868
FXUS61 KGYX 151847
AFDGYX

Area Forecast Discussion
National Weather Service Gray ME
247 PM EDT Sun Jun 15 2025

.SYNOPSIS...
Temperatures creep up a few more degrees Monday across the
interior, with readings cooler near the coast where winds will
be off the waters. The warm up will continue through midweek
until a cold front approaches from the west around Thursday
which will bring an increased chance of showers and
thunderstorms.

&&

.NEAR TERM /THROUGH TONIGHT/...
Light onshore flow continues through the afternoon before
easing around sunset. Any isolated showers across the higher
terrain through the afternoon and early evening hours dissipate
with the loss of daytime heating.

Mainly clear skies continue through the overnight in most
areas, allowing for another night of radiational cooling. A few
more high clouds likely linger across southern New Hampshire,
helping to keep temps a little warmer with lows in the low 50s
overnight. Elsewhere, lows likely dip into the 40s. Despite
winds mostly becoming calm at the surface, moisture continues to
move in on a light onshore flow aloft. Similar to last night,
patchy fog is likely to develop again tonight as moisture banks
up east of the mountains. With a bit more moisture in place,
coverage is likely to be a little more widespread and longer
lasting that last night`t fog was.

&&

.SHORT TERM /MONDAY THROUGH MONDAY NIGHT/...
Light onshore flow continues as high pressure slowly moves
further off to the east on Monday, with increasing sunshine
through the morning hours as the fog lifts and dissipates. Fair
weather cumulus clouds develop again tomorrow, with some
isolated showers across the higher terrain. Overall tomorrow
looks quite similar to today`s conditions, but is likely to be a
few degrees warmer across the area.

During the overnight hours tomorrow, moisture likely continues
to move in from the south through the overnight. Some scattered
showers or patchy drizzle may start to move into southern New
Hampshire during the overnight hours as a warm front gradually
moves through the Northeast. A few showers may also move across
northern areas through the overnight as a weak mid level trough
lifts through. With more clouds and moisture around, lows likely
remain in the 50s in most spots.

&&

.LONG TERM /TUESDAY THROUGH SATURDAY/...
High pressure will remain just offshore on Tuesday. The will aid
in the development of a WAA pattern with a few showers and
possibly a thunderstorm during the afternoon, especially in the
far interior where heating should be greater. With the WAA
pattern will come clouds too, so we expect a mostly cloudy day
with temperatures really not that much warmer than the mid 70s
inland and around 70, if not 60s along the coast.

The WAA pattern will continue on Wednesday with an increasing
chance for showers and thunderstorms. SFC temps should get into
the 80s during the afternoon after any morning action. Dew
points will be on the rise also.

A significant cold front approaches the region on Thursday.
Temperatures in the 80s to around 90 with dew points well into
the 60s should make for a hot and humid day at many locations in
the forecast area as long as clouds and showers don`t get going
too early. Depending on the timing of the cold front, a few
thunderstorms may be strong to severe late afternoon and
evening.

&&

.AVIATION /18Z SUNDAY THROUGH FRIDAY/...
Short Term...VFR prevails into this evening. IFR to LIFR likely
then spreads inland with marine fog and low stratus from the
coast through the evening hours. LEB and HIE likely miss the
marine fog and stratus, but see patchy valley fog develop late
tonight. The fog then burns off through the morning, with VFR
conditions likely returning to all terminals by late morning.
IFR and LIFR will be possible again Monday night with fog and
low status, especially across southern and coastal terminals.

Long Term...Onshore flow probably brings in some low stratus
and fog, at least at the coast Tuesday night and Wednesday and
may last into Thursday. A strong cold front moves through Thu
evening with a chance of showers and thunderstorms.

&&

.MARINE...
Short Term...Fair conditions continue through Monday night as
high pressure remains centered east of the waters. Some areas of
fog are possible tonight, especially closer to the coast.

Long Term...High pressure gradually moves eastward across the
North Atlantic through midweek next week with generally fair
conditions. However, fog will be possible. A cold front
approaches late in the week, with SCA conditions possible in
southwesterly flow ahead of the front by late Wednesday or
Thursday.

&&

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

&&

$$


NEAR TERM...Clair
SHORT TERM...Clair
LONG TERM...Ekster