Saturday, August24, 2019 L-36.com


Marine Weather and Tides
Scituate, MA

Version 3.4
NOTICE
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 5:58AMSunset 7:32PM Saturday August 24, 2019 8:08 AM EDT (12:08 UTC) Moonrise 12:00AMMoonset 2:45PM Illumination 35% Phase: Waning Crescent; Moon at 24 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- 716 Am Edt Sat Aug 24 2019
Today..NE winds 5 to 10 kt. Waves 1 foot or less.
Tonight..NE winds 5 to 10 kt. Gusts up to 20 kt after midnight. Waves around 2 ft.
Sun..NE winds 10 to 15 kt with gusts up to 25 kt. Waves around 2 ft. A chance of showers.
Sun night..NE winds 5 to 10 kt. Gusts up to 20 kt in the evening. Waves around 2 ft.
Mon and Mon night..NE winds 5 to 10 kt. Waves around 2 ft.
Tue..E winds 5 to 10 kt. Waves 1 foot or less, except 2 to 4 ft at the outer harbor entrance.
Wed..E winds around 5 kt. Waves 1 foot or less, except 2 to 4 ft at the outer harbor entrance. A chance of showers. Vsby 1 to 3 nm.
Wed night..E winds around 5 kt. Waves 1 foot or less, except 2 to 4 ft at the outer harbor entrance. 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 716 Am Edt Sat Aug 24 2019
Synopsis for massachusetts and rhode island coastal waters.. High pressure over the great lakes will move to the maritimes by tonight. This will bring shifting winds, initially from the north shifting from the northeast and eventually from the east by midweek. A tropical depression may form off the coast of florida early next week. This system may track close enough to effect the coastal waters with elevated seas by mid 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 Scituate, MA
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location: 42.2, -70.73     debug


Area Discussion for - Boston, MA
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Fxus61 kbox 241125
afdbox
area forecast discussion
national weather service boston norton ma
725 am edt Sat aug 24 2019

Synopsis
High pressure from the great lakes will move across eastern
canada to the maritimes. This high will maintain dry conditions
over much of the region today, then bring low clouds, showers
and drizzle Sunday, especially across eastern massachusetts and
rhode island. The high lingers over the maritimes for Monday and
Tuesday with dry conditions and seasonably mild temperatures
for southern new england. A potential tropical system may
develop, tracking from the bahamas to well south of new england
around the middle of next week.

Near term until 6 pm this evening
715 am update...

noting some patchy fog, locally dense, across the SW nh into
western mass valleys as well as portions of the berkshires into
s vt on latest goes-east visible satellite imagery as well as
11z observations. This is rather shallow fog so it should burn
off by 14z, then mostly sunny skies will dominate across the
region as eastern edge of high pressure builds E this morning.

Updated near tern to bring conditions current.

Previous discussion...

high pressure centered north of the great lakes will build
across the northeast u.S. Today. This will bring dry air at the
surface and subsidence overall. At the same time, an upper
trough will move across southern new england with minor cold
advection at mid levels. This will try to destabilize the
airmass. Cross sections show a layer of 850 mb moisture with the
trough.

Put it together, it suggests fair weather with diurnal cumulus
but no showers. Temps at the top of the mixed layer, about 8c-9c,
would support MAX sfc temps in the 70s. Dew points in the upper
40s and 50s mean comfortable humidity levels. As the surface
high moves east across canada, the pressure gradient projects
north winds this morning turning from the northeast by midday or
early afternoon.

Short term 6 pm this evening through 6 pm Sunday
As the canadian high moves into the maritimes, the pressure
gradient continues to support northeast wind. The gradient is
low enough for relatively light winds in northern western
sections, but the northeast wind should increase in speed.

Expect winds to be trending stronger along the coasts and
especially along the south coast and islands tonight and Sunday.

Moisture advection off the gulf of maine will spread low clouds
over parts of southern new england late tonight and Sunday. With
limited lift, expect the clouds to produce drizzle and possible
a few light showers. The area most in line to be affected would
be eastern mass and ri and especially SE mass. The remainder of
southern new england should experience partly to mostly sunny
skies.

With skies partly to mostly clear tonight and dew points in the
50s, expect min temps generally in the 50s, with low 60s
possible where the wind is coming off the water. Temps aloft
Sunday will be similar to today, so afternoon potential will
again be in the 70s. Areas with more clouds and a wind off the
water, such as near the eastern ma coastline, may struggle to
cross 70 for a high temp.

Long term Sunday night through Friday
Highlights...

* cooler than normal temperatures early next week especially
across eastern massachusetts into rhode island
* onshore winds will bring spotty light rain or showers at
times into mid week
* temperatures return to near normal levels around mid week,
becoming warmer than normal by Friday
* another chance for showers late Wednesday through Thursday
details...

Sunday night through Tuesday...

the center of the large high to the N will slowly cross
southern quebec into the maritimes by early Sunday night. With
the long easterly fetch around the e-w elongated high, will see
temps below seasonal levels both Monday and Tuesday with the
coolest temps along the immediate E coast where readings may not
break 70 on Sunday and possibly even Monday.

The long fetch will also allow low level moisture to continue
to increase, so have kept slight chc pops across E mass into ri
through part of Monday before the winds diminish as the center
of the high tries to shift a bit further s. Chances for spotty
showers and possibly even some drizzle return on Tuesday.

Further inland, skies should be partly to mostly sunny.

The easterly winds may become gusty as the pressure gradient
increases around the southern section of the high from Monday
into Tuesday. May see gusts up to 20 to as high as 30 mph,
highest across CAPE cod and the islands.

Wednesday through Friday...

as the large high slowly exits to the western atlc, another
cold front begins to approach later wed, but will tend to stall
across E ny state as the potential tropical system passes well
se of nantucket around the late Wed night or Thu timeframe.

Light e-se winds should eventually shift to SE or even S as the
front approaches, but this will depend upon the timing of the
passing tropical system.

Will also see marginal instability as the front approaches, so
can not rule out isolated thunderstorms mainly from late wed
through thu. By thu, highs will reach up to the lower-mid 80s,
which will also assist in any developing convection. As the
potential tropical system exits to the western atlc, showers
should push offshore, but some question on the timing of this
front as model solution spread increases. At this point, have
kept slight chance pops going into Friday as yet another front
may approach in the fast flow aloft.

Aviation 11z Saturday through Wednesday
Forecaster confidence levels...

low - less than 30 percent.

Moderate - 30 to 60 percent.

High - greater than 60 percent.

Short term through Sunday ... Moderate confidence.

Through mid morning...VFR. N-nw winds under 10 kt.

Rest of today...VFR. N winds becoming ne. Dry weather
continues.

Tonight...VFR. Clouds spreading across the region from
massachusetts bay after midnight. Becoming MVFR in eastern ma
and ri after midnight. Light showers develop along the east ma
coast late. NE wind 10 kt with gusts near 20 kt CAPE cod and
islands.

Sunday...VFR, except MVFR CIGS vsbys in showers across ri and
eastern ma. NE wind continues.

Kbos terminal... High confidence in taf
kbdl terminal... High confidence in taf.

Outlook Sunday night through Wednesday ... Moderate to high
confidence.

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

Slight chance shra.

Monday through Tuesday:VFR. Breezy.

Tuesday night: mainlyVFR, with local ifr possible. Slight
chance shra, patchy br.

Wednesday: mainlyVFR, with areas MVFR possible. Slight chance
shra.

Marine
Forecaster confidence levels...

low - less than 30 percent.

Moderate - 30 to 60 percent.

High - greater than 60 percent.

Short term through Sunday ... High confidence.

Today...

large high pressure moves from ontario to quebec with modest
north-northwest winds turning from the northeast during the day.

Dry weather and good visibility.

Tonight...

the persisting northeast wind will bring low clouds and
fog drizzle over the waters, especially in areas south of
boston harbor. Scattered showers may lower vsby at times. A
building pressure gradient south of new england will bring gusts
around 25 kt to the southern waters, with winds progressively
lighter farther north. A small craft advisory will be issued for
these waters.

Sunday...

persistent northeast winds will continue to bring gusts of
25-30 kt to the southern waters. Seas in all areas will build,
with 5 foot seas developing on all outer waters.

Clouds fog drizzle scattered light rain showers will lower vsbys
at times, especially on the waters south of boston harbor.

Outlook Sunday night through Wednesday ... Moderate confidence.

Sunday night through Monday: low risk for small craft advisory
winds with gusts up to 25 kt. Seas up to 5 ft. Slight chance of
rain showers.

Monday night: winds less than 25 kt. Seas up to 5 ft.

Tuesday through Tuesday night: winds less than 25 kt. Seas up
to 5 ft. Slight chance of rain showers.

Wednesday: winds less than 25 kt. Seas up to 5 ft. Slight
chance of rain showers, isolated thunderstorms.

Box watches warnings advisories
Ct... None.

Ma... None.

Ri... None.

Marine... Small craft advisory from 6 am Sunday to 6 am edt Monday for
anz232>235-237.

Small craft advisory from 2 am Sunday to 6 am edt Monday for
anz250-254.

Small craft advisory from 5 am Sunday to 6 am edt Monday for
anz255-256.

Synopsis... Wtb evt
near term... Wtb evt
short term... Wtb
long term... Evt
aviation... Wtb evt
marine... Wtb evt


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
44013 - BOSTON 16 NM East of Boston, MA 11 mi78 min 63°F 67°F2 ft1018.3 hPa (+1.6)
BHBM3 - 8443970 - Boston, MA 20 mi56 min 62°F 1020.2 hPa
44029 - Buoy A0102 - Mass. Bay/Stellwagen 24 mi64 min NNW 12 G 14 62°F 64°F2 ft1019.1 hPa
44018 - SE Cape Cod 30NM East of Nantucket, MA 31 mi78 min N 16 G 18 67°F 3 ft1018.6 hPa (+1.5)53°F
44090 33 mi38 min 68°F2 ft
FRVM3 - 8447386 - Fall River, MA 41 mi56 min 61°F 79°F1020.2 hPa
BLTM3 - 8447387 - Borden Flats Light at Fall River, MA 42 mi50 min N 4.1 G 6 62°F 1020 hPa
FRXM3 42 mi62 min 61°F 52°F
WAXM3 - Waquoit Bay Reserve, MA 44 mi83 min WNW 2.9 59°F 1019 hPa55°F
FOXR1 - 8454000 - Providence, RI 45 mi50 min NE 7 G 11 63°F 71°F1020 hPa
PVDR1 45 mi56 min NNW 6 G 8.9 62°F 1020.2 hPa51°F
BZBM3 - 8447930 - Woods Hole, MA 47 mi56 min 65°F 73°F1019 hPa
CPTR1 - 8452944 - Conimicut Light, RI 47 mi50 min NNW 13 G 17 64°F 74°F1020 hPa

Wind History for Borden Flats Light at Fall River, MA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Marshfield Airport, MA8 mi73 minNW 610.00 miFair63°F53°F73%1019.3 hPa
East Milton, MA20 mi72 minNNW 8 mi55°F48°F80%1020.6 hPa
Boston, Logan International Airport, MA20 mi74 minNNW 710.00 miA Few Clouds63°F48°F58%1019.8 hPa
Plymouth, Plymouth Municipal Airport, MA20 mi76 minNNW 510.00 miFair59°F51°F75%1019.4 hPa
Norwood, Norwood Memorial Airport, MA23 mi75 minN 010.00 miFair53°F48°F83%1019.9 hPa

Link to 5 minute data for KGHG

Wind History from GHG (wind in knots)
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Last 24hrCalmSW43CalmCalmCalm53Calm3CalmCalmCalmN56Calm34N45NW55NW56
1 day agoS5SW5
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543CalmCalmCalmCalm

Tide / Current Tables for Scituate, Scituate Harbor, Massachusetts
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Tide / Current Tables for Boston Harbor, Massachusetts Current
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Boston Harbor
Click for Map
Sat -- 12:09 AM EDT     0.00 knots Slack
Sat -- 02:09 AM EDT     1.12 knots Max Flood
Sat -- 05:42 AM EDT     -0.00 knots Slack
Sat -- 06:00 AM EDT     Sunrise
Sat -- 08:43 AM EDT     -0.94 knots Max Ebb
Sat -- 12:25 PM EDT     0.00 knots Slack
Sat -- 02:32 PM EDT     1.23 knots Max Flood
Sat -- 02:46 PM EDT     Moonset
Sat -- 06:06 PM EDT     -0.00 knots Slack
Sat -- 07:31 PM EDT     Sunset
Sat -- 09:20 PM EDT     -1.09 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.10.71.110.90.5-0.2-0.7-0.9-0.9-0.8-0.7-0.30.51.11.210.70.1-0.6-0.9-1.1-1.1-1

Weather Map and Satellite Images
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GOES 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 (8,2,3,4)
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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.