Tuesday, July14, 2020
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Marine Weather and Tides
West 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 5:20AMSunset 8:18PM Tuesday July 14, 2020 8:02 PM EDT (00:02 UTC) Moonrise 12:59AMMoonset 2:38PM Illumination 29% Phase: Waning Crescent; Moon at 24 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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ANZ234 Buzzards Bay- 717 Pm Edt Tue Jul 14 2020
Tonight..N winds 5 to 10 kt. Seas around 2 ft. A slight chance of showers. A slight chance of tstms this evening.
Wed..NE winds around 10 kt. Seas around 2 ft.
Wed night..NE winds 5 to 10 kt. Seas around 2 ft in the evening, then 1 foot or less.
Thu..E winds 5 to 10 kt. Seas 1 foot or less.
Thu night..SE winds 5 to 10 kt. Seas 1 foot or less.
Fri..S winds 5 to 10 kt. Seas 1 foot or less, then around 2 ft in the afternoon. A chance of showers. A chance of tstms in the afternoon.
Fri night..SW winds 5 to 10 kt. Seas around 2 ft. A chance of showers and tstms.
Sat..SW winds 5 to 10 kt. Seas 1 foot or less.
Sat night..SW winds 5 to 10 kt. Seas 1 foot or less.
Sun..SW winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 1 foot or less, then around 2 ft in the afternoon.
Sun night..SW winds around 10 kt. Seas around 2 ft. Winds and seas higher in and near tstms. 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 717 Pm Edt Tue Jul 14 2020
Synopsis for massachusetts and rhode island coastal waters.. A ridge of high pressure extending south from maine will settle over the waters for Wednesday and Thursday. This ridge of high pressure will slip east of the waters for Friday. A weak front will move over the waters for Saturday. This front will stall near the coast and weaken on Saturday. Another cold front will move over the waters Monday into Tuesday. 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 West Falmouth, MA
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location: 41.61, -70.72     debug


Area Discussion for - Boston, MA
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FXUS61 KBOX 142247 AFDBOX

Area Forecast Discussion National Weather Service Boston/Norton MA 647 PM EDT Tue Jul 14 2020

SYNOPSIS. Any showers or thunderstorms will come to an end early tonight. High pressure will build over the region Wednesday and Thursday with dry and cooler weather, but clouds will linger. A warm front will bring scattered showers and storms Friday, before warmer and more humid weather returns this weekend. A cold front should bring more showers and storms early next week.

NEAR TERM /THROUGH WEDNESDAY/. 645 PM Update:

Showers/storms gradually weakening but slow to dissipate. 500 mb low was centered off NH coast and colder air aloft is helping to maintain convection. Still have as much as 1000-1500 J/kg of surface based CAPE running from central MA to RI and colder air aloft is helping to sustain updrafts. Expect showers/storms to continue to slowly weaken early tonight, but it will probably take a few more hours for them to completely end, most likely toward midnight.

Otherwise developing E/NE flow will bring low clouds into most of SNE tonight. Somewhat drier air (lower dewpoints) should prevent much in way of fog formation, but we may see some patchy fog in areas that received heavy rainfall this afternoon.

Lows will fall back into upper 50s to mid 60s by daybreak.

High Surf Advisory will be allowed to expire at 8 pm, since offshore buoys have indicated seas have subsided enough. Still expecting a moderate risk of rip currents on south coastal beaches Wednesday, however.

SHORT TERM /WEDNESDAY NIGHT/. Continued NE flow will bring drier and cooler weather with highs in 70s to around 80 and overnight lows in 50s to lower 60s. Dewpoints are expected to drop into 50s and lower 60s so we will lose tropical humidity that we've dealt with past few days.

That said, model forecast soundings show plenty of low level moisture trapped beneath subsidence inversion. That means cloudiness will be tough to erode, resulting in cloudy skies with some breaks of sun, especially across CT and western MA. Additionally, there may be a few sprinkles near Berkshires due to upslope flow.

LONG TERM /THURSDAY THROUGH TUESDAY/. Highlights .

* Showers/storms Friday * Turning warmer/more humid over weekend * Showers/storms again Monday-Tuesday

On larger scale, northern stream begins to retreat over weekend as we come more under influence of broad upper ridge building over southern 2/3 of country. Models suggest we remain on northern periphery of ridge, which may very well keep more oppressive heat/humidity to our south over weekend and early next week, but odds favor summertime heat and humidity returning to SNE over weekend and early next week.

Pattern suggests a few chances of showers/storms - first Friday as warm front lifts through region, and second in Monday/Tuesday timeframe as pre-frontal trough is expected to cross area in advance of cold front which should still hang back across eastern Great Lakes.

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

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

00z TAF Update: Moderate confidence.

Showers/storms will gradually weaken and decrease in areal coverage before ending 02z-04z, but could still bring local MVFR/IFR.

MVFR/IFR ceilings prevail tonight and will be slow to erode Wed but expect gradual improvement to MVFR and lower-end VFR ceilings Wed afternoon and Wed night.

KBOS Terminal . High confidence in TAF.

KBDL Terminal . High confidence in TAF.

Outlook /Thursday through Sunday/ .

Thursday: Mainly VFR, with local MVFR possible.

Thursday Night: VFR. Breezy. Slight chance SHRA.

Friday: Mainly VFR, with local MVFR possible. Breezy. Chance SHRA, chance TSRA.

Friday Night: Mainly VFR, with local MVFR possible. Slight chance SHRA, slight chance TSRA.

Saturday through Sunday: VFR.

MARINE. Small Craft Advisories will be allowed to expire this evening on open south coastal waters where seas will subside, but issued another one for eastern MA waters tonight and Wed as increasing NE winds (below 25kt) bring building seas of up to 6 ft as high pressure builds north of region. NE winds diminish Wed night, allowing seas to subside once again.

Scattered storms will affect south coastal waters through this evening, some of which may produce hail and 30-40kt wind gusts, especially near shore. Dry weather expected Wed into Thu.

Outlook /Thursday through Sunday/ .

Thursday through Thursday Night: Winds less than 25 kt.

Friday: Winds less than 25 kt. Chance of thunderstorms, slight chance of rain showers.

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

Saturday through Sunday: Winds less than 25 kt.

BOX WATCHES/WARNINGS/ADVISORIES. CT . None. MA . High Surf Advisory until 8 PM EDT this evening for MAZ023-024. RI . High Surf Advisory until 8 PM EDT this evening for RIZ008. MARINE . Small Craft Advisory until 6 PM EDT Wednesday for ANZ250-254. Small Craft Advisory until 8 PM EDT this evening for ANZ255- 256.



JWD


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
BZBM3 - 8447930 - Woods Hole, MA 6 mi62 min 73°F
WAXM3 - Waquoit Bay Reserve, MA 11 mi77 min NW 2.9 69°F 1015 hPa65°F
BUZM3 - Buzzards Bay, MA 22 mi62 min ENE 11 G 12 1016.8 hPa (+2.0)
FRVM3 - 8447386 - Fall River, MA 24 mi62 min 77°F
44020 - NANTUCKET SOUND 25 mi42 min N 12 G 16 74°F1014.8 hPa
44090 26 mi65 min 70°F3 ft
NAXR1 - Narragansett Bay Reserve, RI 33 mi77 min NE 2.9 73°F 1016 hPa69°F
NWPR1 - 8452660 - Newport, RI 33 mi62 min 65°F
CPTR1 - 8452944 - Conimicut Light, RI 34 mi62 min 80°F
QPTR1 - 8454049 - Quonset Point, RI 36 mi62 min 76°F
FOXR1 - 8454000 - Providence, RI 39 mi62 min 75°F
NTKM3 - 8449130 - Nantucket Island, MA 40 mi62 min 76°F
44097 - Block Island, RI (154) 49 mi36 min 72°F4 ft

Wind History for Borden Flats Light at Fall River, MA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Otis Air National Guard Base, MA11 mi77 minN 1310.00 miMostly Cloudy68°F64°F88%1015.6 hPa
New Bedford, New Bedford Regional Airport, MA14 mi69 minVar 510.00 miFair72°F64°F79%1015.8 hPa
Marthas Vineyard Airport, MA15 mi69 minNNE 510.00 miPartly Cloudy70°F64°F84%1015.6 hPa
Plymouth, Plymouth Municipal Airport, MA21 mi70 minN 810.00 miPartly Cloudy69°F64°F84%1016 hPa
Hyannis, Barnstable Municipal-Boardman Airport, MA24 mi66 minN 86.00 miOvercast with Haze72°F64°F79%1015.1 hPa

Link to 5 minute data for KFMH

Wind History from FMH (wind in knots)
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Last 24hrSW6SW6SW6SW6SW6SW6SW6SW6W4NW4CalmNE6NE6NE8NE10
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1 day agoSW14W16SW14W13--SW9SW8SW10SW8SW7SW7SW7SW7SW8SW8SW8S8S12SW10
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Tide / Current Tables for West Falmouth Harbor, Buzzards Bay, Massachusetts
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West Falmouth Harbor
Click for Map
Tue -- 12:57 AM EDT     Moonrise
Tue -- 03:40 AM EDT     3.32 feet High Tide
Tue -- 05:21 AM EDT     Sunrise
Tue -- 08:43 AM EDT     0.87 feet Low Tide
Tue -- 02:38 PM EDT     Moonset
Tue -- 04:14 PM EDT     3.96 feet High Tide
Tue -- 08:15 PM EDT     Sunset
Tue -- 09:48 PM EDT     1.19 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.82.32.83.23.32.92.21.410.91.11.41.82.333.63.93.83.22.31.61.31.21.3

Tide / Current Tables for Cape Cod Canal, Massachusetts Current
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Cape Cod Canal
Click for Map
Tue -- 12:57 AM EDT     Moonrise
Tue -- 01:45 AM EDT     3.44 knots Max Flood
Tue -- 05:13 AM EDT     -0.03 knots Slack
Tue -- 05:20 AM EDT     Sunrise
Tue -- 08:02 AM EDT     -3.78 knots Max Ebb
Tue -- 11:08 AM EDT     0.16 knots Slack
Tue -- 02:13 PM EDT     3.56 knots Max Flood
Tue -- 02:38 PM EDT     Moonset
Tue -- 05:45 PM EDT     -0.02 knots Slack
Tue -- 08:15 PM EDT     Sunset
Tue -- 08:32 PM EDT     -3.80 knots Max Ebb
Tue -- 11:42 PM EDT     0.02 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.73.33.43.22.61.2-2.4-3.4-3.8-3.5-2.7-12.33.23.63.532.2-1.3-3-3.7-3.7-3.2-2.1

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.
Link to Loop

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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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.