Sunrise 5:42 AM   Sunset 7:39 PM Moonrise 9:52 PM   Moonset 6:16 AM

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ANZ154 Coastal Waters From Cape Elizabeth, Me To Merrimack River, Ma Out 25 Nm- 248 Am Edt Thu Apr 25 2024
.small craft advisory in effect until 8 am edt this morning - .
Today - N winds 10 to 15 kt with gusts up to 25 kt, becoming nw 5 to 10 kt with gusts up to 20 kt late this morning, then becoming sw early this afternoon, becoming S 10 to 15 kt with gusts up to 20 kt late. Seas 4 to 6 ft, subsiding to 3 to 4 ft this afternoon. Wave detail: E 4 ft at 10 seconds and N 2 ft at 4 seconds, becoming E 4 ft at 9 seconds. Tonight - S winds 10 to 15 kt with gusts up to 20 kt, becoming nw 5 to 10 kt after midnight. Seas 2 to 3 ft. Wave detail: E 3 ft at 8 seconds and S 2 ft at 4 seconds.Fri - N winds 5 to 10 kt, becoming S in the afternoon. Seas around 2 ft. Wave detail: ne 2 ft at 8 seconds. Fri night - SW winds 5 to 10 kt. Seas around 2 ft. Wave detail: se 2 ft at 8 seconds. Sat - W winds 5 to 10 kt, becoming S with gusts up to 20 kt in the afternoon. Seas around 2 ft. Wave detail: S 2 ft at 4 seconds. Sat night - S winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. Wave detail: S 3 ft at 4 seconds. Sun - S winds 10 to 15 kt. Seas 2 to 3 ft. Sun night - S winds around 10 kt, becoming W after midnight. Seas 2 to 3 ft. Mon - NE winds 5 to 10 kt, becoming E in the afternoon. Seas 2 to 3 ft. Mon night - SE winds 5 to 10 kt. Seas 2 to 4 ft.

ANZ100 248 Am Edt Thu Apr 25 2024
Synopsis for stonington me to merrimack river ma out to 25 nm high pressure builds over the waters today through Saturday west to northwesterly winds prevail early today before becoming more southerly this afternoon with developing onshore flow. Winds become light and variable tonight before westerly winds return early Friday before onshore flow once again develops by the afternoon.

FXUS61 KGYX 250631 AFDGYX

Area Forecast Discussion National Weather Service Gray ME 231 AM EDT Thu Apr 25 2024

SYNOPSIS
Dry high pressure moves into and across the region today 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 for most areas except possibly the coastal plain with scattered showers.

NEAR TERM /UNTIL 6 PM THIS EVENING/
Nighttime microphysics satellite imagery early this morning shows clear skies across the region. West-northwesterly winds remain gusty in most locations with some gusts still between 25-30 mph. Breezy conditions will persist through daybreak in most locations, although a few valley spots could briefly decouple. Current temperatures are primarily into the 20s but a few lower 30 degree readings persist over southern NH and coastal western ME. A few additional degrees of cooling can be expected through daybreak.

Surface high pressure will remain over the region today but a h5 trough axis will keep temperatures aloft on the cool side. This will result in mainly sunny skies and low afternoon relative humidity as we mix into a very dry airmass aloft. Afternoon relative humidity will fall into the middle teens to 20s percent range in most areas, lowest south of the mountains and away from the immediate coastline. West-northwesterly winds will also persist at between 10-15 mph, gusting to around 25 mph at times.
This combined with the low relative humidity could cause increased fire weather concerns. Latest hi-res guidance continues to indicate the development of onshore flow along the coast by mid-afternoon, which will allow RH to increase over coastal locations. Given the very dry airmass and abundant sunshine, went on the warm side of guidance for afternoon high temperatures. This places readings into the middle to upper 50s for many areas south of the mountains and away from the immediate coast.

SHORT TERM /6 PM THIS EVENING THROUGH 6 PM FRIDAY/
Mainly clear skies will persist tonight with winds quickly decreasing this evening with the loss of daytime heating/mixing.
This will set the stage for likely excellent radiational cooling conditions despite the relatively short nights of late April. As a result, used MOS guidance for overnight lows and pushed down the normally colder valleys down a few additional degrees. This places lows into the teens across the normally colder interior valley locations with 20s in most other locations.

Sunny skies and dry conditions will continue on Friday with h850 temperatures warming by around 5C. This combined with deep afternoon mixing will allow for warmer high temperatures into the upper 50s to middle 60s south of the mountains, warmest in southern NH. Relative humidity will once again fall into the teens to 20s percent range during the afternoon hours. Surface westerly winds will be weaker as compared to today and this will likely allow for an earlier start to the seabreeze and it will likely penetrate further inland with increasing relative humidity behind it.

LONG TERM /FRIDAY NIGHT THROUGH WEDNESDAY/
High pressure will remain anchored over northern New England as we begin the long term portion of the forecast. With clear skies, light winds and low dew points, expected a large diurnal curve with lows dropping below freezing in all areas with 20s in the north and lower 30s in the south.

More sunshine is expected on Saturday as the large ridge of high pressure begins to slip off the Northeast coastline. A southwesterly flow will develop by late in the day and will allow temperatures to climb through the 60s.

00Z model runs remain in relatively good agreement allowing a warm front to approach the region from the west Saturday night.
This will allow for a few showers to enter the region, mainly over northern and western areas. Scattered showers will continue on Sunday with readings in the 60s in most areas. The exception will be coastal areas where temperatures will be in the 50s.

Temperatures will peak early next week. H8 temperatures near +12C and some sunshine will allow temperatures to reach the 70s over southern New Hampshire and 60s over interior Maine. Very cold water temperatures in the Gulf of Maine will allow for chilly temperatures will onshore winds and readings in the 50s.
A nearly stationary from will allow for a few more scattered showers across the region.

Temperatures will begin to cool off by midweek next week with plenty of cloud cover and some cold air advection.

AVIATION /05Z THURSDAY THROUGH MONDAY/
Short Term...VFR conditions prevail today through at least Friday. West-northwesterly winds will continue today with gusts up to around 25 kts before becoming light and variable tonight.
A seabreeze will develop between 18-20Z today with winds becoming southerly at KPSM, KPWM, and KRKD. Westerly winds continue on Friday before another seabreeze develops after 16Z.
No LLWs is expected.

Long Term...VFR conditions continue Saturday with high pressure overhead. Scattered -SHRA arrives Saturday night through part of Sunday with possible lower ceilings although the any rainfall would likely be brief at one location. The same is expected for early next week although chances of rain will be lower.

MARINE
Short Term...West-northwesterly winds of 15-20 kts continue today before becoming light and variable tonight and then west at 10-15 kts on Friday. Seas will decrease below 5 ft by early this afternoon over the outer waters.

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

GYX WATCHES/WARNINGS/ADVISORIES
ME...None.
NH...None.
MARINE...Small Craft Advisory until 8 AM EDT this morning for ANZ150- 152-154.
Small Craft Advisory until 4 AM EDT early this morning for ANZ151-153.

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Dover Point
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Thu -- 02:00 AM EDT     6.78 feet High Tide
Thu -- 05:44 AM EDT     Sunrise
Thu -- 06:16 AM EDT     Moonset
Thu -- 08:13 AM EDT     0.09 feet Low Tide
Thu -- 02:33 PM EDT     6.18 feet High Tide
Thu -- 07:38 PM EDT     Sunset
Thu -- 08:17 PM EDT     0.79 feet Low Tide
Thu -- 09:51 PM EDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION

Dover Point, Piscataqua River, New Hampshire, Tide feet

Portsmouth Harbor Entrance
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Thu -- 02:11 AM EDT     -0.00 knots Slack
Thu -- 05:11 AM EDT     -1.92 knots Max Ebb
Thu -- 05:44 AM EDT     Sunrise
Thu -- 06:15 AM EDT     Moonset
Thu -- 09:09 AM EDT     0.00 knots Slack
Thu -- 11:02 AM EDT     1.06 knots Max Flood
Thu -- 02:30 PM EDT     -0.00 knots Slack
Thu -- 05:25 PM EDT     -1.67 knots Max Ebb
Thu -- 07:37 PM EDT     Sunset
Thu -- 09:05 PM EDT     0.00 knots Slack
Thu -- 09:50 PM EDT     Moonrise
Thu -- 11:17 PM EDT     1.31 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION

Portsmouth Harbor Entrance, New Hampshire Current, knots

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