10 5 5 MIX HGT (FT)....2300 1900 1300 900 600 400 TRANSPORT WIND..E 14 E 14 E 10 E 7 E 5 E 5 LVORI...........2 3 3 5 6 7 DISPERSION INDX.40 35 19 6 3 3 CHC OF PCPN (%).40 30 30 20 20 20 LAL.............2 2 1 1 1 1 .FRIDAY... SKY/WEATHER.........MOSTLY SUNNY (45-55 PERCENT) THEN BECOMING CLOUDY (85-95 PERCENT). CHANCE OF SHOWERS AND THUNDERSTORMS IN THE LATE MORNING AND AFTERNOON. MAX TEMPERATURE.....AROUND 90. MIN HUMIDITY........55 PERCENT. WIND (20 FT)........LIGHT WINDS BECOMING EAST 6 TO 12 MPH IN THE LATE MORNING AND AFTERNOON. LAL.................1 UNTIL 0900...THEN 3. MIXING HEIGHT.......200-1800 FT AGL INCREASING TO 2400-3500 FT AGL LATE IN THE MORNING. MIXING WINDS........EAST 6 TO 14 MPH. DISPERSION INDEX....9 INCREASING TO 35. CHANCE OF PCPN......30 PERCENT. LVORI...............5. $$ FORECASTER...SHASHY REQUESTED BY...MIKE STRANGE TYPE OF REQUEST...PRESCRIBED .TAG 20120621.C19DE.02/JAX