FXUS61 KAKQ 272321
AFDAKQ

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE WAKEFIELD VA
621 PM EST FRI NOV 27 2009

.SYNOPSIS...
HIGH PRESSURE BUILDS INTO THE AREA TONIGHT AND SATURDAY...BEFORE
MOVING OFF THE SOUTHEAST COAST ON SUNDAY. A COLD FRONT WILL PUSH
ACROSS THE REGION MONDAY AFTERNOON THROUGH MONDAY NIGHT. HIGH
PRESSURE WILL BUILD BACK INTO THE AREA FOR TUESDAY AND WEDNESDAY.

&&

.NEAR TERM /UNTIL 6 AM SATURDAY MORNING/...
S/W THAT SPARKED THE INSTABILITY RAIN/SLEET SHWRS THIS AFTRN NOW
MOVG OFFSHORE. ALL PCPN WITH THIS FTR NOW OFFSHORE AS WELL.
SUBSIDENCE BEHIND IT HAS DRYED OUT COLUMN WITH ONLY SOME LINGERING
SC FROM NRN NECK ON E TOWARD THE DELMARVA. 

UPDATED GRIDS/ZFP TO REFLECT THESE CNDTNS. ALSO NOTE THAT WND GUSTS
HAVE DMNSHD SINCE SS OVER THE LAND. XPCT THIS TREND TO CONT THRU THE
NITE. AREAS FROM THE NRN NECK ON E ACROSS THE DELMARVA SHUD STILL SEE
THE GUSTY WNDS (ARND 30 MPH) THRU THE EVE.

CAA ALLOWS MIN TEMPS TO RANG THRU THE 30S TO NR 40.

&&

.SHORT TERM /6 AM SATURDAY MORNING THROUGH MONDAY/...
HI PRES SLIDING OVR THE REGION THEN OFF THE SE CST WILL MAINTAIN
DRY WX SAT THRU SUN NGT. AFTR A COLD START...SNY AND COOL SAT WITH
MAX TEMPS RANGING THRU THE 50S. CLEAR AND COLD AGAIN SAT NGT WITH
LOWS RANGING THRU THE 30S TO LWR 40S. MSTLY SNY AND MILDER ON
SUN...AS SW WNDS DEVELOP ON THE BACK SIDE OF THE HI. MAX TEMPS
WILL RANGE THRU THE 60S.

COLD FRNT WILL THEN APPROACH FM THE WNW SUN NGT...THEN PUSH ACRS
THE REGION MON AFTN THRU MON NGT. CHC FOR SHRAS ALL AREAS MON
AFTN...WHICH WILL LIKELY CONTINUE THRU MON NGT OVR THE SE CNTIES.
AT THIS TIME...FRNTL BNDRY LUKS LIKE AN ANA-FRNT...WITH MOST IF
NOT ALL PCPN OCCURRING BEHIND THE FRNT. MAX TEMPS WILL RANGE FM
THE MID 50S NW TO THE UPR 60S EXTRM SE.

&&

.LONG TERM /MONDAY NIGHT THROUGH FRIDAY/...
FRONTAL BOUNDARY DRAPED ACROSS THE GRT LKS INTO THE SRN PLAINS WILL 
SLOWLY TREK TWRD THE RGN ON MON AS A LOW PRES SYSTEM RIDES ALONG IT. 
LOOK FOR SHRA ACTIVITY TO CONTINUE INTO ERLY TUE BEFORE ENDING NW.SE 
AS HIGH PRES STARTS TO BUILD BACK INTO THE RGN. STRONG UPR LVL 
SYSTEM DVLPS OVER THE SRN CALIF ON SAT AND DIGS FURTHER OVER NRN 
MEXICO/SRN TX INTO MON. SYSTEM PUSHES INTO THE GULF COAST TUE/WED 
AND QUICKLY MOVES TWRDS THE RGN ON THU. GFS/ECMWF IN FAIRLY GOOD 
AGREEMENT WITH H50 FLOW...BUT QUESTION REMAIN ON TRACK AND DVLPMNT 
OF ACTUAL SFC FEATURES. THIS MAY BE DUE TO HOW MUCH INTERACTION OF 
THE NRN STREAM FLOW GETS INCORPORATED INTO THE SRN STREAM FLOW. 
ECMWF TRIES TO INCORPORATE THE TWO LEADING TO MORE OF A INLAND SFC 
TRACK...WHILE THE GFS KEEPS THE TWO APART TILL AFTER SYSTEM MOVES 
OFFSHORE. CHCS/AMOUNTS OF PRECIP PER USUAL WILL BE DEPENDENT ON THE 
ACTUAL TRACK OF THE SYSTEM AND FCST WILL STAY FAIRLY IN THE MEDIUM 
OF SOLNS THIS FAR OUT.

&&

.AVIATION /23Z FRIDAY THROUGH WEDNESDAY/...
ANOTHER MID LEVEL DISTURBANCE WILL PUSH ACROSS THE REGION THIS
AFTERNOON. THIS IS ACCOMPANIED WITH SOME BKN CLOUDS IN THE VFR
RANGE. THIS IS ALSO INCREASING WINDS WITH SOME GUSTS UP TO 30KT
DURING THE AFTERNOON. BY THIS EVENING WINDS WILL BEGIN TO SLOWLY
DECREASE AND SKIES WILL CLEAR. LOOKING FOR VFR CONDITIONS FOR
SATURDAY AND SUNDAY. THE NEXT CHC FOR PRECIP AND POSSIBLE LOWERING
CIGS AND VSBY TO MVFR OR IFR WILL BE LTR MON/TUE.

&&

.MARINE...
WILL CONTINUE WITH GALES OVER ALL WATERS THROUGH THE OVERNIGHT HOURS 
AS A SECONDARY SURGE OF WINDS MOVES OVER THE WATERS INTO TONIGHT 
BEFORE GRADIENTS STARTS TO RELAX OVER SRN ZONES. WILL CONTINUE WITH 
ENDING TIME OF GALES FOR NOW OVER NRN COASTAL THIRD. 

HEADLINES FOR SCA FOR SEAS WL LIKELY BE NEEDED AFTER GALES COME DOWN 
TONIGHT OR ERY SATURDAY OVER THE BAY/SOUTHERN COASTAL WATERS BEFORE 
SEAS SUBSIDE. CONDITIONS IMPROVE FOR SUN/MON AS FLOW LOOKS TO TURN 
SSW AS HIGH PRESSURE BUILDS OVER THE SOUTHEAST CONUS. ANOTHER FRONT 
APPROACHES FROM THE WEST BY LATE MON WITH HEADLINES LIKELY NEEDED 
ALONG/BEHIND PASSAGE.

&&

.AKQ WATCHES/WARNINGS/ADVISORIES...
MD...NONE.
NC...NONE.
VA...NONE.
MARINE...GALE WARNING UNTIL 5 AM EST SATURDAY FOR ANZ630>633-654-656-
     658.
     GALE WARNING UNTIL 6 PM EST SATURDAY FOR ANZ650-652.

&&

$$
SYNOPSIS...TMG/MPR
NEAR TERM...MPR
SHORT TERM...TMG
LONG TERM...CCW
AVIATION...JAB
MARINE...CCW