Tuesday, March31, 2020
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Marine Weather and Tides
Marblehead, 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 6:24AMSunset 7:10PM Tuesday March 31, 2020 8:51 PM EDT (00:51 UTC) Moonrise 10:40AMMoonset 1:23AM Illumination 55% Phase: First Quarter Moon; Moon at 8 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- 716 Pm Edt Tue Mar 31 2020
.small craft advisory in effect through Thursday evening...
Tonight..NE winds 10 to 15 kt. Seas 4 to 6 ft.
Wed..N winds 10 to 15 kt with gusts up to 25 kt. Seas 4 to 7 ft.
Wed night..N winds 15 to 20 kt with gusts up to 25 kt. Seas 5 to 8 ft. Patchy fog. A chance of showers. Vsby 1 to 3 nm.
Thu..N winds 15 to 20 kt with gusts up to 30 kt. Seas 6 to 9 ft. Patchy fog. Showers. Vsby 1 nm or less.
Thu night..N winds 20 to 25 kt with gusts up to 30 kt. Seas 8 to 13 ft. Patchy fog. Showers. Vsby 1 nm or less.
Fri..NE winds 20 to 25 kt with gusts up to 35 kt. Seas 11 to 15 ft. Patchy fog. A chance of showers. Vsby 1 to 3 nm.
Fri night..NE winds 15 to 20 kt with gusts up to 30 kt. Seas 10 to 14 ft.
Sat..NE winds 15 to 20 kt. Seas 8 to 13 ft.
Sat night..NE winds 5 to 10 kt. Seas 7 to 10 ft.
Sun..E winds 5 to 10 kt. Seas 5 to 8 ft.
Sun night..SW winds 5 to 10 kt. Seas 5 to 7 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 716 Pm Edt Tue Mar 31 2020
Synopsis for massachusetts and rhode island coastal waters.. A ridge of high pres will build over the waters into tonight. A gale center will track well south and east of the waters Wed into Thu then become nearly stationary into Fri. The storm will bring increasing N winds with gale force gusts possible Thu into Fri. High pres will build over the waters during the weekend. 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 Marblehead, MA
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location: 42.5, -70.85     debug


Area Discussion for - Boston, MA
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FXUS61 KBOX 312343 AFDBOX

Area Forecast Discussion National Weather Service Boston/Norton MA 743 PM EDT Tue Mar 31 2020

SYNOPSIS. Closed upper low pressure lingers over New England through midweek, but should see mainly dry conditions. An ocean storm will pass well south of the region late this week, bringing gusty and cool northeast winds especially along east coastal areas. An area of rain will move onshore across the region Wednesday night into Friday morning, with wet snow possible especially across the high terrain. High pressure will bring dry but continued cool conditions Saturday. Another weak, fast moving system will bring unsettled weather on Sunday, then dry conditions return early next week.

NEAR TERM /UNTIL 6 AM WEDNESDAY MORNING/. Main changes this evening were to adjust sky cover per latest satellite data. Mainly clear across southern New England, with some clouds lingering just east of Cape Cod and Nantucket, as well as towards the Berkshires.These clouds were moving from NE to SW. Above these, were some higher clouds generally moving from W to E. Expecting the higher clouds to arrive first, with the lower clouds filling back in after midnight as the lower level humidity increases. Not thinking there is enough moisture for showers, but cannot entirely dismiss the idea of a few sprinkles towards the Cape and islands.

Minor tweaks to temperatures to bring them back in line with observed trends.

Previous Discussion .

Cool high pressure nosing southward into New England providing dry but chilly weather. Few low top showers trying to pop over the high terrain of western MA but as diurnal heating wanes this isolated activity will diminish. Otherwise decreasing clouds over Cape Cod and the Islands this evening. Clouds likely lift but persist somewhat over western CT/MA this evening and overnight.

As for temps sided with the cooler MOS guidance as winds decouple away from the coast and with dew pts in the 20s temps will get chilly overnight. After 06z winds shift more to the NE and increase. This may result in low clouds coming back onshore along with some light spotty rain/showers into southeast MA. Temps will likely level off or even rise a few degs late given increasing clouds and NE winds especially over southeast MA.

SHORT TERM /6 AM WEDNESDAY MORNING THROUGH WEDNESDAY NIGHT/. Tomorrow will be watching mid level low emerging out of the TN Valley this afternoon as it tracks ENE off the Mid Atlc coast Wed morning. Dry weather prevails across our region but clouds may dominate the day across eastern MA given NE onshore flow and perhaps some light rain late in the day over Cape Cod and Islands. However farther inland across RI/CT and western-central MA expecting dry weather to prevail with at least partial sunshine. Despite the partial sunshine inland temps will remain chilly given same airmass in place. Expecting highs in the mid to upper 40s inland and upper 30s to lower 40s across eastern MA. Thus another cooler than normal day and gusty NE winds up to 25-30 mph across Cape Cod and Islands will add to the chilly conditions.

Wednesday night .

Low tracking well southeast of New England and deepens to about 980 mb by 12z Thu as it enters southeast Georges Bank. While most of our area will remain dry given this distant storm track, the mid level circulation is very large and wraps warm air aloft (TROWAL) back into New England. This will support a risk of rain entering eastern MA. Per model soundings column is cold enough to support some light snow per wet bulb temps but precip may not be heavy enough for wet bulb temps to be realized. Thus, expecting mainly light rain now but will have to watch if heavier precip rotates westward.

LONG TERM /THURSDAY THROUGH TUESDAY/. Highlights .

* Near to below normal temperatures through Saturday night, the near to above normal temperatures into early next week

* Periods of showers developing sometime late Wednesday night into Friday

* Dry Saturday, then spotty showers with another weak disturbance Sunday

* Mainly dry conditions Saturday through Tuesday, expect for some scattered showers possible with a cold front passage Sunday into Sunday night

Details .

Mid level flow not expected to evolve too much through the end of this week. Still thinking southern New England will be under the influence of a persistent cutoff meandering between the Great Lakes and the North Atlantic. This pocket of colder air aloft will maintain some instability where showers will result at times. This cutoff should finally move far enough away from our region towards Saturday. Expecting the weather pattern to be more progressive as we head into early next week.

At the surface, expecting an offshore low pressure to retrograde back to the west Thursday night into Friday. While this low should remain over the North Atlantic, it should get close enough to produce a period of showers, especially across eastern MA. Depending upon the exact timing, which is not yet known, there is a risk for some wet snowflakes across the higher terrain of central and western MA Thursday night.

With a high pressure farther to the north, the pressure gradient increases. Could be quite gusty towards the coasts during this time, too.

As this low pressure moves farther away Friday into Saturday, looking at a drying trend. Winds will diminish Friday night, but will remain onshore so could see a few isolated showers lingering across Cape Cod and the islands. High pressure then passes by Saturday, with another cold front sweeping across our region Sunday. We should return to the influence of a high pressure early next week.

AVIATION /00Z WEDNESDAY THROUGH SUNDAY/. Forecaster Confidence Levels .

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

Tonight . High confidence in trends. Lower confidence on exacting timing.

Mainly VFR this evening. MVFR conditions more likely after 01/06Z across the Cape and islands. Eventually, expecting MVFR conditions to develop along the east coast, including KBOS. Likely in place for the morning push.

Wednesday . Moderate confidence. Some uncertainty how far inland MVFR cigs will track.

MVFR cigs over southeast MA, including Cape Cod and Islands. VFR elsewhere. N wind gusts 25-30 kt developing in the afternoon over Cape/Islands.

Wednesday night . Moderate confidence. Some uncertainty how far inland MVFR cigs and showers will track.

MVFR likely along eastern MA coast with possible light rain/snow showers. VFR cigs likely farther inland with dry weather.

KBOS Terminal . High confidence in TAF through most of tonight. Uncertainty on arrival time and duration of MVFR conditions during the morning.

KBDL Terminal . High confidence in trends, but lower confidence on exact timing.

Outlook /Thursday through Sunday/ .

Thursday: MVFR/IFR conditions possible. Windy with gusts up to 30 kt. Chance SHRA.

Thursday Night: Mainly MVFR, with areas IFR possible. Windy with gusts up to 35 kt. Chance SHRA, patchy FG.

Friday: MVFR/IFR conditions possible. Windy with gusts up to 35 kt. Slight chance SHRA.

Friday Night: Mainly VFR, with local IFR possible. Windy with local gusts up to 30 kt. Slight chance SHRA.

Saturday: Mainly VFR, with areas MVFR possible. Breezy.

Saturday Night: VFR.

Sunday: Mainly VFR, with local MVFR possible. Chance SHRA.

MARINE. Tonight . Modest NNE wind 10-15 kt with gusts up to 20 kt. Seas 5-8 ft across the outer waters given long NE fetch. Mainly dry weather and good vsby.

Wednesday . Low pres emerges off the NC coast and moves ENE well south of New England. However NE winds increase to 20-25 kt late in the day. Seas build as well along with some light spotty rain.

Wednesday night . Low pres intensifies as it tracks well southeast of 40N/70W then into southeast Georges Bank. NNE winds increase 20-30 kt along with vsby reduced in rain.

Outlook /Thursday through Sunday/ .

Thursday: Low risk for gale force winds with gusts up to 35 kt. Rough seas up to 12 ft. Rain showers likely, patchy fog. Local visibility 1 nm or less.

Thursday Night: Low risk for gale force winds with gusts up to 35 kt. Rough seas up to 18 ft. Rain showers likely, patchy fog. Local visibility 1 nm or less.

Friday: Strong winds with gusts up to 35 kt. Rough seas up to 19 ft. Chance of rain showers.

Friday Night: Moderate risk for Small Craft Advisory winds with gusts up to 30 kt. Rough seas up to 18 ft. Slight chance of rain showers.

Saturday: Low risk for Small Craft Advisory winds with gusts up to 25 kt. Rough seas up to 16 ft.

Saturday Night: Winds less than 25 kt. Rough seas up to 13 ft.

Sunday: Winds less than 25 kt. Rough seas up to 10 ft. Slight chance of rain showers.

BOX WATCHES/WARNINGS/ADVISORIES. CT . None. MA . None. RI . None. MARINE . Small Craft Advisory from noon Wednesday to 8 PM EDT Thursday for ANZ231>235-237. Small Craft Advisory until 8 PM EDT Thursday for ANZ250-251- 254>256.

SYNOPSIS . Belk/Nocera NEAR TERM . Belk/Nocera SHORT TERM . Nocera LONG TERM . Belk AVIATION . Belk/Nocera MARINE . Belk/Nocera


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
44013 - BOSTON 16 NM East of Boston, MA 15 mi62 min ENE 9.7 G 14 36°F 43°F7 ft1015.9 hPa (-0.6)29°F
44029 - Buoy A0102 - Mass. Bay/Stellwagen 15 mi168 min E 9.7 G 14 36°F 42°F9 ft1014.7 hPa
BHBM3 - 8443970 - Boston, MA 15 mi58 min 36°F 43°F1015.5 hPa
IOSN3 - Isle of Shoals, NH 34 mi52 min ESE 7 G 8 36°F 1016.3 hPa (+0.0)30°F
44073 40 mi168 min E 7.8 G 12 38°F 41°F
44098 - Jeffrey's Ledge, NH (160) 42 mi44 min 43°F7 ft
44018 - SE Cape Cod 30NM East of Nantucket, MA 43 mi62 min NE 12 G 16 35°F 8 ft1016.2 hPa (-0.6)26°F

Wind History for Providence, RI
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Beverly, Beverly Municipal Airport, MA7 mi59 minESE 510.00 miFair34°F26°F73%1016.1 hPa
Boston, Logan International Airport, MA13 mi2 hrsE 1010.00 miA Few Clouds35°F27°F72%1016.7 hPa
Lawrence Municipal Airport, MA21 mi2 hrsE 610.00 miFair37°F28°F70%1017 hPa
Laurence G Hanscom Field Airport, MA23 mi61 minE 810.00 miFair36°F27°F70%1017.4 hPa
East Milton, MA24 mi-44579 minE 10 mi31°F26°F82%1016.5 hPa

Link to 5 minute data for KBVY

Wind History from BVY (wind in knots)
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E95NE64NE7E7E5
1 day agoE12
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2 days agoCalmSE5S3S4SE4SE5E4E6E7SE8SE9SE9E7E8E6E11E8E16
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Tide / Current Tables for Marblehead, Massachusetts
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Marblehead
Click for Map
Tue -- 01:22 AM EDT     Moonset
Tue -- 04:32 AM EDT     8.89 feet High Tide
Tue -- 06:26 AM EDT     Sunrise
Tue -- 10:40 AM EDT     Moonrise
Tue -- 10:58 AM EDT     0.72 feet Low Tide
Tue -- 05:14 PM EDT     7.84 feet High Tide
Tue -- 07:09 PM EDT     Sunset
Tue -- 11:12 PM EDT     1.55 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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34.86.57.88.78.87.86.24.32.61.20.71.42.94.55.97.17.87.66.553.52.31.6

Tide / Current Tables for Marblehead Channel, Massachusetts Current
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Marblehead Channel
Click for Map
Tue -- 01:22 AM EDT     Moonset
Tue -- 01:52 AM EDT     0.43 knots Max Flood
Tue -- 05:26 AM EDT     -0.00 knots Slack
Tue -- 06:26 AM EDT     Sunrise
Tue -- 08:23 AM EDT     -0.35 knots Max Ebb
Tue -- 10:39 AM EDT     Moonrise
Tue -- 12:20 PM EDT     0.00 knots Slack
Tue -- 02:22 PM EDT     0.39 knots Max Flood
Tue -- 05:58 PM EDT     -0.00 knots Slack
Tue -- 07:08 PM EDT     Sunset
Tue -- 08:44 PM EDT     -0.28 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.10.30.40.40.30.1-0.1-0.3-0.3-0.3-0.3-0.2-0.10.20.40.40.30.2-0-0.2-0.3-0.3-0.2-0.2

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 (20,4,5,8)
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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.