Gorham, Maine 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

558
FXUS61 KGYX 240250
AFDGYX

Area Forecast Discussion
National Weather Service Gray ME
1050 PM EDT Fri May 23 2025

.SYNOPSIS...
Lingering bands of rain gradually weaken through tonight, but
showers will remain into Saturday as low pressure moves through
the Gulf of Maine. It will take until Sunday before we get some
slow improvement to the weather and temperatures. It will be
much warmer and brighter by the time we reach Monday, and the
warming and drying trend will continue into the middle of next
week.

&&

.NEAR TERM /THROUGH TONIGHT/...
1050 PM Update...Again most changes were just to fine tune PoPs
as shower coverage has begun to decrease and should continue to
do so through the overnight period.

630 PM Update...Mainly just minor changes to PoPs as showers
continue to pivot through the area this evening. Also decided to
cancel the SCA for Penobscot Bay a couple hours ahead of
schedule as wind gusts are dropping off quickly with low
pressure continuing to pull away.

Previous Discussion...
The coastal low continues to drift through the Gulf of Maine
into the Canadian Maritimes. At the same time, the upper level
low follows in it`s wake overnight, bringing more showers to
southern areas through the evening. Only a gradual lessening of
shower coverage is expected through the overnight. With the
clouds and showers, temperatures only slowly cool through the
overnight, with lows settling into the 30s across the north, and
40s elsewhere.

&&

.SHORT TERM /SATURDAY THROUGH SATURDAY NIGHT/...
The upper level low moves through Maine and into Atlantic
Canada tomorrow. This keeps greater shower coverage across the
higher terrain, as well as holds temperatures into the 40s.
Elsewhere under the belly of the low, more breaks of sunshine
are expected, allowing temps to warm into the mid to upper 50s.
These relatively warmer temps come with a price through, as more
pop up scattered showers likely develop with the added
instability. So the message overall is to make the most of the
sun when you see it tomorrow, because it likely won`t be lasting
for long.

Conditions gradually become drier during the overnight hours
tomorrow night. Some scattered showers linger across the higher
terrain with a weak upslope flow. Downwind of the mountains
showers mostly come to an end. Temperatures are quite similar
again, with lows in the 30s across the north, and 40s elsewhere.

&&

.LONG TERM /SUNDAY THROUGH FRIDAY/...
Evening Update...No significant changes with latest NBM
guidance ingested. Looking at a warmer and dryer start to next
week before chances for showers return late week.

Upper-level low is expected to be more or less centered near
the Bay of Fundy on Sunday and will then continue to move
farther away into the Maritimes by Monday. While shower chances
will trend downward from what is expected for Saturday, the low
should still be close enough to generate enough some lift, and
low-level lapse will be steep to result in 100-200 J/kg of low-
level instability each day. This should be sufficient enough for
isolated to scattered showers, mainly in the afternoons, or
least partly to mostly cloudy skies. Temperatures continue to
warm with upper 50s to lower 60s for highs Sunday and then mid
60s to low 70s on Monday away from the coast.

Things further dry out from Tuesday through at least Wednesday
as ridging builds into the Northeast. The warming trend also
continues with highs expected to be mostly in the 70s, but the
gradient will probably be weak enough to allow the seabreeze to
move in pretty quickly to keep the coast a bit cooler. The high
pressure shifts off to the south and east by late week as an
upper trough takes shape over eastern Canada and the Great Lakes
that will head toward New England. As has been the case a lot
lately, shower chances increase toward next weekend, possibly as
early as Thursday as some ensemble members suggest an earlier
trough arrival.

&&

.AVIATION /03Z SATURDAY THROUGH WEDNESDAY/...
Short Term...MVFR to IFR conditions with showers trend toward
mostly IFR overnight. Gradual improvement back to MVFR is likely
into Saturday afternoon with scattered showers, and VFR
possible by late in the day across southern terminals. Gradual
improvement likely continues toward more VFR by late Saturday
night.

Long Term...Primarily VFR from Sunday through the middle of
next week. The exception may be periods MVFR cigs Sunday and
maybe Monday mainly at HIE and LEB. A few showers also remain in
the forecast for Sunday and Monday, but chances/coverage will
probably be too low for TAF mention other than HIE.

&&

.MARINE...
Short Term...Low pressure continues to drift into the Canadian
Maritimes tonight, and slowly moves further east through
tomorrow night. SCA conditions continue into tomorrow morning as
seas gradually subside.

Long Term...Conditions look to remain below mostly below SCA
levels through at least the middle of next week with broad high
pressure over the NE. Southwest winds do increase toward late
week with high pressure sliding to the southeast of the waters,
but it`s uncertain if gusts will reach SCA levels.

&&

.GYX WATCHES/WARNINGS/ADVISORIES...
ME...None.
NH...None.
MARINE...Small Craft Advisory until 11 AM EDT Saturday for ANZ150-
     152>154.

&&

$$

NEAR TERM...Baron/Clair
SHORT TERM...Clair
LONG TERM...Baron/Combs