463
FXUS61 KGYX 022327
AFDGYX

Area Forecast Discussion
National Weather Service Gray ME
727 PM EDT Tue Jun 2 2026

.WHAT HAS CHANGED...
No major changes were needed for this forecast update. Just
updated the aviation forecast and blended in the latest
observations to the sensible weather fields.

&&

.KEY MESSAGES...
1. Fair weather with warming temperatures through Thursday. Some
valley fog possible in the CT River Valley tonight.

2. Temperatures remain well above normal Friday, while southern
and coastal locations could see the heat linger into Saturday.
A cold front looks to bring relief into the second half of the
weekend, along with some scattered showers and thunderstorms.
Temperatures early next week return closer to normal for early
June.

&&

.DISCUSSION...
KEY MESSAGE 1 DESCRIPTION...

Upper level ridging builds in tonight through Thursday. The
result through the period will be dry weather, warming days, and
somewhat chilly nights at the better radiators. The only caveat
will be an isold shower on the Midcoast until around sunset this
evening. Some patchy valley fog possible again tonight in the
CT river valley. In addition, lowered min temps tonight closer
to statistical guidance. This yielded mid to upper 30s in the
mountain valleys so there may some some patchy frost.

Otherwise we`ll continue to warm up through the period with
relatively light winds and afternoon seabreezes. By Thursday
highs should be in the mid to upper 80s.

KEY MESSAGE 2 DESCRIPTION...

Heat spell continues Friday and perhaps into Saturday ahead of
a cold front that looks to cross the forecast area this weekend.
Impinging front Thursday night NW of New England will begin to
collapse an otherwise dominant ridging pattern in northern New
England. Recent trends have delayed this passage, with any
meaningful impact on temperatures not taking hold until Saturday
night.

Current forecast keeps Friday dry and hot, with NBM temps
reaching the mid to upper 80s across the interior and coast.
Record highs could be attainable at Portland should winds remain
westerly/offshore, but some guidance suggests winds over the
coastal waters becoming southerly into the afternoon. This could
have more an impact to the peninsulas of the Midcoast than much
of the southern coast. Thus it will depend on background winds
being strong enough to offset the potential for a seabreeze,
which could be strong given the land/sea temp gradient.

Front attempts to sink further into the forecast area Saturday,
and this is reflected in forecast highs. It could be another
warm day for southern NH into far southern ME where mid 80s will
be attainable, but highs top out in the 70s and lower 80s for
much of the northern half of the CWA. This front will also bring
the chance of showers and some embedded thunder to the area.
There is enough of a signal for CAPE to keep thunder in the
forecast for Sat afternoon, but still a wide spread to determine
if more organized storms are possible.

The front looks to make its full transit Saturday night into
Sunday, which will bring temps back towards normal Sunday and
into early next week. High pressure to the north should usher
precip associated with the front south, but there is some
variance on timing. With the moisture stream squeezed between
highs to the north and south, IVT likely eclipses 250 kg/m/s as
it advects from the Great Lakes. This would lead to increased
precip rates Sat night - Sun, but not currently concerning for
flood potential.

&&

.AVIATION /00Z WEDNESDAY THROUGH SUNDAY/...
Through Thursday...VFR conditions prevail through Thursday with
afternoon seabreezes. Some valley fog possible tonight in the
CT River Valley.

Outlook:

Wednesday/Wednesday night: VFR with light winds.

Friday: High pressure is favored with VFR conditions. However,
a sagging cold front may bring a few showers and storms to the
western ME mountains late Friday. These could create TEMPO IFR
restrictions should they pass over any terminal.

Saturday: Local MVFR to IFR conditions possible in sct showers
and storms, mainly for northern NH and far western ME. This
pushes south overnight.

Sunday: Showers and storms may linger and continue to bring the
possibility of TEMPO IFR TO MVFR restrictions, particularly in
more persistent RA.

&&

.MARINE...
Conditions will remain below SCA levels through Thursday with
warming temperatures as high pressure dominates the weathermap.

A cold front will attempt to cross the waters this weekend, but
timing is variable between Saturday and Sunday.

&&

.GYX WATCHES/WARNINGS/ADVISORIES...
ME...None.
NH...None.
MARINE...None.

&&

$$

DISCUSSION...Cornwell/Ekster/Hargrove
AVIATION...
MARINE...