Monday, July6, 2020
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Marine Weather and Tides
Ipswich, MA

Version 3.4
NOTICE
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.

Sunrise 5:11AMSunset 8:25PM Monday July 6, 2020 4:00 PM EDT (20:00 UTC) Moonrise 9:55PMMoonset 6:24AM 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- 116 Pm Edt Mon Jul 6 2020
This afternoon..NE winds 5 to 10 kt. Seas 2 to 3 ft.
Tonight..SE winds 5 to 10 kt, becoming S after midnight. Seas 2 to 3 ft.
Tue..SE winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 4 ft.
Tue night..S winds 5 to 10 kt. Seas 2 to 4 ft. A chance of showers.
Wed and Wed night..SW winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers. Vsby 1 to 3 nm.
Thu..S winds 5 to 10 kt. Seas 2 to 3 ft.
Thu night..S winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers.
Fri..S winds 5 to 10 kt. Seas 2 to 3 ft.
Fri night..S winds 5 to 10 kt with gusts up to 20 kt. Seas 3 to 5 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 116 Pm Edt Mon Jul 6 2020
Synopsis for massachusetts and rhode island coastal waters.. A quasi-stationary front sits south of southern new england on Monday. The along the front an chance for a shower or Thunderstorm are possible. High pressure brief returns for Tuesday, then a warm front lifts from southwest to northeast on Wednesday.
Outlook.. An area of high pressure returns for the second half of the week, this allows for fair conditions. We are watching next weekend for an area of low pressure to move north along the eastern seaboard. For information on possible hazardous weather beyond the 24-36 hour forecast period, please visit www.weather.gov/boston and follow the current hazards link above the map on the left.


7 Day Forecast for Marine Location Near Ipswich, MA
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location: 42.68, -70.83     debug


Area Discussion for - Boston, MA
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FXUS61 KBOX 061856 AFDBOX

Area Forecast Discussion National Weather Service Boston/Norton MA 256 PM EDT Mon Jul 6 2020

SYNOPSIS. A cold front south of New England will stall across the waters. While a few thunderstorms are possible across northern Connecticut today, most areas should trend dry and cooler than normal with onshore flow. The cold front returns back northeast as a warm front on Tuesday, with considerable cloudiness and cooler temperatures for Tuesday. Very warm, very humid conditions move in for the late week. Showers/thunderstorms will be possible each day with some heavy downpours.

NEAR TERM /UNTIL 6 AM TUESDAY MORNING/. 235 PM Update .

Cooler northeast maritime flow across eastern MA with temperatures only in the 70s despite low clouds giving way to breaks of sunshine. Clouds will continue to erode thanks to strong July sun, thus expecting increasing sunshine remainder of the afternoon across Cape Cod and the Islands. Maritime airmass warms dramatically westward with temps approaching 90 across CT into western MA. Still somewhat humid with dew pts in the low to mid 60s. These warm temps combining with modest dew pt resulting increasing CU field with satellite showing an enhancement across the higher terrain of the east slopes of the Berks including the Worcester Hills into eastern CT.

Surface boundary well to the south across NJ, but despite CT being on the relatively cool side of this boundary temps 85-90 along with dew pts in the low 60s will yield MLCAPEs of 500-1000 j/kg. Forcing for ascent is weak but Hi Res guidance suggest as CT seabreeze boundary continues to drift northward it may become a focus for scattered showers/thunderstorms. Given marginal instability, weak forcing for ascent and the lack of wind aloft not expecting any thunderstorms to become severe. In addition, strong convection over NJ will likely preclude better instability from being advected north, providing additional support for non-severe storms in CT.

Otherwise pleasant weather by July standards with improving conditions across Cape Cod and Islands.

SHORT TERM /6 AM TUESDAY MORNING THROUGH 6 PM TUESDAY/. Tonight:

The warm/stationary front moves little from its daytime position over southern CT tonight. Model guidance does advance showers a little further northward, possibly even a rumble or two of what would be elevated thunder on the northern side of the boundary into western and central MA. Coverage of showers varies, but would not likely be a washout in any one area. Meanwhile further offshore, high pressure will allow more of an east-southeast/southeast flow to take hold across most of Southern New England. It's expected that low clouds from this morning, expected to have advanced offshore, will once again return back northwestward. These trends are reflected by the higher-res models and the HREF. The possibility for fog as the lower clouds roll in could be possible as well. Lows should reach the low to mid 60s.

Tuesday:

Tuesday has the look of a persistence type forecast. Considerable cloudiness from the overnight likely hanging tough throughout the bulk of the day, with the nearby warm frontal boundary making some modest northeast inroads into more of interior Southern New England. Thermo profiles look more stable than today, however, so thinking any thunderstorms would be more garden variety and better chances mainly west of ORH/PVD. I sided cloud cover and temperatures more pessimistically towards more overcast and temperatures on the lower side of guidance. Though the 925-850 mb temps progged would argue for much higher, limited heating resulted in keeping highs only in the 70s.

LONG TERM /TUESDAY NIGHT THROUGH SUNDAY/. Big Picture .

Zonal upper flow is featured through most of the week. Closed upper low developing off the Carolinas midweek moves up the coast by Friday or Saturday.

Contours at 500-mb will be above normal through the week, but may drop back to near-normal levels Saturday and Sunday. Expect above- normal temperatures through Thursday, then near normal Friday through Sunday.

Model mass fields are similar through Thursday. GFS moves low pressure up the coast crossing New England Friday, while ECMWF moves that low pressure up the coast Saturday. Confidence is moderate-high Wednesday-Thursday, but then low confidence for Friday through Sunday.

Daily details .

Tuesday night through Thursday .

Warm front over NY/PA moves east through New England Tuesday night. Scattered showers/thunder in the lift generated by this warm front. Dew points rise through the 60s overnight as the more humid air trailing the front moves into Srn New England. The temp/dew pt spread will be near zero in many spots, which may form areas of fog. Min temps expected in the mid 60s to low 70s.

Wednesday and Thursday will feature high humidity with dew points near 70. Morning fog gives way to sunshine. Daytime heating will generate CAPE of 1000-2000 J/Kg, with LI values around -3 to -5. PW values will be 1.5 to 2.0 inches each day. This will generate scattered showers/thunderstorms each afternoon/evening, with the high PW values suggesting local downpours. Temps aloft will support max sfc temps in the mid 80s to low 90s. Dew points will support min temps in the mid 60s to low 70s.

Friday-Saturday .

As noted above, two models show differing results for the coastal low forming off the Carolinas. The GFS immediately takes it up the coast, bringing showers/thunder to Srn New England Friday. The ECMWF brings the storm up the coast a little slower, bringing showers/thunder to Srn New England Saturday. Not really a clear favorite at this time, so the forecast goes in-between with showers/thunder moving in Friday night and lingering through Saturday. The very moist southerly/southeast flow draws PW values of 2 inches to 2 5 inches. which suggests showers may be better thought of as downpours.

Sunday .

The coastal low moves off to the northeast into the Maritimes. Upper trough lingers over the Great Lakes. Upper jet of 75 kt coming around the trough swings up past Srn New England, with the forecast area under the left exit region of that jet. This will support lift over the region, and with sufficient instability in place . CAPEs will reach 1000-2000 J/Kg . to generate scattered showers/thunder Sunday midday/afternoon.

AVIATION /19Z MONDAY THROUGH SATURDAY/. Forecaster Confidence Levels .

Low - less than 30 percent. Moderate - 30 to 60 percent. High - greater than 60 percent.

1830z update .

Thru 00z . moderate to high confidence. MVFR cigs over Cape Cod and Islands continue to slowly erode and lift and should be marginal MVFR/VFR by 21z. Isolated MVFR possible in CT as isolated -SHRA/-TSRA develops after 20z. Otherwise VFR with light NE winds except up to 20 kt Cape Cod and Islands.

Tonight . moderate confidence. VFR to start the evening other than isolated MVFR in -SHRA/-TSRA in CT. This activity will weaken into decaying showers and enter western-central MA and possibly into RI later this evening. The trend should be toward MVFR as the night progresses. Light E-SE winds.

Tuesday . moderate confidence. Mix of MVFR/VFR but mainly dry weather. Isolated shower possible western MA into CT during the afternoon. Light SE winds.

Tuesday night . moderate confidence. VFR/MVFR trending toward MVFR/IFR as scattered showers overspread the region from west to east. Isolated thunder possible. SE winds continue.

KBOS Terminal . high confidence in TAF thru this evening. VFR and onshore flow.

KBDL Terminal . Moderate confidence in TAF. Possible VCTS/TSRA after 20z. Dry after 00z-02z.

Outlook /Tuesday Night through Friday/ .

Wednesday: Mainly VFR, with areas MVFR possible. Chance SHRA, slight chance TSRA.

Wednesday Night: Mainly VFR, with local IFR possible. Slight chance SHRA, patchy BR.

Thursday: Mainly VFR, with areas MVFR possible. Chance SHRA, slight chance TSRA.

Thursday Night: Mainly VFR, with local IFR possible. Slight chance SHRA, isolated TSRA, patchy BR.

Friday: Mainly VFR, with areas MVFR possible. Slight chance SHRA, isolated TSRA.

MARINE. Today through Tuesday: High confidence.

Winds/seas to remain below small craft advisory levels. Southeast winds on our northeastern waters on Tuesday may get marginally close to those levels at around 20-22 kt. Seas mainly 2-4'.

Fog and low clouds will continue through most of the day today on eastern waters. Some breaks in lower clouds and fog on the southern waters could result in developing thunderstorms near Block Island Sound today.

Outlook /Tuesday Night through Friday/ .

Tuesday Night: Winds less than 25 kt. Seas locally approaching 5 ft. Chance of rain showers, slight chance of thunderstorms.

Wednesday: Winds less than 25 kt. Seas locally approaching 5 ft. Slight chance of rain showers, slight chance of thunderstorms.

Wednesday Night: Winds less than 25 kt. Slight chance of rain showers.

Thursday through Thursday Night: Winds less than 25 kt.

Friday: Winds less than 25 kt. Local rough seas. Slight chance of rain showers, isolated thunderstorms.

BOX WATCHES/WARNINGS/ADVISORIES. CT . None. MA . None. RI . None. MARINE . None.

SYNOPSIS . WTB/Loconto NEAR TERM . WTB/Loconto SHORT TERM . Nocera/Loconto LONG TERM . WTB AVIATION . WTB/Nocera MARINE . WTB/Nocera/Loconto


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
44029 - Buoy A0102 - Mass. Bay/Stellwagen 18 mi117 min E 7.8 G 9.7 63°F 3 ft1017.7 hPa
IOSN3 - Isle of Shoals, NH 23 mi61 min E 11 G 12 63°F 1019.4 hPa (+0.0)63°F
44013 - BOSTON 16 NM East of Boston, MA 25 mi71 min NE 12 G 12 64°F 65°F2 ft1018.6 hPa (+0.3)64°F
BHBM3 - 8443970 - Boston, MA 25 mi49 min 67°F 65°F1018.9 hPa
BGXN3 - Great Bay Reserve, NH 26 mi76 min ESE 4.1 73°F 1020 hPa64°F
44073 28 mi117 min E 9.7 G 12 66°F 65°F
CMLN3 28 mi177 min ESE 8.9 70°F
44098 - Jeffrey's Ledge, NH (160) 36 mi56 min 64°F3 ft
44030 - Buoy B0102 - Western Maine Shelf 41 mi117 min ESE 9.7 G 12 3 ft1026 hPa
WELM1 - 8419317 - Wells, ME 46 mi43 min 66°F 66°F1020.4 hPa
WEXM1 - Wells Reserve, ME 48 mi61 min SE 4.1 70°F 62°F
44018 - SE Cape Cod 30NM East of Nantucket, MA 49 mi71 min N 7.8 G 7.8 64°F 2 ft1019.7 hPa (+0.7)64°F

Wind History for Wells, ME
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Beverly, Beverly Municipal Airport, MA8 mi68 minE 610.00 miFair73°F61°F66%1019 hPa
Lawrence Municipal Airport, MA16 mi67 minE 810.00 miFair77°F61°F58%1019.9 hPa
Boston, Logan International Airport, MA23 mi67 minE 1210.00 miA Few Clouds69°F61°F76%1020 hPa

Link to 5 minute data for KBVY

Wind History from BVY (wind in knots)
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Last 24hrSE10SE9SE9SE4SE4N4N14
G18
CalmNW3N4CalmCalmCalmN7N6N4NE6NE8NE5NE9NE8NE7E6NE8
1 day agoSE11SE9SE8SE5SE6SE7SE6SE4SE4SE3SE3CalmSE3S3SW5CalmCalmW3Calm35SE6SE9SE9
2 days agoNE7NE8NE6N7NE7N7NE5N7N5N6N7N5N5N6N4N5N5N6N6W3SE7SE11SE9SE8

Tide / Current Tables for Plum Island Sound (south end), Massachusetts
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Plum Island Sound (south end)
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Mon -- 12:26 AM EDT     10.29 feet High Tide
Mon -- 05:12 AM EDT     Sunrise
Mon -- 06:23 AM EDT     Moonset
Mon -- 07:19 AM EDT     -0.83 feet Low Tide
Mon -- 01:09 PM EDT     8.87 feet High Tide
Mon -- 07:25 PM EDT     0.45 feet Low Tide
Mon -- 08:23 PM EDT     Sunset
Mon -- 09:54 PM EDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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10.210.1974.41.90.1-0.8-0.51.13.66.28.18.98.57.25.23.11.40.50.72.14.57.1

Tide / Current Tables for Newburyport (Merrimack River), Massachusetts Current
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Newburyport (Merrimack River)
Click for Map
Mon -- 01:16 AM EDT     -0.00 knots Slack
Mon -- 04:07 AM EDT     -1.47 knots Max Ebb
Mon -- 05:12 AM EDT     Sunrise
Mon -- 06:23 AM EDT     Moonset
Mon -- 07:45 AM EDT     0.00 knots Slack
Mon -- 11:23 AM EDT     1.82 knots Max Flood
Mon -- 01:51 PM EDT     -0.00 knots Slack
Mon -- 04:30 PM EDT     -1.24 knots Max Ebb
Mon -- 08:02 PM EDT     0.00 knots Slack
Mon -- 08:24 PM EDT     Sunset
Mon -- 09:54 PM EDT     Moonrise
Mon -- 11:44 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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1.30.3-0.7-1.3-1.5-1.4-1.3-0.70.20.91.41.81.70.8-0.1-0.9-1.2-1.2-1.2-0.9-00.81.21.6

Weather Map
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wmap_A
GEOS Local Image of Northeast    EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Boston, MA (16,3,4,5)
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Ground Weather Radar Station Boston, MA
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Disclaimer:
The information on this web site has not been checked for accuracy. It is for entertainment purposes only and should be independently verified before using for any other reason. There are five sources. 1) Documents and manuals from a variety of sources. These have not been checked for accuracy and in many cases have not even been read by anyone associated with L-36.com. I have no idea of they are useful or accurate, I leave that to the reader. 2) Articles others have written and submitted. If you have questions on these, please contact the author. 3) Articles that represent my personal opinions. These are intended to promote thought and for entertainment. These are not intended to be fact, they are my opinions. 4) Small programs that generate result presented on a web page. Like any computer program, these may and in some cases do have errors. Almost all of these also make simplifying assumptions so they are not totally accurate even if there are no errors. Please verify all results. 5) Weather information is from numerous of sources and is presented automatically. It is not checked for accuracy either by anyone at L-36.com or by the source which is typically the US Government. See the NOAA web site for their disclaimer. Finally, tide and current data on this site is from 2007 and 2008 data bases, which may contain even older data. Changes in harbors due to building or dredging change tides and currents and for that reason many of the locations presented are no longer supported by newer data bases. For example, there is very little tidal current data in newer data bases so current data is likely wrong to some extent. This data is NOT FOR NAVIGATION. See the XTide disclaimer for details. In addition, tide and current are influenced by storms, river flow, and other factors beyond the ability of any predictive program.