FNUS72 KJAX 171217
FWSJAX

SPOT FORECAST FOR CEDAR POINT RX...NATIONAL PARK SERVICE
NATIONAL WEATHER SERVICE JACKSONVILLE FL
817 AM EDT FRI JUL 17 2009

FORECAST IS BASED ON IGNITION TIME OF 1000 EDT ON JULY 17.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...SOUTHWEST FLOW WILL INCREASE OVER THE AREA IN ADVANCE
OF A COLD FRONT THROUGH SATURDAY. THIS FRONT WILL PUSH INTO THE AREA
AND DISSIPATE ON SUNDAY. WINDS WILL BE NEAR 15 MPH WITH GUSTS AROUND
20 MPH TODAY AND SATURDAY. THESE SPEED SHOULD BE SUFFICIENT TO
PREVENT SEABREEZE FORMATION. SCATTERED SHOWERS AND STORMS ARE EXPECTED
EACH DAY. AFTERNOON HUMIDITIES WILL REMAIN WELL ABOVE CRITICAL VALUES.

.TODAY...

SKY/WEATHER.........MOSTLY SUNNY (45-55 PERCENT). A SLIGHT CHANCE OF
                    SHOWERS EARLY IN THE MORNING. A CHANCE OF SHOWERS
                    AND THUNDERSTORMS EARLY IN THE AFTERNOON.
MAX TEMPERATURE.....93.
MIN HUMIDITY........49 PERCENT.
WIND (20 FT)........WEST WINDS 7 TO 13 MPH.
LAL.................1 UNTIL 1400...THEN 3.
MIXING HEIGHT.......1200-1900 FT AGL INCREASING TO 3200-4800 FT AGL
                    LATE IN THE MORNING.
MIXING WINDS........WEST 14 TO 21 MPH.
DISPERSION INDEX....60.

TIME (EDT)      10 AM  NOON   2 PM   4 PM
SKY (%).........39     59     69     69
WEATHER COV.....S CHC  S CHC  CHANCE CHANCE
WEATHER TYPE....RNSHWR RNSHWR TSTORM TSTORM
TEMP............85     90     92     91
RH..............67     56     51     54
20 FT WIND......W 9    W 12   W 13   W 13
20 FT WIND GUST.15     15     20     20
MIX HGT (FT)....1900   3400   4800   4800
TRANSPORT WIND..SW 16  SW 18  W 21   W 21
LAL.............1      1      3      3

.TONIGHT...

SKY/WEATHER.........MOSTLY CLOUDY (55-65 PERCENT). A CHANCE OF SHOWERS AND
                    THUNDERSTORMS IN THE EVENING...THEN A SLIGHT CHANCE OF
                    SHOWERS AND THUNDERSTORMS .
MIN TEMPERATURE.....75.
MAX HUMIDITY........91 PERCENT.
WIND (20 FT)........WEST WINDS 7 TO 12 MPH.
LAL.................3 UNTIL 2000...THEN 2 UNTIL 0200...THEN 1.
MIXING HEIGHT.......1700-3200 FT AGL DECREASING TO 500-1100 FT AGL
                    LATE IN THE EVENING.
MIXING WINDS........WEST 14 TO 20 MPH BECOMING SOUTHWEST 10 TO 13 MPH AFTER
                    MIDNIGHT.
DISPERSION INDEX....10.

TIME (EDT)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
SKY (%).........69     69     69     52     49     49
WEATHER COV.....CHANCE S CHC  S CHC  S CHC  S CHC  S CHC
WEATHER TYPE....TSTORM TSTORM TSTORM TSTORM RNSHWR RNSHWR
TEMP............88     84     81     79     77     76
RH..............59     67     74     78     81     85
20 FT WIND......W 12   W 9    W 9    W 8    W 8    W 7
20 FT WIND GUST.15     15     15     15     15     15
MIX HGT (FT)....3200   1700   1700   1100   500    500
TRANSPORT WIND..W 20   W 17   W 17   W 14   SW 10  SW 10
LAL.............3      2      2      2      1      1

.SATURDAY...

SKY/WEATHER.........PARTLY SUNNY (60-70 PERCENT). A CHANCE OF SHOWERS
                    AND THUNDERSTORMS.
MAX TEMPERATURE.....88.
MIN HUMIDITY........58 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 7 TO 13 MPH.
LAL.................1 UNTIL 0800...THEN 3.
MIXING HEIGHT.......1100-2700 FT AGL INCREASING TO 2700-3500 FT AGL
                    EARLY IN THE AFTERNOON.
MIXING WINDS........SOUTHWEST 13 TO 18 MPH.
DISPERSION INDEX....46.

TIME (EDT)      6 AM   8 AM   10 AM  NOON   2 PM   4 PM
SKY (%).........57     65     65     73     76     76
WEATHER COV.....S CHC  CHANCE CHANCE CHANCE CHANCE CHANCE
WEATHER TYPE....RNSHWR TSTORM TSTORM TSTORM TSTORM TSTORM
TEMP............76     77     82     86     88     87
RH..............88     86     71     63     60     61
20 FT WIND......W 7    W 8    W 9    SW 12  SW 13  SW 13
20 FT WIND GUST.15     15     15     20     20     20
MIX HGT (FT)....1100   1800   1800   2700   3500   3500
TRANSPORT WIND..SW 13  SW 17  SW 17  W 18   W 18   W 18
LAL.............1      3      3      3      3      3

$$
FORECASTER...CARROLL
REQUESTED BY...DAVE LOVELAND
TYPE OF REQUEST...PRESCRIBED
.TAG 20090717.CEDAR.01/JAX