Area Forecast Discussion
Issued by NWS Portland, ME

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FXUS61 KGYX 260245
AFDGYX

Area Forecast Discussion
National Weather Service Gray ME
1045 PM EDT Sun Aug 25 2019

.SYNOPSIS...
High pressure will remain across region through the first half
of the week. This will provide dry weather and seasonably cool
temperatures. A series of frontal systems will cross the region
beginning mid week providing several chances for showers.

&&

.NEAR TERM /THROUGH MONDAY/...
10pm... Adjusted temps down yet again as the clear skies have
expanded even more and a couple favorite cooling spots were
already at the min temps.

6pm... Impressive expansive of clear
skies extending all the way from Price Edward Island to Lake
Superior and north to Happy Valley. Expect temperatures to drop
fairly quickly once sunsets as lower dewpoints have moved into
the region. Only minor temperature adjustments with this update.


High pressure will be the main feature over the next 48 hours
with continued clear/sunny skies and a lack of precipitation.
The high is currently centered near Newfoundland and will
meander first west on Monday and then south, bringing it
directly overhead Monday night.

Clouds associated with an upper level low rotating near Cape
Cod have moved out of NH and western Maine today, allowing for
full sunshine. Lower humidity values make it feel a little
cooler than it is, with a fall-like feel to the air. Tonight
will be clear with light winds allowing temperatures to drop
quickly into the lower to mid 40s in most spots. We will see a
few locations in the mountains bottom out around 40 degrees,
while the temperature will be closer to 50 degrees in the more
populated towns. Expecting another early morning with fog, with
more widespread dense fog likely, especially in mountain
valleys.

&&

.SHORT TERM /MONDAY NIGHT/...
Temperatures Monday will be slightly warmer than today in a few
spots, but overall similar. Surface flow will become more
southeasterly. Some clouds will push in from the east later in
the day Monday as a surface low develops in response to low
pressure now near Nova Scotia. High pressure shifts south by
Monday night. We will remain rain-free during this time with
lows dropping into the lower 40s to lower 50s. Even though the
high will be overhead Tuesday morning, radiational cooling
impacts will be lessened by increasing cloud cover and moisture.

&&

.LONG TERM /TUESDAY THROUGH SUNDAY/...
One more nice day on tap for Tuesday as a slow moving cold front
approaches from the west. Looking for mostly sunny skies and
high temperatures in the mid to upper 70s.

Cold front will continue its slow progress toward the region
Tuesday night and Wednesday. Looking for increasing clouds in
western zones with mostly clear skies in western Maine
overnight. Expect lows in the lower to mid 50s. Clouds will
lower and thicken on Wednesday as the front slowly shifts
into eastern New York by Wednesday evening. Expect shower
activity to hold off until the afternoon in western zones
with showers pushing into western Maine toward evening. Highs
on Wednesday will be 75 to 80 across most of the forecast area.

Cold front will push east through the region Wednesday night
and showers should end in far eastern zones after midnight.
Lows will range from 55 to 60. Clouds Thursday morning will
give way to partly sunny skies in the afternoon. Highs will
range from the lower 70s north to the lower 80s in the far
south.

Clouds will linger in the mountains Thursday night with the
remainder of the forecast area seeing partly cloudy skies.
Lows will bottom out in the mid to upper 50s.

Another cold front will approach from the north on Friday
but the majority of the day should be mostly sunny with
clouds moving into far northwest zones by evening. High
temperatures will range from the mid 70s north to the mid
80s south.

Cold front will cross the region Friday night with little
more than a few showers...mainly in northern zones.
Looking for clearing skies after midnight with lows in the
mid 50s to near 60.

A large area of high pressure will build in from the west
for the weekend...cresting over the region on Sunday. Temps
on Saturday will range from the lower 70s north to the
lower 80s south. Looking for slightly cooler weather on
Sunday with highs generally ranging through the 70s.

&&

.AVIATION /03Z MONDAY THROUGH FRIDAY/...
Short Term /Through Monday/...VFR. Localized IFR conditions are
likely between 08-12Z at KLEB and KHIE Monday morning in
stratus and fog. Otherwise clear with VFR conditions.

Long Term...
VFR Tuesday through Tuesday night. Areas of MVFR ceilings
developing on Wednesday afternoon in western zones. Widespread
MVFR/IFR ceilings Wednesday night and early Thursday...improving
to VFR in the afternoon. VFR Friday.

&&

.MARINE...
Short Term /Through Monday/...Onshore flow continues through
Monday with gradually building seas. Winds should stay below 25
kt but seas will reach 5 ft by Monday night into Tuesday morning
for the open waters south of Casco Bay as low pressure circles
the Gulf of Maine. Have issued a Small Craft for Hazardous Seas
during this time.

Long Term...
No problems noted.

&&

.GYX WATCHES/WARNINGS/ADVISORIES...
ME...None.
NH...None.
MARINE...Small Craft Advisory for hazardous seas from 11 PM Monday to 8
     AM EDT Tuesday for ANZ150-152-154.

&&

$$
SYNOPSIS...
NEAR TERM...Curtis
SHORT TERM...Hanes
LONG TERM...Sinsabaugh
AVIATION...
MARINE...


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