FXUS62 KJAX 030239
AFDJAX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE JACKSONVILLE FL
939 PM EST WED DEC 2 2009
...TORNADO WATCH 792 IN EFFECT THROUGH 4 AM FOR PORTIONS OF
NORTHEAST FLORIDA...
.UPDATE...BROKEN SQUALL LINE CONTINUES TO PRESS EASTWARD ACROSS
OUR EASTERN FLORIDA ZONES THIS EVENING ROUGHLY FROM SGJ SOUTHWARD
TOWARD EAST OF OCF. STRONG JET DYNAMICS AND MODEST LOW LEVEL INSTABILITY
CONTINUE TO SUPPORT STRONG TO AT TIMES SEVERE STORMS ACROSS OUR SE
FL ZONES AND A TORNADO WATCH REMAINS IN EFFECT FOR CLAY...PUTNAM...ST
JOHNS... FLAGLER AND MARION COUNTIES THROUGH 4 AM. ANTICIPATE
DROPPING THE TORNADO WATCH BEFORE THEN AS CONVECTION DECREASES
ACROSS THE AREA FROM W-E.
A BRIEF RE-CAP OF TODAY...STRONGEST STORMS OCCURRED OVER OUR GA ZONES
WHERE SEVERAL CELLS EXHIBITED STRONG SUPERCELL FEATURES INCLUDING
PERSISTENT MESOCYCLONES. WE RECEIVED SCATTERED SEVERE STRENGTH WIND
DAMAGE REPORTS...BUT NO CONFIRMED TORNADO TOUCHDOWNS AS OF 9 PM THIS
EVENING. FARTHER SOUTH ACROSS NORTH FLORIDA...SPECIFICALLY THE
SUWANNEE RIVER VALLEY...A FEW BOWING SEGMENTS CROSSED THE AREA...BUT
AT THIS TIME NO WIDESPREAD DAMAGE REPORTS HAVE BEEN RECEIVED.
REST OF TONIGHT AND MOSTLY CLOUDY SKIES WILL BECOME PARTLY CLOUDY
LATE FROM W TO E AS A COLD FRONT NOW EXTENDING N-S JUST EAST OF
TALLAHASSEE SLOWLY PUSHES EASTWARD ACROSS OUR CWA. WINDS WILL
GRADUALLY VEER FROM SW TONIGHT TO WNW ON THU AS TEMPS RISE INTO
THE MID 60S TO LOWER 70S.
&&
.AVIATION...PREVAILING MVFR EXPECTED AT FL TERMINALS TONIGHT WITH
LLWS THROUGH 06Z FOR SSI TO AROUND 12Z FOR GNV. TEMPO IFR POSSIBLE
FOR SSI AND DUVAL COUNTY TERMINALS EARLY THU MORNING AS LOW CLOUDS
NOTED OVER THE FL PANHANDLE APPROACH ON THE BACKSIDE OF THE COLD
FRONT. LIFR MOST LIKELY FOR GNV WHERE LOW LEVEL MOISTURE WILL BE
HIGHER DUE TO PROXIMITY TO LINGERING CONVECTION.
&&
.MARINE...MAY BE ABLE TO DROP SCA DOWN TO A SCEC FOR NEARSHORE
LEGS IN THE NEXT CWA PACKAGE AS WINDS AT SAUF1 ARE DOWN TO
11G21KT. SCA STILL LOOKS GOOD FOR OFFSHORE LEGS WITH BUOY 41012
AND 41009 SUSTAINED SSW 25G31KTS AND COMBINED SEAS 8 FT.
&&
.PRELIMINARY POINT TEMPS/POPS...
AMG 51 65 40 56 / 20 0 10 20
SSI 56 67 47 59 / 60 0 10 40
JAX 58 70 46 60 / 70 10 10 60
SGJ 62 70 52 63 / 80 10 20 70
GNV 59 71 47 60 / 70 10 20 70
OCF 61 72 48 60 / 80 10 20 70
&&
.JAX WATCHES/WARNINGS/ADVISORIES...
FL...NONE.
GA...NONE.
AM...SMALL CRAFT ADVISORY UNTIL 10 AM EST THURSDAY 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.
SMALL CRAFT ADVISORY UNTIL 5 AM EST THURSDAY FOR ALTAMAHA SOUND
GA TO FERNANDINA BEACH FL OUT 20 NM-FERNANDINA BEACH TO ST
AUGUSTINE FL OUT 20 NM-ST AUGUSTINE TO FLAGLER BEACH FL OUT
20 NM.
&&
$$
ENYEDI/DEESE/PETERSON/PRESNALL
