NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION. Privacy and Cookie policy

ANZ153 Casco Bay- 728 Am Est Thu Dec 7 2023
Today..NW winds 5 to 10 kt. Seas around 2 ft this morning, then 1 foot or less.
Tonight..NW winds around 5 kt. Seas 1 foot or less.
Fri..NW winds around 5 kt. Seas 1 foot or less.
Fri night..W winds around 5 kt. Seas 1 foot or less.
Sat..SW winds around 5 kt, becoming S in the afternoon. Seas 1 foot or less.
Sat night..S winds 5 to 10 kt. Seas 1 foot or less, then around 2 ft after midnight.
Sun..S winds 5 to 10 kt, increasing to 15 to 20 kt with gusts up to 25 kt in the afternoon. Seas 2 to 3 ft. A chance of rain in the afternoon.
Sun night..S winds 25 to 30 kt with gusts up to 40 kt. Seas 4 to 6 ft. Rain.
Mon..SW winds 25 to 30 kt with gusts up to 40 kt. Seas 4 to 6 ft. Showers in the morning.
Mon night..W winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 6 ft.

ANZ100 728 Am Est Thu Dec 7 2023
Synopsis for stonington me to merrimack river ma out to 25 nm generally quiet weather is expected for the rest of the week as high pressure settles across the waters. A developing storm center impacts the waters Sunday night into Monday, with gale to storm force winds possible.

FXUS61 KGYX 071226 AFDGYX

Area Forecast Discussion National Weather Service Gray ME 726 AM EST Thu Dec 7 2023

SYNOPSIS
A drying and cooling trend continues today as high pressure builds across New England. Temperatures moderate late week and into the weekend as the high moves offshore. A strong low pressure system moves through the Northeast Sunday night and Monday, with wind and some rain impacts increasingly likely during this timeframe. High pressure returns toward the middle of next week.

NEAR TERM /UNTIL 6 PM THIS EVENING/
730 AM Update... Minor changes to reflect latest observational trends. A cold morning continues across the region with temperatures only gradually moderating through the day.

Previously...
Nighttime microphysics satellite imagery early this morning shows lingering stratus over the north and mountains along with some cirrus streaming overhead across western NH. Elsewhere, skies are mostly clear, which has allowed temperatures to once again fall into the single digits across portions of the interior with teens and low 20s along the coast and in southern NH. Temperatures will continue to cool through sunrise.

Surface high pressure will remain anchored over Western New England today as a weak area of low pressure travels along a stalled frontal boundary that will be draped across NY state and southwestern New England. Forcing for ascent will remain well to our southwest and given this and the very dry airmass that is in place, the only sensible weather impact from this system will be some increase in cloudiness (especially across western areas). It will otherwise be a dry day with high temperatures into the 20s to mid-30s from north to south.

SHORT TERM /6 PM THIS EVENING THROUGH 6 PM FRIDAY/
Mainly clear skies tonight combined with light winds and low dew points will set the stage for excellent radiational cooling, especially across locations that have snow on the ground. As a result, used MOS guidance for overnight lows, which brings northern locations below zero with single digits and low teens elsewhere.

Heights rise on Friday as shortwave upper level ridging moves in. This will provide another dry day with partly to mostly sunny skies and light winds. High temperatures will be a few degrees warmer with upper 20s/low 30s across the north/mtns and then middle/upper 30s further to the south and along the coast.

LONG TERM /FRIDAY NIGHT THROUGH WEDNESDAY/
Clouds will be on the increase Friday night as warm air advections begins aloft. By Saturday, a light southerly flow will develop late in the day as a ridge of high pressure shifts off the Eastern Seaboard. A weak cold air damming signature may keep temperatures in the 30s for highs across the interior, however expect southern areas to eventually climb into the 40s.

By Sunday, a significant moisture band will be situated to our west. This precipitation will slowly shift east Sunday afternoon, initially slow by a large ridge of high pressure off the coast. With warm air advection continuing, expect temperatures to climb into the 40s during the day, with perhaps some 50s over southern sections. Surface dew points will be on the increase as well, mainly climbing into the 30s and 40s ahead of a strong cold front approaching from the west.

Locally heavy rainfall and strong gusty southerly winds can be expected Sunday night. 00Z operational models and ensemble solutions bring relatively high probabilities of 34 Kt+ winds to the coastline by late Sunday night. The Euro was the most robust with the wind forecasts, but have since backed off somewhat. In any case, a strong southerly flow with a non- diurnal trend Sunday night will quickly back to the west behind a strong cold front Monday morning. There will be some snowmelt during this period before temperatures likely drop during the morning and afternoon hours. Drier conditions will more seasonable temperatures will follow for Tuesday and Wednesday.

We are not at the high portion of our astronomical tidal cycle during this upcoming event. Therefore, coastal inundation does not appear to be likely.

AVIATION /13Z THURSDAY THROUGH MONDAY/
Short Term...VFR conditions will continue through Friday along with light and variable winds. The only exception will be at KHIE and KLEB where MVFR ceilings will persist through this morning. No LLWS is expected.

Long Term...Mainly VFR conditions until ceilings lower in precipitation late Sunday into early Monday with IFR and LIFR conditions. A strong southerly gradient Sunday night will shift to the west on Monday. Thereafter, mainly VFR conditions expected early next week.

MARINE
Short Term...Winds and seas to remain below thresholds hazardous to small crafts. Freezing spray is possible through early this morning as well as late tonight through early Friday morning.

Long Term...Relatively quiet conditions expected before gale force winds potentially cross the waters late in the weekend into Monday. Large waves will build over the coastal waters. A wind shift to a strong westerly flow will follow with cold air advection Monday.

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

toggle option: (graph/table)

Hallowell
Click for Map
Thu -- 01:08 AM EST     Moonrise
Thu -- 05:08 AM EST     0.67 feet Low Tide
Thu -- 07:00 AM EST     Sunrise
Thu -- 10:22 AM EST     3.93 feet High Tide
Thu -- 01:05 PM EST     Moonset
Thu -- 04:00 PM EST     Sunset
Thu -- 05:41 PM EST     0.76 feet Low Tide
Thu -- 10:42 PM EST     3.79 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION

Hallowell, Kennebec River, Maine, Tide feet

Nehumkeag Island
Click for Map
Thu -- 01:08 AM EST     Moonrise
Thu -- 03:51 AM EST     0.83 feet Low Tide
Thu -- 07:00 AM EST     Sunrise
Thu -- 09:49 AM EST     4.85 feet High Tide
Thu -- 01:05 PM EST     Moonset
Thu -- 04:00 PM EST     Sunset
Thu -- 04:24 PM EST     0.94 feet Low Tide
Thu -- 10:09 PM EST     4.68 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION

Nehumkeag Island, Kennebec River, Maine, Tide feet

Full Color Weather Map

Link to Loop


Other links: GEOS-West     Contential US     Full GOES-East

Portland, ME,