Monday, April23, 2018 L-36.com


Marine Weather and Tides
Duxbury, MA

Version 3.4
What's New / NOTES
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.
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.

Sunrise 5:47AMSunset 7:35PM Monday April 23, 2018 7:07 PM EDT (23:07 UTC) Moonrise 12:38PMMoonset 2:25AM Illumination 62% Phase: Waxing Gibbous; Moon at 9 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
    EDIT      (on/off)   Help
ANZ231 Cape Cod Bay- 326 Pm Edt Mon Apr 23 2018
Tonight..S winds 5 to 10 kt. Seas 1 foot or less.
Tue..S winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 1 foot or less.
Tue night..S winds 5 to 10 kt. Seas around 2 ft. Rain likely.
Wed..SE winds 10 to 15 kt with gusts up to 20 kt, increasing to 15 to 20 kt with gusts up to 30 kt in the afternoon. Seas 2 to 3 ft. Patchy fog. Rain. Vsby 1 nm or less.
Wed night..SE winds 15 to 20 kt with gusts up to 30 kt, becoming S 10 to 15 kt with gusts up to 20 kt after midnight. Seas 2 to 4 ft. Patchy fog. Rain likely. Vsby 1 nm or less.
Thu..SW winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Patchy fog. A chance of showers.
Thu night..W winds 10 to 15 kt with gusts up to 20 kt, becoming sw 5 to 10 kt after midnight. Seas 2 to 3 ft.
Fri..SW winds 5 to 10 kt. Seas around 2 ft.
Fri night..SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. A chance of showers.
Sat..SW winds 5 to 10 kt. Seas around 2 ft.
Sat night..W winds 10 to 15 kt. Seas around 2 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 326 Pm Edt Mon Apr 23 2018
Synopsis for massachusetts and rhode island coastal waters.. High pressure over the waters will shift east tonight and Tuesday. Low pressure will move up the eastern seaboard Tuesday night and Wednesday bringing fog and showers, then crossing the waters by Thursday morning. Another storm will be moving up along the coast Friday night. High pressure will begin to build in from the west Saturday and Sunday. 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 Duxbury, MA
   Hourly   EDIT   Help
location: 42.04, -70.67     debug


Area Discussion for - Boston, MA
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus61 kbox 231946
afdbox
area forecast discussion
national weather service boston norton ma
346 pm edt Mon apr 23 2018

Synopsis
High pressure remains in control through Tuesday bringing dry
weather with mild daytime temperatures. Low pressure approaches
and then passes through new england Tuesday night into
Wednesday night, bringing rain to the area. Another weak low
pressure center may bring another round of showers to the area
Friday night.

Near term until 6 am Tuesday morning
250 pm update...

the high pressure that was centered overhead today begins to
shift to the southeast of our area tonight. Clear skies continue.

With winds expected to be light, expect good radiational
cooling. Forecasting lows in the 30s for much of the area,
except for low 40s in some urban centers and portions of the
cape and islands. Patchy areas of frost are expected to develop.

Short term 6 am Tuesday morning through Tuesday night
Tuesday...

as the surface high moves further offshore, Tuesday will bring
developing S to SW wind. A sea breeze is possible along east coastal
ma for part of the day, however as the SW flow increases some during
the afternoon, the east coastal sea breeze should come to an end.

Mostly sunny skies expected for much of the day, with increasing
clouds during the afternoon. A slightly warmer day with highs in the
60s across much of the area, some locales may reach 70 degrees. The
cooler area will be the immediate south coast of ma ri, where the
persistent S wind will keep highs in the upper 50s to near 60.

Tuesday night...

models show mid level ridging moving east of our area while deep
trough currently over the lower ohio mississippi valleys works
its way eastward. This pattern shift prompts a moisture-rich
low pressure system to track eastward towards the delmarva
coastline. Moisture well ahead of this system will result in
skies becoming cloudy during the evening, but it will take some
time to moisten the column with respect to any precipitation.

Expecting rain to become likely after midnight. Pwats during the
overnight increase to 1 to 1.3 inches, so some moderate
rainfall possible but generally thinking rainfall of a tenth to
half inch prior to 12z wed.

Cloud cover and increasing dew points will keep overnight lows
somewhat milder, lows in the low to mid 40s for much of the area.

Long term Wednesday through Monday
Highlights...

* wet weather Wednesday, diminishing Wednesday night
* another round of showers possible Friday night and late Saturday
discussion...

the 23 12z operational guidance has come into better agreement
with the details into Thursday. Fairly good overall agreement
thereafter, although the canadian model really GOES off on its
own later this weekend. Preferred a solution more like the gfs
and ECMWF camp. Further prefer an ensemble mean approach,
especially after Thursday.

Wednesday and Wednesday night...

essentially the same story from the past few days. Multiple
waves phase in the vicinity of the central appalachians, or
perhaps into the mid atlantic. Coastal low develops and tracks
north through southern new england Tuesday night into Wednesday
night. This will mean a period of wet weather for our region.

Modest elevated instability still present, so cannot dismiss the
possibility of isolated thunderstorms.

Still looking like a general one half to one inch of rainfall
when all is done. Locally heavier amounts possible in any
persistent slow-moving thunderstorms.

Thursday through Friday...

except for possibly widely scattered late Thursday afternoon or
early evening instability showers over the NW higher terrain, it
looks dry Thursday afternoon through at least most of Friday.

Confidence has increased of at least most of daytime Friday
remaining dry.

Friday night...

a weak coastal low pressure may pass by just close enough for a
risk of showers late Friday into Friday night, mainly across
southeast ma and ri. Also will have to monitor the progress of a
cold front associated with a low pressure in the st. Lawrence
valley, which could also bring a chance for showers across the
western half of southern new england late Friday night. Confidence
remains rather low on these details, so later forecasts may
change.

Rest of this weekend...

a cold front associated with a northern stream trough may
result in scattered showers Saturday, but confidence in details
remains low.

Monday... High pressure expected to build in with drier weather.

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

low - less than 30 percent.

Moderate - 30 to 60 percent.

High - greater than 60 percent.

Short term through Tuesday night ... High confidence.

Remainder of this afternoon...VFR with clear skies and
excellent visibility. Local sea breezes persist.

Tonight...VFR with clear skies and excellent visibility.

Tuesday...VFR. Prevailing wind out of the ssw, initially light
enough where a sea breeze may develop along east coastal ma for
a time. Then as winds aloft strengthen somewhat during the
afternoon, the winds along east coastal ma should shift back to
the ssw.

Tuesday night...VFR to start. Becoming mainly MVFR after
midnight, with local ifr possible towards daybreak. Shra
spreading into the area mainly after midnight.

Kbos terminal... High confidence in taf. Sea breeze this afternoon,
with a sea breeze probable for late morning into early afternoon
tue.

Kbdl terminal... High confidence in taf.

Outlook Wednesday through Saturday ... High confidence.

Wednesday: mainly ifr, with local MVFR possible. Windy with
local gusts to 30 kt. Ra with isolated tsra. Patchy fg.

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

Ra likely, tapering off to shra. Isolated tsra possible. Patchy
fg.

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

Thursday night through Friday:VFR.

Friday night through Saturday:VFR. 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 Tuesday night ... High confidence.

Tonight...

high pressure over the waters tonight with south winds 10 kt or
less, seas 1 to 2 feet on the outer coastal waters. Good
visibility. Only concern for recreational boaters continues into
early this evening is for sea breezes along the coastline today with
15-20kt gusts and choppy seas near shore, especially when opposing
outgoing tide.

Tuesday...

south wind increasing over the course of the day to 10 to 20 kts.

Sea breeze along east coastal ma possible late morning midday, then
s winds should prevail as they strengthen. Seas 1 to 3 feet.

Tuesday night... Se winds less than 25 kt. Seas locally approaching
5 ft, especially on the southern outer coastal waters. Sca
headlines may be needed. Rain showers becoming likely towards
daybreak.

Outlook Wednesday through Saturday ... High confidence.

Wednesday: moderate risk for small craft advisory winds with
gusts up to 30 kt. Areas of rough seas. Rain, isolated
thunderstorms, patchy fog. Areas of visibility 1 nm or less.

Wednesday night: low risk for small craft advisory winds with
gusts up to 30 kt. Rough seas up to 13 ft. Rain likely, chance
of rain showers, isolated thunderstorms, patchy fog. Local
visibility 1 nm or less.

Thursday: low risk for small craft advisory winds with gusts up
to 25 kt. Rough seas up to 10 ft. Slight chance of rain
showers.

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

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

Friday night: winds less than 25 kt. Areas of seas approaching
5 ft. Chance of rain showers.

Saturday: winds less than 25 kt. Areas of seas approaching
5 ft.

Equipment
The NOAA weather radio transmitter serving providence is out of
service due to phone line problems. The phone company has
prioritized the issues and is working to get the weather
broadcast back on the air as soon as possible. The transmitter
serving hyannis is back in service.

Box watches warnings advisories
Ct... None.

Ma... None.

Ri... None.

Marine... None.

Synopsis... Belk nmb
near term... Nmb
short term... Nmb
long term... Belk
aviation... Belk nmb
marine... Belk nmb
equipment... Staff


Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map
Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
44013 - BOSTON 16 NM East of Boston, MA 21 mi77 min SE 9.7 G 12 46°F 45°F1 ft1029.3 hPa (-1.6)
44090 23 mi37 min 46°F
WAXM3 - Waquoit Bay Reserve, MA 33 mi82 min 2.9 53°F 1032 hPa30°F
44029 - Buoy A0102 - Mass. Bay/Stellwagen 34 mi123 min 46°F 46°F1 ft1029.1 hPa
BLTM3 - 8447387 - Borden Flats Light at Fall River, MA 35 mi49 min S 8.9 G 12 54°F 1031.3 hPa
FRVM3 - 8447386 - Fall River, MA 35 mi49 min 56°F 48°F1031.7 hPa
FRXM3 36 mi49 min 54°F 27°F
BZBM3 - 8447930 - Woods Hole, MA 36 mi49 min 50°F 46°F1031.7 hPa
PVDR1 42 mi49 min SSE 16 G 18 52°F 1030.9 hPa36°F
CPTR1 - 8452944 - Conimicut Light, RI 42 mi49 min S 15 G 17 50°F 48°F1030.9 hPa
FOXR1 - 8454000 - Providence, RI 42 mi49 min S 14 G 20 52°F 47°F1030.6 hPa
PTCR1 - 8452951 - Potter Cove, Prudence Island, RI 45 mi49 min SW 5.1 G 8.9 50°F 1031.2 hPa
NAXR1 - Narragansett Bay Reserve, RI 45 mi82 min S 8 51°F 1008 hPa31°F
BUZM3 - Buzzards Bay, MA 48 mi187 min S 13 G 13 48°F 1032.1 hPa
44020 - NANTUCKET SOUND 49 mi77 min ESE 7.8 G 9.7 46°F 45°F1031.2 hPa (-0.8)41°F

Wind History for Borden Flats Light at Fall River, MA
(wind in knots)    EDIT      (on/off)   Help
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
-12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
Last
24hr
SW14
SW9
G12
SE2
SE3
SE2
NE3
NE2
NE1
--
NE1
N2
SW1
W1
--
N1
NE6
NE5
SW8
SW4
SW15
SE11
G14
SW18
S11
G15
1 day
ago
SW6
SW6
SW6
SW6
NW1
NE2
NE2
N1
N2
E2
SW1
N1
W1
W3
W3
G6
NW10
G14
NW11
G14
NW11
G14
W11
G14
W7
SW15
SW17
SW15
SW16
2 days
ago
NW15
G23
N13
G18
N9
NW14
G19
NW10
G13
NW8
G11
NW4
NW7
W5
G8
NW9
G12
W7
G10
NW8
G11
NW8
NW11
G14
NW10
G16
N13
G19
NW10
G13
NW6
G10
NW11
G16
W8
W12
G15
SW8
SW5
SW9

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Marshfield Airport, MA4 mi72 minVar 610.00 miFair52°F23°F32%1030.8 hPa
Plymouth, Plymouth Municipal Airport, MA10 mi75 minSE 510.00 miFair59°F12°F15%1030.9 hPa
Taunton, Taunton Municipal Airport, MA21 mi75 minSSE 710.00 miFair60°F23°F24%1030.5 hPa

Wind History from GHG (wind in knots)
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
Last 24hrS5
G10
CalmCalmCalmW3W4W456
G11
NW64
G10
N3N5665NE8NE7E8E74SE6SE8
G13
SE6
1 day agoS5CalmCalmW3CalmNW3CalmW4W5W4W5W4Calm666
G12
N9
G15
N7
G19
3
G11
4
G12
E8
G14
SE11SE9SE7
G12
2 days agoNW9
G17
NW8
G18
NW8
G15
NW4
G10
NW8
G16
NW7
G14
4
G10
5W4655
G10
6NW8
G15
NW10
G16
N9
G16
N9
G16
5
G15
NE83
G12
E8
G13
E11SE13SE5

Tide / Current Tables for Duxbury, Duxbury Harbor, Cape Cod Bay, Massachusetts
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Duxbury
Click for Map
Mon -- 12:06 AM EDT     0.77 feet Low Tide
Mon -- 02:25 AM EDT     Moonset
Mon -- 05:49 AM EDT     Sunrise
Mon -- 05:53 AM EDT     10.84 feet High Tide
Mon -- 12:38 PM EDT     Moonrise
Mon -- 12:47 PM EDT     -0.09 feet Low Tide
Mon -- 06:40 PM EDT     9.84 feet High Tide
Mon -- 07:32 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.81.53.55.98.310.210.810.28.66.64.320.4-0.11.135.47.99.59.897.55.73.6

Tide / Current Tables for Cape Cod Canal, Massachusetts Current
   EDIT      (on/off)   Help   One Week of Data
Cape Cod Canal
Click for Map
Mon -- 12:37 AM EDT     3.86 knots Max Flood
Mon -- 02:24 AM EDT     Moonset
Mon -- 03:58 AM EDT     -0.12 knots Slack
Mon -- 05:50 AM EDT     Sunrise
Mon -- 07:03 AM EDT     -4.40 knots Max Ebb
Mon -- 10:12 AM EDT     0.19 knots Slack
Mon -- 12:38 PM EDT     Moonrise
Mon -- 01:22 PM EDT     4.19 knots Max Flood
Mon -- 05:00 PM EDT     -0.04 knots Slack
Mon -- 07:32 PM EDT     Sunset
Mon -- 07:44 PM EDT     -4.11 knots Max Ebb
Mon -- 10:52 PM EDT     0.18 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
3.83.83.42.6-0.5-2.9-4-4.4-4.1-3.2-1.42.63.74.24.13.72.80.1-3-3.9-4.1-3.6-2.61

Weather Map and Satellite Images
       (on/off)   HelpWeather Map
wmap_A
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.
target = "new">Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Boston, MA (19,4,5,8)
      (on/off)   Help

Ground Weather Radar Station Boston, MA
   (on/off)   Help
weather_mapweather_map weather_map

Ad by Google

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.