Sunday, March29, 2020
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Marine Weather and Tides
Kingston, 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 6:28AMSunset 7:07PM Sunday March 29, 2020 1:40 PM EDT (17:40 UTC) Moonrise 9:20AMMoonset 12:00AM Illumination 31% Phase: Waxing Crescent; Moon at 6 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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ANZ231 Cape Cod Bay- 116 Pm Edt Sun Mar 29 2020
.small craft advisory in effect through late tonight...
This afternoon..E winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft. Patchy fog. Showers likely. Vsby 1 to 3 nm.
Tonight..E winds 20 to 25 kt, diminishing to 15 to 20 kt after midnight. Gusts up to 35 kt. Seas 2 to 4 ft. Patchy fog. Showers. Vsby 1 to 3 nm.
Mon..NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft.
Mon night..NE winds 10 to 15 kt with gusts up to 30 kt. Seas 2 to 4 ft. Patchy fog. A chance of showers. Vsby 1 to 3 nm.
Tue..N winds 10 to 15 kt with gusts up to 30 kt. Seas 4 to 7 ft. Patchy fog. A chance of showers. Vsby 1 to 3 nm.
Tue night..NE winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft.
Wed..NE winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft.
Wed night and Thu..N winds 10 to 15 kt with gusts up to 30 kt. Seas 2 to 4 ft. A chance of showers.
Thu night..N winds 10 to 15 kt with gusts up to 25 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 Sun Mar 29 2020
Synopsis for massachusetts and rhode island coastal waters.. A warm front will languish near the waters today, bringing rain. A cold front will slide through late today into Mon. Low pres develops on this front E of the waters and will slowly move E through Tue. Another low pres should pass well S of the waters Wed. 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 Kingston, MA
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location: 42, -70.73     debug


Area Discussion for - Boston, MA
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FXUS61 KBOX 291436 AFDBOX

Area Forecast Discussion National Weather Service Boston/Norton MA 1036 AM EDT Sun Mar 29 2020

SYNOPSIS. Cool wet late March day across southern New England today as a warm front remains south of the region, while a secondary low develops along the front. The low lifts to the east on tonight and on Monday, but an inverted trough extends back to the region, which will keep southern New England cool and wet. Best shot for some sunshine is across the Connecticut River Valley. Scattered rain showers may transition more towards snow showers later Monday into Tuesday morning with some coatings possible mainly in the higher terrain. Mainly dry weather prevails Tuesday afternoon into Wednesday, but it will be rather cloudy and chilly especially along the coast. An ocean storm will likely remain far enough offshore for significant impacts, but some showers will still be possible sometime Thursday and/or Friday.

NEAR TERM /UNTIL 6 PM THIS EVENING/. Much of the same this morning. Abundant clouds with showers at times the rest of today. Already seeing gusts increasing across the Cape and islands. Expecting winds to become gusty farther north along the coast as a low pressure near the Cape and islands continues to develop.

With a steady onshore flow and lack of sunshine, temperatures should not deviate much farther from present levels. Minor tweaks to bring the forecast back in line with observed trends.

Previous Discussion .

Highlights .

* Cool wet late March day across southern New England. Gusty winds across coastal areas.

A cutoff low and its associated trough will lift from the Upper Mississippi River Valley/Upper Midwest this morning into the central Great Lakes and southern Ontario. The primary surface low will be located over Wisconsin and will lift into the central Great Lakes. A secondary low will begin developing just south of Long Island late today along the warm front associated with the primary low.

Rain expected throughout southern New England today due to the warm front south of the region in combination with a jet streak lifting into northern New England along with Nova Scotia/New Brunswick. We have strong southerly 6 to 12 degree Celsius warm air advection at 850 hPa with southern New England being on the leading edge of this warm nose. Despite such strong warm air advection aloft expect winds at 925 hPa and the surface to be out of the east, which will keep it cool. This setup with lower clouds and easterly flow tends to keep surface temperatures much cooler as suggested by the HREF and members of the HREF guidance. Due to this nudged highs toward the 5th percentile of guidance. This yields high temperatures in the low to mid 40s.

Expect a strengthening low level jet that will slide along the south coast and gradually slide eastward to the east by Monday evening. Gusty winds are expected across the higher elevations and especially across locations immediately adjacent to the coast. Gusts of 20-35 mph are possible.

The secondary low will begin developing to the south. This combined with the strong low level jet and drier air beginning to move in across the Mid Atlantic. This may allow for some instability and potentially bring a few isolated thunderstorms with the best shot along the south coast.

SHORT TERM /6 PM THIS EVENING THROUGH 6 PM MONDAY/. Highlights

* Isolated thunderstorms possible this evening mainly along the south coast with rain continuing.

* Another cool, wet late March day on tap for Monday with rain showers as an inverted trough remains in place over the region.

The cutoff low will slowly rotate from the central Great Lakes/southern Quebec tonight into the eastern Great Lakes. The primary low will follow with the cutoff, while the secondary low slides offshore tonight and is east of Cape Cod on Monday.

Tonight .

Still good agreement amongst deterministic and ensemble guidance on how things evolve. Best opportunity for some thunderstorm activity is along the south coast during the evening as the dry slot moves in. There is some elevated instability per the NAM guidance with a few hundred J/kg of MUCAPE along the south coast. Expect the drier air to bring an end to precipitation south of the Mass Pike late, but this will be brief.

Winds at 850 hPa gradually shift to the west, which will advect cooler air into the region. Expect early flow at 925 hPa north of the Mass Pike, while south of the Pike winds will be northerly. Low temperatures will be in the 30s across the region.

Monday .

Will see low level flow out of the north/northeast, but will be weak between the low to the west and the low to the east on Monday. The secondary low will interact with the energy associated with the cutoff on Monday. This will extend a trough from the secondary low over southern New England. This coupled with cold air advection aloft will result in rain showers. Late in the afternoon and into the evening expect enough cold air to filter in that some rain will change over to snow across the higher elevations.

Nudged down surface temperatures toward the 10th percentile of guidance across much of southern New England. This is due cool northerly flow and being socked in low level clouds. The only exception is across the CT River Valley where some sun may break out. Here temperatures were nudged toward the 50th percentile of guidance, but if there is more sunshine than currently anticipated then temperatures are too low. Highs range from the upper 30s to 40s across most areas on Monday. The CT River Valley will see readings range from the mid 40s to the low 50s.

LONG TERM /MONDAY NIGHT THROUGH SATURDAY/. Highlights .

* Scattered rain showers may transition to snow showers Mon night with some coatings possible mainly in the higher terrain

* Bulk of scattered rain/snow showers end Tue morning, but remaining rather cloudy and chilly Tue afternoon

* An ocean storm will likely remain far enough offshore for significant impacts, but some showers possible Thu and/or Fri

Details .

Monday night .

Vigorous upper level energy moving across the region combined with an offshore low pressure system will allow for an inverted trough. The result will be scattered rain showers, which may transition to snow showers in some locations with cooling temps aloft Monday night. There is the potential for some coatings of snow, mainly on grassy surfaces in the high terrain where surface temps will be a few degrees cooler. Low temps will mainly be in the 30s.

Tuesday .

The bulk of the scattered rain/snow showers should come to an end Tue morning as shortwave energy moves east of the region. Low level NNE flow will likely keep an abundance of clouds across the region which should result in a rather chilly day. High temps will mainly be in the 40s with the coolest readings along the eastern MA coast.

Wednesday through Saturday .

A classic upstream blocking pattern /-NAO/ will be in place for the second half of the week. The guidance continues to indicate the development of an ocean storm as strong northern stream upper level energy dives southeast. The 00z operational runs and most of the ensembles continues to show the brunt of the upper level energy dropping southeast as opposed to digging south. This allows the ocean storm to stay far enough offshore for significant impacts. That being said, the upper level is pattern is quite complex and we are still beyond 84 hours in the model world so a track closer to the coast can not be completely ruled out. Even with an offshore track though, guidance indicates the potential for an inverted trough to bring a period of showers sometime Thursday and/or Friday.

Temperatures during the latter half of the week will remain cool especially across eastern MA with onshore flow. Highs may reach the 50s a few times in the lower CT River Valley, but will be tough to get out of the 40s across eastern MA most if not all of the week.

AVIATION /15Z SUNDAY THROUGH THURSDAY/. Forecaster Confidence Levels .

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

Today . Moderate to high confidence.

Mainly IFR to LIFR conditions continuing with visibility reductions due to fog and rainfall. Some MVFR conditions across the Cape/Islands should lower to IFR later today. E wind gusts of 20 to 30 knots develop along the coast.

Tonight . Moderate to high confidence.

IFR to LIFR conditions gradually improving as a secondary low slides offshore. Could see some isolated thunderstorm activity during the evening along the south coast, but confidence is too low at this point in time to include in the latest TAFs.

KBOS Terminal . Moderate to high confidence in the TAF.

KBDL Terminal . Moderate to high confidence in the TAF.

Outlook /Monday Night through Thursday/ .

Monday Night: MVFR/IFR conditions possible. Breezy. Chance SHRA, chance SHSN, patchy BR.

Tuesday: Mainly VFR, with local IFR possible. Breezy.

Tuesday Night: Mainly VFR, with local MVFR possible. Breezy.

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

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

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

MARINE. Extended and expanded the Small Craft Advisory due to increasing easterly winds today. This is a result of a warm front remaining south of the region along with a secondary low developing along the front. Not out of the question that the outer waters see occasional Gale Force gusts this afternoon and into this evening as a strong low level jet slides through. Rain showers expected throughout today with reduced visibilities especially in areas of heavier rain.

Could have some isolated thunderstorms late today into this evening. The best shot for any thunderstorm activity is across the southern waters.

Easterly winds diminishing tonight and shifting toward the north/northeast tonight. Still expect heightened seas across the ocean through Monday with rain.

Outlook /Monday Night through Thursday/ .

Monday Night: Moderate risk for Small Craft Advisory winds with local gusts up to 30 kt. Areas of rough seas. Chance of rain showers, patchy fog. Areas of visibility 1 to 3 nm.

Tuesday: Moderate risk for Small Craft Advisory winds with gusts up to 30 kt. Rough seas up to 11 ft. Slight chance of rain showers.

Tuesday Night: Low risk for Small Craft Advisory winds with gusts up to 25 kt. Areas of rough seas. Slight chance of rain showers.

Wednesday: Moderate risk for Small Craft Advisory winds with gusts up to 25 kt. Seas up to 5 ft. Slight chance of rain showers.

Wednesday Night: Low risk for Small Craft Advisory winds with gusts up to 25 kt. Seas up to 5 ft. Chance of rain showers.

Thursday: Moderate risk for Small Craft Advisory winds with gusts up to 30 kt. Local rough seas. Chance of rain showers.

BOX WATCHES/WARNINGS/ADVISORIES. CT . None. MA . None. RI . None. MARINE . Small Craft Advisory until 2 AM EDT Monday for ANZ231-232. Small Craft Advisory until 10 PM EDT this evening for ANZ233- 234. Small Craft Advisory until 11 PM EDT this evening for ANZ230. Small Craft Advisory until 8 PM EDT this evening for ANZ236. Small Craft Advisory until 8 AM EDT Monday for ANZ235-237. Small Craft Advisory until 8 PM EDT Monday for ANZ250-251- 254>256.

SYNOPSIS . Frank/BL NEAR TERM . Belk/Frank/BL SHORT TERM . BL LONG TERM . Frank AVIATION . Belk/Frank/BL MARINE . Belk/Frank/BL


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
44013 - BOSTON 16 NM East of Boston, MA 24 mi50 min ESE 14 G 21 44°F 43°F3 ft1021 hPa (-0.6)37°F
44090 24 mi40 min 42°F2 ft
BHBM3 - 8443970 - Boston, MA 30 mi70 min 42°F 44°F1020.9 hPa
FRVM3 - 8447386 - Fall River, MA 31 mi70 min 46°F 45°F1019.9 hPa
BLTM3 - 8447387 - Borden Flats Light at Fall River, MA 31 mi70 min E 9.9 G 15 46°F 1019.7 hPa
WAXM3 - Waquoit Bay Reserve, MA 31 mi115 min E 8 45°F 1020 hPa42°F
FRXM3 32 mi70 min 46°F 42°F
BZBM3 - 8447930 - Woods Hole, MA 33 mi70 min 45°F 44°F1018.9 hPa
44018 - SE Cape Cod 30NM East of Nantucket, MA 34 mi50 min E 16 G 19 43°F 3 ft1020.5 hPa (-1.5)33°F
44029 - Buoy A0102 - Mass. Bay/Stellwagen 37 mi96 min ESE 12 G 16 43°F 42°F3 ft1019.9 hPa
CPTR1 - 8452944 - Conimicut Light, RI 38 mi70 min E 12 G 14 44°F 46°F
PVDR1 38 mi70 min ESE 6 G 8.9 46°F 1020.4 hPa44°F
FOXR1 - 8454000 - Providence, RI 38 mi70 min SE 7 G 9.9 1020.5 hPa
NAXR1 - Narragansett Bay Reserve, RI 41 mi115 min ESE 5.1 45°F 1020 hPa44°F
PRUR1 41 mi70 min 45°F 44°F
PTCR1 - 8452951 - Potter Cove, Prudence Island, RI 41 mi70 min E 7 G 9.9 45°F 1020.2 hPa
44020 - NANTUCKET SOUND 42 mi60 min 3 ft
BUZM3 - Buzzards Bay, MA 45 mi40 min E 19 G 21 1019.3 hPa (+0.0)
QPTR1 - 8454049 - Quonset Point, RI 46 mi70 min ENE 9.9 G 12 45°F 45°F1019.7 hPa
NWPR1 - 8452660 - Newport, RI 47 mi70 min E 13 G 16 46°F 39°F1018.9 hPa

Wind History for Borden Flats Light at Fall River, MA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Plymouth, Plymouth Municipal Airport, MA6 mi48 minE 101.75 miLight Rain Fog/Mist43°F41°F93%1020.4 hPa
Marshfield Airport, MA7 mi45 minESE 81.00 miLight Rain43°F42°F100%1021.3 hPa
Taunton, Taunton Municipal Airport, MA17 mi48 minVar 41.75 miLight Rain Fog/Mist44°F43°F96%1020.3 hPa

Link to 5 minute data for KPYM

Wind History from PYM (wind in knots)
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N9NE7CalmSW3CalmCalmW3CalmW3CalmCalmCalmCalmCalmCalmNE45S5SE4--
2 days agoN12NE9E8NE7E7S4S4SE3S4S7S5SW7SW8SW8SW9SW10SW6SW7W6W6NW13NW8N11
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Tide / Current Tables for Plymouth, Massachusetts (2)
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Plymouth
Click for Map
Sun -- 03:11 AM EDT     9.60 feet High Tide
Sun -- 06:29 AM EDT     Sunrise
Sun -- 09:19 AM EDT     Moonrise
Sun -- 09:47 AM EDT     0.56 feet Low Tide
Sun -- 03:43 PM EDT     8.77 feet High Tide
Sun -- 07:05 PM EDT     Sunset
Sun -- 10:00 PM EDT     1.31 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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5.17.18.79.69.27.96.14.12.30.90.61.63.55.47.18.48.786.54.83.11.91.32

Tide / Current Tables for Cape Cod Canal, Massachusetts Current
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Cape Cod Canal
Click for Map
Sun -- 01:20 AM EDT     -0.02 knots Slack
Sun -- 04:26 AM EDT     -4.19 knots Max Ebb
Sun -- 06:29 AM EDT     Sunrise
Sun -- 07:20 AM EDT     0.00 knots Slack
Sun -- 09:19 AM EDT     Moonrise
Sun -- 10:21 AM EDT     4.02 knots Max Flood
Sun -- 01:49 PM EDT     -0.14 knots Slack
Sun -- 04:50 PM EDT     -4.04 knots Max Ebb
Sun -- 07:05 PM EDT     Sunset
Sun -- 07:44 PM EDT     0.03 knots Slack
Sun -- 10:39 PM EDT     3.79 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.91.5-2.2-3.5-4.1-4.1-3.3-1.72.33.543.93.32.3-1.1-2.9-3.8-4-3.6-2.41.433.73.8

Weather Map
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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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Wind Forecast for Boston, MA (13,3,4,5)
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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.