Sunrise 5:37 AM   Sunset 7:36 PM Moonrise 8:38 PM   Moonset 5:42 AM

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ANZ151 Penobscot Bay- 1022 Am Edt Wed Apr 24 2024
.small craft advisory in effect from 6 pm edt this evening through late tonight - .
Rest of today - S winds 10 to 15 kt, becoming sw 5 to 10 kt late. Seas 2 to 3 ft. Wave detail: S 2 ft at 4 seconds. Scattered showers late this morning, then numerous showers this afternoon. Tonight - NW winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 4 ft. Wave detail: W 2 ft at 3 seconds. A chance of showers in the evening. Thu - NW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. Thu night - NW winds 5 to 10 kt. Seas around 2 ft.Fri - NW winds around 5 kt, becoming sw in the afternoon. Seas 1 foot or less, then around 2 ft in the afternoon.Fri night - SW winds 5 to 10 kt. Seas around 2 ft. Sat - W winds around 5 kt, becoming S in the afternoon. Seas around 2 ft. Sat night - SW winds around 10 kt. Seas 2 to 3 ft.Sun - S winds around 10 kt. Seas 2 to 3 ft. Sun night - S winds 5 to 10 kt. Seas 2 to 3 ft.

ANZ100 1022 Am Edt Wed Apr 24 2024
Synopsis for stonington me to merrimack river ma out to 25 nm low pressure will advance towards the coast today an associated cold front then passes over the waters during the late afternoon. High pressure builds in Thursday and Friday before shifting east of the waters over the weekend.

FXUS61 KGYX 241445 AFDGYX

Area Forecast Discussion National Weather Service Gray ME 1045 AM EDT Wed Apr 24 2024

SYNOPSIS
Low pressure moves into the region today bringing rain showers and perhaps a few snow flakes to the mountains. Dry high pressure then moves across the region Thursday through Saturday.
A warming trend can be expected over the weekend with chance of showers Saturday night or Sunday. Warmer weather is then expected early next week.

NEAR TERM /UNTIL 7 PM THIS EVENING/
1030am Update...Near term forecast looks okay this morning. As new data comes in, made some changes to afternoon, mainly for winds and afternoon shower coverage. Faint fineline in MRMS comp radar through Montreal this morning is bringing gusts to 35 mph. This is set to make its way south through the area along with passing cold front this afternoon. Upped wind gusts for a few hours this afternoon to align with this front passing.
Looking at HRRR probabilistic momentum transfer, gusts 25 to 35mph look most likely, but can't rule out some gusts around 40 before the sun sets. There will also be a brief window of instability ahead of the front that, once prompted by lifting, could develop deeper showers and possibility of a couple rumbles of thunder later in southern NH. CAPE values are slim, not much more than 200 j/kg, so will be conditional on any further surface heating through early afternoon.

630am Update... Have upped the pops this morning as some areas were reporting very light rain as of 10Z despite plenty of dry air initially in the latest soundings. Showers will continue through at least early this afternoon before drier and colder air arrives later in the day. Minor adjustments to temperatures, dew points and winds for the near term portion of the forecast.

Prev Disc...
A cold front will cross the region today with an upper level short wave crossing the region during the midday hours. Models continue to be in relatively good agreement developing a weak area of low pressure along this system.
Showers will cross western Maine and New Hampshire with the highest pops over the northern mountains.

The precipitation may end as a brief period of snow across the higher terrain this afternoon. Little accumulation is expected.
Strong cold air advection and an increasing gradient will allow for gusty winds towards the later portion of today. Afternoon highs will generally be in the 40s north to the 50s in the south.

SHORT TERM /7 PM THIS EVENING THROUGH 6 PM THURSDAY/
Gusty winds expected tonight with GYX probabilistic data plots suggesting wind gusts in excess of 25 kts. Clearing will continue as a large ridge of high pressure builds into the region from Canada. It will be chilly with lows in the upper teens north to the 20s south.

Much less in the way of wind is expected for Thursday as the ridge builds over northern New England. Highs will once again reach the 40s in the north to the lower to mid 50s across the south under mostly sunny conditions.

LONG TERM /THURSDAY NIGHT THROUGH TUESDAY/
Overview: A large dome of high pressure builds over the eastern CONUS Thursday through Saturday. This will result in warm days and cool nights under partly to mostly sunny skies. High pressure then moves to our east by early Sunday as a weak frontal boundary arrives from the west, resulting in an increased chance for scattered showers Saturday night through part of Sunday. Showery conditions at times along with warm temperatures look to continue through early to mid next week.

Impacts: Low afternoon RH is likely on Friday with values falling into the teens to 20s percent range. This will be in combination with west-northwesterly wind gusts up to around 25 mph, which could result in increased fire weather conditions.

Forecast Details: Surface high pressure will build over the eastern CONUS on Thursday through Saturday, resulting in warm days and cool nights. Thursday night will feature mainly clear skies along with light winds, which will result in good radiational cooling conditions. Therefore blended in raw MOS guidance into the overnight forecast, which brings some interior valleys down into the teens to near 20 degrees with middle 20s to near 30 degrees elsewhere. Friday will feature partly to mostly sunny skies with warm afternoon temperatures into the 50s to middle 60s from north to south. Westerly winds up to around 20-25 mph combined with afternoon RH into the teens to 20s percent range could result in increased fire weather concerns but it will otherwise be a nice day.

Another night of radiational cooling is then likely Friday night under mostly clear skies and light winds. Lows will range from the 20s to lower 30s. Light winds and warm temperatures will prevail on Saturday with highs into the 60s in most locations.
The weak flow will likely result in a sea breeze though, which would keep the coast cooler given current SSTs. Clouds will increase by Saturday night with perhaps a few scattered showers by dawn as a front approaches from the west. Scattered showers and mainly cloudy skies are then likely on Sunday as the frontal boundary remains near the region. It does not look like a washout though and latest ensemble guidance suggests light rainfall amounts. Despite the clouds it will remain warm with perhaps a few 70 degree readings over southern NH depending on cloud cover.

Depending on the placement of another frontal boundary, some showery weather will remain possible at times through the first half of next week but rainfall looks to remain on the light side with temperatures remaining mild.

AVIATION /15Z WEDNESDAY THROUGH SUNDAY/
Short Term...Conditions lowering to MVFR today in showers with areas of IFR possible in the precipitation and lowered ceilings.
Conditions improve tonight to VFR and continue on Thursday however some MVFR conditions may linger in the mountains.

Long Term...VFR prevails Thursday night through Saturday with high pressure overhead. Scattered -SHRA arrives Saturday night through part of Sunday with possible lower ceilings.

MARINE
Short Term...SCAs have been issued as winds will be increasing over the coastal waters beginning this afternoon. A few gusts may approach gales for a short period this evening.

Long Term...Winds and seas to remain below thresholds hazardous to small crafts as high pressure builds over the waters.

GYX WATCHES/WARNINGS/ADVISORIES
ME...None.
NH...None.
MARINE...Small Craft Advisory until 8 AM EDT Thursday for ANZ150-152- 154.
Small Craft Advisory from 6 PM this evening to 4 AM EDT Thursday for ANZ151-153.

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Rockland
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Wed -- 05:41 AM EDT     Moonset
Wed -- 06:03 AM EDT     0.40 feet Low Tide
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Camden
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Wed -- 05:41 AM EDT     Moonset
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Wed -- 12:13 PM EDT     9.38 feet High Tide
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