FXUS62 KJAX 270254
AFDJAX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE JACKSONVILLE FL
954 PM EST THU NOV 26 2009
.UPDATE...
A SECONDARY COLD FRONT JUST UPSTREAM WILL MOVE RAPIDLY ACROSS THE
AREA OVER THE NEXT FEW HOURS AND USHER IN A MUCH COLDER AIRMASS.
THE FRONT WILL BE VERY DRY...IN FACT SKIES WILL REMAIN CLEAR.
NORTHWEST WINDS WILL INCREASE IN ITS WAKE AND MAY BE GUSTY AT
TIMES OVERNIGHT. COLD AIR ADVECTION WILL BE QUITE STRONG. TEMPS
WILL TUMBLE BEHIND THE FRONT WITH MOST SITES DROPPING INTO THE MID
TO UPPER 30S. THE EXCEPTION WILL BE ALONG THE COAST WHERE MIN
TEMPS IN THE LOW 40S ARE EXPECTED. WINDCHILLS IN THE UPPER 20S
WILL BE POSSIBLE EARLY FRIDAY MORNING. TEMPS WILL STRUGGLE TO
CLIMB OUT OF THE 50S DURING THE DAY DESPITE CLEAR SKIES. NORTHERLY
WINDS WILL GUST PERHAPS UP TO 25 MPH AT TIMES...SO IT WILL FEEL
EVEN CHILLIER. LATEST GUIDANCE IS COMING IN A LITTLE COLDER...SO
WILL LOWER MAX TEMPS BY A COUPLE OF DEGREES. OTHERWISE...NO
CHANGES ARE PLANNED.
&&
.AVIATION...WINDS WILL INCREASE LATER TONIGHT AS THE SECONDARY
COLD FRONT MOVES THRU. BY MID MORNING GUSTS UP TO 20-25 KT ARE
EXPECTED. HIGH PRESSURE WILL APPROACH FROM THE WEST FRIDAY AND
WINDS WILL DECREASE LATE AFTN. MIXING OF WINDS OVERNIGHT WILL
PRECLUDE FOG AND VFR CONDS WILL CONTINUE.
&&
.MARINE...SCA CONDS ARE OCCURRING AT GRAYS REEF AND ST AUGUSTINE
BUOY WITH WINDS WNW 21G27KT. SEAS ARE SLOWLY BUILDING AND ARE
CURRENTLY 3-5 FT. STRONG PRESSURE GRADIENT WILL REMAIN THRU FRIDAY
THEN WINDS/SEAS WILL DECREASE THIS WEEKEND AS HIGH PRES BUILDS
OVER THE AREA.
&&
.PRELIMINARY POINT TEMPS/POPS...
AMG 34 59 33 65 / 0 0 0 0
SSI 42 60 41 62 / 0 0 0 0
JAX 38 61 36 65 / 0 0 0 0
SGJ 43 61 42 64 / 0 0 0 0
GNV 36 60 35 65 / 0 0 0 0
OCF 38 61 35 66 / 0 0 0 0
&&
.JAX WATCHES/WARNINGS/ADVISORIES...
FL...FIRE WEATHER WATCH FRIDAY AFTERNOON FOR ALACHUA-BAKER-BRADFORD-
CLAY-COLUMBIA-DUVAL-FLAGLER-GILCHRIST-HAMILTON-MARION-
NASSAU-PUTNAM-ST JOHNS-SUWANNEE-UNION.
FIRE WEATHER WATCH FROM SATURDAY MORNING THROUGH SATURDAY
AFTERNOON FOR ALACHUA-BAKER-BRADFORD-COLUMBIA-GILCHRIST-
HAMILTON-MARION-PUTNAM-SUWANNEE-UNION.
GA...NONE.
AM...SMALL CRAFT ADVISORY UNTIL 1 AM EST SATURDAY FOR ALTAMAHA SOUND
GA TO FERNANDINA BEACH FL 20 NM TO 60 NM OFFSHORE-
FERNANDINA BEACH TO ST AUGUSTINE FL 20 NM TO 60 NM OFFSHORE-
ST AUGUSTINE TO FLAGLER BEACH FL 20 NM TO 60 NM OFFSHORE.
&&
$$
JDS/MKT
