Area Forecast Discussion
Issued by NWS Sterling, VA

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000
FXUS61 KLWX 251313
AFDLWX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
913 AM EDT TUE AUG 25 2015

.SYNOPSIS...
A COLD FRONT WILL STALL OUT OVER SOUTHERN VIRGINIA TODAY WHILE
HIGH PRESSURE APPROACHES FROM THE NORTH AND WEST. HIGH PRESSURE
WILL BUILD OVER THE REGION FOR WEDNESDAY AND THURSDAY. THE
BOUNDARY WILL RETURN NORTH AS A WARM FRONT...PASSING THROUGH OUR
AREA FRIDAY INTO THE WEEKEND.

&&

.NEAR TERM /THROUGH TONIGHT/...
WEAK COLD FRONT WILL EXIT THE REGION THIS MORNING. LINGERING
SHOWER ACTIVITY WELL EAST OF I-95 WILL COME TO AN END BY THIS
AFTERNOON AS LOW LEVEL FLOW TURNS TO THE W-NW AND DRIER AIR
ADVECTS IN FROM THE WEST.

TEMPERATURES WILL BE COOLER AND THE AIRMASS WILL BE NOTICEABLY
DRIER THAN YESTERDAY. AFTERNOON HIGH TEMPERATURES WILL LIKELY
REACH THE UPPER 70S WEST OF THE BLUE RIDGE...LOW TO MID 80S EAST
OF THE BLUE RIDE AND ACROSS THE BALTIMORE AND WASHINGTON DC METRO
AREAS. DEWPOINTS IN THE 50S WILL MAKE FOR PLEASANT CONDITIONS.

MOSTLY CLEAR SKIES WILL FOLLOW FOR TONIGHT. OVERNIGHT LOWS WILL
DIP BACK INTO THE 50S WEST TO LOW TO MID 60S EAST. SOME PATCHY FOG
IS POSSIBLE IN THE TYPICAL LOCALES...PRIMARILY ACROSS INLAND
PORTIONS OF VIRGINIA.

&&

.SHORT TERM /WEDNESDAY THROUGH WEDNESDAY NIGHT/...
HIGH PRESSURE WILL REMAIN IN CONTROL ON WEDNESDAY. HIGH
TEMPERATURES WILL ONCE AGAIN REACH THE 70S WEST TO THE LOW 80S
EAST OF THE BLUE RIDGE.

HIGH PRESSURE WILL CONTINUE TO INFLUENCE OUT WEATHER FOR
WEDNESDAY NIGHT WITH DRY AND COOL CONDITIONS. MIN TEMPS WILL
RANGE FROM THE 40S AND 50S IN THE POTOMAC HIGHLANDS TO THE UPPER
60S IN DOWNTOWN WASHINGTON AND BALTIMORE.

&&

.LONG TERM /THURSDAY THROUGH MONDAY/...
HIGH PRESSURE WILL CONTINUE TO BRING DRY CONDITIONS ALONG WITH
LOW HUMIDITY FOR THURSDAY. A BOUNDARY TO OUR SOUTH WILL RETURN AS
A WARM FRONT...SLOWLY PASSING THROUGH OUR AREA FRIDAY AND
SATURDAY. THE BOUNDARY WILL BE WEAK...SO THE FORECAST REMAINS DRY.
HOWEVER...HUMIDITY WILL SLOWLY RETURN DURING THIS PERIOD.

SOUTHERLY FLOW WILL TAKE OVER FOR SUNDAY AND MONDAY BEHIND THE
WARM FRONT AND AROUND HIGH PRESSURE OVER THE ATLANTIC. WARM AND
HUMID CONDITIONS ARE EXPECTED. A POPUP SHOWER OR THUNDERSTORM
CANNOT BE RULED OUT IN THE AFTERNOON AND EVENING HOURS...BUT MUCH
OF THE TIME SHOULD TURN OUT DRY.

&&

.AVIATION /13Z TUESDAY THROUGH SATURDAY/...
VFR CONDITIONS EXPECTED THROUGH SATURDAY WITH LIGHT WEST TO
NORTHWEST FLOW THRU WEDNESDAY.

&&

.MARINE...
HIGH PRESSURE WILL REMAIN OVER THE WATERS THROUGH WEDNESDAY. A
NORTH TO NORTHWEST FLOW IS EXPECTED OVERNIGHT WEDNESDAY INTO
THURSDAY. A SMALL CRAFT ADVISORY MAY BE NEEDED FOR PORTIONS OF THE
WATERS DURING THIS TIME. OTHERWISE...NO MARINE HEADLINES ARE
EXPECTED FOR THE REST OF THURSDAY THROUGH SATURDAY. A POPUP SHOWER
OR THUNDERSTORM IS POSSIBLE EARLY NEXT WEEK...BUT MUCH OF THE TIME
SHOULD BE DRY.

&&

.TIDES/COASTAL FLOODING...
TIDAL ANOMALIES REMAIN CLOSE TO ONE FOOT THIS MORNING. ANOMALIES
WILL DECREASE TODAY DUE TO A NORTHWEST FLOW.

&&

.LWX WATCHES/WARNINGS/ADVISORIES...
DC...NONE.
MD...NONE.
VA...NONE.
WV...NONE.
MARINE...NONE.

&&

$$
SYNOPSIS...BJL/RCM
NEAR TERM...RCM/KRW
SHORT TERM...BJL/KRW
LONG TERM...BJL
AVIATION...BJL/RCM/KRW
MARINE...BJL/RCM/KRW
TIDES/COASTAL FLOODING...KRW/RCM



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