Sunday, July25, 2021
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Marine Weather and Tides
Seabrook Beach, NH

Version 3.4
NOTICE
3/30/2021 -- ANZ330 has been split into ANZ331 and ANZ332. Click EDIT in Marine Forecast and select your new zone.
1/26/2021 -- The West Coast Satellite images havd been updated. They now use GEOS-17.
1/1/2021 -- The 7 day forecast are now working well. Thank you NOAA for your support.

Sunrise 5:26AMSunset 8:13PM Sunday July 25, 2021 12:38 PM EDT (16:38 UTC) Moonrise 9:43PMMoonset 6:50AM Illumination 98% Phase: Waning Gibbous; Moon at 16 days in cycle
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.
Marine Forecasts
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ANZ251 Massachusetts Bay And Ipswich Bay- 1027 Am Edt Sun Jul 25 2021
.small craft advisory in effect through this evening...
This afternoon..S winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft. Showers.
Tonight..SW winds 10 to 15 kt with gusts up to 25 kt, diminishing to 5 to 10 kt after midnight. Seas 2 to 3 ft. Patchy fog. A chance of showers. Vsby 1 to 3 nm.
Mon..SW winds 5 to 10 kt, becoming S in the afternoon. Seas around 2 ft.
Mon night..SW winds 5 to 10 kt, becoming W after midnight. Seas around 2 ft.
Tue..W winds 5 to 10 kt, becoming S in the afternoon. Seas around 2 ft. A chance of showers.
Tue night..W winds 5 to 10 kt, becoming nw after midnight. Seas around 2 ft. A chance of showers.
Wed..NE winds 5 to 10 kt. Seas around 2 ft. A chance of showers.
Wed night..S winds around 5 kt. Seas around 2 ft.
Thu and Thu night..SW winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height.
ANZ200 1027 Am Edt Sun Jul 25 2021
Synopsis for massachusetts and rhode island coastal waters.. A warm front will bring another chance of showers and Thunderstorms this afternoon and early Mon. Low pressure lingers through mid week with periodic shower and Thunderstorm chances each day. For additional information on possible hazardous weather for the week ahead, please visit www.weather.gov/boston/ehwo


7 Day Forecast for Marine Location Near Seabrook Beach, NH
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location: 42.83, -70.61     debug


Area Discussion for - Gray/Portland, ME
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FXUS61 KGYX 251630 AFDGYX

Area Forecast Discussion National Weather Service Gray ME 1230 PM EDT Sun Jul 25 2021

SYNOPSIS. A warm front pushes into the area this morning bringing a band of showers with some embedded thunder this morning into early afternoon. Behind the warm front humidity will increase with some thunderstorms possible later this afternoon and evening. Slow moving cold front crosses the area late tonight into Monday with additional fronts crossing the area this week.

NEAR TERM /UNTIL 6 PM THIS EVENING/. Noon - Clouds are just starting to break up along the CT river. West through VT mesoanalysis shows some destabilization with CAPE values up to 1000 J/kg. Will be closely monitoring for any convection to get going in the warm sector as it moves into our region.

930am update . Warm front and associated showers continue to track east through the CWA, and have adjusted PoPs to reflect the back edge now starting to clear the CT river valley. Winds remain somewhat gusty out of the south, with the wind shift to SW in the warm sector still well to our west in NY not expected until later today.

720 AM Update . The last few runs of the HRRR have shown a noticeable uptick in southerly winds associated with a 35 kt LLJ. Conditions are not quite favorable for mixing the bulk of these winds to the surface, but have slightly increased winds over the waters and near the coast centered around noon where coastal areas may see a couple hours of southerly gusts to 25 mph. The increase in winds over the waters has led to include Casco Bay in the Small Craft Advisory. Have also put in some areas of fog for the next couple of hours based on area webcams. Otherwise have made some minor adjustments to PoPs based on latest radar trends and mesoscale guidance.

ORIGINAL DISCUSSION .

Short wave will trek eastward across Quebec today with a surface warm front pressing into New Hampshire this morning. Latest radar mosaic shows a south to north band of showers moving across Vermont with this band spreading eastward through the CWA this morning. There have been a few instances of lightning along the back edge of this band towards the warm sector and with CAMs indicating some elevated instability have kept slight chances of thunder with this feature. Generally expecting a quarter to a half inch of rain with widespread showers tapering to scattered showers from west to east late this morning into the afternoon.

Early this afternoon the warm front is expected to have pushed through much of New Hampshire into western Maine with dewpoints climbing into the upper 60s behind the front. The 00Z CAM suite has slightly trended upward with instability this afternoon with the HREF mean CAPE of around 1000 to 1500 J/kg nosing towards the NH/ME border However. forcing will be limited as the short wave will be east of the area and the trailing cold front will be back over the eastern Great Lakes. There will be some decent shear across the north with 0-6 km bulk shear around 40 kts, so the current thinking is that if some storms can initiate over the higher terrain there will be an isolated chance for few strong storms, but overall severe threat is low. All in all, behind the warm frontal rain this morning and early afternoon there is a good chance areas south of mountains see some precipitation free periods this afternoon.

SHORT TERM /6 PM THIS EVENING THROUGH 6 PM MONDAY/. There will be plenty of low level moisture around tonight for patchy fog. Lows will range from the upper 50s north to mid 60s south.

Monday will be warm and humid to start with highs into the mid to upper 80s south of mountains and dewpoints in the mid to upper 60s. These temperature and dewpoints will allow for some decent CAPE to develop tomorrow afternoon, but again forcing for ascent will be limited as the slow moving cold front washes out across the area. Current thinking is areas south of the mountains will be mostly dry with scattered thunderstorms possible in the mountains.

LONG TERM /MONDAY NIGHT THROUGH SATURDAY/. Overview: Mean trofing continues over the region with at least a couple windows where passing S/WVs will increase coverage of convection. Temps continue to average near to below normal . especially after a warmer day Tue.

Impacts: No significant impacts anticipated at this time.

Forecast Details: Ahead of a stronger S/WV trof Tue temps will climb above normal for most areas for what may be the last time this week. There should be at least scattered convection with the surface trof sweeping across the area. At this time forecast soundings would suggest mainly high based convection . which could feature some gusty winds given the deep . dry sub-cloud layer. SREF guidance is bearish on severe chances compared to regional convective chances Sun and Mon . so I will just keep wording with general thunder for now.

A cool . refreshing air mass will settle over the area Wed . to be quickly followed up by another S/WV trof dropping out of Canada. Model guidance shows good support for lift with jet streak approaching . but I am not convinced that we will get enough air mass recovery for significant thunderstorm coverage. There is plenty of room for that timing to change over the coming days however.

AVIATION /18Z SUNDAY THROUGH FRIDAY/. Short Term . Fog and low cigs will bring LIFR to KRKD and KAUG early this morning and will briefly improve after daybreak. SHRA and lowering cigs will spread east across the area this morning into early afternoon bringing a period of MVFR and IFR conditions. Conditions may improve late this afternoon before fog develops tonight across much of the area. Mainly VFR is expected Monday outside brief restrictions in thunderstorms primarily across the mountains.

Long Term . Generally VFR conditions but periods of more widespread SHRA/TSRA will lead to brief MVFR or lower conditions. The best chances look to be Tue afternoon and again Thu afternoon. Some areas of FG may try and work into coastal Wrn ME Mon night/Tue morning . with locally IFR or lower conditions.

MARINE. Short Term . Southerly flow increases this morning with 25 kt gusts possible by late morning and seas to 5 ft this afternoon along the outer waters. Winds and seas come down tonight with areas of patchy fog. Conditions will remain below SCA thresholds on Monday.

Long Term . Winds and seas are expected to remain below SCA thresholds. Areas of fog will be possible ahead of an approaching trof Mon night.

GYX WATCHES/WARNINGS/ADVISORIES. ME . None. NH . None. MARINE . Small Craft Advisory until 11 PM EDT this evening for ANZ150- 152>154.

SYNOPSIS . NEAR TERM . Curtis SHORT TERM . Schroeter LONG TERM . Legro AVIATION . Legro/Schroeter MARINE . Legro/Schroeter


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
IOSN3 - Isle of Shoals, NH 9 mi39 min SW 16 G 17 66°F 1012.5 hPa (-0.5)66°F
CMLN3 17 mi155 min S 5.1 67°F
BGXN3 - Great Bay Reserve, NH 20 mi54 min SSW 4.1 68°F 1013 hPa68°F
44029 - Buoy A0102 - Mass. Bay/Stellwagen 21 mi95 min SSW 16 G 19 70°F 69°F2 ft1012.7 hPa
44098 - Jeffrey's Ledge, NH (160) 23 mi43 min 65°F4 ft
44030 - Buoy B0102 - Western Maine Shelf 26 mi95 min S 14 G 16 66°F 65°F3 ft1012.9 hPa
44013 - BOSTON 16 NM East of Boston, MA 34 mi29 min SSW 18 G 21 69°F1013.3 hPa
WELM1 - 8419317 - Wells, ME 34 mi51 min SSW 11 G 14 66°F 64°F1012.8 hPa
WEXM1 - Wells Reserve, ME 35 mi39 min S 5.1 67°F 65°F
BHBM3 - 8443970 - Boston, MA 40 mi51 min 70°F 1013 hPa

Wind History for Wells, ME
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Pease Air Force Base / Portsmouth, NH21 mi43 minS 83.00 miLight Rain Fog/Mist66°F63°F91%1013.4 hPa
Beverly, Beverly Municipal Airport, MA24 mi46 minSW 13 G 214.00 miLight Rain70°F65°F84%1012.2 hPa

Link to 5 minute data for KPSM

Wind History from PSM (wind in knots)
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Last 24hrSE5SE8E7SE7SE8SE8SE8SE6S3S3S6S4SE3S3S3S4S4S3S4S7S5S9S8
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1 day agoSE5S5E9S7SW4W8SW5CalmN5NW8W7NW3W5S3NW3W3NW3W3CalmNW5NE4N3N3SE7
2 days agoW8W4W4SE6S6W5W3W5W4W3W4NW3W3W3W3NW4NW3NW4W3NW4W3N3N5NW7

Tide / Current Tables for Gosport Harbor, Isles of Shoals, New Hampshire
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Gosport Harbor
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Sun -- 12:16 AM EDT     10.44 feet High Tide
Sun -- 05:26 AM EDT     Sunrise
Sun -- 06:39 AM EDT     -1.07 feet Low Tide
Sun -- 06:49 AM EDT     Moonset
Sun -- 12:58 PM EDT     9.06 feet High Tide
Sun -- 06:48 PM EDT     0.03 feet Low Tide
Sun -- 08:10 PM EDT     Sunset
Sun -- 09:43 PM EDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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10.410.18.663.10.7-0.8-10.12.24.778.59.18.46.74.320.40.10.92.85.37.8

Tide / Current Tables for Newburyport (Merrimack River), Massachusetts Current
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Newburyport (Merrimack River)
Click for Map
Sun -- 01:14 AM EDT     -0.00 knots Slack
Sun -- 04:00 AM EDT     -1.52 knots Max Ebb
Sun -- 05:28 AM EDT     Sunrise
Sun -- 06:51 AM EDT     Moonset
Sun -- 07:43 AM EDT     0.00 knots Slack
Sun -- 11:23 AM EDT     1.83 knots Max Flood
Sun -- 01:50 PM EDT     -0.00 knots Slack
Sun -- 04:28 PM EDT     -1.31 knots Max Ebb
Sun -- 08:03 PM EDT     0.00 knots Slack
Sun -- 08:11 PM EDT     Sunset
Sun -- 09:43 PM EDT     Moonrise
Sun -- 11:46 PM EDT     1.76 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.30.3-0.7-1.3-1.5-1.4-1.3-0.70.311.41.81.70.9-0.1-0.9-1.3-1.3-1.2-0.9-0.10.81.31.6

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NOTE: This section has been updated as of 1/26/2021. If the image you are expecting is not showing, please let me know. You may use the EDIT function to update your location.
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