584 FXUS62 KFFC 280314 AFDFFC AREA FORECAST DISCUSSION...UPDATE NATIONAL WEATHER SERVICE PEACHTREE CITY GA 1014 PM EST SUN JAN 27 2013 .EVENING UPDATE... LATEST SURFACE MAP SHOWS HIGH PRESSURE ALONG THE MID ATLANTIC COAST WITH COOLER TEMPS DRAINING DOWN INTO NE AND EAST CENTRAL GA...WHERE THE COOLER OVERNIGHT LOWS ARE NOW EXPECTED. AS MID AND LOW CLOUDS BEGIN SPREADING INTO THE FORECAST AREA LATE THIS EVENING AND EARLY MONDAY MORNING...EXPECT THIS LID TO HELP HOLD TEMPS SLIGHTLY WARMER THEN CURRENTLY PLANNED. THEREFORE... PLAN TO UPDATE ZONES TO WARM PROJECTED OVERNIGHT LOWS UP A DEGREE OR TWO IN MOST PLACES... ESPECIALLY FOR ATLANTA AND AREAS WEST AND SOUTH. RADAR SHOWS AREAS OF LIGHT RAIN HOLDING NORTH IN TN...AND THIS TREND IS EXPECTED TO CONTINUE... SO NIL POPS STILL LOOK ON TRACK. THEREFORE... NO OTHER CHANGES ANTICIPATED AT THIS TIME. 39 .SHORT TERM /TONIGHT THROUGH TUESDAY/... /ISSUED AT 211 PM EST SUN JAN 27 2013/ MID LEVEL MOISTURE WORKING ACROSS THE AREA RESPONSIBLE FOR GENERAL CLOUDINESS ACROSS NORTH GA THIS AFTERNOON. MEANWHILE...COLD SURFACE HIGH WORKING DOWN THE EASTERN APPALACHIANS WILL WEDGE INTO THE REGION OVERNIGHT TONIGHT THROUGH MONDAY. AT THE SAME TIME SOUTH TO SOUTHWESTERLY WINDS ABOVE 950 MB WORKING OVER THE COOL AIR AT THE SURFACE WILL BRING CLOUDS INTO THE REGION OVERNIGHT TONIGHT THROUGH MONDAY. EXPECT VERY LITTLE IN THE WAY OF PRECIP BUT CLOUDS WILL AID IN KEEPING TEMPS DOWN A BIT ON MONDAY...PARTICULARLY ACROSS THE NORTHEAST SECTION OF GA. AS THE SURFACE HIGH DEPARTS LATE MONDAY...SOUTH WINDS AND MOISTURE TRANSPORT WILL AID IN AREAS OF FOG DEVELOPING AFTER MIDNIGHT MONDAY. WILL NEED TO MONITOR FOR POSSIBLE DENSE FOG ADVISORY ON LATER SHIFTS. VERY WARM DAY SETTING UP FOR TUESDAY AS STRONG SOUTHWESTERLY FLOW ALOFT SETS UP AHEAD OF AN APPROACHING TROF AND ASSOCIATED 140KT JET. SHOULD BE A BIT BREEZY ON TUESDAY WITH SOUTH WINDS AND TEMPERATURES NEAR OR ABOVE 70 DEGREES IN MOST LOCATIONS WHICH IS NOT EXPECTED TO BREAK ANY RECORDS BUT IT WILL COME CLOSE. RECORDS FOR TUESDAY BELOW LISTED BELOW. NO PRECIP IS EXPECTED THROUGH TUESDAY EVENING ACROSS NORTH AND CENTRAL GA. RECORDS FOR 01-29 MAX TEMPERATURE STATION HIGH YEAR KAHN 78 2002 KATL 77 1975 KCSG 81 1957 KMCN 81 1957 30 .LONG TERM /TUESDAY NIGHT THROUGH SUNDAY/... /ISSUED AT 211 PM EST SUN JAN 27 2013/ JUST A FEW CHANGES FROM THE PREVIOUS LONG TERM. BOTH GFS AND ECMWF HAVE COME TOGETHER ON TUESDAY NIGHT/WEDNESDAY SYSTEM WITH TIMING AND WITH STRENGTH. WILL INCREASE POPS SLIGHTLY ACROSS THE CWA ON WEDNESDAY. LOW LEVEL JET OF 60KTS SHOULD PROVIDE ENOUGH SHEAR FOR A FEW SEVERE THUNDERSTORMS. THE SYSTEM IS PROGGED TO EXIT THE CWA BY 12Z THU. A MUCH WEAKER SYSTEM WILL ROTATE THROUGH THE BASE OF THE UPPER TROUGH THURSDAY NIGHT AND EARLY FRIDAY. BOTH GFS/ECMWF HAVE MOISTURE IN EXTREME NORTH GEORGIA SHORTLY AFTER 00Z FRI. WILL ADD LOW POPS TO EXTREME NORTH GA THURSDAY NIGHT. WITH AN ARCTIC AIRMASS IN PLACE...IT WILL BE COLD ENOUGH FOR THE MAJORITY OF THIS TO FALL AS SNOW. HOWEVER IT IS A FAST MOVING AND MOISTURE STARVED SYSTEM SO DO NOT EXPECT MUCH MORE THAN A DUSTING OF SNOW AT THIS TIME. THE REST OF THE LONG TERM LOOKS GOOD. 17 && .AVIATION... 00Z UPDATE... SCT-BKN MID LEVEL CLOUDS ACROSS MOST TAF SITES AND THIS PATTERN WILL LIKELY PERSIST UNTIL LATE THIS EVENING WHEN INCREASING LOW-MID LEVEL MOISTURE SPREADS OVER THE COOL EASTERLY FLOW NEAR THE SURFACE... RESULTING IN AT LEAST MVFR CIGS AT MOST TAF SITES BY 05-06Z TONIGHT. ONCE MVFR CIGS SETTLE IN... THESE CIGS ARE EXPECTED TO PERSIST THROUGH THE REMAINING TAF PERIOD... WITH SOME SLIGHT IMPROVEMENT LIKELY MON AFTERNOON. NAM MOS STILL HINTS AT IFR CIGS DEVELOPING AROUND 12-14Z MON BUT ELEVATED WINDS AND DRY LAYER NEAR THE SURFACE WARRANTS HOLDING CIGS AT MVFR LEVELS FOR NOW. EAST WINDS AROUND 5-8KTS TONIGHT... WILL VEER MORE SE AROUND 6-8KTS MON AFTERNOON. //ATL CONFIDENCE...00Z UPDATE... MEDIUM ON TIMING OF MVFR CIGS TONIGHT. HIGH ON REMAINING ELEMENTS. 39 && .PRELIMINARY POINT TEMPS/POPS... ATHENS 38 55 43 70 / 5 5 5 10 ATLANTA 41 58 49 70 / 5 5 10 10 BLAIRSVILLE 34 53 41 62 / 10 10 10 10 CARTERSVILLE 38 57 46 71 / 5 5 10 10 COLUMBUS 46 68 53 75 / 5 5 5 10 GAINESVILLE 38 54 45 65 / 10 10 5 10 MACON 44 68 51 76 / 5 5 5 10 ROME 37 60 46 71 / 0 5 10 10 PEACHTREE CITY 39 61 45 72 / 5 5 10 10 VIDALIA 46 72 56 78 / 5 5 5 10 && .FFC WATCHES/WARNINGS/ADVISORIES... NONE. && $$ SHORT TERM...30/39 LONG TERM....17 AVIATION...39