FXUS62 KFFC 221926
AFDFFC

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
226 PM EST TUE DEC 22 2009

.SHORT TERM /TONIGHT THROUGH THURSDAY NIGHT/...
SHORT TERM MODELS CONTINUE TO BE IN PRETTY GOOD AGREEMENT THIS RUN.  
THERE ARE SOME MINOR DISCREPANCIES BUT THE OVERALL SOLUTIONS ARE 
CLOSE.  THE UPPER LOW OVER THE PACIFIC NORTHWEST DEEPENS AS IT DIGS 
INTO THE DESERT SOUTHWEST THROUGH WEDNESDAY EVENING...THEN LIFTS 
INTO THE CENTRAL PLAINS THROUGH THURSDAY NIGHT.  THE UPPER FLOW 
ACROSS THE SOUTHEAST WILL BECOME MORE SOUTHWEST WITH TIME... 
INCREASING MOISTURE ACROSS THE FORECAST AREA.  THIS SOLUTION SLOWS 
DOWN THE ONSET OF RAINFALL OVER THE SOUTHEAST AS OVERRUNNING SETS UP 
THURSDAY.  MODELS CONTINUE TO SHOW COLD AIR DAMMING AND WEDGE 
SETTING UP ON WEDNESDAY WITH COOLER NORTHEAST AND EAST FLOW ACROSS 
THE AREA THROUGH THURSDAY NIGHT.  MODELS SHOW STRONG H85 JET ACROSS 
THE AREA THURSDAY AFTERNOON AND THURSDAY NIGHT...WITH PERIODS OF 
HEAVY RAIN POSSIBLE BEGINNING THURSDAY AFTERNOON.  MODEL QPF NOT AS 
HIGH AS THE PAST SEVERAL DAYS BUT SEE POTENTIAL FOR 1-2 INCHES WITH 
ISOLATED HEAVIER AMOUNTS...AND WILL CONTINUE HYDROLOGIC OUTLOOK FOR 
THURSDAY AND THURSDAY NIGHT.  WILL KEEP ISOLATED THUNDER IN ACROSS 
CENTRAL PORTIONS THURSDAY EVENING AS INSTABILITY MINIMAL.  GUIDANCE 
TEMPERATURES SHOWING A COOL DOWN OF HIGH TEMPERATURES THROUGH THE END 
OF THE WEEK.  OVERNIGHT MINS HAVE BEEN RUNNING A WARM THE PAST 
COUPLE OF DAYS AND WITH CLEAR SKIES...LIGHT WINDS CONTINUING FIRST 
PERIOD WILL UNDERCUT COOLER MAV ONCE AGAIN. 

.LONG TERM /FRIDAY THROUGH TUESDAY/...
MODELS QUICKLY PUSH THE FRONT THROUGH THE AREA ON FRIDAY WITH DRIER 
AIR ON TAP AS SURFACE HIGH PRESSURE BUILDS IN ACROSS THE AREA. GFS
IS BRINGING ANOTHER SYSTEM ACROSS THE NORTHERN GULF EARLY NEXT 
WEEK...HOWEVER THE ECMWF NOT PICKING UP THE SYSTEM AT ALL. LOW 
CONFIDENCE THIS FAR OUT AND WILL NOT MAKE ANY CHANGES TO THE 
EXTENDED THIS FORECAST.

&&

.PRELIMINARY POINT TEMPS/POPS...
ATHENS          33  54  36  48  40 /   0   0   5  60 100 
ATLANTA         38  57  39  51  39 /   0   5   5  80 100 
BLAIRSVILLE     27  52  31  47  38 /   0   5   5  70 100 
CARTERSVILLE    32  53  37  52  42 /   0   5   5  90 100 
COLUMBUS        35  60  44  57  46 /   0  10  10  90 100 
GAINESVILLE     36  53  36  47  36 /   0   5   5  70 100 
MACON           30  61  40  57  47 /   0   5   5  70 100 
ROME            30  56  38  56  42 /   0   5  10  90 100 
PEACHTREE CITY  32  58  36  52  40 /   0   5   5  90 100 
VIDALIA         34  60  40  61  52 /   0   0   5  40  90 

&&

.FFC WATCHES/WARNINGS/ADVISORIES...
NONE.
&&

$$

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