Office: GYX
FXUS61 KGYX 230504
AFDGYX
Area Forecast Discussion
National Weather Service Gray ME
1204 AM EST Sun Nov 23 2025
.SYNOPSIS...
High pressure moves offshore this morning. The next disturbance
crosses New England later today and this evening bringing
periods of snow showers, mainly in the mountains but some should
also be seen toward the coast as well. High pressure returns
Monday into Tuesday while an area of low pressure develops over
the Great Lakes. This low pressure system will slowly track into
SE Canada lifting a warm front into New England Tuesday night
followed by the attendant cold front crossing Thursday. Cooler
and breezy conditions then follow to close out the week.
&&
.NEAR TERM /THROUGH TODAY/...
High pressure ridging overhead this morning will move eastward
and be located well offshore by noon. A negatively-tilted short
wave trough will quickly approach from the west this afternoon
with associated low pressure surface reflection.
Clouds will quickly overspread the area from west to east this
morning with some light snow or snow showers moving across the
CT River around noon. Enough moisture, forcing for ascent, and
instability should be present to allow for this light
precipitation to move eastward, especially across southern and
central zones on the nose of the short wave trough during the
afternoon and early early evening hours.
The precipitation may start as rain at lower elevations, but
that should be relatively brief. Not everyone will see snow, but
a quick coating is not out of the question where it does, even
at the coast by the time it starts getting dark. Temperatures
will drop well down into the 30s by late afternoon so slippery
spots are possible.
&&
.SHORT TERM /TONIGHT THROUGH MONDAY/...
Any precipitation associated with the short wave trough will
move offshore this evening. Thereafter, mountain snow showers
will be the main theme while coastal regions gradually clear out
well after midnight.
A fair weather day is expected on Monday with highs in the 40s
at lower elevations and 30s in mountain valleys. NW winds may
gust up to around 20 MPH.
&&
.LONG TERM /MONDAY NIGHT THROUGH SATURDAY/...
Overview: Dry weather is expected Monday night into Tuesday
afternoon as surface high pressure moves across the region
before exiting to our east by Tuesday evening. Precipitation
chances will then increase Tuesday evening into early Wednesday
as a broad trof arrives from the west. A cold front will then
cross on Wednesday night into Thursday with colder temperatures
and upslope snow expected behind this front.
Impacts: Depending on temperature profiles, a wintry mix of
precipitation is possible Tuesday night into early Wednesday
morning across portions of the foothills and points north.
Forecast Details: Surface high pressure will begin to exit to
our east on Monday night with increasing clouds from west to
east as they ride along the H5 ridge axis. It will otherwise be
a cold but dry night with overnight low temperatures into the
20s.
Tuesday looks to feature mostly cloudy skies as high pressure
moves across the Gulf of ME ahead of a trof axis that will be
approaching from the west. Much of the daytime should remain dry
though with highs mostly into the 40s. Precipitation will then
overspread the region on Tuesday evening and night before ending
by around daybreak on Wednesday in most locations. It is
possible that this could begin as some snow across portions of
the foothills and points north before transitioning to rain
overnight on Tuesday night. During this transition, a brief
wintry mix is possible which could result in locally slippery
travel. Low temperatures will range from the 30s across the
interior with 40s along the coast and in southern NH.
Rain should end early Wednesday but skies will remain mainly
cloudy with high temperatures into the 40s and 50s. A cold front
then will likely cross Wednesday night, bringing scattered rain
and snow showers with low temperatures primarily into the 30s.
Temperatures are then likely to cool to near or a little below
avg through the remainder of the week and upcoming weekend with
upslope snow across the mountains and towards the Canadian
Border.
&&
.AVIATION /02Z SUNDAY THROUGH THURSDAY/...
Short Term...A period of light snow or snow showers are
expected this afternoon and early evening which may bring
conditions down to MVFR at times, especially across western NH.
A return to VFR is expected tonight downwind of the mountains,
with VFR conditions continuing through Monday.
Long Term...VFR conditions expected Monday night through 00Z
Wednesday. Restrictions are then likely Tuesday night into
Wednesday morning as -RA arrives along with lower ceilings.
Conditions should improve later Wednesday with mainly VFR
conditions through Thursday. Winds will largely remain out of
the west at or below 20 kts.
&&
.MARINE...
Short Term...Conditions are expected to remain below SCA levels
today through Monday.
Long Term...SW wind gusts could approach 20 kts Tuesday
afternoon but otherwise winds and seas are expected to remain
below SCA levels through Wednesday before increasing out of the
W late Wednesday night into Thursday behind a cold front.
&&
.GYX WATCHES/WARNINGS/ADVISORIES...
ME...None.
NH...None.
MARINE...None.
&&
$$
NEAR TERM...Ekster
SHORT TERM...Cornwell/Ekster
LONG TERM...Tubbs
