Sunday, December8, 2019
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Marine Weather and Tides
Bliss Corner, 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 6:56AMSunset 4:14PM Sunday December 8, 2019 3:12 AM EST (08:12 UTC) Moonrise 3:25PMMoonset 4:01AM Illumination 87% Phase: Waxing Gibbous; Moon at 11 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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ANZ235 Rhode Island Sound- 116 Am Est Sun Dec 8 2019
.gale watch in effect from Monday afternoon through late Monday night...
Rest of tonight..N winds 5 to 10 kt. Seas around 2 ft.
Sun..W winds around 5 kt, becoming S 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas around 2 ft.
Sun night..S winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. A chance of showers.
Mon..S winds 10 to 15 kt with gusts up to 20 kt, increasing to 20 to 25 kt with gusts up to 40 kt in the afternoon. Seas 4 to 7 ft. Areas of fog. Showers. Vsby 1 to 3 nm.
Mon night..S winds 25 to 30 kt, becoming sw 20 to 25 kt after midnight. Gusts up to 40 kt. Seas 7 to 10 ft. Areas of fog. Rain. Vsby 1 nm or less.
Tue..SW winds 20 to 25 kt, diminishing to 15 to 20 kt in the afternoon. Gusts up to 35 kt. Seas 7 to 10 ft. Showers likely.
Tue night..W winds 15 to 20 kt, becoming nw 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 5 to 8 ft. Showers likely.
Wed..NW winds 10 to 15 kt with gusts up to 25 kt. Seas 4 to 6 ft. A chance of rain or snow showers. Vsby 1 to 3 nm.
Wed night..NW winds 10 to 15 kt with gusts up to 25 kt. Seas 4 to 6 ft.
Thu and Thu night..N winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 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 116 Am Est Sun Dec 8 2019
Synopsis for massachusetts and rhode island coastal waters.. High pressure will move off the coast Sunday as a slow moving cold front approaches from the west Mon into Tue. Gale force S to sw winds are expected late Mon afternoon into Tue. The cold front sweeps across the waters Tue night with a secondary cold front moving through Wed afternoon. Strong high pres moves into the region Thu and Fri. 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 Bliss Corner, MA
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location: 41.46, -71.02     debug


Area Discussion for - Boston, MA
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FXUS61 KBOX 080756 AFDBOX

Area Forecast Discussion National Weather Service Boston/Norton MA 256 AM EST Sun Dec 8 2019

SYNOPSIS. Cold high pressure moving across southern New England was resulting in a frigid night. The high moves offshore Sunday, starting a return flow of milder and moist air for the first half of the week. This will bring off and on rain from late Sunday night into Monday and Tuesday. Very strong wind gusts are possible late Monday and Monday night in southeast areas. A cold front moves through Tuesday night, and there might be some snow Tuesday night into Wednesday although confidence is very low at this point. Dry weather returns late Wednesday with colder temperatures for Thursday. Another coastal weather system may bring a mix of precipitation Friday or Saturday.

NEAR TERM /UNTIL 6 AM THIS MORNING/. 115 AM Update:

Forecast on track for the overnight hours. Clear skies and frigid temperatures. Already down to 1 degree above zero at Orange, MA and 5 degrees at Chicopee, MA. It was 3 below zero up in Jaffrey, NH!

SHORT TERM /6 AM THIS MORNING THROUGH 6 PM MONDAY/. 320 PM update .

Sunday .

Deep layer ridge moves across the area during the morning. Thus dry weather prevails along with abundant sunshine. However it will be a very cold start to the day. Not much of a temp recovery as 1030+ mb high over southeast MA limits boundary layer mixing given subsidence inversion. So temps only 3-5 degs higher tomorrow with highs in the mid to upper 30s, low 30s high terrain. Winds become SSW during the afternoon, fairly light but will increase late in the day especially from Cape Ann to Cape Cod in eastern MA.

Sunday night .

Enough deep layer ridging nearby to support dry weather thru the evening. However increasing return SW flow aloft will result in the risk for showers late Sunday night and especially toward Monday morning on nose of approaching low level jet. Given this low level WAA pattern temps will actually rise overnight thru the 30s and into the low 40s along the south coast toward Monday morning.

LONG TERM /MONDAY NIGHT THROUGH SATURDAY/.

Big Picture .

Broad upper trough digs over the Plains and Great Lakes Monday night and Tuesday while an upper ridge sits over the Western Atlantic. This creates a southwest flow aloft across the Eastern USA and brings milder air into Southern New England. The upper trough moves east midweek, crossing New England Thursday. Less agreement on the pattern for Friday-Saturday, but possibly a trough digs over the Plains, then sweeps east to New England over next weekend.

Above normal 500-mb heights Tuesday fall below normal Thursday- Friday before increasing again on Saturday. So the deep layer is expected to be mild Tuesday, then falling below normal late week with signs of a recovery by Saturday.

Mass fields and thermal fields in the models are similar through midweek but then show some model-to-model differences late in the week. This means moderate confidence through Tuesday, then diminishing to low confidence by Friday and Saturday.

Daily Concerns .

Monday night-Tuesday .

Two features of note Monday night. One is a strong southerly low- level jet moving up the coast over Southern New England. This provides an inflow of moisture with PW values between 1 and 1.25 inches as well as low level forcing and lift. The second is a strong 150-kt upper jet moving east from the Plains and eventually curving up over Southern New England. The left exit region of this jet moves over us Monday evening and night, also generating lift. Temperatures will be above freezing through the lowest 10 thousand feet, so high confidence the precip type will be rain/showers.

Low level south to southwest winds reach 60 kt within a couple of thousand feet of the surface, with highest values just offshore. Lapse rates will be near moist adiabatic in a shower-filled warm sector. Expect strong wind gusts to be brought to the surface, with gusts of 35 to 45 kt. Values similar to this are forecast at 1000 mb. Thus expect strong gusty winds Monday night and Tuesday.

Guidance also suggests the precipitation comes in two segments: one Monday night followed by a break Tuesday morning and then a second segment of rain/showers late Tuesday and Tuesday night. Total rainfall during this time will be roughly 1 to 2 inches.

Temperatures in the warm sector are indicated by 12C temps at 950 mb. If we have a lapse rate close to isothermal at night, expect nightime min temps in the lows to mid 50s. A similar temperature aloft with a dry adiabatic lapse to the surface would suggest max temps around 60 during the day Tuesday. Will show upper 50s and around 60 in the coastal plain, and mid 50s in Western/Central MA

Tuesday night .

Cold front sweeps through Southern New England Tuesday evening and early night. After it moves through, indications are that it turns parallel to the upper flow just as we move under the right entrance region of the upper jet. This should keep the front nearby overnight and maintain support for precipitation much of the night. With colder air moving in aloft, this may mean a changeover to snow with potential of a couple of inches. Cross sections show the deep column of moisture dries out by 12Z Wednesday, suggesting a diminishing chance of snow by sunrise.

Wednesday-Thursday .

Upper trough and associated cold pool move across New England on Wednesday. This should push any lingering precipitation offshore. Cold pool instability may generate some clouds and scattered rain/snow showers during Wednesday, with best potential in Western and Central MA and areas north of the MA border.

High pressure then builds in with cold and dry weather Thursday.

Friday-Saturday .

GFS shows another coastal system moving up from the south Friday, spreading precipitation into Southern New England with continues into Saturday. The ECMWF is slower with the coastal system, moving precipitation ashore on Saturday. GFS temperatures are borderline, with potential for both rain and snow. The ECMWF temperature show predominently rain. Expect a mix of precipitation on one or both of the days, but with low confidence.

AVIATION /08Z SUNDAY THROUGH THURSDAY/. Forecaster Confidence Levels .

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

Short Term /through Monday/ . High confidence.

0615Z Update:

Overnight . VFR clear.

Sunday . VFR. Light SW winds slowly increasing to 10-15 kt later in the day.

Sunday night . VFR to start becoming lowering to MVFR in scattered showers after midnight. LLWS possible late.

KBOS Terminal . High confidence in TAF.

KBDL Terminal . High confidence in TAF.

Outlook /Monday Night through Thursday/ .

Monday Night: MVFR/IFR conditions possible. Strong winds with local gusts up to 40 kt. RA.

Tuesday: Mainly MVFR, with local VFR possible. Windy with gusts up to 35 kt. SHRA likely.

Tuesday Night: MVFR/IFR conditions possible. Breezy. Chance SHRA, chance SHSN.

Wednesday: Mainly VFR, with areas IFR possible in the morning. Breezy. Chance SHSN, chance SHRA.

Wednesday Night through Thursday: VFR. Breezy.

MARINE. Short Term /through Monday/ . High confidence.

115 AM Update:

Have issued Small Craft Advisories for 5 ft seas that are expected on the outer waters tonight. Have issued a Gale Watch for all coastal waters from Monday afternoon through Monday night. More on that to follow in the next discussion at 4 AM.

Overnight . NW winds 10-15 kts.

Sunday . 1030+ mb high pressure overhead during the morning drifts offshore in the afternoon shifting winds from light/variable to SSW over southern New England in the afternoon. Dry weather and good vsby continue.

Sunday night . high pressure offshore with SSW winds increasing to near 25 kt especially eastern MA waters. Dry weather and good vsby in the evening but showers likely develop late and especially toward Monday morning lowering vsby.

Outlook /Monday Night through Thursday/ .

Monday Night: Moderate risk for gale force winds with gusts up to 40 kt. Rough seas up to 14 ft. Rain. Local visibility 1 to 3 nm.

Tuesday: Moderate risk for gale force winds with gusts up to 35 kt. Rough seas up to 14 ft. Chance of rain showers.

Tuesday Night: Moderate risk for Small Craft Advisory winds with gusts up to 30 kt. Rough seas up to 11 ft. Rain showers likely.

Wednesday: Moderate risk for Small Craft Advisory winds with gusts up to 25 kt. Areas of rough seas. Chance of rain showers, chance of snow showers. Local visibility 1 to 3 nm.

Wednesday Night: Moderate risk for Small Craft Advisory winds with gusts up to 25 kt. Areas of rough seas. Slight chance of snow showers. Local visibility 1 to 3 nm.

Thursday: Low risk for Small Craft Advisory winds with gusts up to 25 kt. Local rough seas.

BOX WATCHES/WARNINGS/ADVISORIES. CT . None. MA . None. RI . None. MARINE . Gale Watch from Monday afternoon through late Monday night for ANZ231>235-237-250-251-254>256. Gale Watch from Monday afternoon through late Monday night for ANZ230-236. Small Craft Advisory from 9 PM this evening to 1 PM EST Monday for ANZ250. Small Craft Advisory from 11 PM this evening to 1 PM EST Monday for ANZ254>256.

SYNOPSIS . WTB/Nocera/GAF NEAR TERM . Nocera/Loconto/GAF SHORT TERM . Nocera LONG TERM . WTB AVIATION . WTB/Nocera/GAF MARINE . WTB/Nocera/GAF


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
BUZM3 - Buzzards Bay, MA 4 mi73 min NNW 11 G 12 29°F 1033.2 hPa (+1.0)
NWPR1 - 8452660 - Newport, RI 17 mi73 min NNW 5.1 G 8 27°F 39°F1033 hPa (+1.0)
FRXM3 18 mi73 min 26°F 15°F
PRUR1 18 mi73 min 25°F 13°F
BLTM3 - 8447387 - Borden Flats Light at Fall River, MA 19 mi73 min NW 6 G 7 25°F 1033.1 hPa (+1.0)
BZBM3 - 8447930 - Woods Hole, MA 19 mi73 min 28°F 41°F1032.6 hPa (+1.0)
FRVM3 - 8447386 - Fall River, MA 19 mi73 min 24°F 43°F1033.2 hPa (+0.9)
NAXR1 - Narragansett Bay Reserve, RI 21 mi88 min NNW 2.9 23°F 1033 hPa14°F
PTCR1 - 8452951 - Potter Cove, Prudence Island, RI 21 mi73 min N 2.9 G 4.1 24°F 1033.6 hPa (+0.9)
QPTR1 - 8454049 - Quonset Point, RI 22 mi79 min NW 5.1 G 8 25°F 43°F1033.2 hPa
WAXM3 - Waquoit Bay Reserve, MA 28 mi88 min WNW 1.9 28°F 1032 hPa
PVDR1 30 mi73 min NW 4.1 G 5.1 22°F 1033.4 hPa (+1.0)13°F
FOXR1 - 8454000 - Providence, RI 31 mi73 min NW 7 G 8.9 23°F 44°F1033.2 hPa (+1.0)
44097 - Block Island, RI (154) 34 mi43 min 52°F2 ft
44020 - NANTUCKET SOUND 39 mi93 min 18 G 21 30°F 2 ft16°F
44090 45 mi43 min 46°F3 ft

Wind History for Newport, RI
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Newport, Newport State Airport, RI15 mi20 minN 010.00 miFair22°F14°F71%1032.9 hPa
New Bedford, New Bedford Regional Airport, MA16 mi20 minN 010.00 miFair16°F12°F84%1032.7 hPa
Marthas Vineyard Airport, MA21 mi20 minNNW 510.00 miFair24°F12°F60%1032.8 hPa

Link to 5 minute data for KUUU

Wind History from UUU (wind in knots)
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Tide / Current Tables for Penikese Island, Buzzards Bay, Massachusetts
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Penikese Island
Click for Map
Sun -- 03:00 AM EST     Moonset
Sun -- 04:24 AM EST     3.42 feet High Tide
Sun -- 06:57 AM EST     Sunrise
Sun -- 10:21 AM EST     0.43 feet Low Tide
Sun -- 02:23 PM EST     Moonrise
Sun -- 04:13 PM EST     Sunset
Sun -- 04:43 PM EST     3.08 feet High Tide
Sun -- 10:14 PM EST     0.17 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.91.52.22.93.43.32.81.91.20.60.40.50.71.11.72.42.93.12.61.910.40.20.2

Tide / Current Tables for Westport River Entrance, Massachusetts Current
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Westport River Entrance
Click for Map
Sun -- 03:01 AM EST     Moonset
Sun -- 03:16 AM EST     2.24 knots Max Flood
Sun -- 05:31 AM EST     -0.01 knots Slack
Sun -- 06:57 AM EST     Sunrise
Sun -- 07:59 AM EST     -2.42 knots Max Ebb
Sun -- 12:20 PM EST     0.00 knots Slack
Sun -- 02:24 PM EST     Moonrise
Sun -- 03:43 PM EST     2.28 knots Max Flood
Sun -- 04:14 PM EST     Sunset
Sun -- 05:59 PM EST     -0.01 knots Slack
Sun -- 08:21 PM EST     -2.30 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.10.91.72.220.8-0.8-2-2.4-2.1-1.6-1-0.30.51.42.12.21.5-0-1.5-2.2-2.2-1.7-1.1

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 (3,6,7,8)
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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.