Tuesday, May26, 2020
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Marine Weather and Tides
East Falmouth, 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 5:10AMSunset 8:06PM Tuesday May 26, 2020 2:15 PM EDT (18:15 UTC) Moonrise 8:20AMMoonset 11:54PM Illumination 21% Phase: Waxing Crescent; Moon at 5 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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ANZ233 Vineyard Sound- 116 Pm Edt Tue May 26 2020
This afternoon..S winds around 5 kt. Seas around 2 ft. Areas of fog. Vsby 1 nm or less.
Tonight..SW winds 5 to 10 kt. Seas around 2 ft. Patchy fog. Vsby 1 nm or less.
Wed..SW winds 5 to 10 kt. Seas 1 foot or less. Patchy fog. Vsby 1 nm or less.
Wed night..SW winds 5 to 10 kt. Seas around 2 ft.
Thu..SW winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Seas around 2 ft.
Thu night..SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers.
Fri through Sat night..W winds 10 to 15 kt with gusts up to 25 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 116 Pm Edt Tue May 26 2020
Synopsis for massachusetts and rhode island coastal waters.. Fog and low clouds will thin by this afternoon as high pressure moves east of the waters. This will provide dry weather through Thursday along with developing south to southwest winds. A cold front will bring scattered showers and Thunderstorms Friday and Friday night. Winds then shift out of the west on Saturday. 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 East Falmouth, MA
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location: 41.53, -70.55     debug


Area Discussion for - Boston, MA
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FXUS61 KBOX 261754 AFDBOX

Area Forecast Discussion National Weather Service Boston/Norton MA 154 PM EDT Tue May 26 2020

SYNOPSIS.

Summer-like warmth and mugginess away from the coast for much of the work week. A cold front approaches from the west Friday and moves across the area Saturday. Both days will feature a risk of scattered showers and thunderstorms. Cooler, drier and less humid conditions follow on Sunday and Monday.

NEAR TERM /UNTIL 6 PM THIS EVENING/.

140 PM Update .

Plenty of sunshine with warm temperatures in progress away from the immediate coast. We should see many areas just inland from the coast see afternoon high top out in the middle 80s with a bit of humidity too. Along the immediate coast, sea breezes will result in much cooler temps in the 60s to middle 70s. Low clouds will impact the Cape and Islands with perhaps some more fog developing toward early evening.

SHORT TERM /6 PM THIS EVENING THROUGH WEDNESDAY NIGHT/.

* Wednesday looks to be warmer than Tuesday, including coastal areas.

Tonight .

As for the overnight hours, areas of locally dense fog could develop along and near the coast with the warm and moist air mass advecting over the relatively cold ocean waters. Best chance of dense fog would be over the south coast and Cape and the islands. As for overnight lows, have gone with a blend of guidance to yield values in the mid 50s to low 60s. Areas of patchy drizzle are also possible along the south coast and Cape and the Islands. But no significant rain is expected because only levels below 850 mb are saturated according to Bufkit soundings.

Wednesday .

For Wednesday, NAEFS shows temperatures for all levels at the 99th percentile! With a predominant southwesterly flow on Wednesday, expect highs to be even warmer than on Tuesday. So once again have used the 90th percentile of guidance for high temperatures, which will see parts of the interior especially north of the MA Pike approach 90 degrees. Places like Boston on the Eastern MA coast should see highs in the 80s thanks to surface winds backing to the southwest and the wind fields are a bit stronger as well, which should help keep the sea breeze at bay.

LONG TERM /THURSDAY THROUGH MONDAY/. Big Picture .

At 500-mb, warm high pressure sits along/off the New England coast. This shows a warm deep-layer, with south to southwest winds closer to the surface. Contours are forecast at 588-590 Dm, which is almost as high as has been measured in late May. Expect a warm period to finish the week. Northern stream trough digs over the region over the weekend, followed by a reinforcing trough early next week. Heights dip to around 560 Dm, which is on the cool side of normal.

Based on the deep layer heights and a developing southwest flow near the surface, expect above normal temperatures Thursday-Friday, then trending to below normal Sunday-Monday.

Good agreement on mass fields through the weekend, thus moderate- high forecast confidence much of the period. Increasing differences Monday suggest moderate forecast confidence at best that day.

Daily Concerns .

Wednesday night-Thursday .

West Atlantic surface high brings a south-southwest flow to the surface layer, with low moisture levels through the deep layer Wednesday night. The weak south along the coast may support stratus and fog/drizzle especially along the South Coast. But otherwise a dry night. Dew points in the lower 60s suggest overnight min temps in the low to mid 60s.

Moisture levels trend higher Thursday as low level airflow turns more from the southwest. PW values reach 1.5 inches or higher Thursday afternoon. Even so, lift remains hard to find with the 30- kt low level jet directed more toward NY and PA than New England. Any showers will be widely scattered and mostly close to the low level jet west of us. The mixed layer reaches to 950 mb, but even temps at 925 mb look equiv to 8C at 850 mb. This would support max temps in the mid 70s south to around 80 along the NH border.

Friday-Saturday .

Northern stream shortwave moves through the flow, crossing the Great Lakes Friday and New England Saturday. Guidance shows early morning showers as the right entrance region of the upper jet approaches, with these conditions continuing Friday through early Saturday. Not much cold advection aloft during the day, but the CAA does increase later Friday night and Saturday morning. It is at that time that a cold front moves through. Stability parameters are most supportive in Eastern NY Friday afternoon, with LI values most impressive at -5 to -7 in the Hudson Valley. Convection firing in this zone could then move into Western MA. Favorable stability values shift east along/ahead of the cold front Friday night/Saturday. Expect scattered showers/tstms during this time. High PW values also continue during this time, suggesting some local downpours possible.

Drier air moves in from the west late Saturday afternoon and night with clearing skies from west to east. A few showers may linger over the Cape and Islands Saturday night.

Sunday-Monday .

Surface ridge over the Great Lakes while upper trough digs through Eastern Canada over New England. Cold advection continues, with the associated -27C cold pool core moving across Nrn New England while Srn New England sees values of -20C to -25C. The airmass is forecast to be dry, but the low values lend some concern for diurnal clouds especially Monday.

AVIATION /18Z TUESDAY THROUGH SUNDAY/. Forecaster Confidence Levels .

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

18Z Update .

This afternoon . High confidence. VFR except for MVFR-IFR conditions across the Cape/Islands in lower clouds and fog patches. S winds 5 to 10 knots with sea breezes on the coast.

Tonight . Moderate confidence. Cooling boundary layer will result in low clouds and fog redeveloping across portions of the region. Given surface winds will shift to the SW, not sure how much of the IFR/low clouds make it north of the MA Turnpike. The LIFR conditions in fog, which may become dense should be confined to the south coast, Cape, and Islands.

Wednesday . High confidence. Lingering low clouds and fog will lift Wednesday morning with process being the slowest across the Cape and Islands. Otherwise, VFR conditions expected with SW wind gusts into the lower 20 knots during the afternoon across the southeast New England coast.

Wednesday night . Moderate to high confidence. The cooling boundary layer will once again result in low clouds overspreading the region from south to north. Appears this time the lower clouds will overspread most if not all of the region. So expect mainly lower end MVFR to IFR conditions. LIFR conditions with fog may impact the south coast, Cape, and Islands.

KBOS Terminal . Moderate to high confidence in TAF.

KBDL Terminal . Moderate to high confidence in TAF.

Outlook /Thursday through Saturday/ .

Thursday: Mainly MVFR, with areas VFR possible. Breezy. Slight chance SHRA.

Thursday Night through Friday: Mainly MVFR, with local IFR possible. Breezy. Chance SHRA, slight chance TSRA.

Friday Night: Mainly MVFR, with areas IFR possible. Breezy. Chance SHRA, slight chance TSRA, patchy BR.

Saturday: Mainly MVFR, with areas IFR possible. Trending VFR late afternoon and night. Breezy. Chance SHRA, slight chance TSRA.

MARINE. Today . Patchy morning fog and drizzle gives way to dry weather in the afternoon along with improving vsby. SE winds become SSW in the afternoon as warm front lifts north of the area. Winds at 5 to 10 kt. Seas 3 ft or less.

Tonight . Areas of fog develop with SSW winds of 8 to 12 kt. Seas 2 to 4 ft.

Wednesday . Patchy fog gives way to dry weather. SSW winds of 10 to 15 kt. Seas 2 to 4 ft.

Outlook /Thursday through Saturday/ .

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

Thursday: Winds less than 25 kt. Seas less than 5 feet.

Thursday Night: Winds less than 25 kt. Seas less than 5 ft. Chance of rain showers.

Friday: Low risk for Small Craft Advisory winds with gusts up to 25 kt. Seas up to 5 ft. Chance of rain showers, slight chance of thunderstorms.

Friday Night: Low risk for Small Craft Advisory winds with gusts up to 25 kt. Areas of rough seas, with 5 to 7 feet on the outer waters. Chance of rain showers, slight chance of thunderstorms.

Saturday: Winds less than 25 kt. Seas 5 to 7 feet, mainly on the outer waters. Chance of rain showers, slight chance of thunderstorms.

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

SYNOPSIS . WTB/Chai NEAR TERM . Frank SHORT TERM . Chai LONG TERM . WTB AVIATION . Frank/WTB MARINE . WTB/Chai


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
WAXM3 - Waquoit Bay Reserve, MA 4 mi90 min SSE 1.9 66°F 1023 hPa62°F
BZBM3 - 8447930 - Woods Hole, MA 6 mi45 min 64°F 56°F1023.5 hPa
44020 - NANTUCKET SOUND 15 mi25 min S 3.9 G 3.9 56°F 55°F1 ft1022.9 hPa56°F
44090 24 mi15 min 59°F
BUZM3 - Buzzards Bay, MA 27 mi75 min SW 8.9 G 8.9 1024.4 hPa (+0.0)
NTKM3 - 8449130 - Nantucket Island, MA 29 mi45 min SSW 1.9 G 6 63°F 59°F1023.7 hPa
CHTM3 34 mi57 min SSE 7 G 8 57°F 67°F1023.2 hPa
BLTM3 - 8447387 - Borden Flats Light at Fall River, MA 35 mi45 min SW 13 G 15 66°F 1023 hPa
FRXM3 35 mi45 min 68°F 62°F
FRVM3 - 8447386 - Fall River, MA 35 mi45 min 69°F 57°F1023.4 hPa
PRUR1 40 mi45 min 63°F 60°F
NWPR1 - 8452660 - Newport, RI 41 mi45 min S 8 G 8.9 64°F 51°F1023.3 hPa
NAXR1 - Narragansett Bay Reserve, RI 42 mi90 min WSW 5.1 71°F 1023 hPa62°F
PTCR1 - 8452951 - Potter Cove, Prudence Island, RI 43 mi45 min SW 8 G 12 69°F 1023.7 hPa
CPTR1 - 8452944 - Conimicut Light, RI 44 mi45 min 64°F 59°F1023.1 hPa
QPTR1 - 8454049 - Quonset Point, RI 46 mi45 min S 13 G 15 62°F 56°F1023.2 hPa
PVDR1 48 mi45 min SSE 11 G 11 69°F 1023.2 hPa63°F
44097 - Block Island, RI (154) 49 mi45 min 55°F4 ft
FOXR1 - 8454000 - Providence, RI 49 mi51 min S 8.9 G 11 72°F 54°F1023 hPa

Wind History for Nantucket Island, MA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Marthas Vineyard Airport, MA9 mi22 minSSW 810.00 miOvercast69°F62°F78%1023.2 hPa
Otis Air National Guard Base, MA9 mi80 minSSE 810.00 miMostly Cloudy73°F64°F74%1023 hPa
Hyannis, Barnstable Municipal-Boardman Airport, MA18 mi19 minS 610.00 miMostly Cloudy69°F61°F76%1023 hPa

Link to 5 minute data for KFMH

Wind History from FMH (wind in knots)
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Last 24hrSE6E4E4S4E3SE5SE5CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalm--NE5E6CalmSE8SE9
1 day agoNE10
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NE10NE10NE10NE10NE10NE10NE10NE10NE8NE8NE8NE8NE8NE8NE8NE8NE8E8E8E7SE7SE10
2 days agoNE17
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Tide / Current Tables for Falmouth Heights, Nantucket Sound, Massachusetts
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Falmouth Heights
Click for Map
Tue -- 01:55 AM EDT     1.45 feet High Tide
Tue -- 05:13 AM EDT     Sunrise
Tue -- 08:20 AM EDT     Moonrise
Tue -- 08:30 AM EDT     -0.01 feet Low Tide
Tue -- 02:37 PM EDT     1.27 feet High Tide
Tue -- 08:05 PM EDT     Sunset
Tue -- 08:40 PM EDT     0.18 feet Low Tide
Tue -- 11:54 PM EDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.21.41.51.41.10.80.50.2000.20.50.81.11.21.31.10.90.60.40.20.20.40.7

Tide / Current Tables for Woods Hole, Massachusetts Current (use with caution)
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Woods Hole
Click for Map
Tue -- 01:39 AM EDT     -0.01 knots Slack
Tue -- 04:22 AM EDT     -3.75 knots Max Ebb
Tue -- 05:14 AM EDT     Sunrise
Tue -- 07:20 AM EDT     0.18 knots Slack
Tue -- 08:21 AM EDT     Moonrise
Tue -- 11:27 AM EDT     3.39 knots Max Flood
Tue -- 02:24 PM EDT     -0.00 knots Slack
Tue -- 04:51 PM EDT     -3.49 knots Max Ebb
Tue -- 07:43 PM EDT     0.16 knots Slack
Tue -- 08:05 PM EDT     Sunset
Tue -- 11:38 PM EDT     2.95 knots Max Flood
Tue -- 11:54 PM EDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.92-1.5-3-3.7-3.6-2.8-1.31.82.63.13.43.32.91.7-2-3.2-3.5-3-1.91.22.22.62.9

Weather Map
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wmap_A
GEOS Local Image of    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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Boston, MA (14,3,4,5)
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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.