000
FXUS61 KLWX 180049
AFDLWX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
849 PM EDT WED MAR 17 2010

.SYNOPSIS...
HIGH PRESSURE WILL REMAIN OVER THE AREA THROUGH THE END OF THE
WEEK...BRINGING DRY AND MILD CONDITIONS. A STRONG UPPER DISTURBANCE
AND ITS ASSOCIATED COLD FRONT ARE EXPECTED TO IMPACT THE REGION LATE
IN THE WEEKEND.

.NEAR TERM /THROUGH THURSDAY/...

CLEAR AND COOL CONDITIONS WILL PREVAIL TONIGHT WITH LOWS RANGING
FROM THE UPPER 20S IN THE HIGHER TERRAIN TO AROUND 40 IN THE
METROPOLITAN AREAS.

MOSTLY CLEAR SKIES ARE EXPECTED ONCE AGAIN TOMORROW...WITH MAX TEMPS
RANGING FROM THE MIDDLE 50S IN THE HIGHER TERRAIN TO LOWER 70S IN
CENTRAL VA.

.SHORT TERM /THURSDAY NIGHT THROUGH FRIDAY/...
HIGH PRESSURE WILL REMAIN OVER THE REGION THURSDAY NIGHT AND
FRIDAY...BRINGING DRY AND MILD CONDITIONS. MAX TEMPS FRIDAY WILL
RANGE FROM THE 50S IN PORTIONS OF THE POTOMAC HIGHLANDS TO THE UPPER
60S AND 70S ACROSS MOST OTHER LOCATIONS.

.LONG TERM /FRIDAY NIGHT THROUGH WEDNESDAY/...
HIGH PRESSURE WILL CONTINUE TO BRING DRY AND MILD CONDITIONS THROUGH
SATURDAY. A COLD FRONT WILL PASS THROUGH THE REGION LATER SUNDAY
INTO MONDAY...BRINGING A GOOD CHANCE FOR SHOWERS. HIGH PRESSURE WILL
BUILD IN BEHIND THE FRONT FOR TUESDAY AND WEDNESDAY...BRINGING A
RETURN OF DRY AND CHILLIER CONDITIONS.

.AVIATION /TONIGHT THROUGH MONDAY/...

VFR CONDITIONS AND LIGHT AND VARIABLE WINDS WILL PREVAIL THROUGH
TOMORROW.

HIGH PRESSURE WILL BRING VFR CONDITIONS THROUGH SATURDAY. A COLD
FRONT WILL PASS THROUGH LATER SUNDAY INTO MONDAY...BRINGING A GOOD
CHANCE FOR SHOWERS ALONG WITH SUBVFR CIGS/VSBYS.

.MARINE...

LIGHT AND VARIABLE WINDS ARE EXPECTED ACROSS THE WATERS OVERNIGHT.
NW WINDS AOB 10 KT IS EXPECTED TOMORROW.

NO FLAGS ARE EXPECTED THROUGH THE END OF THE WEEK. A COLD FRONT WILL
PASS THROUGH THE WATERS LATER SUNDAY INTO MONDAY. A SMALL CRAFT
ADVISORY MAY BE WARRANTED FOR PORTIONS OF THE WATERS EARLY NEXT
WEEK.

.TIDES/COASTAL FLOODING...
MINOR COASTAL FLOOD THRESHOLDS WERE MET AT QUITE A FEW PLACES THIS
MORNING DURING HIGH TIDE. HAVE GONE AHEAD AND EXTENDED THE HEADLINE
FOR ALEXANDRIA AND DC THROUGH TONIGHTS HIGH TIDE. ELSEWHERE...WILL
BE A MARGINAL EVENT...BUT WATER LEVELS WILL REACH NEAR MINOR COASTAL
FLOODING THRESHOLDS. THE POSITIVE TIDAL DEPARTURES AND FRESH WATER
RUN OFF WILL CONTINUE.

.LWX WATCHES/WARNINGS/ADVISORIES...
DC...COASTAL FLOOD ADVISORY UNTIL 9 AM EDT THURSDAY FOR DCZ001.
MD...COASTAL FLOOD ADVISORY UNTIL 9 AM EDT THURSDAY FOR MDZ007-011-
     013-014-016018.
VA...COASTAL FLOOD ADVISORY UNTIL 9 AM EDT THURSDAY FOR VAZ052055-
     057.
WV...NONE.
MARINE...NONE.

UPDATE...WOODY
PRVS...NWL/BJL