Tuesday, June19, 2018 L-36.com


Marine Weather and Tides
North Scituate, MA

Version 3.4
What's New / NOTES
5/20/2018 -- NOAA is having problems with the data feed that I use to draw the graphs. They are aware of the issue and working to resolve it. Sometimes changing the location by about a mile will give a correct graph. 3/3/2018 - There is a new GOES Satellite for the east coast that required rewriting that part of the code. Please report any issues.

Sunrise 5:04AMSunset 8:25PM Tuesday June 19, 2018 10:12 AM EDT (14:12 UTC) Moonrise 11:45AMMoonset 12:26AM Illumination 36% 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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ANZ251 Massachusetts Bay And Ipswich Bay- 716 Am Edt Tue Jun 19 2018
Today..NW winds 5 to 10 kt. Seas around 2 ft.
Tonight..NW winds 5 to 10 kt. Seas 1 foot or less.
Wed..SW winds around 5 kt, becoming S 10 to 15 kt in the afternoon. Seas around 2 ft.
Wed night..SW winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Seas around 2 ft.
Thu..N winds 5 to 10 kt with gusts up to 20 kt, becoming E in the afternoon. Seas 1 foot or less.
Thu night..SE winds 5 to 10 kt, becoming W after midnight. Seas 1 foot or less.
Fri..E winds 5 to 10 kt. Seas around 2 ft.
Fri night..S winds 5 to 10 kt. Seas around 2 ft.
Sat..S winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers.
Sat night..S winds 5 to 10 kt. Seas 2 to 3 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 716 Am Edt Tue Jun 19 2018
Synopsis for massachusetts and rhode island coastal waters.. A cold front will sweep offshore during the morning hours today behind which winds will shift northerly as high pressure builds in from the west. Shifting east, an area of low pressure follows for Wednesday night skirting south coastal new england with rain and possibly lower visibility. Seasonable and dry weather follows with return high pressure the remainder of the week, while a warm front lifts north across the waters over 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 North Scituate, MA
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location: 42.33, -70.57     debug


Area Discussion for - Boston, MA
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Fxus61 kbox 191133
afdbox
area forecast discussion
national weather service boston norton ma
733 am edt Tue jun 19 2018

Synopsis
Seasonable, dry, comfortable conditions with lower humidity today.

Low pressure passes off the south coast Wednesday, with a chance
of showers along the coast. High pressure from canada brings dry
weather Thursday and Friday. A cold front them brings a chance of
showers over the weekend, followed by dry weather early next week.

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

a surface cold front reached the south coast within the past
hour. This front will move offshore over the next hour, taking
the last of the showers with it. Minor tweaks to bring the
forecast back in line with observed trends.

Previous discussion...

clearing out and improving immediately behind the cold front. High
pressure building in from the W round which accompanying n, breezy
flow allows for steep boundary layer lapse rates up to h85, enough
to mix down faster momentum from the lingering pressure gradient
associated with the low lifting NE against the building high, as
well as drier air. Prevailing dewpoints with a mix of available
guidance along with model sounding mix-down dewpoints. More
seasonable, drier weather in store, highs upper 70s to low 80s,
some mid 80 readings not out of the question with dewpoints
around the upper 40s to low 50s. Comfortable to put it simply.

Short term 6 pm this evening through 6 pm Wednesday
Tonight...

radiational cooling. High pressure in control. Light winds, mostly
clear conditions, leaning with coolest of MOS guidance. Talking
lows around the upper 40s to low 50s. No need for the ac, open
your windows.

Wednesday...

mainly a dry, seasonable day under the continued weight of high
pressure. Shifting to the e, return S flow late, however light
enough to allow e-coastal sea-breezes. Meanwhile, weak, fast-moving
disturbance emerging out of the oh river valley. Isentropic-ascent
ahead of a re-enforcing cold front out of canada, looking at
increasing clouds towards Wednesday evening initially, any skirting
rain to hold off later. Again, dry forecast.

Long term Wednesday night through Monday
Mid level flow pattern remains fairly stable through the end of
this work week, then should undergo more significant changes
this weekend into early next week. These changes will be
predicated upon the timing of some shortwave energy to phase
with a more persistent mid level trough over southeast canada.

Decent amount of spread in the ensembles, as well as among the
operational guidance. Forecast confidence is high through
Friday, trending to moderate for this weekend and early next
week.

Low pressure should pass by far enough to our south Wednesday
night into Thursday where only a chance of showers along the
south coast. High pressure arrives later Thursday and should
linger through Friday. Will keep a mention for a chance of
showers this weekend, but will not try to narrow the window of
these showers much. This will depend upon the timing of
shortwave energy crossing the county. More changes to this
timing are very possible, if not likely. Drier weather should
develop for early next week.

Otherwise, temperatures are expected to be near to slightly
above normal, depending upon how much sunshine we get. Humidity
start out fairly comfortable, then should increase into this
weekend.

Aviation 12z Tuesday through Saturday
Forecaster confidence levels...

low - less than 30 percent.

Moderate - 30 to 60 percent.

High - greater than 60 percent.

Short term through Wednesday ... Moderate confidence.

Today...

vfr. N winds, gusty up around 20 kts at times.

Tonight..

Vfr. However conditions just right within sheltered valleys, may
see some spotty ifr-lifr conditions with fg. Higher confidence
in mid to upper ct river valley.

Wednesday...

vfr. Overall light winds becoming S sw. Allowance for e-coastal
sea-breezes to develop around 15z. Increasing mid-upper level
cigs late.

Kbos terminal...

holdVFR throughout. NW flow through the day, gusts up to 20 kt
early.

Kbdl terminal...

maintainVFR however not ruling out MVFR when observing upstream
trends presently over NW ma. An opportunity during the morning
push before clearing out. Wind shift at the terminal around 940z.

Outlook Wednesday night through Saturday ... Moderate confidence.

Wednesday night:VFR. Breezy. Slight chance shra.

Thursday through Friday night:VFR.

Saturday:VFR. Chance shra.

Marine
Forecaster confidence levels...

low - less than 30 percent.

Moderate - 30 to 60 percent.

High - greater than 60 percent.

Short term through Wednesday ... High confidence.

Cold front pushing across the E waters this early morning, into
the S waters roughly around 8 am. SW flow in advance with gusts
upwards of 25 kts will keep wave heights 4-5 feet on the outer
waters. Winds shifting N with passage, remaining brisk with
gusts up to 20 kts, however high pressure building in from the
w, should allow for seas to diminish through afternoon and
subsequent conclusion of small craft advisories. Overnight and
into Wednesday, high pressure in control yielding light winds,
good boating weather. E onshore sea-breeze flow Wednesday.

Outlook Wednesday night through Saturday ... Moderate confidence.

Wednesday night: winds less than 25 kt. Chance of rain showers.

Thursday through Friday night: winds less than 25 kt.

Saturday: winds less than 25 kt. Chance of rain showers.

Box watches warnings advisories
Ct... None.

Ma... None.

Ri... None.

Marine... Small craft advisory until 2 pm edt this afternoon for
anz254>256.

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


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
44013 - BOSTON 16 NM East of Boston, MA 4 mi83 min NW 12 G 14 65°F 60°F1 ft1006.1 hPa (+2.6)60°F
44029 - Buoy A0102 - Mass. Bay/Stellwagen 13 mi69 min 60°F 57°F1 ft1005 hPa
44018 - SE Cape Cod 30NM East of Nantucket, MA 24 mi83 min NW 7.8 G 9.7 60°F 1 ft1005.9 hPa (+2.4)60°F
BHBM3 - 8443970 - Boston, MA 25 mi43 min 76°F 1006.3 hPa
44090 36 mi43 min 61°F1 ft
44098 - Jeffrey's Ledge, NH (160) 39 mi37 min 56°F2 ft
IOSN3 - Isle of Shoals, NH 44 mi73 min NW 13 G 15 69°F 1005.7 hPa (+2.0)56°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
Marshfield Airport, MA17 mi38 minNNW 7 G 2110.00 miFair77°F60°F57%1006.8 hPa

Wind History from GHG (wind in knots)
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W754NW9N7
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1 day agoNE5E6NE6E6E5E6NE543S55
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2 days ago5
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5NE5CalmCalmCalmCalmCalmCalmSW4W3W4W55W66CalmW4CalmCalmCalm

Tide / Current Tables for Scituate, Massachusetts
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Scituate
Click for Map
Tue -- 12:26 AM EDT     Moonset
Tue -- 04:13 AM EDT     10.17 feet High Tide
Tue -- 05:06 AM EDT     Sunrise
Tue -- 10:39 AM EDT     -0.72 feet Low Tide
Tue -- 11:45 AM EDT     Moonrise
Tue -- 04:56 PM EDT     9.47 feet High Tide
Tue -- 08:22 PM EDT     Sunset
Tue -- 11:04 PM EDT     0.32 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.54.87.19.210.19.88.46.23.81.3-0.4-0.60.52.44.77.18.99.58.97.45.43.11.20.3

Tide / Current Tables for Marblehead Channel, Massachusetts Current
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Marblehead Channel
Click for Map
Tue -- 12:26 AM EDT     Moonset
Tue -- 02:12 AM EDT     0.40 knots Max Flood
Tue -- 05:03 AM EDT     -0.00 knots Slack
Tue -- 05:05 AM EDT     Sunrise
Tue -- 09:30 AM EDT     -0.39 knots Max Ebb
Tue -- 11:41 AM EDT     0.00 knots Slack
Tue -- 11:45 AM EDT     Moonrise
Tue -- 03:01 PM EDT     0.41 knots Max Flood
Tue -- 05:44 PM EDT     -0.00 knots Slack
Tue -- 08:23 PM EDT     Sunset
Tue -- 10:09 PM EDT     -0.37 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.30.40.40.40.20-0.2-0.3-0.4-0.4-0.4-0.20.10.30.40.40.30.2-0-0.2-0.3-0.3-0.4-0.3

Weather Map and Satellite Images
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wmap_A
GOES 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 (10,2,3,4)
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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.