Marine Weather and Tide Forecast for Kennebunkport, ME

NEAR TERM /UNTIL 6 AM SATURDAY MORNING/
645 PM Update... It will continue to be a dry Friday evening across the region for outdoor activities with just some scattered high altitude cirrus streaming overhead. The forecast remains on track with only minor adjustments made at this time.

Previously...
High pressure over southeast Canada has nosed into the area this afternoon allowing for cloud cover to erode from north to south. A wave of low pressure tracking along a stationary front south of New England will lead to an increase in clouds tonight.
Recent runs of hi res guidance show areas of light showers will develop after midnight mainly along and south of the White Mountains towards coastal Maine. A dry airmass to the north and weak forcing will lead to light rainfall amounts with a downward trend in QPF in the 12Z model suite. Lows tonight will range from the 40s north to the 50s across the south.

SHORT TERM /6 AM SATURDAY MORNING THROUGH SATURDAY NIGHT/
The best chances for showers will be Saturday morning across southern NH and coastal SW Maine while northern areas will see clearing skies. Showers will push south and offshore through the morning with Saturday afternoon looking mostly dry. Cloud cover will erode north to south through the day while southern areas likely remain mostly cloudy through the afternoon. Overall QPF will top out around a tenth to a quarter of an inch across southern NH with even lighter amounts as one goes north. Cloud cover and onshore flow will lead to southern areas being cooler than northern areas with highs here mainly in the low 60s. Areas north of the mountains, where skies remain mostly sunny, will see highs closer to 70 degrees.

Mostly dry conditions will prevail Saturday night with partly to mostly cloudy skies. Lows will mainly be in the 40s.

LONG TERM /SUNDAY THROUGH FRIDAY/
Overview...

Temperatures start to rebound on Sunday in the wake of Saturday's front. A warming trend continues through the rest of the work week. A low pressure system likely passes north of New England on Wednesday, bringing and increased chance for thunderstorms. A cold front approaches from the west late week, likely arriving Thursday night to Friday night with an increased chance of showers, followed by relatively cooler and drier conditions.

Details...

Seasonably cool conditions are likely on Sunday with more sunshine as high pressure passes through Atlantic Canada. The high brings mainly dry conditions early in the week. A southerly flow sets up late Monday as the high moves off to the east, with temps warming progressively through mid to late week and peaking on Thursday in the high 80s to possibly low 90s.

A weak area of low pressure likely passes north of New England on Wednesday. This brings an increased chance for showers and storms across the higher terrain and northern areas Wednesday afternoon. Isolated showers and storms are possible elsewhere in an increasingly humid airmass, but are likely to remain more localized as the more organized forcing passes to the north closer to the low.

Another low pressure system likely moves through the Great Lakes mid to late week, with an associated cold front approaching New England from the west during this timeframe.
Moisture continues to increase ahead of this front on Thursday, with dew points likely starting to push into the 70s. With the combination of rising temps and dew points, heat indices may approach the mid 90s by Thursday across southern locations.
Additionally, airmass showers and storms are likely again on Thursday, especially across the higher terrain.

The front likely passes through sometime in the late Thursday night to Friday night timeframe. Storms are expected with the front, but the timing of the frontal passage will be a determining factor in how widespread or organized these storms would be. Drier air returns behind the front by either Friday or Saturday, with seasonable temperatures looking more likely for early next weekend.

AVIATION /00Z SATURDAY THROUGH WEDNESDAY/
Short Term...Clouds thicken and lower tonight with -SHRA developing south of a line from KLEB to KAUG. Lowering cigs will likely bring some periods of MVFR from KLEB to KAUG after 06Z tonight through around 15Z Saturday morning. Conditions likely improve north to south Saturday afternoon with VFR likely through Saturday night.

Long Term...VFR likely prevails during the daytime from Sunday through midweek next week, with nighttime valley fog possible each night. Marine fog is possible at RKD by midweek as the airmass moistens. Chances for scattered afternoon showers and storms increase across interior terminals starting Wednesday and continue through late week. More widespread showers and storms are possible late Thursday or Friday.

MARINE
Short Term...Winds and seas remain below SCA thresholds tonight through Saturday night. A wave of low pressure tracking along a stationary front south of the waters with bring steady SE to E flow late tonight through Saturday with light showers over the waters Saturday morning.

Long Term...High pressure gradually moves eastward across the North Atlantic through midweek next week with generally fair conditions. A cold front approaches late in the week, with SCA conditions possible in southwesterly flow ahead of the front by late Wednesday.

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