FNUS72 KMFL 081015 FWSMFL SPOT FORECAST FOR LIMESTONE CREEK 4 ...PALM BEACH COUNTY ENV. RESOURCES MGMT NATIONAL WEATHER SERVICE MIAMI FL 615 AM EDT WED JUL 8 2009 FORECAST IS BASED ON REQUEST TIME OF 1000 EDT ON JULY 08. IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...A SURFACE RIDGE STILL LIES TO THE SOUTH OF THE AREA NEAR THE MIDDLE KEYS. THE PRESSURE GRADIENT THOUGH IS SLIGHTLY WEAKENED AS A TROUGH OF LOW PRESSURE OVER NORTH FLORIDA/SOUTHEAST U.S. HAS WEAKENED AS WELL. REGARDLESS...THE PREVAILING WIND FLOW AT THE SURFACE AND ALOFT WILL BE SOUTHWEST. THOUGH THE HOURLY GRIDS INDICATE THAT 20 FOOT AND EYE LEVEL WINDS REMAIN SOUTHWEST...LATE MODEL GUIDANCE INDICATES THAT THESE WINDS MAY BECOME DUE SOUTH OR SLIGHTLY EAST OF SOUTH (160-170 DEGREES) AS A SEA BREEZE TRIES TO MOVE ONTO THE COAST. SEEING THE NEARNESS OF THE FIRE SITE TO THE COAST YOU MAY SEE THIS WIND SHIFT. OVERALL TRANSPORT WINDS WILL BE SOUTH -WEST. DISPERSION WILL BE GENERALLY GOOD AT 10 AM RISING TO VERY GOOD BY AFTER -N0ON THEN DROPPING DRASTICALLY BY LATE AFTERNOON AS AFTERNOON SHOWERS AND THUNDERSTORMS POP UP AND BRING IN A CLOUD CEILING. GRIDS SHOW SOME POSSIBLE SHOWERS/THUNDERSTORMS BY 10 AM BUT EXPECT THE ACTIVITY NOT UNTIL AFTER 2 PM. THE RIDGE WILL MOVE OVER SOUTH FLORIDA THURSDAY WITH DISPERSION BEING POOR TO FAIR AS TRANSPORT WINDS BECOME GENERALLY LESS THAN 10 MPH FROM THE SOUTHWEST...SHIFTING TO SOUTHEAST THROUGH THE DAY. .TODAY... SKY/WEATHER.........PARTLY SUNNY (50-60 PERCENT). SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN THE MORNING...THEN CHANCE OF SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. MAX TEMPERATURE.....AROUND 94. MIN HUMIDITY........54 PERCENT. DEWPOINT............76. WIND (20 FT)........SOUTHWEST WINDS 5 TO 6 MPH. EYE LEVEL WINDS.....SOUTHWEST WINDS 5 TO 6 MPH. CHANCE OF PCPN......40 PERCENT. LAL.................2 UNTIL 1400...THEN 3. MIXING HEIGHT.......2000-3500 FT AGL INCREASING TO 4500-5000 FT AGL IN THE AFTERNOON. MIXING WINDS........SOUTH 10 TO 13 MPH. DISPERSION INDEX....25 INCREASING TO 50 LATE IN THE MORNING...THEN INCREASING TO 71 EARLY IN THE AFTERNOON DECREASING TO 29 LATE IN THE AFTERNOON. LVORI...............2. TIME (EDT) 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM 7PM 8PM 9PM SKY (%).........40 40 40 40 65 65 65 65 65 65 40 40 WEATHER COV.....SCH SCH SCH SCH CHC CHC CHC CHC CHC CHC SCH SCH WEATHER TYPE....TSM TSM TSM TSM TSM TSM TSM TSM TSM TSM TSM TSM CHC OF PCPN (%).40 40 40 40 40 40 40 40 40 40 20 20 TEMP............85 88 91 94 92 90 90 89 86 84 82 81 RH..............73 66 60 54 57 60 60 61 67 72 75 80 20 FT WIND DIR..SW SW SW SW SW SW SW SW SW SW SW SW 20 FT WIND SPD..4 5 5 5 5 5 5 3 3 3 2 2 20 FT WIND GUST.5 10 10 10 10 10 10 5 5 5 5 5 EYE LVL WND DIR.SW SW SW SW SW SW SW SW SW SW SW SW EYE LVL WND SPD.4 5 5 5 5 5 5 3 3 3 2 2 EYE LVL WND GST.5 10 10 10 10 10 10 5 5 5 5 5 MIX HGT (KFT)...2.0 3.5 3.5 3.5 5.0 5.0 5.0 4.5 4.5 4.5 2.4 2.4 MIXNG WIND DIR..SW SW SW SW SW SW SW S S S S S MIXNG WIND SPD..10 12 12 12 13 13 13 10 10 10 8 8 DISP IDX (LDSI).25 50 50 50 71 71 71 29 29 29 16 16 LVORI...........3 1 1 1 1 1 1 3 3 3 3 3 LAL.............2 2 2 2 3 3 3 3 3 3 2 2 .TONIGHT... SKY/WEATHER.........PARTLY CLOUDY (35-45 PERCENT). SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS. MIN TEMPERATURE.....AROUND 77. MAX HUMIDITY........94 PERCENT. DEWPOINT............75. WIND (20 FT)........LIGHT WINDS BECOMING SOUTHWEST AROUND 5 MPH AFTER MIDNIGHT. EYE LEVEL WINDS.....LIGHT WINDS BECOMING SOUTHWEST AROUND 5 MPH AFTER MIDNIGHT. CHANCE OF PCPN......20 PERCENT. LAL.................2. MIXING HEIGHT.......2400 FT AGL DECREASING TO 300-500 FT AGL IN THE LATE EVENING AND OVERNIGHT. MIXING WINDS........SOUTHWEST 7 TO 8 MPH. DISPERSION INDEX....16 DECREASING TO 4 IN THE LATE EVENING AND OVERNIGHT. LVORI...............5. $$ FORECASTER...ROTHFUSS REQUESTED BY...KRAIG KRUM TYPE OF REQUEST...WILDFIRE