Bath, Maine 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

931
FXUS61 KGYX 081913
AFDGYX

Area Forecast Discussion
National Weather Service Gray ME
313 PM EDT Sun Jun 8 2025

.SYNOPSIS...
A break in the unsettled weather continues into Monday as high
pressure briefly builds in. Conditions then become unsettled
with widespread showers Tuesday with fog and drizzle also
possible Monday night into the first part of Tuesday. Improving
conditions are then expected for the second half of the week,
with perhaps yet another unsettled Saturday in store.

&&

.NEAR TERM /THROUGH TONIGHT/...
Impacts and Key Messages:
* No significant impacts expected

Conditions remain dry through the evening as high pressure
remains in control. A shortwave approaches tonight with
increasing moisture as upper level flow turns southwesterly.
With this being the case, skies look to end up partly cloudy
overnight with valley fog possibly developing again overnight.
With weak onshore flow, fog advecting onto the coastal plain
looks likely as well. Dewpoints are a bit lower tonight and
temperatures will get more time to cool before it gets too
cloudy, so lows look to be more in the low 50s along the coast
and valleys that fog in. North of the mountains and inland areas
that stay clearer stand the best chance of dropping into the
upper 40s.

&&

.SHORT TERM /MONDAY THROUGH MONDAY NIGHT/...
Impacts and Key Messages:
* No significant impacts expected

A wave of low pressure will begin to push high pressure out on
Monday. This change in flow will also push out any remaining
haze left over the area. Increasing moisture could contribute to
low stratus/fog and patchy drizzle across southern and coastal
areas hanging around during the day. This would make for a
little bit of a cooler day with temperatures in the upper 60s
and low 70s. Even north of the mountains and through the
foothills where it is expected to be clearer, poor mixing would
keep high temperatures in the low 70s.

Moisture continues to increase and push northward Monday night
along with a warm front approaching the area. This will allow
areas of low stratus/fog and patchy drizzle to expand
northward, with maybe even a few true showers in spots as clouds
overspread the area from the south and forcing increases with
the frontal boundary getting closer. All of this will result in
low temperatures in the low 50s for areas south of the
mountains, with upper 40s to the north.

&&

.LONG TERM /TUESDAY THROUGH SUNDAY/...
Moisture steadily increases Tuesday with cloudy skies, a few
showers, and fog in the morning. There may also be drizzle at times
with forecast soundings showing the moisture depth pretty
shallow initially. Showers then become likely through the day
as we get increasing lift as low pressure approaches and crosses
through the area. A few hundred J/kg of MUCAPE may be
sufficient for a few non-severe storms as well. Models have come
into better agreement on timing with most of the rain during
the day and then tapering off during the evening hours. PWATS
climbing to near 1.50" will support heavy downpours, but with
the progressive nature, not anticipating any hydro issues as
ensembles continue to advertise less than 10% probabilities for
over an inch of rain. Flow behind the system looks pretty weak
Tuesday night, so we`ll probably see fog redevelop. Highs
Tuesday will be limited to the 60s with clouds and showers, and
expected lows Tuesday night will be in the 50s.

Drier and warmer conditions are then expected Wednesday through
Friday with highs in the 70s to low 80s, but broad troughing aloft
over the Northeast US will allow for a few weak waves/fronts to
cross through. These could each bring low-end shower chances, but
nothing significant or widespread is expected.

Looking toward next weekend...a frontal boundary may stall near or
just south of the area while models are latching onto an upper-level
wave riding along the boundary to generating some showers. At the
same time, there is a decent signal for high pressure to attempt
build in from the north, which could end up suppressing the
front/upper wave to the south. However, this is not a done deal as
there are still ensemble members that bring rain showers farther
north into the area. Still, it looks like the better potential for
drier weather will be farther to the north and east while southern
areas have the higher chances of showers (30-40%) for next weekend.

&&

.AVIATION /19Z SUNDAY THROUGH FRIDAY/...
Short Term...Hazy skies will continue into the evening, but it
hasn`t been leading to any visibility restrictions so it is left
out of the TAFs for the most part. Mainly VFR tonight with a
possibility for valley fog to develop as well as easterly winds
advecting fog onto the coastal plain. This fog may be slow to
clear with low ceilings hanging on Monday along the coast, but
elsewhere fog will clear around 13z and end up VFR. Ceilings
will begin to lower for everyone Monday night as another system
approaches the region.

Long Term...IFR to LIFR restrictions are likely to start out
Tuesday morning due to low stratus, fog, and possibly drizzle at
times. Restrictions continue to be likely the rest of the day
night with showers for much of the area and maybe a couple of
storms. Precipitation tapers off Tuesday evening into Tuesday
night, but conditions then favor more fog development which
could cause additional restrictions. Mainly VFR Wednesday
through Friday, but there still could be additional low chances
for showers.

&&

.MARINE...
Short Term...Conditions are expected to remain below SCA
thresholds through Monday. Areas of dense fog are possible
tonight through Monday, with patchy drizzle possible as well on
Monday as a system approaches the region.

Long Term...SCA conditions are not currently expected over the
next week. Weak low pressure and front cross the waters Tuesday
into Tuesday night bringing fog and a chance of showers.
Southwest flow sets up mid to late week with a few additional
weak systems crossing the waters. High pressure may build in
from the north over the weekend, but a front may also stall out
near or just south of the waters going into the weekend.

&&

.EQUIPMENT...
NOAA Weather radio transmitters remain off the air due to a
phone line issue. We hope to have them back in service Monday.


&&

.GYX WATCHES/WARNINGS/ADVISORIES...
ME...Air Quality Alert until 11 PM EDT this evening for MEZ007>009-
     012>014-033.
     Beach Hazards Statement until 8 PM EDT this evening for
     MEZ025>028.
NH...Air Quality Alert until 10 AM EDT Monday for NHZ001>015.
MARINE...None.

&&

$$

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