Sunrise 5:05 AM   Sunset 8:05 PM Moonrise 4:16 PM   Moonset 3:13 AM

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ANZ153 Casco Bay- 231 Am Edt Sun May 19 2024
Today - NE winds 5 to 10 kt. Seas 2 to 4 ft. Patchy fog early this morning. A chance of showers early this morning, then a slight chance of showers late this morning. Vsby 1 to 3 nm early this morning. Tonight - E winds 5 to 10 kt, becoming ne after midnight. Seas 2 to 4 ft. Mon - E winds around 5 kt, becoming S in the afternoon. Seas 2 to 4 ft. Patchy fog in the morning with vsby 1 to 3 nm. Mon night - S winds 5 to 10 kt. Seas 2 to 4 ft. Tue - S winds 5 to 10 kt. Seas 2 to 3 ft. Tue night - SW winds 5 to 10 kt. Seas 2 to 4 ft. Wed - SW winds 5 to 10 kt, becoming S 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Wed night - SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Thu - S winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. A chance of showers in the afternoon. Thu night - SW winds 10 to 15 kt with gusts up to 20 kt, becoming W 5 to 10 kt after midnight. Seas 2 to 3 ft. A chance of showers.

ANZ100 231 Am Edt Sun May 19 2024
Synopsis for stonington me to merrimack river ma out to 25 nm a slow moving area of low pressure passes east of the waters today high pressure than gradually builds across the waters into early next week. Conditions will be fairly tranquil over the waters for the first part of next week, before a cold front approaches late in the week.

FXUS61 KGYX 190625 AFDGYX

Area Forecast Discussion National Weather Service Gray ME 225 AM EDT Sun May 19 2024

SYNOPSIS
High pressure strengthens over the region and just offshore early next week with dry conditions and well above normal temperatures. Scattered showers return by late Wednesday into Thursday as a cold front approaches and then crosses the region.
An upper level trough will keep scattered showers over the region Friday. High pressure builds in from the north next weekend, bringing a return to cooler conditions.

NEAR TERM /UNTIL 6 PM THIS EVENING/
Latest radar imagery continues to show showers near the Midcoast region and offshore early this morning associated with low pressure that will slowly move east today. Plenty of low level moisture will continue across western Maine and New Hampshire however. The latest HRRR solution suggests the low clouds will continue today with the most breaks in the cloud shield over western New Hampshire today. The latest HRRR also brings a few widely scattered, light showers to portions of the region today.
However, it will be difficult to pinpoint precisely when and where these brief showers will pop up.

Sufficient cloud cover in the forecast to hold off on a cold water SPS today. Again, the best chance for any potential clearing would be western New Hampshire. This will need to be monitored today.

The morning fog and low cloud cover will limit temperatures to the 60s today for most locations. Some portions of the coastline may not make it out of the 50s, while locations along the Connecticut River Valley top out in the lower 70s potentially.

SHORT TERM /6 PM THIS EVENING THROUGH 6 PM MONDAY/
Patchy fog will return tonight with plenty of low level moisture still in place. Any light and widely scattered precipitation will end after sunset. Lows will drop back into the 40s.

High pressure will begin to slowly settle south of our region on Monday. Slightly drier air will begin to advect into our forecast area at that time. This will allow for more sunshine and temperatures climbing into the 70s away from the coast.
Right along the coast, expect temperatures to be limited to the 60s for high temperatures which will probably be reached in the late morning due to the development of an afternoon sea breeze.

LONG TERM /MONDAY NIGHT THROUGH SATURDAY/
Overview... Heat makes its season debut this week as a ridge builds across the Eastern US. Temps gradually rise through midweek, and then humidity begins to increase late in the week ahead of a cold front. The front likely arrives sometime late in the week or early next weekend, but uncertainty remains on the arrival timeframe of this slowing front in the presence of the ridge.

Details...

This week will be dominated by a warm and summer-like weather pattern. In the presence of anomalously low pressure across much of the US and the Central Atlantic, an area of high pressure develops off the Eastern Seaboard. This sets up an increasing southerly flow by the beginning of the week, which gradually turns more southwesterly by midweek. Mostly sunny skies are expected for the duration of this timeframe, but some isolated mountain showers are possible across the mountains early and mid week in the afternoon.

Temperatures gradually rise each day from Tuesday through Wednesday. 70s to low 80s are expected inland, while the coastline remains in the 60s with increasing southeasterly flow.
By Tuesday, a warmer airmass continues to stream in, with winds becoming more southerly. This sends most areas away from the immediate coastline into the 80s, with upper 80s expected across southern New Hampshire. The coastline likely holds onto onshore flow most of the day, with temps in the 60s along the MidCoast, to low 70s along the southern coastline. Wednesday looks to be the warmest day, with a south-southwesterly flow pushing the heat to the southern coastline. 80s are expected in most spots, with temps near 90 degrees across southern and western New Hampshire. The MidCoast will be a notable exception, with temps holding in the 60s with onshore flow continuing. Humidity will generally be low through this time frame, with dew points mainly in the 50s. This actually is dry enough to help shave a few degrees off the heat indices from the air temps.

By Thursday and Friday, humidity begins to increase as a cold front approaches and helps draw up some moisture from the south.
There remains uncertainty on the timing of this front amongst the ensembles. While the current forecast holds with NBM dew points, there is likely to be a period of time where dew points surge into the upper 60s ahead of the front late in the week.
Temps look to be trending downward during this time frame as more clouds and showers arrive. Showers and storms are expected to accompany the cold front when it arrives, but with the timing uncertainty POPs remain in the chance to low likely range during this timeframe. By next weekend, cooler air is expected to arrive as high pressure builds in from the north.

AVIATION /06Z SUNDAY THROUGH THURSDAY/
Short Term...A mix of MVFR and VFR ceilings will continue this morning with a few terminals dropping towards IFR. Fog will dissipate this morning, so conditions should become VFR today before more patchy fog develops Monday night. Winds remain light through the period with onshore winds due to sea breezes near the coast during the afternoon.

Long Term...Mainly VFR conditions are expected at most terminals from Monday through Thursday, but some coastal fog is possible at times at RKD Wednesday and Thursday. Showers and some thunderstorms bring brief restrictions on Thursday and Friday, especially to northern terminals. VFR conditions likely return by next weekend.

MARINE
Short Term...SCA seas look to continue through today as slow moving low pressure passes east of the waters. Seas look to calm below SCA thresholds tonight and Monday as high pressure begins to build over the waters. Northeasterly winds will diminish somewhat on Monday.

Long Term...High pressure builds across the Eastern Seaboard this week, bringing increasing south to southwesterly flow.
Areas of dense marine fog possible by midweek. SCA conditions are possible by Thursday with increasing southwesterly flow ahead of an approaching cold front.

GYX WATCHES/WARNINGS/ADVISORIES
ME...None.
NH...None.
MARINE...Small Craft Advisory until 8 PM EDT today for ANZ150- 152-154.

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Augusta
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