York, Maine 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

782
FXUS61 KGYX 160638
AFDGYX

Area Forecast Discussion
National Weather Service Gray ME
238 AM EDT Fri May 16 2025

.SYNOPSIS...
A weak pattern with low pressure offshore will support humid
conditions and hit and miss showers this afternoon and evening.
Unsettled weather continues for the weekend as a more robust
system brings showers and thunderstorm chances by Saturday
night. Sunday will continue unsettled with an upper level low
overhead. Monday looks a bit improved but shower chances are
still expected.

&&

.NEAR TERM /TODAY/...
The dense fog advisory remains in effect for the coastal plain
and portions of central ME for early this morning. Several
observations continue to show 1/4 mile or less visibilities.

The fog will thin and lift during the morning hours and the low
clouds will thin as well allowing for periods of strong solar
radiation. This will yield high temperatures well into the 70s
to around 80 at many locations. The caveat will be along the
coast where stratus and fog will likely remain, especially on
the Midcoast. This along with easterly winds will allow for much
cooler temperatures there.

While the temperatures and dewpoints will aid in a good amount
of surface-based CAPE this afternoon, forcing for ascent will be
minimal at best so most of the afternoon will remain dry aside
from a couple of pop-up showers and storms here and there. A
slightly more organized short wave trough along with height
falls will approach late in the day possibly allowing for a
somewhat greater coverage in showers and thunderstorms into the
evening hours.

Fog should start rolling back inland toward sunset.

&&

.SHORT TERM /TONIGHT THROUGH 6 PM SATURDAY/...
Dense fog will once again be possible on the coastal plain
overnight as the air mass remains rather moist and stagnant with
light onshore flow.

Otherwise, after a few evening showers and perhaps a few
thunderstorms it should be mostly dry overnight. However, a few
showers and an isolated thunderstorm cannot be ruled out as
heights continue to fall.

Upper level low pressure approaches on Saturday along with an
attendant warm front and occlusion. The increased forcing for
ascent will allow for a showery and cooler day. The warm front
and associated triple point will attempt to get into southern NH
during the afternoon and this would allow for temperatures there
to rise well into the 70s while most of the rest of the forecast
area remains in the 50s and 60s. This warm front and triple
point could be a focus for more robust thunderstorms across
southern and perhaps western NH during the afternoon hours and
this will continue to be monitored.

&&

.LONG TERM /SATURDAY NIGHT THROUGH THURSDAY/...
Key Points:

-Rainy weekend ahead, with most consistent rainfall expected
 from heavy showers Saturday afternoon.

-Showery conditions on Sunday with widespread light rain north of
the mountains.

-Showery weather wraps up Monday evening, with a drier
Tuesday/Wednesday.

-Unsettled weather returns for the end of next week.

Details:

Sunday, the center of the low moves across northern NH and ME,
allowing for more light rain Sunday with some showers also making
down to the rest of NH and Maine. The low may hover over NH and ME
for a while, continuing the showers possibly through Monday evening.

Conditions should dry out at least a little by Tuesday as the
aforementioned low moves off into the Atlantic. The end of the week
may feature unsettled weather as another upper-level low moves in
from the southwest.

&&

.AVIATION /07Z FRIDAY THROUGH TUESDAY/...
Short Term...IFR to LIFR conditions likely at most terminals
through about 13z (especially coastal terminals). Vsbys and cigs
will rise through the morning hours with many locations VFR by
early afternoon except perhaps at RKD. Low stratus and fog rolls
back in tonight.

Long term...Restrictions may be down during showers, a few
thunderstorms and rain that will be moving through the area
Saturday through Monday. At this time, the best chances to see
reduced restrictions look to arrive Saturday evening as a front
moves across the NH and ME.

&&

.MARINE...
Short Term...Light winds and seas generally less than 3 feet are
expected through today and tonight. However, fog will be an
issue on the waters today and tonight with vsbys 1/2 mile or
less.

Long Term...Southeasterly flow at 8-14kts expected on Saturday.
A low moves across the area, shifting winds to the southwest at
7-10kts by Sunday. As the low continues to move out to sea,
winds shift to northwesterlies at 11-17kts by Monday, with winds
staying there through Wednesday morning. Seas of 2-4ft are
expected Saturday through Wednesday.

&&

.GYX WATCHES/WARNINGS/ADVISORIES...
ME...Dense Fog Advisory until 9 AM EDT this morning for MEZ018>028.
NH...Dense Fog Advisory until 9 AM EDT this morning for NHZ014.
MARINE...None.

&&

$$


NEAR TERM...Ekster
SHORT TERM...Ekster
LONG TERM...Palmer