Sunday River

000
FXUS61 KGYX 010002
AFDGYX

Area Forecast Discussion
National Weather Service Gray ME
802 PM EDT Sat Oct 31 2026

.WHAT HAS CHANGED...
Minor update to the Aviation section for the 00Z TAFs.

&&

.KEY MESSAGES...
1. High pressure continues to dominate the weather through at 
least the middle of the upcoming week bringing above normal 
temperatures. Expect mainly dry conditions and no significant 
weather impacts.

&&

.DISCUSSION...
KEY MESSAGE 1 DESCRIPTION...
No tricks with tonight's forecast! High pressure builds back 
into the area with some shortwave energy bringing just enough 
passing cloud cover to increase the Halloween vibes. Ghosts and 
ghouls will want a jacket tonight as temperatures start the 
evening in the low to mid 40s north, and in the upper 40s to low
50s south, but they will be quickly dropping into the 30s by 
the time the candy bowls run dry. Strong radiational cooling 
continues through the night with the first morning of November 
starting out in the upper teens to mid-20s.

Temperatures rebound quickly on Sunday as high pressure slides 
by to our south and starting up a warmer southwesterly flow. 
Clear skies should allow temperatures to mix into the low to mid
50s in the north, and into the upper 50s to near 60F in the 
south. This flow will raise dewpoints as well making for a 
comparatively mild night in the upper 30s for most Sunday night.
High pressure slowly continues eastward on Monday continuing 
warm and dry conditions for much of the area, but low pressure 
passing to our north along with shortwave troughing aloft may 
bring some upslope showers to the higher terrain. Otherwise, 
daytime temperatures climb into the low to mid 60s for the 
foothills, with upper 60s to near 70F in the south. Temperatures
are slightly cooler Tuesday as a weak backdoor cold front sinks
southward. This front then lifts back north as a warm front and
may result in a few showers Tuesday night into Wednesday 
morning as it does. Above normal temperatures look to continue 
through the remainder of the upcoming work week as ridging aloft
remains firm.

The forecast going into late week remains very low confidence 
as global models have yet to come to any kind of consensus as to
what might occur as troughing approaches the Eastern Seaboard. 
Ensembles have a fair signal for rain in this time frame, but 
there has been no clear trend as fronts and systems continue to 
bounce around. The NBM was ready to go ahead and throw out 
likely PoPs already, but I am not so confident and made sure 
those were pulled back. It is certainly the window to watch 
right now, but that is all that can be said at this point.

&&

.AVIATION /00Z SUNDAY THROUGH THURSDAY/...
Through Sunday: VFR expected with light and variable winds.

Outlook... 
Sunday night-Monday night: Mainly VFR conditions with upslope 
showers around the mountains.

Tuesday-Tuesday night: MVFR ceilings possible, especially in 
the mountains. More widespread showers possible.

Wednesday-Thursday: VFR conditions expected.

&&

.MARINE...
Sub-SCA conditions look to prevail through at least the middle 
of the upcoming week as high pressure settles over the waters. 
SCA conditions are going to be possible late week, but there is 
low confidence on the time frame.

&&

.GYX WATCHES/WARNINGS/ADVISORIES...
ME...None.
NH...None.
MARINE...None.

&&

$$

DISCUSSION...Baron
AVIATION...Schroeter