Tuesday, March31, 2020
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Marine Weather and Tides
Pocasset, 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 6:25AMSunset 7:09PM Tuesday March 31, 2020 4:01 PM EDT (20:01 UTC) Moonrise 10:42AMMoonset 1:19AM Illumination 53% 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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ANZ234 Buzzards Bay- 116 Pm Edt Tue Mar 31 2020
This afternoon..NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft.
Tonight..NE winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Gusts up to 20 kt. Seas 2 to 3 ft.
Wed..N winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft.
Wed night..N winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft.
Thu..N winds 15 to 20 kt with gusts up to 25 kt. Seas around 2 ft. Rain likely.
Thu night..N winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 4 ft. Showers likely.
Fri..N winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 5 ft. A chance of showers.
Fri night and Sat..NE winds 15 to 20 kt with gusts up to 30 kt, diminishing to 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft.
Sat night..NE winds 5 to 10 kt. Seas 2 to 3 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 116 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 Pocasset, MA
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location: 41.68, -70.62     debug


Area Discussion for - Boston, MA
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FXUS61 KBOX 311753 AFDBOX

Area Forecast Discussion National Weather Service Boston/Norton MA 153 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 7 PM THIS EVENING/.

1:45 AM Update .

Dry air continues to overspread the region from north to south with partly to mostly sunny conditions across much of eastern and central MA into RI and eastern CT. Clouds slower to erode over western CT/MA and over Cape Cod. Despite the sunshine cold temps aloft (-2C to -4C at 925 mb) limiting surface temps to only 40-45 with upper 30s along the eastern MA coastline! Normal high for 3/31 is the lower 50s. Earlier discussion below. ==============================================================

Dry air aloft advecting southward across the region from northern New England. Decreasing PWATs and K indices indicative of this very dry air aloft. Thus the trend will be toward decreasing clouds remainder of this morning and afternoon. Somewhat uncertain the extent and duration of sunshine today as chilly temps aloft along with cyclonic flow may support clouds filling back in from time to time. However deepening dry layer aloft will likely result in more sun than clouds. The exception will be over Cape Cod and the Islands where clouds will be slower to depart.

Despite the sunshine it's a chilly airmass advecting in from the northeast with 925 mb lowering to about -5C! Not as cold aloft westward with CT River Valley around 0C at 925 mb. This will support temps 45-50 western CT/MA to only about 40 in eastern coastal MA, about 5-10 degs cooler than normal. NNE breeze will also add to the cool conditions.

SHORT TERM /7 PM THIS EVENING THROUGH 6 PM WEDNESDAY/. Tonight .

Upper low retrogrades back across New Eng as potent shortwave and coastal storm moves off NC coast. SNE within a minimum in deep layer moisture with higher moisture to the north and south. Dry weather expected with partly cloudy skies, but lower clouds will likely back in across eastern New Eng during the night. Lows generally in the mid/upper 20s, except holding in the lower 30s east coastal MA and Cape/Islands where lower clouds more likely.

Wednesday .

Deepening ocean storm tracks well south and east of the 40N/70W benchmark as upper low persists across New Eng. This storm will result in increasing N winds over the Cape/Islands in the afternoon with gusts 25-35 mph developing. Mainly dry weather continuing but cant rule out a few showers backing across the Cape/Islands late in the day. Cross sections suggest low clouds may impact the coastal plain, especially south and east of BOS- PVD with most sunshine across CT valley. Low level temps moderate so it should be a few degrees milder, but still below normal with highs mostly in the 40s to around 50 in the CT valley.

LONG TERM /WEDNESDAY NIGHT THROUGH MONDAY/. Highlights .

* Gusty onshore winds will bring periods of rain and cool temperatures Thu and Thu night

* Conditions improve Friday, but temperatures remain cool with lingering clouds

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

* Dry and seasonal conditions Monday

Details .

Wednesday night through Thursday night .

With continued mid level blocking pattern in place across North America, will see cutoff H5 low pressure spinning across the northeast into the western Atlc Wed night and Thu. This will also keep a cool onshore flow in place as well. In the meantime, a surface low moves off the mid Atlc coast. With a strong high across central Quebec and the deepening low pressure to the S, the tightening pressure gradient will result in increasing N-NE winds Wed night and Thu with gusts up to 20-30 kt along the immediate E coast and possibly up to 35 kt at times across portions of Cape Cod, Nantucket and Martha's Vineyard.

Most of the 00Z model guidance also signaling an area moisture wrapping around the low as it moves across the western Atlc. Will see an area of rain moves westward into E coastal areas Thu morning, then shifting W during the day. Temps inland may be cool enough for the precip to start as light snow or a mix early Thu morning, but should not last long. With the steady onshore flow, could see QPF amounts from 0.25 to 0.5 inches across central and eastern areas, with lower amounts further W. Should see the precip start to push S and weaken around or after midnight Thu night.

Friday .

A few showers may linger across central and southern areas early Friday, but should shift off the S coast by midday. However, clouds will continue to linger across the region on N-NE winds. May see another surge of higher winds along E coastal areas Friday morning through midday, with gusts up to 25-30 kt and possibly up to around 35 kt across Cape Cod and the islands. With the continued onshore flow in place, temps will remain cooler than seasonal normals with highs in the mid-upper 40s along the immediate coast and higher terrain to the lower 50s across the CT valley.

Winds will diminish Fri night but will remain onshore so could see a few isolated showers lingering across Cape Cod and the islands. Otherwise, will be a dry but chilly night with lows in the 30s.

Saturday and Sunday .

High pressure ridge finally pushes E as the steering flow starts to move systems along the northern stream. Clouds will linger early Saturday especially along the coast, but drier air finally brings some sun in from N-S during the day. Temps will be a bit milder away from the immediate E coast, but will remain chilly along the shoreline with a stubborn northerly wind flow.

Rather low confidence for weather conditions on Sunday due to wide model solution spread. Another weak mid level trough moves across the region, which could mean clouds and possibly some spotty showers Sunday afternoon into Sunday night as a weak cold front approaches. Have mentioned only slight chance POPs at this point. Temps should be close to seasonal normals.

Monday .

The cold front moves offshore Monday morning. At this point, should see dry conditions and seasonable temperatures.

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 and evening/overnight . high confidence on trends lower on exacting timing.

Dry weather with MVFR conditions over western- central MA and Cape Cod/Islands trending upward to VFR. Elsewhere VFR prevails. Modest NNE winds. Low prob MVFR may redevelop overnight across southeast MA.

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.

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

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

KBOS Terminal . high confidence in TAF thru tonight. Then uncertainty on arrival time of MVFR conditions Wed/Wed Evening.

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

Outlook /Thursday through Saturday/ .

Thursday: Mainly MVFR, with local VFR possible. Windy with gusts up to 35 kt. Chance RA, SHRA likely.

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

Friday: Mainly MVFR, with local VFR possible. Windy with gusts up to 35 kt. Slight chance SHRA.

Friday Night: Mainly VFR, with areas MVFR possible. Windy with areas of gusts up to 30 kt.

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

MARINE. N/NE winds gradually diminishing through the morning with gusts dropping below 25 kt, and at or below 20 kt into tonight. But hazardous seas 7-10 ft over eastern MA waters slowly subsiding late today and tonight. SCA continues over open waters.

Increasing N winds during Wed with gusts to 25-30 kt developing in the afternoon, strongest south and east of ACK. Seas building again eastern waters.

Outlook /Wednesday Night through Saturday/ .

Wednesday Night: Low risk for gale force winds with gusts up to 35 kt. Areas of rough seas. Chance of rain showers.

Thursday: Low risk for gale force winds with gusts up to 35 kt. Areas of rough seas. Chance of rain, rain showers.

Thursday Night: Low risk for gale force winds with gusts up to 40 kt. Rough seas up to 16 ft. Rain showers likely.

Friday: Low risk for gale force winds with gusts up to 35 kt. Rough seas up to 17 ft. Slight chance of rain showers.

Friday Night: Moderate risk for Small Craft Advisory winds with gusts up to 30 kt. Rough seas up to 17 ft. Slight chance of rain showers.

Saturday: Winds less than 25 kt. Rough seas up to 14 ft.

BOX WATCHES/WARNINGS/ADVISORIES. CT . None. MA . None. RI . None. MARINE . Small Craft Advisory until 2 PM EDT this afternoon for ANZ231. Small Craft Advisory until 8 PM EDT Wednesday for ANZ250-251- 254>256.

SYNOPSIS . KJC/EVT NEAR TERM . KJC/Nocera/EVT SHORT TERM . KJC LONG TERM . EVT AVIATION . KJC/Nocera/EVT MARINE . KJC/EVT


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
WAXM3 - Waquoit Bay Reserve, MA 8 mi76 min NNW 4.1 38°F 1017 hPa28°F
BZBM3 - 8447930 - Woods Hole, MA 11 mi61 min 38°F 44°F1016.9 hPa (-0.0)
44090 19 mi31 min 43°F3 ft
44020 - NANTUCKET SOUND 22 mi81 min 2 ft
FRVM3 - 8447386 - Fall River, MA 29 mi61 min 46°F 45°F1016.9 hPa (-0.3)
BUZM3 - Buzzards Bay, MA 29 mi61 min ENE 18 G 19 1017.2 hPa (+0.0)
BLTM3 - 8447387 - Borden Flats Light at Fall River, MA 29 mi61 min NE 9.9 G 12 45°F 1016.7 hPa (-0.3)
FRXM3 30 mi61 min 43°F 26°F
PRUR1 37 mi61 min 43°F 27°F
NAXR1 - Narragansett Bay Reserve, RI 38 mi76 min ENE 6 47°F 1017 hPa29°F
PTCR1 - 8452951 - Potter Cove, Prudence Island, RI 38 mi61 min E 8.9 G 12 44°F 1017 hPa (-0.6)
CPTR1 - 8452944 - Conimicut Light, RI 39 mi61 min E 7 G 12 42°F 46°F1016.4 hPa (-0.7)
NTKM3 - 8449130 - Nantucket Island, MA 39 mi61 min NNE 9.9 G 13 39°F 45°F1016.8 hPa (+0.3)
NWPR1 - 8452660 - Newport, RI 39 mi61 min NNE 6 G 12 43°F 39°F1016.3 hPa (-0.7)
PVDR1 41 mi61 min NE 5.1 G 9.9 46°F 1016.6 hPa (-0.6)27°F
FOXR1 - 8454000 - Providence, RI 42 mi61 min E 2.9 G 8 44°F 43°F1016.4 hPa (-0.7)
QPTR1 - 8454049 - Quonset Point, RI 42 mi61 min NE 11 G 12 42°F 46°F1016.5 hPa (-0.9)
44018 - SE Cape Cod 30NM East of Nantucket, MA 44 mi71 min N 14 G 18 35°F 9 ft1016.9 hPa (-0.0)25°F
44013 - BOSTON 16 NM East of Boston, MA 46 mi71 min NE 12 G 14 35°F 43°F7 ft1016.7 hPa (-0.5)27°F

Wind History for Borden Flats Light at Fall River, MA
(wind in knots)    EDIT      (on/off)   Help
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Otis Air National Guard Base, MA5 mi66 minNNE 1110.00 miOvercast37°F28°F70%1016.9 hPa
Plymouth, Plymouth Municipal Airport, MA17 mi69 minNE 12 G 1610.00 miOvercast38°F26°F62%1017 hPa
Hyannis, Barnstable Municipal-Boardman Airport, MA18 mi65 minN 8 G 1510.00 miOvercast39°F27°F62%1016.2 hPa
New Bedford, New Bedford Regional Airport, MA19 mi68 minENE 610.00 miMostly Cloudy41°F27°F57%1016.8 hPa
Marthas Vineyard Airport, MA19 mi68 minN 1310.00 miOvercast40°F28°F63%1016.6 hPa

Link to 5 minute data for KFMH

Wind History from FMH (wind in knots)
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Last 24hrNE15NE17--N15NE11
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1 day agoE18
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2 days agoS12S7S7S7SE3SE5SE5SE5E5E5E5E5------E12
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Tide / Current Tables for Barlows Landing, Pocasset Harbor, Buzzards Bay, Massachusetts
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Barlows Landing
Click for Map
Tue -- 01:19 AM EDT     Moonset
Tue -- 01:33 AM EDT     3.59 feet High Tide
Tue -- 06:26 AM EDT     Sunrise
Tue -- 06:51 AM EDT     0.41 feet Low Tide
Tue -- 10:42 AM EDT     Moonrise
Tue -- 02:07 PM EDT     2.93 feet High Tide
Tue -- 06:59 PM EDT     0.40 feet Low Tide
Tue -- 07:07 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.23.53.53.12.21.30.60.40.71.11.622.42.72.92.82.21.30.70.40.61.11.72.2

Tide / Current Tables for Cape Cod Canal, Massachusetts Current
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Cape Cod Canal
Click for Map
Tue -- 01:19 AM EDT     Moonset
Tue -- 02:41 AM EDT     -0.02 knots Slack
Tue -- 06:00 AM EDT     -3.92 knots Max Ebb
Tue -- 06:26 AM EDT     Sunrise
Tue -- 08:53 AM EDT     0.17 knots Slack
Tue -- 10:41 AM EDT     Moonrise
Tue -- 11:56 AM EDT     3.76 knots Max Flood
Tue -- 03:34 PM EDT     -0.15 knots Slack
Tue -- 06:32 PM EDT     -3.68 knots Max Ebb
Tue -- 07:07 PM EDT     Sunset
Tue -- 09:23 PM EDT     0.16 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.531.9-1.3-2.8-3.6-3.9-3.6-2.60.92.83.53.83.52.81.8-1.6-2.9-3.6-3.6-3-1.623

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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Wind Forecast for Boston, MA (16,3,4,5)
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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.