Laconia, New Hampshire 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

288
FXUS61 KGYX 020555
AFDGYX

Area Forecast Discussion
National Weather Service Gray ME
1255 AM EST Mon Feb 2 2026

.WHAT HAS CHANGED...
The gale warning for Casco and western Penobscot Bay has been
cancelled and a small craft advisory has been issued in its
place.

The Coastal Flood Advisory has also been cancelled as the tide cycle
has already peaked. We will monitor trends and see if another may be
needed for this morning`s high tide.

&&

.KEY MESSAGES...
1. Minor coastal flooding remains possible during this morning`s
high tide cycle.

2. Cold temperatures are expected tonight due to strong
radiational cooling conditions.

3. Expect a slight cooling trend Wednesday through Friday before the
next push of arctic air arrives on Saturday. A few weak disturbances
will lead to some periodic light snow chances.

&&

.DISCUSSION...

KEY MESSAGE 1 DESCRIPTION...
High astronomical tides combined with between 1-2 ft of storm
surge from distant low pressure over the open North Atlantic may
bring total water levels to near minor flood stage during this
morning`s high tide cycle at around 11 AM. Increased wave action
may also result in some minor beach erosion.

KEY MESSAGE 2 DESCRIPTION...
Surface high pressure will move across the region tonight,
allowing for mainly clear skies and light winds. This combined
with the existing snowpack will allow for a cold night. Used MOS
guidance for overnight lows, which brings some interior northern
valleys down to around 20 below. Elsewhere, lows into the single
digits either side of zero are likely.

KEY MESSAGE 3 DESCRIPTION...
By Wednesday, we will transition into southwest flow aloft as a
weak shortwave/upper low approaches and surface high pressure slides
out. The upper low will gradually track from just north of Ottawa
early Wednesday morning to the crown of Maine and vicinity by the
evening. Some isolated to scattered snow showers will be possible as
the disturbance moves through, especially across the mountains and
vicinity.

Two more waves will quickly move through on Thursday and Friday
with persistent troughing in place across the region through the end
of the week. Any snow showers on Thursday will likely be confined to
the mountains and vicinity but the Friday wave looks to be a bit
stronger and could lead to our next widespread light snow.
Currently, the NBM is suggesting widespread low to medium chances
for light snow across much of New Hampshire and western Maine,
potentially hanging on through the weekend.

High temperatures on Wednesday will generally be around normal for
this time of year outside of the mountains. Readings will mainly be
in the lower 20s to lower 30s but some teens are likely in the
mountains. Then as persistent troughing sets in, we cool down
slightly on Thursday and Friday with forecast highs maxing out in
the mid to upper 20s. Confidence then continues to increase that the
next push of arctic air will settle back in through at least
the rest of the weekend.

&&

.AVIATION /06Z MONDAY THROUGH FRIDAY/...
Through 06Z Tuesday...VFR prevails through tonight with no
significant wind gusts or wind shear expected.

Outlook:

Tuesday - Tuesday night: VFR Expected with light and variable
winds.

Wednesday - Wednesday night: MVFR possible north, VFR more likely
elsewhere. Snow showers possible.

Thursday - Friday: VFR expected south, MVFR possible north.

Friday night - Saturday: MVFR and snow showers possible.

&&

.MARINE...

Northerly winds will continue to diminish through today but seas
will remain elevated outside of the bays through Tuesday
morning, likely necessitating a small craft advisory.

High pressure extends across the waters for much of the
remainder of the week, with the next cold front likely on
Friday.

&&

.GYX WATCHES/WARNINGS/ADVISORIES...
MARINE...Gale Warning until 7 AM EST Monday for ANZ150-152-154.
     Small Craft Advisory until 7 AM EST Monday for ANZ151-153.

&&

$$

DISCUSSION...Tubbs/Hargrove