000 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