Tuesday, August11, 2020
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Marine Weather and Tides
Taunton, 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 5:47AMSunset 7:51PM Tuesday August 11, 2020 9:31 PM EDT (01:31 UTC) Moonrise 11:54PMMoonset 1:29PM Illumination 44% Phase: Third Quarter Moon; Moon at 23 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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ANZ236 Narragansett Bay- 716 Pm Edt Tue Aug 11 2020
Tonight..SW winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight. Waves around 2 ft. Patchy fog.
Wed..SW winds 5 to 10 kt. Waves around 2 ft. Patchy fog. A chance of showers.
Wed night..SW winds 5 to 10 kt, becoming W after midnight. Waves around 2 ft.
Thu..N winds around 5 kt, becoming se in the afternoon. Waves around 2 ft.
Thu night..S winds 5 to 10 kt, becoming W after midnight. Waves 1 foot or less.
Fri and Fri night..NE winds 5 to 10 kt. Waves 2 to 3 ft.
Sat through Sun night..E winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to 4 ft. 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 Aug 11 2020
Synopsis for massachusetts and rhode island coastal waters.. High pres se of the waters through tonight. A cold front will sag se into the nrn coastal waters Wed, and linger around the srn coastal waters through Thu. High pres over se canada dominates our weather this weekend into early next week. 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 Taunton, MA
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location: 41.88, -71.1     debug


Area Discussion for - Boston, MA
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FXUS61 KBOX 112309 AFDBOX

Area Forecast Discussion National Weather Service Boston/Norton MA 709 PM EDT Tue Aug 11 2020

SYNOPSIS. Oppressive heat and humidity continues through Wednesday. A cold front will slide into southern New England tonight into Wednesday, bringing chances of showers and storms. The front will stall south of the coast Thursday into Friday with a few showers or a thunderstorm possible along the south coast. Otherwise mainly dry weather with somewhat cooler temperatures Friday into the weekend. A slow moving frontal system will bring a chance of showers and thunderstorms early next week.

NEAR TERM /UNTIL 6 AM WEDNESDAY MORNING/. 710 PM update .

Line of convection moving through central NY ahead of a cold front in western NY. CAMs indicate these storms will weaken as they move into western New Eng later this evening. Poor mid level lapse rates and boundary layer cooling will limit instability as this activity moves into a less favorable environment. Scattered showers and an isold t-storm possible in western MA/CT later this evening but should dissipate before it reaches the coastal plain.

The other concern for tonight is stratus and fog along the south coast. Stratus already developing and should spread northward and impact portions of southern RI, S coastal MA and Cape/Islands.

Previous discussion .

Highlights

* Increasing cloud cover with stratus/fog along the south coast. Chances of showers and thunderstorms across western MA/CT as a cold front slides in from the west. Still mild with lows in the low to mid 70s.

Fairly zonal flow pattern across the CONUS. Will have some troughiness over New England. There is a shortwave lifting from northern New England/southern Quebec into Newfoundland late tonight. At the surface a weak cold front will slide into southern New England.

Anticipating showers and storms to develop across central NY this evening and slide eastward. Vast majority of guidance has this complex weaken as it moves into our neck of the woods where low and mid level lapse rates are poor along with low deep layer shear. Falls closely in line with the majority of HREF members and synoptic scale guidance.

Have added low level stratus and fog to the south coast once again. Pattern has not changed significantly from the past couple of days, so opted to add this in the latest update. Leaned heavily on the HREF, NAMNest and GLAMP guidance.

Have kept the mild temperatures, which will be warmer in comparison to last night due to the increased cloudiness. Lows generally will be in the lower to middle 70s across the region.

SHORT TERM /6 AM WEDNESDAY MORNING THROUGH WEDNESDAY NIGHT/. Highlights

* Another muggy day with oppressive heat across southern New England, but cooler compared to Tuesday.

* Chances of showers and thunderstorms across southern New England. Best chance in a corridor from northern CT through RI into eastern MA.

* Drier weather returns Wednesday night, but a few isolated showers/storms are possible along the south coast with the cold front nearby.

Wednesday .

Will see a roughly 40 to 60 kt 250 hPa jet streak sliding across the eastern Great Lakes into northern New England. Will have a shortwave trough sliding across the eastern Great Lakes into New England. At the surface a weak cold front will be stalled out over the region.

Have reduced precipitation chances in the latest update as majority of the guidance downplays the front moving through. Think this really is due to the relatively weak forcing aloft. With this said have leaned on the CAMs and EPS to try and get an idea on where the best opportunity of showers/storms is. Roughly thinking from northern CT through northern RI to near Boston is where the best chance is. This may even be overdone as the NAM brings no precipitation.

Despite this still could see some thunderstorms, but CAPE will be more limited due to the increased cloudiness. Could see a few hundred to 1000 J/kg of MLCAPE. Deep layer shear is still limited along with poor mid level lapse rates, so am not anticipating any severe storms. Will see a slug of 1.5 to 2 inch PWATs and warm cloud layer depths of 3-4 km. Could have some locally heavy downpours. If storms train over the same areas along and south of the front there could be localized urban or poor drainage flooding.

Still continued the Heat Advisory. No major changes from the previous forecast where values are somewhat marginal given the increased cloudiness. Dew points still remain in the upper 60s to low 70s until the frontal passage. Highs range from the mid 80s to low 90s. May need to remove a few locations in future updates, but highest heat indices expected across the Merrimack and CT Valley.

Wednesday night .

Cold front sags southward and stalls over or just south of the south coast. Have continued the downward trend in precipitation chances. Leaned more toward the CAMs which show little to no precipitation in areas that really need it along the south coast. Could see some stratus/fog along portions of the south coast depending on where the front is located.

Will be a bit cooler across the interior with low temperatures in the 60s. Coastal locations will still see readings around 70 degrees.

LONG TERM /THURSDAY THROUGH TUESDAY/. Highlights .

* Low risk for a few showers/t-storm along south coast Thu/Fri * Mainly dry/cooler this weekend with more seasonable temps * Increasing risk for showers/t-storms early next week

Thursday and Friday .

Cold front expected to stall south of New Eng with dry weather for much of the region. However, the proximity of the front may lead to a few spot showers or t-storm along the immediate south coast and Islands Thu and Fri along the northern edge of the elevated PWAT plume. Still very warm/hot Thu away from the coast with highs well into 80s to lower 90s, then mostly 80s for Fri. It will be somewhat less humid away from the south coast, but still rather humid along the south coast with dewpoints hovering near 70.

Saturday and Sunday .

Cooler temp regime as high pres builds south from Canadian Maritimes with low level NE flow. This will keep temps mostly in the 70s along the coast but reaching the 80s further in the interior. Humidity levels will be manageable with dewpoints mostly in the upper 50s interior to lower 60s near the coast. Mainly dry weather expected, but an isolated spot shower can't be ruled out with onshore flow.

Monday and Tuesday .

Mid level trough will gradually approach New Eng from the Gt Lakes. This will lead to an increasing risk of sct showers/t-storm sometime Mon into Tue as the cold front approaches. However, timing is uncertain as notable timing differences exist between GFS and ECMWF. Will include chance PoPs Mon/Tue for now. Warmer temps return 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 . Moderate confidence

Mainly VFR, but areas of IFR stratus and fog developing across Cape/Islands and portions of south coast. Western areas could see a decaying shower/storm as the cold front approaches. S to SW winds around 5-10 kts.

Wednesday . High confidence

Anticipate VFR conditions overall, but if showers/storms develop over a terminal could have periods of heavy rain along with a thunderstorm. Have held off on the thunder mention at this point in time. If this occurs may have local MVFR to IFR conditions, but coverage of showers/storms may be limited per the latest guidance. Haven't included in latest TAF. SW winds 5-10 kt ahead of the front, W to NW winds at similar speeds behind it.

Wednesday night . High confidence

Front stalls out nearby or along the south coast. This could bring an isolated shower/storm. Should have VFR conditions, but may see some stratus/fog along the south coast.

KBOS Terminal . High confidence in TAF.

KBDL Terminal . High confidence in TAF

Outlook /Thursday through Sunday/ .

Thursday: VFR.

Thursday Night: Mainly VFR, with local MVFR possible.

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

Saturday: Mainly VFR, with local MVFR possible. Breezy. Slight chance SHRA.

Saturday Night: VFR. Breezy.

Sunday: Mainly VFR, with local MVFR possible. Breezy.

MARINE. Quiet weather conditions expected with the borderline Small Craft Advisory gusts diminishing across the eastern waters tonight. Waves remaining at or below 4 ft. Main concern is the low clouds and stratus. Will see visibilities fall between 1-3 nm.

Isolated showers and thunderstorms possible on Wednesday and Wednesday night as a slow moving cold front pushes in.

Outlook /Thursday through Sunday/ .

Thursday: Winds less than 25 kt. Slight chance of rain showers, slight chance of thunderstorms.

Thursday Night: Winds less than 25 kt. Chance of rain showers, chance of thunderstorms.

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

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

Saturday through Saturday Night: Low risk for Small Craft Advisory winds with gusts up to 25 kt. Seas up to 5 ft.

Sunday: Winds less than 25 kt. Areas of rough seas.

BOX WATCHES/WARNINGS/ADVISORIES. CT . Heat Advisory until 8 PM EDT Wednesday for CTZ002>004. Air Quality Alert until 11 PM EDT this evening for CTZ002-003. MA . Heat Advisory until 8 PM EDT Wednesday for MAZ003>007-010>021- 026. Air Quality Alert until 11 PM EDT this evening for MAZ008>011. RI . Heat Advisory until 8 PM EDT Wednesday for RIZ001>004-006. MARINE . None.

SYNOPSIS . KJC/BL NEAR TERM . KJC/BL SHORT TERM . BL LONG TERM . KJC AVIATION . KJC/BL MARINE . KJC/BL


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
FRVM3 - 8447386 - Fall River, MA 13 mi44 min 78°F 80°F
BLTM3 - 8447387 - Borden Flats Light at Fall River, MA 13 mi44 min 78°F
FRXM3 13 mi44 min 78°F
PVDR1 16 mi44 min 79°F
CPTR1 - 8452944 - Conimicut Light, RI 17 mi44 min 77°F 80°F
FOXR1 - 8454000 - Providence, RI 17 mi44 min 79°F 80°F
NAXR1 - Narragansett Bay Reserve, RI 21 mi107 min WSW 7 77°F 1015 hPa73°F
PTCR1 - 8452951 - Potter Cove, Prudence Island, RI 21 mi44 min 77°F
PRUR1 22 mi44 min 76°F
QPTR1 - 8454049 - Quonset Point, RI 26 mi44 min 77°F 79°F
NWPR1 - 8452660 - Newport, RI 29 mi44 min 75°F 72°F
BHBM3 - 8443970 - Boston, MA 33 mi50 min 82°F 64°F
BZBM3 - 8447930 - Woods Hole, MA 33 mi44 min 75°F 77°F
BUZM3 - Buzzards Bay, MA 34 mi32 min SSW 12 G 13 1016.1 hPa (+0.8)
WAXM3 - Waquoit Bay Reserve, MA 37 mi107 min S 2.9 78°F 1015 hPa75°F
44013 - BOSTON 16 NM East of Boston, MA 40 mi42 min S 12 G 14 74°F 70°F2 ft1012 hPa (+1.1)68°F
44090 41 mi35 min 69°F1 ft

Wind History for Borden Flats Light at Fall River, MA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Taunton, Taunton Municipal Airport, MA4 mi40 minS 710.00 miPartly Cloudy78°F72°F82%1014.2 hPa
New Bedford, New Bedford Regional Airport, MA15 mi39 minSW 810.00 miMostly Cloudy78°F73°F87%1014.6 hPa
Pawtucket, North Central State Airport, RI16 mi36 minSSW 510.00 miA Few Clouds76°F71°F85%1009.3 hPa
Providence, Theodore Francis Green State Airport, RI20 mi41 minSSW 810.00 miMostly Cloudy78°F73°F85%1014.7 hPa
Plymouth, Plymouth Municipal Airport, MA20 mi40 minSSW 910.00 miFair76°F71°F85%1014.6 hPa
Norwood, Norwood Memorial Airport, MA22 mi39 minS 610.00 miFair77°F66°F71%1013.7 hPa
East Milton, MA23 mi41 minS 12 G 20 mi76°F66°F72%1014.7 hPa

Link to 5 minute data for KTAN

Wind History from TAN (wind in knots)
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1 day ago4S443SW4SW3SW4SW3SW3Calm45SW445S5SW9SW7SW10
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2 days agoS3S3SE3CalmCalmCalmCalmCalmCalmCalmSW34S535SW8S9S9
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Tide / Current Tables for Taunton, Taunton River, Massachusetts
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Taunton
Click for Map
Tue -- 02:46 AM EDT     2.32 feet High Tide
Tue -- 05:48 AM EDT     Sunrise
Tue -- 09:03 AM EDT     0.55 feet Low Tide
Tue -- 12:47 PM EDT     Last Quarter
Tue -- 01:28 PM EDT     Moonset
Tue -- 03:21 PM EDT     2.66 feet High Tide
Tue -- 07:49 PM EDT     Sunset
Tue -- 09:48 PM EDT     0.84 feet Low Tide
Tue -- 11:53 PM EDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.51.92.22.32.21.81.410.70.50.711.41.82.32.62.62.421.51.10.90.81

Tide / Current Tables for Fall River, Massachusetts
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Fall River
Click for Map
Tue -- 02:08 AM EDT     3.71 feet High Tide
Tue -- 05:49 AM EDT     Sunrise
Tue -- 07:11 AM EDT     0.87 feet Low Tide
Tue -- 12:47 PM EDT     Last Quarter
Tue -- 01:28 PM EDT     Moonset
Tue -- 02:43 PM EDT     4.24 feet High Tide
Tue -- 07:49 PM EDT     Sunset
Tue -- 07:56 PM EDT     1.33 feet Low Tide
Tue -- 11:53 PM EDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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33.43.73.52.921.20.911.41.92.433.64.14.23.832.11.51.31.51.82.1

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.
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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Boston, MA (21,6,7,8)
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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.