896
FXUS61 KLWX 111919
AFDLWX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
319 PM EDT THU SEP 11 2025
SYNOPSIS
SURFACE HIGH PRESSURE REMAINS OVERHEAD THROUGH THE END OF THE WEEK
AND INTO THE WEEKEND. DRY CONDITIONS CONTINUE THROUGH THE WEEKEND AS
A MOISTURE STARVED COLD FRONT DROPS THROUGH THE FORECAST AREA. HIGH
PRESSURE RETURNS THROUGH MIDWEEK.
NEAR TERM /THROUGH TONIGHT/
SURFACE HIGH PRESSURE WILL CONTINUE TO BUILD OVERHEAD WITH DRY
CONDITIONS PERSISTING THROUGH THE OVERNIGHT. HIGH TEMPERATURES
THIS AFTERNOON WILL RISE INTO THE UPPER 70S TO LOW 80S WITH
HIGHER ELEVATIONS STAYING IN THE UPPER 60S TO LOW 70S. VISIBLE
SATELLITE LOOP AS OF 3:15PM SHOWS CUMULUS CLOUDS ACROSS THE
FORECAST AREA YIELDING MOSTLY SUNNY SKIES FOR MOST. CLOUD COVER
DECREASES TONIGHT WITH MOSTLY CLEAR SKIES EXPECTED. OVERNIGHT
LOW TEMPERATURES WILL BE IN THE 50S FOR MOST WITH ONLY THOSE
NEAR THE WATERS AND METRO AREAS STAYING IN THE 60S.
SHORT TERM /FRIDAY THROUGH SATURDAY NIGHT/
SURFACE HIGH PRESSURE REMAINS OVERHEAD FRIDAY AND SATURDAY AS AN
UPPER LEVEL TROUGH PIVOTS OVER THE EAST COAST. MOSTLY SUNNY SKIES,
DRY CONDITIONS, AND HIGH TEMPERATURES IN THE LOW 80S ARE EXPECTED
ACROSS THE FORECAST AREA BOTH DAYS. THE EXCEPTION WILL BE HIGHER
ELEVATIONS WHERE HIGH TEMPERATURES STAY IN THE 70S. LIGHT WINDS OUT
OF THE NORTHEAST BECOME CALM OVERNIGHT WITH PATCHY FOG POSSIBLY
DEVELOPING IN THE VALLEYS.OVERNIGHT LOW TEMPERATURES WILL BE IN THE
50S FOR MOST WITH THOSE NEAR THE METRO AREAS STAYING IN THE 60S.
AS HIGH PRESSURE SHIFTS EASTWARD ON SATURDAY, WINDS SHIFT TO
SOUTHERLY. TEMPERATURES WILL BE SLIGHTLY WARMER COMPARED TO FRIDAY
DUE TO SOUTHERLY FLOW. LIMITED CLOUD COVER AND DRY CONDITIONS
CONTINUE SATURDAY AFTERNOON. OVERNIGHT LOW TEMPERATURES WILL BE
SLIGHTLY WARMER WITH THE I-95 CORRIDOR STAYING IN THE 60S.
ELSEWHERE, LOW TEMPERATURES IN THE 50S ARE EXPECTED.
LONG TERM /SUNDAY THROUGH WEDNESDAY/
UPPER TROUGH OVER THE NORTHEAST IS EXPECTED TO LIFT OUT SUNDAY WITH
A REX BLOCK PATTERN DEVELOPING OVER THE UPPER MIDWEST AND SOUTHERN
ONTARIO. A DRY COLD FRONT WILL CROSS THE AREA SUNDAY NIGHT WITH SFC
HIGH PRESSURE BUILDING FOR MUCH OF NEXT WEEK. CONTINUED DRY WEATHER
IS EXPECTED ALONG WITH ABOVE NORMAL TEMPERATURES.
AVIATION /18Z THURSDAY THROUGH TUESDAY/
NORTH WINDS THIS AFTERNOON SHIFT TO NORTHEAST FRIDAY MORNING
BEFORE SHIFTING TO EASTERLY IN THE AFTERNOON. ON SATURDAY, WINDS
SHIFT SOUTH AS SURFACE HIGH PRESSURE SHIFTS OFFSHORE. EACH
NIGHT, WINDS BECOME LIGHT AND VARIABLE ACROSS ALL TERMINALS. VFR
CONDITIONS ARE EXPECTED TO CONTINUE THIS AFTERNOON THROUGH
SATURDAY AS HIGH PRESSURE REMAINS IN CONTROL. KCHO MAY SEE
REDUCTIONS IN VISIBILITY AS PATCHY FOG DEVELOPS TONIGHT, THOUGH
VFR CONDITIONS ARE EXPECTED TO RETURN EARLY FRIDAY AND PERSIST
THROUGH SATURDAY.
NO SIGNIFICANT WEATHER IS EXPECTED SUNDAY INTO MONDAY.
MARINE
NORTH WINDS THIS AFTERNOON SHIFT TO NORTHEAST FRIDAY MORNING
BEFORE SHIFTING TO EASTERLY IN THE AFTERNOON. ON SATURDAY, WINDS
SHIFT SOUTH AS SURFACE HIGH PRESSURE SHIFTS OFFSHORE. WINDS ARE
EXPECTED TO REMAIN BELOW SCA CRITERIA EACH DAY, BLOWING 5 TO 10
KNOTS EACH AFTERNOON. NO MARINE HAZARDS ARE EXPECTED THROUGH
SATURDAY.
SUB-SCA WINDS ARE EXPECTED THROUGH TUE.
TIDES/COASTAL FLOODING
SLACKENING WINDS MAY ALLOW SOME WATER TO SLOSH NORTHWARD TODAY
AND FRIDAY, WITH MINOR FLOODING POSSIBLE IN SENSITIVE LOCATIONS
DURING THE AFTERNOON AND EVENING. THE PATTERN DOESN'T CHANGE
APPRECIABLY, SO SPOTTY MARGINALLY MINOR FLOODING MAY CONTINUE
INTO THE WEEKEND, ESPECIALLY SINCE WINDS MAY EVENTUALLY TURN
SOUTHERLY.
LWX WATCHES/WARNINGS/ADVISORIES
DC...NONE.
MD...COASTAL FLOOD ADVISORY FROM 5 PM THIS AFTERNOON TO MIDNIGHT
EDT TONIGHT FOR MDZ014.
COASTAL FLOOD ADVISORY FROM 5 PM THIS AFTERNOON TO 8 PM EDT
THIS EVENING FOR MDZ016.
VA...COASTAL FLOOD ADVISORY FROM 5 PM THIS AFTERNOON TO 8 PM EDT
THIS EVENING FOR VAZ057.
WV...NONE.
MARINE...NONE.
SYNOPSIS...AVS
NEAR TERM...AVS
SHORT TERM...AVS
LONG TERM...LFR
AVIATION...AVS/LFR
MARINE...AVS/LFR
TIDES/COASTAL FLOODING...CJL/EST
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