Saturday, October19, 2019 L-36.com


Marine Weather and Tides
Quincy, MA

Version 3.4
NOTICE
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.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 6:59AMSunset 5:58PM Saturday October 19, 2019 4:30 PM EDT (20:30 UTC) Moonrise 9:58PMMoonset 12:34PM Illumination 64% Phase: Waning Gibbous; Moon at 21 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 Sat Oct 19 2019
This afternoon..NW winds around 5 kt. Waves 1 foot or less.
Tonight..N winds around 5 kt. Waves 1 foot or less.
Sun..NE winds around 5 kt, becoming se in the afternoon. Waves 1 foot or less.
Sun night..E winds 5 to 10 kt. Waves 1 foot or less.
Mon..NE winds 5 to 10 kt. Waves 1 foot or less.
Mon night..NE winds 5 to 10 kt. Waves 1 foot or less, except 3 to 4 ft at the outer harbor entrance.
Tue..E winds 5 to 10 kt. Waves 2 to 3 ft. A chance of showers.
Tue night..SE winds 5 to 10 kt. Waves around 2 ft. Showers likely. Patchy fog after midnight. Vsby 1 to 3 nm.
Wed..W winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft. A chance of showers in the morning.
Wed night..W winds around 10 kt. Waves around 2 ft in the evening, then 1 foot or less. 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 Sat Oct 19 2019
Synopsis for massachusetts and rhode island coastal waters.. NW gradient persists along the E waters through this afternoon as gradually high pressure builds into the region. Exiting out ahead of nestor remnants which will sweep well S of new england around Sunday night, an accompanying breezy E wind is expected along with the possibility of rain. Blustery sw flow along with rain forecast ahead of a sweeping cold front around Tuesday night. High pressure and dry weather follows for the rest of the 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 Quincy, MA
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location: 42.27, -70.96     debug


Area Discussion for - Boston, MA
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Fxus61 kbox 192002
afdbox
area forecast discussion
national weather service boston norton ma
402 pm edt Sat oct 19 2019

Synopsis
High pressure and seasonable conditions through Sunday. Nestor
remnants tracking S of new england with the uncertain risk of
rain around Sunday night. High pressure builds in with dry weather
Monday, then a sweeping cold front will bring a period of showers
Tuesday afternoon into early Wednesday. High pressure follows late
in the week with seasonably mild temperatures and dry weather.

Another storm system may impact the region by Saturday but there is
much uncertainty.

Near term until 6 am Sunday morning
230 pm update...

a beautiful autumn day. Winds diminishing, comfortable conditions,
seasonable temperatures. Getting close to 60 in spots. Abundant
sunshine probably making it feel warmer. High pressure in control.

Tonight...

chilly, frosty. With high pressure, light winds, clear conditions,
it is a tad warmer today compared to yesterday, including dewpoints,
and it is a bit warmer aloft, the crux of colder air having pushed
off to the e. Thus leaning with persistence in the low temperature
forecast. Going with lows from the prior night but bumped them up
a couple of degrees. It's not perfect but feel it will be close to
actual. With the forecast no frost freeze headlines are required.

Short term 6 am Sunday morning through Sunday night
Sunday into Sunday night...

challenging rainfall forecast. Nestor remnants preceding weak h5-7
shortwave energy. An evaluation of frontogenesis, deformation, and
low-level moisture thetae, there's a n-draw along and around 300k
isentropic surfaces prior to mid-level synoptics and accompanying
trof axis. Squeeze out, the potential for mid-level outcomes.

However, heights rising out ahead of the n-plains cyclone across the
ne conus, strengthening surface high pressure, enhancing the wedge
of low-level drier air across the SE canadian maritimes brought by
the isallobaric wind component. NE flow undercutting over-running
mid-level outcomes. Two subsequent thoughts: 1.) nestor is nudged
further S to which latest 19.12z guidance has agreed upon despite
the disparity between global and high-res forecast guidance, and 2.)
that any outcomes, wherever they originate, may have difficulty in
getting to the surface, eroding before reaching the ground (virga).

Continued n-s spread of rainfall forecasts between model guidance
and individual ensemble members. For this forecast, will keep the
majority of pops (chance or greater) S of the ma-pike and reserve
likely pops for just nantucket and the waters s. Collaboration with
the nerfc, not going to go with the completely dry forecast. Prefer
to trend southward but allow later shifts to re-evaluate and make
adjustments as necessary. Avoiding a flip-flop given both the spread
and uncertain rainfall risk. Don't want to say completely dry only
to have to re-introduce rain later. Confidence is lacking. Light
rain thinking, not a wash-out.

Watching the undercutting E NE wind. With a nudge of nestor further
s, the stronger gradient should lie immediately offshore. Still
breezy for the s-coast, but the gales well out over the S waters.

Increasing clouds through the day. A bit mild tonight. Looking at
highs around the upper 50s to low 60s, lows into the 40s Sunday
night with the possible of quick cooling as clouds clear over N w
ma towards Monday morning.

Long term Monday through Saturday
Highlights...

* mainly dry and seasonable mon
* patchy drizzle Tue morning, then a period of showers late Tue into
early wed
* improving conditions Wed afternoon then dry and seasonably mild
thu fri
Monday...

remnants of nestor south of the benchmark and drifts eastward as
surface ridging in place across new eng. Deep moisture mostly
offshore by Mon morning so only a low risk of a lingering shower
over ack early, otherwise expect a mostly sunny day as column is
rather dry. Highs should reach low mid 60s with NE flow, which may
be gusty over the islands.

Tuesday into Wednesday...

persistent NE flow into Tuesday will result in considerable low
level moisture developing later Mon night onward with low clouds
overspreading the region by Tue morning. Models are indicating some
light QPF which will likely be in the form of drizzle given dry air
in the mid levels. By later Tue and especially Tue night moisture
deepens ahead of mid level shortwave and approaching cold front.

Expect a band of showers sweeping through sne late Tue into tue
night with potential for some heavier rain elements as higher pwats
advect into region with frontal wave possibly developing which would
enhance low level convergence. Model guidance differs on timing of
the front which will impact how quickly it clears out on wed. Ecmwf
is slower with showers lingering into Wed morning, especially
eastern new eng while GFS is more progressive. Leaning toward slower
solution given consensus of global guidance but expect improving
conditions during Wed with increasing sunshine developing from west
to east with seasonable temps.

Thursday into Saturday...

high pres in control south of new eng Thu with dry weather and mild
temps, possibly well into the 60s. Then forecast confidence
decreases Fri into Sat as models show significant differences on
evolution and timing of next upstream trough. Complex pattern with
possible interaction of multiple shortwaves. Dry weather should hang
on for Fri with seasonably mild temps, then low confidence into sat.

Gfs is wet Fri night Sat while ECMWF is dry with rain delayed until
sun. Have chance pops for Fri night into Sat given eps indicating
moderate QPF probs.

Aviation 20z Saturday through Thursday
Forecaster confidence levels...

low - less than 30 percent.

Moderate - 30 to 60 percent.

High - greater than 60 percent.

Short term through Sunday night ...

18z update...

rest of today... High confidence.

Vfr. Skc. NW winds continuing to diminish.

Tonight... High confidence.

Vfr. Increasing high cloud towards morning. NW gradient slackens.

Winds overall light and vrb.

Sunday into Sunday night... Moderate confidence.

Vfr. Increasing clouds lowering to low-endVFR 4-6 kft agl S of
the ma-pike towards 0z Monday through 12z. MVFR possible along
the s-coast, CAPE and islands. An increasing E wind approaching
10 to 15 kts along the s-coast as nestor sweeps by. Will keep
the forecast dry through 18z Sunday and then introduce the chance
of -ra S of the ma-pike through 12z Monday, likely -ra for ack
around 6z Monday.

Kbos terminal...

high confidence in taf.

Kbdl terminal...

high confidence in taf.

Outlook Monday through Thursday ... Moderate confidence.

Monday:VFR. Breezy.

Monday night: mainlyVFR, with local MVFR possible. Breezy.

Tuesday: mainly MVFR, with areas ifr possible. Breezy. Chance
shra.

Tuesday night: mainly MVFR, with local ifr possible. Breezy.

Chance shra.

Wednesday: mainlyVFR, with local MVFR possible. Breezy. Slight
chance shra.

Wednesday night through Thursday:VFR. Breezy.

Marine
Forecaster confidence levels...

low - less than 30 percent.

Moderate - 30 to 60 percent.

High - greater than 60 percent.

Short term through Sunday night ...

230 pm update...

rest of today... High confidence.

Nw gradient winds continuing to diminish. Around 5 to 10 kts at
this point, becoming variable, some immediate shore sea-breezes
have emerged along E ma coast. However, a decent W wind has
emerged along the s-coast around 10 to 15 kts. It too should
diminish towards evening with building high pressure. Seas less
than 5 feet. Clear conditions. Dry.

Tonight... High confidence.

Light winds around 5 to 10 kts diminishing to variable. Seas
less than 5 feet. Clear conditions. Dry.

Sunday into Sunday night... Moderate confidence.

Majority of wind and wave impacts over the S SE waters.

Light winds initially increasing out of the E to around 10 to 15
kts especially over the S SE waters as remnants of nestor approach,
15 to 20 kts with gusts up to 30 kts overnight into Monday morning.

Will keep waves below 5 feet even on the S waters mostly throughout,
increasing up to around by Monday morning for the S outer waters.

Chance to likely light rain during the overnight hours for the s
waters, however some uncertainty in the n-s gradient given nestor's
track.

Outlook Monday through Thursday ... Moderate confidence.

Monday: low risk for small craft advisory winds with gusts up
to 25 kt. Local rough seas.

Monday night: winds less than 25 kt. Areas of rough seas.

Slight chance of rain showers.

Tuesday: winds less than 25 kt. Rough seas up to 8 ft. Chance
of rain showers.

Tuesday night: winds less than 25 kt. Rough seas up to 8 ft.

Rain showers.

Wednesday: low risk for small craft advisory winds with gusts
up to 25 kt. Areas of rough seas. Slight chance of rain
showers.

Wednesday night through Thursday: winds less than 25 kt. Seas
up to 5 ft.

Box watches warnings advisories
Ct... None.

Ma... None.

Ri... None.

Marine... None.

Synopsis... Kjc sipprell
near term... Sipprell
short term... Sipprell
long term... Kjc
aviation... Kjc sipprell
marine... Kjc sipprell


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
BHBM3 - 8443970 - Boston, MA 8 mi48 min 58°F 56°F1014 hPa
44013 - BOSTON 16 NM East of Boston, MA 17 mi40 min SW 5.8 G 7.8 55°F 57°F1 ft1014.2 hPa (-1.0)39°F
44029 - Buoy A0102 - Mass. Bay/Stellwagen 27 mi86 min SW 12 G 14 53°F 56°F1 ft1014.1 hPa
FOXR1 - 8454000 - Providence, RI 40 mi42 min WSW 5.1 G 8.9 60°F 58°F1015.5 hPa
PVDR1 40 mi42 min SW 6 G 8.9 59°F 1015.7 hPa35°F
BLTM3 - 8447387 - Borden Flats Light at Fall River, MA 41 mi42 min SSW 6 G 8 56°F 1015.7 hPa
FRVM3 - 8447386 - Fall River, MA 41 mi48 min 58°F 58°F1016.1 hPa
FRXM3 41 mi48 min 57°F 36°F
CPTR1 - 8452944 - Conimicut Light, RI 43 mi42 min SSW 2.9 G 6 58°F 59°F1015.5 hPa
44018 - SE Cape Cod 30NM East of Nantucket, MA 44 mi40 min SW 3.9 G 3.9 51°F 1 ft1015.5 hPa (-0.3)36°F
44090 45 mi30 min 57°F1 ft
NAXR1 - Narragansett Bay Reserve, RI 48 mi105 min SW 1.9 59°F 1016 hPa38°F
PTCR1 - 8452951 - Potter Cove, Prudence Island, RI 48 mi42 min SSW 1.9 G 4.1 58°F 1016.3 hPa
PRUR1 49 mi42 min 56°F 44°F

Wind History for Providence, RI
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Boston, Logan International Airport, MA8 mi36 minWSW 610.00 miA Few Clouds61°F34°F36%1015 hPa
Norwood, Norwood Memorial Airport, MA12 mi37 minVar 510.00 miFair62°F34°F35%1015.1 hPa
Marshfield Airport, MA19 mi35 minVar 410.00 miFair55°F41°F59%1015.2 hPa
Beverly, Beverly Municipal Airport, MA22 mi37 minVar 610.00 miFair59°F34°F39%1014.5 hPa
Laurence G Hanscom Field Airport, MA22 mi39 minW 710.00 miFair63°F34°F34%1016 hPa

Link to 5 minute data for KBOS

Wind History from BOS (wind in knots)
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NW10NW9W7W7W7W7W8NW8W8W8W9NW11NW11
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1 day agoW24
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2 days agoE18E14E15
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Tide / Current Tables for Nut Island, Massachusetts
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Nut Island
Click for Map
Sat -- 03:37 AM EDT     8.70 feet High Tide
Sat -- 07:01 AM EDT     Sunrise
Sat -- 09:35 AM EDT     1.28 feet Low Tide
Sat -- 12:34 PM EDT     Moonset
Sat -- 03:46 PM EDT     9.62 feet High Tide
Sat -- 05:55 PM EDT     Sunset
Sat -- 09:57 PM EDT     Moonrise
Sat -- 10:11 PM EDT     0.43 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.95.87.48.58.67.76.14.22.61.51.42.64.66.58.19.39.68.774.92.91.30.50.9

Tide / Current Tables for Boston Harbor, Massachusetts Current
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Boston Harbor
Click for Map
Sat -- 02:57 AM EDT     -0.00 knots Slack
Sat -- 05:46 AM EDT     -0.96 knots Max Ebb
Sat -- 07:01 AM EDT     Sunrise
Sat -- 09:40 AM EDT     0.00 knots Slack
Sat -- 11:48 AM EDT     1.26 knots Max Flood
Sat -- 12:35 PM EDT     Moonset
Sat -- 03:18 PM EDT     -0.00 knots Slack
Sat -- 05:55 PM EDT     Sunset
Sat -- 06:18 PM EDT     -1.09 knots Max Ebb
Sat -- 09:57 PM EDT     Moonrise
Sat -- 10:18 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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1.10.90.6-0-0.6-0.9-1-0.8-0.7-0.40.311.210.70.2-0.5-0.9-1.1-1-0.9-0.7-0.20.6

Weather Map
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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 numerious 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.