Sunday, January19, 2020
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Marine Weather and Tides
Bourne, 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 7:02AMSunset 4:41PM Sunday January 19, 2020 8:46 AM EST (13:46 UTC) Moonrise 3:02AMMoonset 1:30PM Illumination 31% 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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ANZ234 Buzzards Bay- 716 Am Est Sun Jan 19 2020
.small craft advisory in effect through Monday morning...
Today..W winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. A chance of showers this morning.
Tonight..NW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft.
Mon..NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft.
Mon night..NW winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft.
Tue and Tue night..NW winds 5 to 10 kt. Seas around 2 ft.
Wed..NW winds around 5 kt. Seas 1 to 2 ft.
Wed night through Thu night..W winds 5 to 10 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 716 Am Est Sun Jan 19 2020
Synopsis for massachusetts and rhode island coastal waters.. Low pres across northern new england will move east into the canadian maritimes today. A cold front will then cross the waters late this afternoon and evening. Large high pres will then build in from the west and remain in the vicinity of the waters for most of the work 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 Bourne, MA
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location: 41.74, -70.61     debug


Area Discussion for - Boston, MA
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FXUS61 KBOX 191144 AFDBOX

Area Forecast Discussion National Weather Service Boston/Norton MA 644 AM EST Sun Jan 19 2020

SYNOPSIS.

Secondary area of low pressure in the Gulf of Maine will continue to pull away from New England today. High pressure building in from the west will result in dry, but cold weather tonight into Wednesday morning. This high will push south of the region by Thursday and Friday with continued dry conditions, but bringing above normal temperatures. We will then need to watch a potential coastal storm which may impact the region sometime next weekend.

NEAR TERM /UNTIL 6 PM THIS EVENING/.

645 AM Update .

We dropped the Winter Weather Advisory as the threat for spotty freezing drizzle was quickly coming to an end. Many locations were still in the upper teens to middle 20s, but readings were already in the 30s to around 40 near the south coast. There were a few lingering light rain showers near the south coast, but those will be departing shortly.

Otherwise, intensifying low pressure was lifting northeast into the Canadian Maritimes. This will quickly mix out our remaining low level cold inversion, so untreated icy roads will quickly improve this morning. Partial sunshine will result in high temperatures reaching the lower to middle 40s in many locations. It will become blustery with 25 to 30 mph wind gusts developing and perhaps a few gusts near 35 mph this afternoon. Dry weather should pretty much prevail, but can not rule out a spot rain/snow shower as a cold front approaches especially along the east slopes of the Berkshires.

SHORT TERM /6 PM THIS EVENING THROUGH 6 PM MONDAY/.

Tonight:

Main story for tonight is the return of much colder air that filters in on NW flow (850 mb temps plummet to the negative teens Celsius), along with continued northwest winds. Sided a little bit warmer on the lows with the idea that the winds will keep temperatures from falling really sharply even though we're otherwise in a good radiational cooling setup. Showed range of lows low- teens to the mid 20s. Wind chills in the single digits below zero to the single digits above.

One feature that we will have to watch for overnight is a secondary 500 mb trough rippling through the longwave cyclonic flow. Model guidance continues to show some interaction with an inverted trough associated with the distant secondary low pressure in the Maritimes to foster a period of snow showers across parts of Cape Cod and Nantucket. QPF isn't substantial - a few hundredths at most - but cold profiles and ocean-effect instability could produce an inch or so of new snow late tonight of across a good part of the Cape and into Nantucket.

Monday:

Continued quite chilly with the low-level thermal trough overhead and blustery NW winds still prevailing, though speeds and gusts should be less than today. Ocean-effect snow showers may continue to brush the Cape through midday, though the threat should be ending by afternoon as the inverted trough pulls away. Full sun but heating offset by weakening cold advection supports highs only the upper teens to the mid/upper 20s. Wind chills by daybreak still at or below zero in NW MA but expected to warm gradually in lockstep with slowly warming temps.

LONG TERM /MONDAY NIGHT THROUGH SATURDAY/.

Highlights .

* Dry and cold Mon night and Tue

* Temps moderate Wed and esp Thu/Fri with dry weather persisting

* Coastal storm possible next weekend with rain favored, but can not rule out some snow/ice especially across the interior

Details .

Monday night and Tuesday .

Upper trough over the northeast will keep temperatures cold, but a ridge of high pressure at the surface will result in dry weather. Lows Mon night will bottom out in the teens with some single digits possible across portions of western/central MA. Highs on Tuesday will only be in the upper 20s to near 30 in most locations.

Wednesday .

After a cold start early Wednesday morning, temperatures will begin to moderate. This in response to the upper level trough pulling away from the region, allowing for rising height fields to commence. This should be enough to allow afternoon highs to reach well into the 30s in many locations. High pressure overhead will result in rather light winds and plenty of sunshine too.

Thursday and Friday .

Some upper level ridging builds into southern New England. This will bring a return to above normal temperatures Thu and Fri. A ridge of high pressure at the surface will also keep our weather dry. High should reach well into the 40s in many locations. It also is not out of the question that a few locales break 50 by Fri.

Next Weekend .

There are signs in the long range guidance/ensembles of a potential coastal storm. Timing/track of course is uncertain in this time range, but if it comes to fruition might end up being slow moving with some blocking to the north. As for ptype, still uncertain given this is a day 6-7 forecast. That being said, cold air will be lacking across much of the country given deep trough over Alaska. This would favor rain at least along the coastal plain. However, there is high pressure system across eastern Canada. Depending on its position/strength, this may provide just enough cold air for some snow/ice with the best chance across the interior. Not much more to say at this point, but will have to see how things trend over the next few days.

AVIATION /12Z SUNDAY THROUGH THURSDAY/. Forecaster Confidence Levels .

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

12z TAF Update:

Today: High confidence. Lingering IFR-LIFR conditions in low clouds should quickly improve to mainly VFR by 14 or 15z as shallow inversion mixes out. WNW wind gusts of 25 knots should develop by afternoon.

Tonight: High confidence.

VFR. Low prob MVFR ceilings and visibility across the outer Cape and Nantucket, mainly after 20/05Z. NW winds decreasing to 10 kt (gusts 18-20 kt) in the interior, with 10-15 kt gusts to 20-25 kt on the Cape and Nantucket.

Monday: High confidence.

VFR. NW winds 6-10 kt in the interior, 10-12 kt with early gusts to 20-25 kt out on the Cape.

KBOS Terminal . High confidence.

KBDL Terminal . High confidence.

Outlook /Monday Night through Thursday/ .

Monday Night: VFR. Breezy.

Tuesday through Thursday: VFR.

MARINE. SCAs continue on all waters with NW winds increasing by this morning and colder air moves over the waters. Winds and seas may still support continued SCA conditions on most offshore waters through Monday morning. Potential for the SCAs to need to be extended further into Monday but wasn't confident on this as yet to consider that extension.

Light freezing spray will be possible tonight with the colder air across the waters. Into late tonight and Monday, snow showers may affect Cape Cod Bay, Nantucket Sound and the waters east of Cape Cod.

Outlook /Monday Night through Thursday/ .

Monday Night: Low risk for Small Craft Advisory winds with gusts up to 25 kt. Seas up to 5 ft.

Tuesday: Winds less than 25 kt. Seas locally approaching 5 ft. Local visibility 1 to 3 nm.

Tuesday Night through Thursday: Winds less than 25 kt.

BOX WATCHES/WARNINGS/ADVISORIES. CT . None. MA . None. RI . None. MARINE . Small Craft Advisory until 7 AM EST Monday for ANZ231>235-237- 250-251-254>256. Small Craft Advisory until midnight EST tonight for ANZ230-236.

SYNOPSIS . Loconto/Frank NEAR TERM . Frank SHORT TERM . Loconto LONG TERM . Frank AVIATION . Loconto/Frank MARINE . Loconto/Frank


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
WAXM3 - Waquoit Bay Reserve, MA 12 mi62 min WSW 5.1 40°F 1003 hPa38°F
BZBM3 - 8447930 - Woods Hole, MA 15 mi53 min 39°F 39°F1003.6 hPa
44090 16 mi47 min 41°F1 ft
44020 - NANTUCKET SOUND 24 mi67 min 2 ft
FRVM3 - 8447386 - Fall River, MA 29 mi53 min 37°F 39°F1003.8 hPa
FRXM3 30 mi53 min 38°F 35°F
BLTM3 - 8447387 - Borden Flats Light at Fall River, MA 30 mi47 min 38°F 1003.6 hPa (+0.6)
BUZM3 - Buzzards Bay, MA 33 mi47 min W 20 G 22 39°F 1004 hPa (+0.4)
PRUR1 38 mi47 min 38°F 35°F
CPTR1 - 8452944 - Conimicut Light, RI 39 mi47 min 36°F 36°F1003.7 hPa (+0.5)
NAXR1 - Narragansett Bay Reserve, RI 39 mi62 min W 4.1 37°F 1004 hPa35°F
PTCR1 - 8452951 - Potter Cove, Prudence Island, RI 39 mi47 min 37°F 1004.4 hPa (+0.7)
44018 - SE Cape Cod 30NM East of Nantucket, MA 41 mi57 min W 16 G 19 35°F 3 ft1002.1 hPa (-0.0)32°F
NWPR1 - 8452660 - Newport, RI 41 mi47 min 38°F 35°F1003.8 hPa (+0.5)
PVDR1 41 mi47 min 37°F 1003.9 hPa (+0.6)33°F
FOXR1 - 8454000 - Providence, RI 42 mi47 min 35°F 37°F1003.7 hPa (+0.6)
NTKM3 - 8449130 - Nantucket Island, MA 42 mi47 min 41°F 35°F1003.5 hPa (-0.0)
44013 - BOSTON 16 NM East of Boston, MA 42 mi57 min W 7.8 G 12 30°F 44°F2 ft1002.2 hPa (+0.0)
QPTR1 - 8454049 - Quonset Point, RI 44 mi53 min 37°F 39°F1004.1 hPa
BHBM3 - 8443970 - Boston, MA 48 mi47 min 25°F 39°F1002.2 hPa (+0.4)

Wind History for Borden Flats Light at Fall River, MA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Otis Air National Guard Base, MA7 mi62 minW 12 G 1810.00 miOvercast37°F37°F100%1003 hPa
Plymouth, Plymouth Municipal Airport, MA13 mi55 minWSW 510.00 miMostly Cloudy35°F34°F96%1003.3 hPa
Hyannis, Barnstable Municipal-Boardman Airport, MA18 mi1.8 hrsW 710.00 miOvercast39°F36°F89%1002.5 hPa
New Bedford, New Bedford Regional Airport, MA19 mi54 minW 510.00 miOvercast36°F34°F93%1003.3 hPa
Marthas Vineyard Airport, MA23 mi54 minW 11 G 198.00 miOvercast40°F37°F93%1003.3 hPa
Taunton, Taunton Municipal Airport, MA24 mi55 minN 01.75 miFog/Mist33°F32°F96%1003.2 hPa

Link to 5 minute data for KFMH

Wind History from FMH (wind in knots)
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Last 24hrNW6SW3SW6SW6SW9SW4SW4SW5S4S6SE6--SE11
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1 day ago--N13
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2 days agoS8SW11W18NW18
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Tide / Current Tables for Cape Cod Canal, Buzzards Bay Entrance, Massachusetts
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Cape Cod Canal
Click for Map
Sun -- 02:02 AM EST     Moonrise
Sun -- 04:02 AM EST     3.89 feet High Tide
Sun -- 07:05 AM EST     Sunrise
Sun -- 11:37 AM EST     -0.39 feet Low Tide
Sun -- 12:30 PM EST     Moonset
Sun -- 04:21 PM EST     3.10 feet High Tide
Sun -- 04:41 PM EST     Sunset
Sun -- 11:54 PM EST     -0.04 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.31.42.73.63.93.73.12.31.610.3-0.2-0.30.41.62.63.132.51.91.30.90.60.2

Tide / Current Tables for Cape Cod Canal, Massachusetts Current
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Cape Cod Canal
Click for Map
Sun -- 01:03 AM EST     4.12 knots Max Flood
Sun -- 02:02 AM EST     Moonrise
Sun -- 04:29 AM EST     -0.20 knots Slack
Sun -- 07:05 AM EST     Sunrise
Sun -- 07:21 AM EST     -4.33 knots Max Ebb
Sun -- 10:34 AM EST     0.03 knots Slack
Sun -- 12:29 PM EST     Moonset
Sun -- 01:40 PM EST     4.02 knots Max Flood
Sun -- 04:41 PM EST     Sunset
Sun -- 05:03 PM EST     -0.02 knots Slack
Sun -- 07:51 PM EST     -4.22 knots Max Ebb
Sun -- 11:01 PM EST     0.19 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.84.13.93.42.1-2.2-3.7-4.3-4.2-3.5-2.21.93.33.943.72.90.7-3-4-4.2-3.8-2.9-0.5

Weather Map
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GEOS 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 (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 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.