FXUS62 KJAX 240157
AFDJAX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE JACKSONVILLE FL
854 PM EST WED DEC 23 2009

.UPDATE...SURFACE RIDGING DOWN THE EAST COAST HAS A LIGHT NE FLOW
OVER THE AREA. ABUNDANT HIGH CLOUDS AND INCREASED BOUNDARY LAYER
WINDS WILL KEEP TEMPERATURES IN THE 40S TO MID 50S TONIGHT WITH
ONLY LIGHT FOG EXPECTED. INCREASING ISENTROPIC LIFT WILL MOISTEN
AIRMASS WITH RAIN CHANCES STARTING THURSDAY AFTERNOON AND
INCREASING THURSDAY NIGHT INTO FRIDAY MORNING. STILL A CHANCE OF
STRONG TO SEVERE STORMS THURSDAY NIGHT/EARLY FRIDAY WITH MODELS SHOWING
STRONG DYNAMICS WITH WEAK INSTABILITY.

&&

.AVIATION...LOW CEILINGS ARE IMPACTING KJAX AND KVQQ WITH CEILINGS 
AROUND 1000 FEET AGL. THESE LOW CEILINGS WILL LIKELY CONTINUE TO 
IMPACT THESE SITES THROUGH AROUND 04Z...AS FAVORABLE CONDITIONS FOR 
ISENTROPIC LIFT HAVE ESTABLISHED ACROSS THESE AREAS WITH NORTHEAST 
WINDS AT THE SURFACE QUICKLY VEERING EAST AND INCREASING TO AROUND 
15 KNOTS. FOG WILL CONTINUE TO IMPACT KVQQ AT TIMES THROUGH AROUND 
12Z...AND POSSIBLY KGNV LATER TONIGHT.  
 
&&

.MARINE...INVERTED TROUGH OVER THE LOCAL WATERS WILL RESULT IN VARIABLE
WINDS FROM NORTHEAST TO EAST OVERNIGHT AND CONTINUING THROUGH 
THURSDAY MORNING. WIND SPEEDS WILL LIKELY AVERAGE BETWEEN 10 TO 15 
KNOTS THROUGH EARLY THURSDAY MORNING...WITH EASTERLY WINDS 
INCREASING DURING THE DAY PROMPTING SCEC/SCA HEADLINES.     

&&

.JAX WATCHES/WARNINGS/ADVISORIES...
FL...NONE.
GA...NONE.
AM...SMALL CRAFT ADVISORY FROM 3 PM THURSDAY TO 1 PM EST FRIDAY 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.

&&

$$

ZIBURA/ZAPPE/KEEGAN