FXUS62 KCAE 261127
AFDCAE

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE COLUMBIA SC
627 AM EST THU NOV 26 2009

.SYNOPSIS...

AFTER DEALING WITH SOME MORNING FOG...A COLD FRONT WILL CROSS THE
AREA TODAY...FOLLOWED BY DRY HIGH PRESSURE WHICH WILL CONTROL OUR
WEATHER THROUGH THE WEEKEND. THE COLDEST AIR OF THE SEASON SO FAR
WILL BE ASSOCIATED WITH THIS AIR MASS. ANOTHER STORM SYSTEM MAY
AFFECT THE REGION EARLY NEXT WEEK.

&&

.NEAR TERM /UNTIL 6 PM THIS EVENING/...

DUE TO THE COMBINATION OF CLEAR SKIES...LIGHT WINDS...AND
LINGERING LOW LEVEL MOISTURE...WIDESPREAD DENSE FOG WILL BE FOUND ACROSS
THE CWA EARLY THIS MORNING. DENSE FOG ADVISORY WILL REMAIN THIS
MORNING.  SHOULD BEGIN TO MIX OUT A LITTLE AFTER SUNRISE...AND BY
10 AM CONDITIONS SHOULD BE IMPROVING TO MOSTLY SUNNY. DRIER AIR
WILL MOVE IN BEHIND A WEAK FRONT THAT WILL MOVE THROUGH LATER IN
THE DAY.  WENT WITH A BLEND OF GUIDANCE...WHICH GIVES AFTERNOON
TEMPS GENERALLY IN THE MID 60S UNDER FULL SUNSHINE.

&&

.SHORT TERM /6 PM THIS EVENING THROUGH FRIDAY NIGHT/...

DRY CONDITIONS. COLD TEMPERATURES OVERNIGHT TONIGHT...WITH
GUIDANCE GIVING READINGS IN THE MID 30S. EVEN WITH CLEAR
SKIES...DO NOT EXPECT TO HAVE MUCH FROST DUE TO SURFACE WINDS
REMAINING UP OVERNIGHT. WILL INCLUDE MENTION OF PATCHY FROST IN
THE GRIDS MAINLY FOR SHELTERED AREAS. WINDS OVERNIGHT TONIGHT
COULD ALSO BE AN ISSUE ON AREA LAKES. STRONG WINDS OFF THE SURFACE
SHOULD BE ABLE TO MIX DOWN OVER THE CENTER OF THE LARGER
LAKES...WITH CONDITIONS APPROACHING LAKE WIND ADVISORY CRITERIA.
FOR NOW WILL KEEP WINDS 15 TO 20 KNOTS...WITH HIGHER GUSTS
MENTIONED. DAY SHIFT MAY NEED TO HOIST AN ADVISORY. WILL ALSO
MENTION IN HAZARDOUS WEATHER OUTLOOK.

HIGHS ON FRIDAY WILL REMAIN ONLY IN THE 50S. FRIDAY NIGHT COULD
SEE SOME AREAS SEEING THEIR FIRST FREEZE OF THE SEASON...WITH
GUIDANCE NUMBERS GENERALLY 32-34. FREEZE WARNING MAY BE REQUIRED
FOR THAT TIME FRAME IF LATER GUIDANCE CONTINUES TO INDICATE
FREEZING CONDITIONS. WILL CONTINUE TO NOTE THE COLD TEMPERATURES
IN THE HAZARDOUS WEATHER OUTLOOK.

&&

.LONG TERM /SATURDAY THROUGH WEDNESDAY/...

LITTLE CHANGES MADE IN THE EXTENDED FORECAST. THE DRY RIDGE
SHOULD CONTINUE TO DOMINATE THROUGH THE WEEKEND. LOWS WILL
PROBABLY BE AROUND FREEZING AGAIN SATURDAY NIGHT WITH CLEAR SKIES
AND STRONG RADIATIONAL COOLING. GUIDANCE STILL SHOWING AN
INCREASE IN MOISTURE ON MONDAY ASSOCIATED WITH AN APPROACHING COLD
FRONT. FRONT MOVES THROUGH TUESDAY MORNING...WITH CHANCE POPS
AHEAD OF ITS PASSAGE. LOWER POPS TUESDAY BETWEEN SYSTEMS. THEN
ANOTHER INCREASE INTO WEDNESDAY AS ANOTHER LOW MOVES OUT OF THE
GULF TOWARDS THE REGION.

&&

.AVIATION /12Z THURSDAY THROUGH MONDAY/...

DENSE FOG WITH LIFR CONDITIONS WILL START THE FORECAST PERIOD AT
CAE/CUB/OGB...WHILE DRIER AIR IS WORKING IN FROM THE WEST AND
AGS/DNL WILL START OUT MVFR/VFR. FOG SHOULD BURN OFF BY 14Z-15Z
WITH VFR CIGS/VSBYS PREVAILING FOR THE REMAINDER OF THE 24 HR
FORECAST PERIOD. WINDS WILL BE THE MAIN ISSUE THIS AFTERNOON AND
TONIGHT AS WINDS INCREASE TO AROUND 10 TO 15 MPH AS A COLD FRONT
PUSHES THROUGH AND HIGH PRESSURE BEGINS BUILDING INTO THE REGION.
WINDS SHOULD STAY UP ENOUGH AND DRIER AIR WORKING IN SHOULD
PREVENT FOG TONIGHT.

EXTENDED AVIATION OUTLOOK...MAINLY VFR CONDITIONS EXPECTED THROUGH 
THE PERIOD.

&&

.CAE WATCHES/WARNINGS/ADVISORIES...
SC...DENSE FOG ADVISORY UNTIL 10 AM EST THIS MORNING FOR SCZ015-016-
     018-020>022-025>031-035>038-041.
GA...DENSE FOG ADVISORY UNTIL 10 AM EST THIS MORNING FOR GAZ040-
     063>065-077.

&&

$$

AVIATION...HC