SYNOPSIS
Windy conditions will continue through this evening between low
pressure departing to the North and high pressure building in
from the West. High pressure will pivot to the South Friday,
then a weak area of low pressure will cross the region Friday
night into Saturday. Another area of low pressure will pass to
the South Sunday, then high pressure will return through the
first half of next week.
NEAR TERM /THROUGH TONIGHT/
West to NorthWest winds will continue to gust 40 to 50 (locally
up to around 55 mph) through mid evening. Gusts may be more
occasional mid to late evening, but the low-level jet actually
peaks in strength overhead just after midnight. Therefore, there
is some uncertainty as to exactly when the winds subside. Some
pressure rises behind a departing wave through the evening
suggest winds will peak then. The current forecast has winds
gradually decreasing in strength after 10pm, though would not be
surprised to see some lingering gusts (perhaps even a brief
uptick) at higher elevations above 3000 feet around midnight.
Will re-evaluate the ending time of advisories this evening.
Otherwise, widespread cloud cover will dissipate as dry air
moves in, especially East of the mountains tonight. High clouds
may begin to move in late/toward daybreak.
SHORT TERM /FRIDAY THROUGH SATURDAY NIGHT/
High pressure will briefly pass to the South Friday. High and
mid level clouds will increase Friday into Friday night as a
weak wave of low pressure approaches from the West. The highest
precipitation chances with this low will be along the MD/PA line
and near/West of the Appalachians.
Friday and Saturday both look breezy during the daylight hours
when mixing increases, though not as windy as today (Thursday).
LONG TERM /SUNDAY THROUGH THURSDAY/
As one low pressure system moves across New England and another
moves across the Carolinas and offshore the East Coast Sunday
night and Monday, high pressure will gradually build into the region
from the SouthWest. Dry conditions are expected through this
period with moderating temperatures. Highs Monday could reach
the lower 70s.
High pressure will continue to dominate Tuesday through Wednesday as
well. Dry conditions and high temperatures reaching the middle 70s
each day will be the story. A cold front could sag across the
Eastern Great Lakes Tuesday night through Wednesday, but is
expected to stay well North of our region at this time.
AVIATION /18Z THURSDAY THROUGH TUESDAY/
NW winds will peak roughly 21z-03z with peak gusts around or a
little over 40 kts. Winds will gradually subside overnight, but
bouts of breezy conditions are expected during the daytime hours
Friday and Saturday out of the NW (though brief/lighter SW flow
is anticipated Friday night). VFR conditions are expected
through the first half of the weekend, though some spotty light
rain is possible late Friday night into Saturday.
VFR conditions Sunday night through Monday night. Winds West less
than 5 knots Sunday night. Winds West to NorthWest 5 to 10 knots
Monday and Monday night.
MARINE
Gale conditions will linger well into tonight. Winds look to be
strongest late this afternoon through late this evening before
gradually diminishing. However, solid SCA conditions will likely
linger through Friday in NW flow. Winds turn SW Friday night,
then back to the NW Saturday with additional gusts of 15-25
knots possible.
No marine hazards Sunday night through Monday night. Winds
light and Westerly less than 5 knots Sunday night. Winds West to
NorthWest 10 knots Monday and Monday night.
LWX WATCHES/WARNINGS/ADVISORIES
DC...Wind Advisory until midnight EST tonight for DCZ001.
MD...Wind Advisory until midnight EST tonight for MDZ004>006-008-
011-013-014-016>018-503>508.
Wind Advisory until 1 AM EST Friday for MDZ001-501.
Wind Advisory until midnight EST tonight for MDZ003-502.
VA...Wind Advisory until midnight EST tonight for VAZ025>031-053-
054-501-502-505-506-526-527.
Wind Advisory until 1 AM EST Friday for VAZ503.
Wind Advisory until midnight EST tonight for VAZ504-507-508.
WV...Wind Advisory until midnight EST tonight for WVZ053.
Wind Advisory until 1 AM EST Friday for WVZ501-503-505.
Wind Advisory until midnight EST tonight for WVZ050>052-055-
502-504-506.
MARINE...Gale Warning until 6 AM EST Friday for ANZ530>534-537-539>541-
543.
Gale Warning until midnight EST tonight for ANZ535-536-538-542.
