Monday, March30, 2020
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Marine Weather and Tides
Quincy, 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 6:27AMSunset 7:09PM Monday March 30, 2020 4:16 PM EDT (20:16 UTC) Moonrise 9:57AMMoonset 12:21AM Illumination 42% Phase: First Quarter Moon; Moon at 7 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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ANZ230 Boston Harbor- 116 Pm Edt Mon Mar 30 2020
.small craft advisory in effect from 5 pm edt this afternoon through Tuesday afternoon...
This afternoon..NE winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to 3 ft, except 4 to 6 ft at the outer harbor entrance. Patchy fog. A chance of showers.
Tonight..NE winds 10 to 15 kt with gusts up to 30 kt. Waves 2 to 3 ft, except 4 to 6 ft at the outer harbor entrance. Showers likely with a chance of snow showers. Vsby 1 to 3 nm.
Tue..NE winds 10 to 15 kt with gusts up to 25 kt. Waves 2 to 3 ft, except 4 to 7 ft at the outer harbor entrance.
Tue night..N winds 5 to 10 kt. Waves 2 to 3 ft.
Wed..N winds 5 to 10 kt with gusts up to 25 kt. Waves around 2 ft, except 3 to 5 ft at the outer harbor entrance.
Wed night..N winds 5 to 10 kt with gusts up to 20 kt. Waves around 2 ft, except 3 to 5 ft at the outer harbor entrance. A chance of showers.
Thu and Thu night..N winds 10 to 15 kt with gusts up to 25 kt. Waves around 2 ft, except 3 to 5 ft at the outer harbor entrance. Showers likely.
Fri..NE winds 10 to 15 kt with gusts up to 30 kt. Waves around 2 ft, except 4 to 7 ft at the outer harbor entrance. A chance of showers.
Fri night..NE winds around 10 kt with gusts up to 25 kt. Waves around 2 ft, except 5 to 8 ft at the outer harbor entrance. 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 Mon Mar 30 2020
Synopsis for massachusetts and rhode island coastal waters.. Low pres east of the water today will move away from the waters Tue. This will be followed by a stronger low pres system Wed that will meander east of the waters Thu into Fri. The result will be persistent nne wind gusts of 20 to 30 knots and rough seas, especially by Thu and Fri. 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 Quincy, MA
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location: 42.27, -70.96     debug


Area Discussion for - Boston, MA
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FXUS61 KBOX 302000 AFDBOX

Area Forecast Discussion National Weather Service Boston/Norton MA 400 PM EDT Mon Mar 30 2020

SYNOPSIS. Cool wet weather continues. Closed upper low pressure lingers over New England tonight through midweek. This brings rain showers and possible snow showers tonight. Cloud cover gradually diminishes on Tuesday. An ocean storm will bring rather cool temperatures through Friday, especially across eastern Massachusetts. While most of Wednesday should be dry, a period of showers are likely sometime Thursday into Friday especially across eastern New England. Temperatures will moderate a bit by this weekend.

NEAR TERM /UNTIL 6 AM TUESDAY MORNING/. Upper low pressure and cold pool moves over New England this evening and tonight. The cold air aloft advecting into the region will destabilize the airmass, generating showers that are initially rain, but change to snow showers during the night as the colder air moves in. Good agreement among the operational models, so a blend was used.

Precipitation will be limited. PW values near 0.5 inches will be trending even drier overnight. Most snow accumulations will be found in the central and western hills, with amounts on the low side of an inch. Note that Totals are in the upper 40s to low 50s during the evening, which could generate some lightning. But other indices are unfavorable. Will mention isolated thunder, mainly along the East Slopes and CT Valley.

Expect a north-northeast wind with enough of a gradient along the Massachusetts coast to bring wind gusts near 25 kt later tonight.

Dew points drop back to 25-35, which would allow morning min temps in the upper 20s to mid 30s.

SHORT TERM /6 AM TUESDAY MORNING THROUGH TUESDAY NIGHT/. Closed upper low and its associated cold pool aloft linger over the region. Showers linger first thing in the morning. But then drier air works in from the north during Tuesday afternoon and night. This will bring partial clearing starting Tuesday afternoon and broadening Tuesday night.

Afternoon mixing reaches to 900 mb, with temperatures of minus 1C to plus 3C, supporting temperatures from around 40F through the 40s. Dew points at night will dip to the mid 20s to low 30s, allowing Tuesday night min temps of 25 to 35.

LONG TERM /WEDNESDAY THROUGH MONDAY/. Highlights .

* Below normal temperatures continue Wed through Fri, particularly across eastern MA

* A period of showers expected sometime Thu into Fri, especially across eastern MA

* Temperatures moderate a bit this weekend

Details .

Wednesday through Friday .

A classic upstream blocking pattern /-NAO/ will persist Wednesday through Friday. The location of this block should steer a low pressure moving north for the Gulf coast well out to sea before it reaches our latitude. However, still expecting a mid level low to be lingering between the Great Lakes and New England. This will likely result in an inverted trough, which in turn generates some rain sometime Thursday into Friday, especially across eastern MA. Low risk that a few wet snow flakes are mixed in briefly, but boundary layer looks mild so expecting mainly rain showers.

With the pattern nor changing much, neither should temperatures. Expecting slightly below normal high temperatures each day, with near to slightly below normal low temperatures.

Next Weekend .

High pressure to our north should finally kick this ocean storm farther out to sea. The mid level cutoff low should also depart as the blocking pattern breaks down. Dry weather should dominate much of the time with temperatures rising above normal. A cold front may bring some showers to our region sometime Sunday into Sunday night, but it will not be a washout.

Monday .

Mainly dry weather behind a cold front with above normal temperatures continuing.

AVIATION /20Z MONDAY THROUGH SATURDAY/. Forecaster Confidence Levels .

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

This evening/Tonight . Moderate-High confidence

Upper disturbance moves over Southern New England, bringing showers initially of rain, then later as snow. Moisture is limited, so rain and snow amounts will also be limited. Some isolated thunder is possible along the East Slopes of the Berkshires and in the CT Valley, but confidence is low.

Ceilings mainly IFR with areas of MVFR possible. Vsbys generally 2-4 miles in rain and snow showers. Gusty northeast winds reaching 25 kt along coastal Massachusetts during the night.

Tuesday . High confidence

Morning MVFR cigs/vsbys improve quickly to VFR. Lingering northeast wind gusts on Cape Cod and Islands in the morning will diminish by afternoon.

Tuesday night . High confidence .

VFR most areas. Lingering MVFR ceilings possible on Cape Cod and Islands.

KBOS Terminal . Moderate to high confidence in the TAF.

KBDL Terminal . Moderate to high confidence in the TAF.

Outlook /Wednesday through Saturday/ .

Wednesday: VFR. Breezy.

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

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

Thursday Night: Mainly MVFR, with local IFR possible. Breezy. Chance SHRA.

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

Friday Night: Mainly VFR, with areas MVFR possible. Breezy.

Saturday: VFR. Breezy.

MARINE. Upper low pressure hovers over or near the waters tonight through Tuesday night. This will bring rain showers much of tonight, ending Tuesday morning. Drier air moves in from the north Tuesday afternoon and night, although clouds may linger on the eastern Massachusetts waters.

North-northeast winds tonight and Tuesday with gusts initially 25 to 30 kt, diminishing Tuesday afternoon and night. Seas 5 to 10 feet tonight and Tuesday, subsiding to 5 to 6 feet Tuesday night.

Small Craft Advisory will be in effect for most waters.

Outlook /Wednesday through Saturday/ .

Wednesday: Winds less than 25 kt. Seas up to 5 ft.

Wednesday Night: Winds less than 25 kt. Areas of rough seas. Slight chance of rain showers.

Thursday: Low risk for Small Craft Advisory winds with gusts up to 25 kt. Areas of rough seas. Chance of rain showers.

Thursday Night: Moderate risk for Small Craft Advisory winds with gusts up to 30 kt. Rough seas up to 14 ft. Chance of rain showers.

Friday: Strong winds with gusts up to 30 kt. Rough seas up to 17 ft.

Friday Night: Low risk for Small Craft Advisory winds with gusts up to 25 kt. Rough seas up to 16 ft.

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 from 8 PM this evening to 8 PM EDT Tuesday for ANZ232>234. Small Craft Advisory until 5 PM EDT Tuesday for ANZ230. Small Craft Advisory until 10 PM EDT Tuesday for ANZ231. Small Craft Advisory from 2 AM to 4 PM EDT Tuesday for ANZ235- 237. Small Craft Advisory until 8 AM EDT Wednesday for ANZ250-251- 254>256.

SYNOPSIS . WTB/Belk NEAR TERM . WTB SHORT TERM . WTB LONG TERM . Belk AVIATION . Belk MARINE . WTB/Belk


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
BHBM3 - 8443970 - Boston, MA 8 mi52 min 40°F 43°F1013.4 hPa
44013 - BOSTON 16 NM East of Boston, MA 17 mi86 min NE 16 G 19 41°F 43°F10 ft1013.2 hPa (-1.2)41°F
44029 - Buoy A0102 - Mass. Bay/Stellwagen 27 mi72 min ENE 18 G 19 40°F 42°F11 ft1012.1 hPa
FOXR1 - 8454000 - Providence, RI 40 mi46 min ENE 13 G 16 1013.5 hPa
PVDR1 40 mi46 min NNE 9.9 G 15 44°F 1013.6 hPa38°F
BLTM3 - 8447387 - Borden Flats Light at Fall River, MA 41 mi46 min N 12 G 15 44°F 1013.1 hPa
FRVM3 - 8447386 - Fall River, MA 41 mi46 min 44°F 45°F1013.4 hPa
FRXM3 41 mi46 min 44°F 39°F
CPTR1 - 8452944 - Conimicut Light, RI 43 mi46 min N 16 G 18 43°F 46°F1013.2 hPa
44018 - SE Cape Cod 30NM East of Nantucket, MA 44 mi86 min NE 18 G 23 39°F 10 ft1012.6 hPa (-1.4)37°F
44090 45 mi46 min 42°F3 ft
NAXR1 - Narragansett Bay Reserve, RI 48 mi91 min NE 14 45°F 1013 hPa40°F
PTCR1 - 8452951 - Potter Cove, Prudence Island, RI 48 mi46 min NNE 11 G 14 44°F 1013.6 hPa
PRUR1 49 mi46 min 44°F 40°F

Wind History for Providence, RI
(wind in knots)    EDIT      (on/off)   Help
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Boston, Logan International Airport, MA8 mi22 minNE 132.00 miLight Drizzle Fog/Mist40°F37°F93%1014.7 hPa
East Milton, MA9 mi25 minNE 10 G 20 mi38°F37°F97%1014.7 hPa
Norwood, Norwood Memorial Airport, MA12 mi23 minNE 10 G 177.00 miOvercast42°F37°F82%1014.2 hPa
Marshfield Airport, MA19 mi41 minNE 1110.00 miOvercast43°F41°F93%1013.5 hPa
Beverly, Beverly Municipal Airport, MA22 mi23 minNE 9 G 151.00 miFog/Mist40°F37°F89%1014.3 hPa
Laurence G Hanscom Field Airport, MA22 mi25 minNE 148.00 miLight Rain Fog/Mist42°F36°F79%1015.9 hPa

Link to 5 minute data for KBOS

Wind History from BOS (wind in knots)
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Last 24hrE18E17E17E16E14NE14
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N15N13N14N13NE12NE14NE12NE15NE14NE16NE11NE13NE15NE13
1 day agoNE5CalmS11S11S7SE4SE6SE6E5E10E7E10E11E10E9--E13E12E19E12SE7E18E18E17
2 days agoNW15
G23
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N11N7N6N8NW8NW5NW7NW7NW9NW7N4NW3CalmCalmCalmSE4E7E7E8E9E9E7

Tide / Current Tables for Nut Island, Massachusetts
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Nut Island
Click for Map
Mon -- 12:21 AM EDT     Moonset
Mon -- 03:55 AM EDT     9.16 feet High Tide
Mon -- 06:28 AM EDT     Sunrise
Mon -- 09:56 AM EDT     Moonrise
Mon -- 10:15 AM EDT     0.74 feet Low Tide
Mon -- 04:31 PM EDT     8.20 feet High Tide
Mon -- 07:08 PM EDT     Sunset
Mon -- 10:28 PM EDT     1.54 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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4.15.97.58.79.28.575.13.21.60.81.12.44.15.77.18.18.17.25.642.61.71.7

Tide / Current Tables for Boston Harbor, Massachusetts Current
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Boston Harbor
Click for Map
Mon -- 12:22 AM EDT     Moonset
Mon -- 03:25 AM EDT     -0.00 knots Slack
Mon -- 06:26 AM EDT     -1.07 knots Max Ebb
Mon -- 06:28 AM EDT     Sunrise
Mon -- 09:56 AM EDT     Moonrise
Mon -- 10:23 AM EDT     0.00 knots Slack
Mon -- 12:23 PM EDT     1.12 knots Max Flood
Mon -- 03:53 PM EDT     -0.00 knots Slack
Mon -- 06:40 PM EDT     -0.90 knots Max Ebb
Mon -- 07:08 PM EDT     Sunset
Mon -- 10:35 PM EDT     0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.21.10.80.3-0.4-0.9-1.1-1-0.9-0.7-0.30.51.110.80.5-0.1-0.6-0.9-0.9-0.8-0.6-0.30.3

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 (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.