958
FXUS61 KGYX 011931
AFDGYX

Area Forecast Discussion
National Weather Service Gray ME
331 PM EDT Sun Jun 1 2025

.SYNOPSIS...
Winds ease this evening and tonight with scattered showers
lingering in the mountains. A few showers last into Monday, but
afterward we start to dry out with a significant warm up heading
toward the middle of the week. A frontal boundary then
approaches from the west bringing increasing rain chances from
Thursday into the first part of the upcoming weekend.

&&

.NEAR TERM /UNTIL 6 AM MONDAY MORNING/...
Cumulus clouds continue to grow but flatten as dry air prevents
much vertical growth this afternoon. Showers to the west have
been easily dispersed by the Green Mtns, with just enough
downslope to knock down any deeper cu. Have kept light shower
chances in through mid afternoon as daytime heating continues.

Much of the cloud cover we see during the day should dissipate
through the evening with the loss of daytime insolation. Cirrus
is lacking from this system, and think points south and east of
the mountains/foothills could see a mostly clear evening through
midnight. Clouds may begin to spill further SE than the
foothills before daybreak Monday. Just a light breeze keeps
areas from seeing overnight fog or frost development with lows
in the mid 40s.

What falls as rain showers for the mountains and foothills
overnight and early Mon morning likely falls as snow for the
higher summits of the Whites. Light accumulations will be
possible.

&&

.SHORT TERM /6 AM MONDAY MORNING THROUGH MONDAY NIGHT/...
Light showers will be ongoing across the north Monday morning.
It is likely these pull north and east without rain chances
reaching the interior and coast, but can`t rule out a few
sprinkles through the afternoon. This is amid brief periods of
deeper moisture in sharpening upper trough.

Expect clouds to linger through the afternoon, but could thin as
NW flow aloft brings drier air. Westerly winds at the surface
will aid in advecting warmer temps into the forecast area, but a
push into the upper 60s to around 70 will depend on additional
afternoon sun.

Overnight, decoupling appears likely as clouds dissipate and sfc
winds become light. Radiational cooling should bring a cooler
night with more widespread low to mid 40s. In the northern
valleys, mid to upper 30s may be attainable, with sheltered low
spots seeing patchy frost.

&&

.LONG TERM /TUESDAY THROUGH SUNDAY/...
A 500-mb ridge builds into New England Tuesday and Wednesday
with plenty of subsidence and dry air to provide a couple of sunny
days. It will also get continuously warmer...with good mixing and
temperatures aloft to support temps well in the 70s to low 80s on
Tuesday and then mostly in the 80s on Wednesday (away from the
coast)...with 90 degrees not out of the question in a few areas as
temperatures can over-perform when the airmass is very dry.

Thursday`s temperatures may be similar to those of Wednesday, but
there will be more cloud cover as the ridge breaks down and moisture
increases ahead of a cold front. With the loss of subsidence from
the ridge and gained lift from the approaching front, we`ll see
increasing chances for showers in the afternoon and evening with a
few storms also possible. There could be some pretty hefty rain
rates with PWATS increasing with the GFS in particular advertising
above 1.50", which is above the 90th percentile for early June.

Models are hinting at a break in the precip Thursday night into
Friday morning, but there may be fog or low stratus with the
increasing low-level moisture. Precipitation chances then ramp back
up Friday into Saturday as Thursday`s front looks to get hung up
somewhere across the region or even lift back northward with
multiple waves of low pressure riding along it. Even though this is
a ways out and there are other factors at play (like where the front
sets up, etc), will have to watch for heavy rainfall potential
Friday and Saturday with ensembles from the GFS and ECMWF showing
30-50% probabilities of PWATS over 1.50", which would again
be above the 90th percentile for this time of year. There`s a signal
within the ensemble guidance for a drying trend going into Sunday
with an upper trough swinging through and pushing the frontal
boundary off to the south and east.

&&

.AVIATION /19Z SUNDAY THROUGH FRIDAY/...
Short Term...Daytime W gusts subside this evening, but winds
remain 5 to 8 kts overnight. Conditions remain VFR with the loss
of daytime cumulus field. Exception may be points towards the
mountains where MVFR ceilings persist with overnight SHRA. This
is likely to continue into Monday as well. Additional cumulus
field develops Monday for much of southern ME and NH, but not as
breezy.

Long Term...VFR prevails Tuesday through Wednesday night.
Showers likely return Thursday and Friday, and it looks like
there could be a few storms as well. Aside from restrictions
from showers/storms, IFR restrictions from fog and/or low
stratus are possible Thursday night into Friday morning.


&&

.MARINE...
Short Term...SW winds become southerly Monday as upper low moves
north and high pressure drifts to the south. This will allow
wave heights to decrease late tonight and Monday morning, with
sub-SCA levels through Monday night.

Long Term...Conditions expected to remain mostly below SCA
levels through this week. High pressure centered east of the
waters will promote southerly flow through Wednesday. A cold
front then approaches Thursday and looks to stall out in the
vicinity of the waters into the weekend. It`s possible winds may
increase to SCA levels at times late week into the weekend as
waves of low pressure pass long the frontal boundary.


&&

.GYX WATCHES/WARNINGS/ADVISORIES...
ME...High Surf Advisory until 8 PM EDT this evening for MEZ023>028.
NH...None.
MARINE...Small Craft Advisory until 11 AM EDT Monday for ANZ150-152.
     Small Craft Advisory until 11 PM EDT this evening for ANZ151-
     153-154.

&&

$$

NEAR TERM...Cornwell
SHORT TERM...Cornwell
LONG TERM...Combs