Area Forecast Discussion
Issued by NWS Portland, ME

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FXUS61 KGYX 250805

Area Forecast Discussion
National Weather Service Gray ME
305 AM EST Sat Nov 25 2017

A cold front will approach from the west today and will cross
the region tonight. A shallow ridge of high pressure will build
in from the west on Sunday. A secondary cold front will drop
south through the region Sunday night and Monday. High pressure
will build in from the west Monday night and will shift east on
Tuesday. A cold front will push east through the region Tuesday
night. High pressure will build in from the west on Wednesday.


After a mostly sunny start to the day... a cold front
approaching from the west will bring increasing clouds in the
afternoon. Not looking for a lot of forcing with this moisture
starved boundary but a brief shower will be possible by late in
the day with best pops across northern zones. Temperatures will
top out well above normal in a warm southwest flow ahead of the
front. Highs will range from the mid to upper 40s north and
lower to mid 50s south.


Cold front will push offshore this evening and associated
showers will push east of the region after midnight downwind of
the mountains. There will be a continuing chance of showers in
developing upslope flow in the north with rain showers
transitioning to snow showers as colder air moves back into the
region. Lows overnight will range through the 20s north and
lower to mid 30s south.

Upper trough will push in from the west on Sunday keeping skies
mostly cloudy with a few scattered snow showers possible. Once
again best chance of precip will be in the north. Temperatures
will get back close to normal ranging through the 30s to near 40
in the south.


Sunday night into Monday a short wave trough will be in the
process of moving through northern New England. This fast moving
system will result in increasing cloudiness and some light snow
showers across northern sections. Cool air will be reinforced
behind this system on Monday and Monday night with highs in the
mid 20s to near 30 north and mid 30s to lower 40s south with
moderate radiational cooling expected.

For the remainder of the week warm weather- or at least
temperatures closer to normal- will return as ridging crosses
the northeast. Highs should clear the freezing mark each day
north of the foothills, while farther south readings in the 40s
to near 50 are expected through the work week. Lows will range
from the teens to mid 20s north with mid 20s to mid 30s south.

Late Tuesday short wave energy pivots well to our north. This
will push a trailing cold front through and bring a few rain and
snow showers to the international border region late Tuesday
night into Wednesday. Downsloping will bring partly sunny skies
to the coastal plain midday Wednesday with this trend extending
to the mountains by the evening. Cloud cover increases Thursday
and Friday as a deepening trough axis moves towards the east
coast. This will be the next significant chance for
precipitation across the CWA, with the system bringing rain
and snow to much of the area, with p-type switching to snow
during the overnight hours over the coastal plain.


Short Term...VFR today through Sunday with areas of MVFR
ceilings in the mountains.

Long Term...VFR all terminals but perhaps areas of MVFR
ceilings in -SHSN for HIE Sunday night into Monday. Areas of
MVFR or lower ceilings and visibilities for HIE and LEB Tuesday
night into Wednesday...improving to VFR during the day.


Short Term...Continuing SCAs through today with another period
of SCA level winds possible in northwest flow on Sunday.

Long Term...Tuesday night into Wednesday SW/W winds will
approach strong SCA/near gales and seas increase to 5-8 ft with
a frontal passage.


MARINE...Small Craft Advisory until 7 PM EST this evening for



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