Sunday, July12, 2020
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Marine Weather and Tides
Hingham, 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 5:17AMSunset 8:21PM Sunday July 12, 2020 7:22 AM EDT (11:22 UTC) Moonrise 12:13AMMoonset 12:40PM Illumination 55% Phase: Waning Gibbous; Moon at 22 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 Sun Jul 12 2020
.small craft advisory in effect from 11 am this morning to 6 pm edt this evening...
Today..SW winds 10 to 15 kt with gusts up to 25 kt. Waves around 2 ft.
Tonight..SW winds 5 to 10 kt. Gusts up to 20 kt in the evening. Waves around 2 ft in the evening, then 1 foot or less.
Mon..S winds 5 to 10 kt. Waves 1 foot or less, then around 2 ft in the afternoon. A chance of showers and tstms in the afternoon. Some tstms may produce gusty winds and heavy rainfall in the afternoon.
Mon night..W winds around 5 kt. Waves around 2 ft in the evening, then 1 foot or less. A chance of showers and tstms in the evening. Some tstms may produce gusty winds and heavy rainfall in the evening.
Tue..NW winds around 5 kt, becoming N in the afternoon. Waves 1 foot or less. A chance of showers in the afternoon.
Tue night..N winds 5 to 10 kt. Waves 1 foot or less. A chance of showers in the evening.
Wed..NE winds 5 to 10 kt. Waves 1 foot or less.
Wed night..E winds around 5 kt, becoming S after midnight. Waves 1 foot or less.
Thu..S winds 5 to 10 kt. Waves 1 foot or less, then around 2 ft in the afternoon.
Thu night..S winds 5 to 10 kt. Waves around 2 ft in the evening, then 1 foot or less. A chance of showers after midnight. Winds and waves higher in and near tstms. 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 Sun Jul 12 2020
Synopsis for massachusetts and rhode island coastal waters.. High seas and gusty winds will impact mostly the south coast and outer eastern waters through tonight. A 'high surf advisory' will go be in effect between 8am to 8pm today for surf zone waves between 5 to 6 feet. Additionally, those entering the water should be aware of dangerous rip currents. A cold front will cross the waters early Sunday and another cold front crosses the water Monday. Warm front lifts north on Wednesday. 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 Hingham, MA
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location: 42.26, -70.89     debug


Area Discussion for - Boston, MA
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FXUS61 KBOX 121057 AFDBOX

Area Forecast Discussion National Weather Service Boston/Norton MA 657 AM EDT Sun Jul 12 2020

SYNOPSIS. Plenty of sunshine will yield hot afternoon with many locations reaching into the lower 90s. Dry weather persists tonight, but a cold front dropping south will bring scattered showers and thunderstorms to the region Monday afternoon. More unsettled weather is expected Tuesday, but high pressure then brings fair weather for Wednesday and possibly Thursday. Scattered showers and thunderstorms return on Friday and Saturday.

NEAR TERM /UNTIL 6 PM THIS EVENING/. \

7 am update .

We're off to a warm start, with sfc observations showing temperatures in the low to mid 70s east . upper 60s west.Low clouds are just about cleared out; should be out of the cape and islands within the hour. Plenty of sun on tap today. Forecast is on track with no major changes needed.

Previous Discussion .

* Heat Advisory today for much of Eastern MA & parts of RI today

A shortwave rotating across northern New England was bringing rain to much of northern NY this morning. This area of rain will lift northeast and miss our region this morning, but a low risk for a spot shower/sprinkle exists across far northwest MA this morning.

As this shortwave lifts well to our north today winds will veer out in the low levels. This has already allowed low clouds to scour out across much of the region. The fog across the south coast/Cape and Islands should lift over the next few hours. Otherwise, partly to mostly sunny skies and southwest flow will result in a hot day. High temperatures should reach into the lower 90s across many locations with readings a few degrees lower in the high terrain & near the south coast, Cape and Islands.

As the winds veer to the southwest, the dewpoints will drop into the 60s which will reduce the humidity a bit. Nonetheless, high temperatures reaching the lower 90s will still result in heat index values around 95 degrees across portion of eastern MA/RI. Since this will be the second day of 95+ heat index, we have opted to issue a Heat Advisory for this region today. Southwest wind gusts around 25 mph will provide a bit of relief at times, but still a hot day in store for the region.

Dry weather should prevail today given very dry mid level air and the lack of synoptic scale forcing. Low risk of a spot shower/t- storm in far northwest MA, but nothing more than that expected.

High Surf .

A high surf advisory is in effect for ocean exposed beaches on the south coast, Cape and Islands today. Long period left over southerly swell will result in high surf and dangerous rip currents again today.

SHORT TERM /6 PM THIS EVENING THROUGH 6 PM MONDAY/. * Scattered thunderstorms develop Monday afternoon and a few may be strong to severe with a very localized flash flood threat

Tonight .

Shortwave ridging should keep our weather dry/tranquil tonight. A bit less muggy than the past few nights and expect overnight lows to bottom out mainly in the middle to upper 60s.

Monday .

The main concern will be the convective threat Monday afternoon. A shortwave trough approaches from the southwest and will combined with enough diurnal heating for about 1000 to 1500 J/KG of Cape. A weak boundary will also slide south and provide a focus for scattered showers and thunderstorm developing Monday afternoon.

Assessing the severe weather potential indicates mixed signals as we often see in southern New England. Mid level lapse rates are rather weak which will be a limiting factor, but 0-6 KM shear values of 35 to 40 knots are pretty good for mid July standards. The HREF/NAM also indicates some 2-5 KM Updraft Helicity Swaths. So while not expecting a widespread severe weather outbreak, a few strong to severe thunderstorms are possible with the main threat being localized damaging wind gusts. In addition, there is also a signal in the models for the potential of thunderstorms to train with southwest flow aloft overriding the boundary with Pwats near 2 inches. This will bring the potential for very localized flash flooding if thunderstorms train over a particular location, especially a typically vulnerable spot.

LONG TERM /MONDAY NIGHT THROUGH SATURDAY/. Highlights .

* Scattered showers and thunderstorms on Tuesday before drier conditions return Wed-Thu

* Next chance of precipitation comes Thursday night into Friday

* Warmer temperatures and increased humidity late week into the weekend

Details .

More amplified flow continues Tuesday and Wednesday as another trough crosses the region Tuesday followed by weak ridging Wed into Thursday. Beyond that the pattern becomes quite zonal across the country with high pressure in place at the surface. A shallow shortwaves crosses New England late in the week bringing rain chances around Thursday night/Friday along with more heat and humidity as we approach the weekend.

Late Monday night into early Tuesday the shortwave axis finally crosses southern New England while at the surface the low pressure center lifts into the maritimes. A cold pool aloft together with diurnal heating will provide enough instability with the 500 mb vort max overhead and convergence around the low level circulation to lead to showers and thunderstorms on Tuesday. Drier air aloft than on Monday and lesser convective parameters but still could see a few strong storms.

Tuesday night into Wednesday things dry out as heights will be on the rise with an incoming mid level ridge. At the sfc high pressure builds south from Canada keeping things dry through at least Thursday. Flow around the high keeps winds out of the northeast, onshore for the east coast which will keep eastern MA cooler than inland areas. By Thursday night rain chances return as another shortwave crosses New England. The associated sfc low lifts from the Great Lakes into Canada directing warm and moist return flow back into the region Friday pumping up the heat and humidity until the cold front moves through toward the weekend.

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

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

12Z Update .

Today . High confidence. VFR today after lingering lower clouds/fog patches scour out by 13Z. SW wind gusts of 20 to 25 knots develop by afternoon.

Tonight . High confidence. VFR with light SW winds.

Monday . Moderate confidence. While VFR are expected much of the time, scattered showers & thunderstorms are expected to develop during the afternoon. A few of the thunderstorms may become strong and produce localized torrential rainfall. This will result in locally much lower cigs/vsbys.

KBOS Terminal . High confidence in TAF.

KBDL Terminal . High confidence in TAF.

Outlook /Monday Night through Thursday/ .

Monday Night: VFR. Slight chance SHRA, isolated TSRA.

Tuesday: VFR. Chance SHRA, slight chance TSRA.

Tuesday Night through Wednesday Night: VFR.

Thursday: VFR. Slight chance SHRA.

MARINE. Today . High confidence. Strong surface heating will yield SW wind gusts of 20 to 25 knots later this morning and afternoon with a few gusts near 30 knots possible across our nearshore south coastal waters. Strongest of the wind gusts will be nearshore and also expect 3 to 6 foot seas over the open waters. SCA headlines posted for all our waters.

Tonight and Monday . High confidence. SCA wind gusts diminish tonight, but will need to continue marine headlines for our southern waters. This a result of southerly swell continuing to result in 3 to 6 foot seas.

Outlook /Monday Night through Thursday/ .

Monday Night: Winds less than 25 kt. Local rough seas. Chance of rain showers, slight chance of thunderstorms.

Tuesday: Winds less than 25 kt. Areas of seas approaching 5 ft. Slight chance of rain showers, isolated thunderstorms.

Tuesday Night: Winds less than 25 kt. Areas of seas approaching 5 ft.

Wednesday: Winds less than 25 kt. Seas locally approaching 5 ft. Slight chance of rain showers.

Wednesday Night through Thursday: Winds less than 25 kt.

BOX WATCHES/WARNINGS/ADVISORIES. CT . None. MA . High Surf Advisory until 8 PM EDT this evening for MAZ020- 022>024. Heat Advisory from 11 AM this morning to 6 PM EDT this evening for MAZ005>007-013>019. RI . High Surf Advisory until 8 PM EDT this evening for RIZ006>008. Heat Advisory from 11 AM this morning to 6 PM EDT this evening for RIZ001>005. MARINE . Small Craft Advisory until 8 PM EDT this evening for ANZ231>234-251. Small Craft Advisory from 11 AM this morning to 6 PM EDT this evening for ANZ230-236. Small Craft Advisory until 8 PM EDT Monday for ANZ235-237- 254>256. Small Craft Advisory until 2 AM EDT Monday for ANZ250.

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


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
BHBM3 - 8443970 - Boston, MA 11 mi52 min 76°F 70°F1001.6 hPa
44013 - BOSTON 16 NM East of Boston, MA 14 mi92 min S 12 G 14 70°F 67°F2 ft1001.7 hPa (+0.0)70°F
44029 - Buoy A0102 - Mass. Bay/Stellwagen 25 mi78 min SSW 12 G 14 68°F 3 ft1000.3 hPa
44018 - SE Cape Cod 30NM East of Nantucket, MA 40 mi92 min SSW 14 G 18 68°F 3 ft1003.4 hPa (-0.4)68°F
BLTM3 - 8447387 - Borden Flats Light at Fall River, MA 41 mi52 min S 8.9 G 11 73°F 1004.1 hPa
FOXR1 - 8454000 - Providence, RI 41 mi52 min WSW 6 G 9.9 75°F 76°F1004 hPa
FRVM3 - 8447386 - Fall River, MA 41 mi52 min 73°F 77°F1004.3 hPa
44090 42 mi55 min 68°F1 ft
FRXM3 42 mi52 min 73°F 71°F
PVDR1 42 mi52 min S 6 G 9.9 75°F 1004.1 hPa71°F
CPTR1 - 8452944 - Conimicut Light, RI 45 mi52 min 73°F 77°F1004 hPa
NAXR1 - Narragansett Bay Reserve, RI 49 mi97 min WSW 6 72°F 1004 hPa71°F
PTCR1 - 8452951 - Potter Cove, Prudence Island, RI 49 mi52 min WSW 5.1 G 8 73°F 1004.7 hPa

Wind History for Borden Flats Light at Fall River, MA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Boston, Logan International Airport, MA11 mi28 minSSW 1410.00 miA Few Clouds74°F69°F85%1002.8 hPa
East Milton, MA12 mi31 minSSW 12 G 19 mi71°F69°F94%1004 hPa
Norwood, Norwood Memorial Airport, MA16 mi29 minSSW 810.00 miA Few Clouds76°F69°F79%1003 hPa
Marshfield Airport, MA16 mi27 minSW 810.00 miPartly Cloudy75°F71°F89%1003 hPa
Beverly, Beverly Municipal Airport, MA22 mi29 minSSW 1010.00 miPartly Cloudy75°F69°F82%1001.7 hPa

Link to 5 minute data for KBOS

Wind History from BOS (wind in knots)
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1 day agoCalmSE3E5E7E9E15E13E14E13E13E14E13E13E13E11E14E17E9E10E10E9SE10SE12S11
2 days agoSW8W54SE9SE7E12E10E8E9E6SE7S12S11S9S8SW7S5SW7S5S4S5S7S6S5

Tide / Current Tables for Crow Point, Hingham Harbor entrance, Massachusetts
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Crow Point
Click for Map
Sun -- 12:12 AM EDT     Moonrise
Sun -- 05:09 AM EDT     9.03 feet High Tide
Sun -- 05:18 AM EDT     Sunrise
Sun -- 11:25 AM EDT     1.14 feet Low Tide
Sun -- 12:40 PM EDT     Moonset
Sun -- 05:41 PM EDT     8.99 feet High Tide
Sun -- 07:31 PM EDT     Last Quarter
Sun -- 08:19 PM EDT     Sunset
Sun -- 11:53 PM EDT     1.66 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.13.456.78.398.77.55.94.12.31.31.42.43.95.77.58.78.98.26.95.33.52.1

Tide / Current Tables for Boston Harbor, Massachusetts Current
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Boston Harbor
Click for Map
Sun -- 12:13 AM EDT     Moonrise
Sun -- 02:23 AM EDT     0.93 knots Max Flood
Sun -- 04:52 AM EDT     -0.00 knots Slack
Sun -- 05:18 AM EDT     Sunrise
Sun -- 09:27 AM EDT     -1.02 knots Max Ebb
Sun -- 11:28 AM EDT     0.00 knots Slack
Sun -- 12:40 PM EDT     Moonset
Sun -- 02:48 PM EDT     0.98 knots Max Flood
Sun -- 05:23 PM EDT     -0.00 knots Slack
Sun -- 07:31 PM EDT     Last Quarter
Sun -- 08:20 PM EDT     Sunset
Sun -- 09:56 PM EDT     -1.04 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.60.90.90.90.5-0.1-0.4-0.7-0.9-1-1-0.40.40.90.910.70.2-0.3-0.6-0.8-0.9-1-0.8

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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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Boston, MA (7,2,3,4)
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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.