FNUS72 KJAX 290715 FWSJAX SPOT FORECAST FOR IMPASSABLE BAY...USDA-FOREST SERVICE NATIONAL WEATHER SERVICE JACKSONVILLE FL 315 AM EDT WED JUN 29 2011 FORECAST IS BASED ON REQUEST TIME OF 0303 EDT ON JUNE 29. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...HIGH PRESSURE WILL CONTINUE SOUTH OF THE FORECAST AREA WHILE A COLD FRONT SLOWLY MOVES THROUGH THE AREA THURSDAY AND FRIDAY. SHOWER AND THUNDERSTORM ACTIVITY IS EXPECTED TO INCREASE FROM THE WEST MID-MORNING. THE HIGHEST CHANCES OF SHOWERS AND THUNDERSTORMS WILL BE BETWEEN NOON AND 8 PM. WINDS WILL BE VARIABLE IN DIRECTION AND MAGNITUDE NEAR STORMS. PERIODS OF HEAVY RAINFALL AND FREQUENT LIGHTNING WILL BE POSSIBLE. RELATIVE HUMIDITIES WILL REMAIN ABOVE CRITICAL VALUES. .TODAY... SKY/WEATHER.........PARTLY CLOUDY (60-70 PERCENT). SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS EARLY IN THE MORNING...THEN CHANCE OF SHOWERS AND THUNDERSTORMS EARLY IN THE MORNING. SHOWERS AND THUNDERSTORMS LIKELY EARLY IN THE AFTERNOON. MAX TEMPERATURE.....AROUND 94. MIN HUMIDITY........52 PERCENT. WIND (20 FT)........LIGHT WINDS BECOMING SOUTHWEST 5 TO 7 MPH. LAL.................2 UNTIL 0800...THEN 3 UNTIL 1400...THEN 4. MIXING HEIGHT.......700 FT AGL INCREASING TO 4400-5300 FT AGL. MIXING WINDS........WEST 8 TO 10 MPH. DISPERSION INDEX....38. CHANCE OF PCPN......40 PERCENT. TIME (EDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM SKY (%).........54 66 66 55 65 65 WEATHER COV.....S CHC CHANCE CHANCE CHANCE LIKELY LIKELY WEATHER TYPE....TSTORM TSTORM TSTORM TSTORM TSTORM TSTORM TEMP............70 73 84 91 94 92 RH..............100 97 71 57 51 53 20 FT WIND......SW 3 SW 5 SW 6 SW 6 SW 7 SW 7 20 FT WIND GUST.10 10 10 10 10 10 MIX HGT (FT)....700 3200 3200 4600 5300 5300 TRANSPORT WIND..SW 8 SW 10 SW 10 W 10 W 9 W 9 LVORI...........M M M M M M DISPERSION INDX.4 26 26 31 39 39 CHC OF PCPN (%).20 30 30 30 70 70 LAL.............2 3 3 3 4 4 .TONIGHT... SKY/WEATHER.........MOSTLY CLOUDY (75-85 PERCENT). SHOWERS AND THUNDERSTORMS LIKELY EARLY IN THE EVENING...THEN CHANCE OF SHOWERS AND THUNDERSTORMS EARLY IN THE EVENING. SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS AFTER MIDNIGHT. MIN TEMPERATURE.....AROUND 71. MAX HUMIDITY........100 PERCENT. WIND (20 FT)........SOUTHWEST WINDS 6 TO 7 MPH EARLY IN THE EVENING BECOMING LIGHT. LAL.................4 UNTIL 2000...THEN 3 UNTIL 0200...THEN 2. MIXING HEIGHT.......3200-4400 FT AGL DECREASING TO 200-500 FT AGL LATE IN THE EVENING. MIXING WINDS........SOUTHWEST 3 TO 8 MPH. DISPERSION INDEX....2. CHANCE OF PCPN......30 PERCENT. LVORI...............8. TIME (EDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM SKY (%).........71 81 81 86 73 73 WEATHER COV.....LIKELY CHANCE CHANCE CHANCE S CHC S CHC WEATHER TYPE....TSTORM TSTORM TSTORM TSTORM TSTORM TSTORM TEMP............88 83 78 76 74 72 RH..............61 74 86 91 94 98 20 FT WIND......SW 7 SW 6 S 2 S 0 S 0 SW 0 20 FT WIND GUST.10 5 5 5 5 MIX HGT (FT)....4400 3200 3200 500 200 200 TRANSPORT WIND..W 8 SW 7 SW 7 SW 5 SW 3 SW 3 LVORI...........8 8 8 8 8 8 DISPERSION INDX.31 5 3 2 2 2 CHC OF PCPN (%).70 30 30 30 20 20 LAL.............4 3 3 3 2 2 .THURSDAY... SKY/WEATHER.........MOSTLY CLOUDY (65-75 PERCENT). CHANCE OF SHOWERS AND THUNDERSTORMS EARLY IN THE MORNING. SHOWERS AND THUNDERSTORMS LIKELY EARLY IN THE AFTERNOON. MAX TEMPERATURE.....AROUND 93. MIN HUMIDITY........51 PERCENT. WIND (20 FT)........LIGHT WINDS BECOMING SOUTHEAST 5 TO 6 MPH LATE IN THE AFTERNOON. LAL.................1 UNTIL 0800...THEN 3 UNTIL 1400...THEN 4. MIXING HEIGHT.......500 FT AGL INCREASING TO 3200-4800 FT AGL EARLY IN THE MORNING. MIXING WINDS........SOUTHWEST 3 TO 6 MPH. DISPERSION INDEX....33. $$ FORECASTER...ENYEDI REQUESTED BY...PETER MYERS TYPE OF REQUEST...WILDFIRE .TAG 20110629.IMPAS.01/JAX