FNUS72 KJAX 101126 FWSJAX SPOT FORECAST FOR IMPASSABLE BAY...USDA- FOREST SERVICE NATIONAL WEATHER SERVICE JACKSONVILLE FL 726 AM EDT FRI JUN 10 2011 FORECAST IS BASED ON REQUEST TIME OF 0800 EDT ON JUNE 10. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. ...RED FLAG WARNING IN EFFECT FROM 2 PM THIS AFTERNOON TO 6 PM EDT THIS EVENING... .DISCUSSION...A HIGH PRESSURE RIDGE NORTHEAST OF THE AREA WILL WEAKEN TODAY AS LOW PRESSURE MOVES WELL EAST OF THE REGION. ONLY ISOLATED SHOWERS AND THUNDERSTORMS ARE EXPECTED DURING THE AFTERNOON HOURS THROUGH SATURDAY. A PERIOD OF RH AT OR BELOW 35 IS EXPECTED THIS AFTERNOON ALONG WITH ERC VALUES EXPECTED TO BE ABOVE 35. THEREFORE...A RED FLAG WARNING HAS BEEN ISSUED. A PERIOD OF RED FLAG CONDITIONS WILL BE POSSIBLE AGAIN FRIDAY. WINDS ARE EXPECTED TO REMAIN GENERALLY OUT OF A SOUTHEASTERLY DIRECTION TODAY WITH A MORE DRAMATIC INCREASE FROM THE EAST WITH THE SEA BREEZE PASSAGE DURING THE MID AFTERNOON HOURS. RELATIVE HUMIDITY VALUES WILL SLOWLY FALL THROUGH THE MORNING HOURS WITH A MORE DRAMATIC FALL DURING THE EARLY AFTERNOON HOURS AS MIXING OF THE DRY AIR ALOFT TAKES PLACE. AN ISOLATED THUNDERSTORM IS POSSIBLE ALONG THE ATLANTIC COAST SEA BREEZE AS IT PUSHES ACROSS THE WILDFIRE LOCATION DURING THE MID TO LATE AFTERNOON HOURS. .TODAY... SKY/WEATHER.........MOSTLY SUNNY (30-40 PERCENT). PATCHY FOG EARLY IN THE MORNING. AREAS OF SMOKE. SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. MAX TEMPERATURE.....AROUND 94. MIN HUMIDITY........32 PERCENT. WIND (20 FT)........LIGHT WINDS BECOMING EAST 10 MPH IN THE AFTERNOON. LAL.................1 UNTIL 1400...THEN 2. MIXING HEIGHT.......400-1700 FT AGL INCREASING TO 5500-7200 FT AGL. MIXING WINDS........SOUTH 5 MPH SHIFTING TO THE EAST 10 TO 15 MPH IN THE AFTERNOON. DISPERSION INDEX....71. TIME (EDT) 8 AM 10 AM NOON 2 PM 4 PM SKY (%).........28 28 35 36 36 WEATHER COV.....AREAS AREAS AREAS S CHC S CHC WEATHER TYPE....SMOKE SMOKE SMOKE TSTORM TSTORM TEMP............70 82 90 94 93 RH..............93 56 41 34 37 20 FT WIND......SE 0 SE 2 E 5 E 7 E 9 20 FT WIND GUST. 5 10 10 15 MIX HGT (FT)....1700 1700 4500 7200 7200 TRANSPORT WIND..S 5 S 5 SE 7 NE 9 NE 9 LAL.............1 1 1 2 2 .TONIGHT... SKY/WEATHER.........PARTLY CLOUDY (30-40 PERCENT). SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS EARLY IN THE EVENING. MIN TEMPERATURE.....AROUND 65. MAX HUMIDITY........100 PERCENT. WIND (20 FT)........SOUTHEAST WINDS 10 MPH IN THE EVENING BECOMING LIGHT. LAL.................2 UNTIL 2000...THEN 1. MIXING HEIGHT.......3700-5500 FT AGL DECREASING TO 200 FT AGL OVERNIGHT. MIXING WINDS........SOUTHEAST 10 TO 15 MPH. DISPERSION INDEX....4. TIME (EDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM SKY (%).........37 37 37 34 32 32 WEATHER COV.....S CHC WEATHER TYPE....TSTORM NONE NONE NONE NONE NONE TEMP............88 81 75 71 69 66 RH..............46 62 75 82 88 98 20 FT WIND......E 12 E 12 SE 9 SE 5 SE 1 E 0 20 FT WIND GUST.15 15 15 10 5 5 MIX HGT (FT)....5500 3700 3700 2000 200 200 TRANSPORT WIND..E 12 SE 14 SE 14 SE 13 SE 9 SE 9 LAL.............2 1 1 1 1 1 .SATURDAY... SKY/WEATHER.........MOSTLY SUNNY (35-45 PERCENT). MAX TEMPERATURE.....AROUND 93. MIN HUMIDITY........35 PERCENT. WIND (20 FT)........LIGHT WINDS BECOMING EAST 5 TO 10 MPH IN THE AFTERNOON. LAL.................1. MIXING HEIGHT.......1000-1700 FT AGL INCREASING TO 5200-6600 FT AGL. MIXING WINDS........SOUTHEAST 5 MPH SHIFTING TO THE EAST 10 MPH IN THE AFTERNOON. DISPERSION INDEX....39. $$ FORECASTER...HESS REQUESTED BY...PETER MYERS TYPE OF REQUEST...WILDFIRE .TAG 20110610.IMPAS.01/JAX