Area Forecast Discussion
Issued by NWS Portland, ME

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FXUS61 KGYX 251913
AFDGYX

Area Forecast Discussion
National Weather Service Gray ME
313 PM EDT Sun Sep 25 2016

.SYNOPSIS...
Cold high pressure crosses the region tonight. Most towns away
from the coast will see their first frost or freezing
temperatures tonight. A approaching cold front brings showers
through the area on Monday night and Tuesday. Drier weather
returns for midweek.

&&

.NEAR TERM /UNTIL 6 AM MONDAY MORNING/...
Sfc high noses in from the west overnight, and this will set up
mainly clear and chilly conditions, as winds die off quickly
after sunset in most places. May see light NW flow linger closer
to the coast, with lows in the upper 30s to around 40 on the coast
and in interior seacoast NH.

Frost/freeze products issued for all but coastal zones, the urban
corridor of the Merrimack valley in Hillsborough, and Rockingham
county. Could see some patchy frost in central and northern
Rockingham, and even in some colder spots in the coastal zones,
but overall should be limited in these areas. Will likely see some
fog develop in the mountain valleys and CT valley.


&&

.SHORT TERM /6 AM MONDAY MORNING THROUGH MONDAY NIGHT/...
Monday will see the high shift offshore in the afternoon and a
weak SW flow begin to develop. Skies will be mainly sunny with
some encroaching cirrus late. Temps will be a little warmer than
Sunday.  Should see a sea breeze develop along the immediate
coast, but with light winds inland, this will only a have a couple
degree effect on max temps in the area, given SSTs around or just
above 60F.

Approaching cold front overspreads clouds across the region
Monday night, with showers moving in after midnight lingering into
Tuesday morning. Lows will likely occur around or before
midnight, but will be warmer than previous nights, ranging from
the mid 40s to low 50s.

&&

.LONG TERM /TUESDAY THROUGH SATURDAY/...
Models are still fairly in line through Wednesday. There is
uncertainty towards the end of the week on if we will be dry or
wet into the weekend. This all depends on were the low pressure
forms later on in the week and if it stays far enough offshore as
it moves northeast ward.

Tuesday will be showery with the frontal passage during the day.
As high pressure builds into the northeast, Wednesday and part of
Thursday look dry. Uncertainty in the placement/movement of the
low pressure may cause rain showers and cloudier skies on Thursday
through Friday. Will keep chance PoPs for this time frame.

Temperatures will be near normal for this time of season.

&&

.AVIATION /19Z SUNDAY THROUGH FRIDAY/...
Short Term...Winds diminish around sunset across the entire area. VFR
through Monday evening, except for valley fog at KHIE/KLEB
tonight. Flight restrictions possible after midnight Monday night
as showers move in from the west.

Long Term...MVFR or IFR conditions possible in showers will occur
on Tuesday as a cold front moves northeast. Low level moisture
from Tuesday showers will allow for patchy fog in the morning on
Wednesday. Valley fog is also possible on Thursday morning at
KHIE and KLEB.

&&

.MARINE...
Short Term...Winds/seas diminish tonight and Tuesday, but will
still start to increase from the SW Monday night, although
remaining below SCA levels.

Long Term...Southerly flow over the waters will transition to
northeast flow during midweek. Over the week, wave heights will
range from 3 to 8 feet with the highest waves being toward the
end of the week.

&&

.GYX WATCHES/WARNINGS/ADVISORIES...
ME...Freeze Warning from midnight tonight to 8 AM EDT Monday for
     MEZ007>009.
     Frost Advisory from midnight tonight to 8 AM EDT Monday for
     MEZ012>014-018>022.
NH...Freeze Warning from midnight tonight to 8 AM EDT Monday for
     NHZ001>003.
     Frost Advisory from midnight tonight to 8 AM EDT Monday for
     NHZ004>011-015.
MARINE...None.

&&

$$
SYNOPSIS...
NEAR TERM...Cempa
SHORT TERM...Cempa
LONG TERM...Becker
AVIATION...Becker/Cempa
MARINE...Becker/Cempa


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