Monday, January20, 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 7:05AMSunset 4:43PM Monday January 20, 2020 6:11 AM EST (11:11 UTC) Moonrise 4:13AMMoonset 2:07PM Illumination 23% Phase: Waning Crescent; Moon at 25 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- 338 Am Est Mon Jan 20 2020
.small craft advisory in effect until 9 am est this morning...
Today..NW winds 15 to 20 kt, diminishing to 10 to 15 kt this afternoon. Gusts up to 25 kt. Waves around 2 ft.
Tonight..NW winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft.
Tue..NW winds 5 to 10 kt. Waves 1 foot or less.
Tue night..NW winds around 5 kt. Waves 1 foot or less.
Wed..NW winds around 5 kt, becoming ne around 5 kt in the afternoon. Waves 1 foot or less.
Wed night..S winds around 5 kt, becoming W after midnight. Waves 1 foot or less.
Thu through Fri night..NE winds 5 to 10 kt. Waves around 2 ft, except 3 to 5 ft at the outer harbor entrance. 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 338 Am Est Mon Jan 20 2020
Synopsis for massachusetts and rhode island coastal waters.. Low pres near the ma coastline will progress east today. High pres then builds in late this afternoon through Tuesday. 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 CDP, MA
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location: 42.26, -70.89     debug


Area Discussion for - Boston, MA
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FXUS61 KBOX 200853 AFDBOX

Area Forecast Discussion National Weather Service Boston/Norton MA 353 AM EST Mon Jan 20 2020

SYNOPSIS. Dry, but cold weather is on tap for today and Tuesday as high pressure slowly builds in from the west. Temperatures will begin to moderate Wednesday and especially by Thursday/Friday, but dry weather will persist. There is the potential for a coastal storm this weekend, but uncertainty exists in regards to timing and precipitation types.

NEAR TERM /UNTIL 6 PM THIS EVENING/. Compact upper level shortwave trough evident in water vapor imagery now progressing off the eastern MA coastline. This feature had interacted with an inverted trough/sfc theta-e boundary progressing SE from NH/VT overnight, which led to the production of some short- lived scattered flurries/snow showers on its SE progression through Southern New England. This shortwave trough feature is still leading to a generous amount of cloudiness towards Outer Cape Cod, with skies clearing through NW downsloping across most of interior MA, CT into RI. A continued threat for scattered snow showers still remains across the Outer Cape from Provincetown to Hyannis eastward through the rest of the morning per recent HRRR and the consensus of several CAM solutions. Any accumulations not totalling more than an inch.

Cold and dry air mass advecting in on NW flow related to the passage of the compact trough, with 925 mb temps -11 to -13C progged across Southern New England today. After a chilly start with current temperatures running in the mid teens to lower 20s, plenty of sun boosts temps into the upper teens to mid/upper 20s, highest across Cape Cod and the Islands into the MA coastal plain. Despite the cold advection, mixing heights are progged to be pretty low. Still expect NW gusts of 20-25 mph in the interior, and in the upper 20s mph towards coastal MA, Cape Cod and the Islands. However as we move through the day, should see less gustiness as mixed layer wind speeds diminish and ridging noses into the region.

SHORT TERM /6 PM THIS EVENING THROUGH 6 PM TUESDAY/. Tonight through Tuesday:

Surface ridge, extending E from a strong 1044 mb high pressure area centered over the Northern U.S. Plains, will remain across much of New England through the short-term forecast period. High pressure weakens/modifies as it moves southeastward towards the central Appalachians by late Tuesday. Cyclonic flow aloft is maintained through the period as well, with some reinforcement of the trough aloft being delivered by a shortwave disturbance which moves quickly southeastward into northern NH through ME late tonight into Tuesday.

All told, this looks to be a continued chilly but also a fairly tranquil stretch of weather. Plenty of sun during the day, and clear/calm conditions at night supporting near optimal radiational cooling and cold low temps. Lingering NW winds around 10-15 mph early tonight will continue to lighten and eventually become light and variable into Tuesday.

Temperatures will be below-average compared to typical late-January climatology. Under good radiational cooling, low temperatures in the single digits across north-central and northwest MA under a light snowpack, with lower teens otherwise common in the interior into the coastal plain. Lows on the Cape and the Islands into the upper teens to low 20s. Highs Tuesday under plentiful sun then rebound back into the 20s.

LONG TERM /TUESDAY NIGHT THROUGH SUNDAY/. Highlights .

* Moderating temps begin Wed with above normal temps Thu/Fri along with continued dry weather

* Potential coastal storm this weekend would favor more rain than snow along the I-95 corridor but uncertain across the interior

Details .

Wednesday through Friday .

Large high pressure will remain in control Wed/Thu and Fri. This will maintain dry/tranquil weather, but temperatures will moderate as some upper level ridging builds into southern New England. High temps should recover well into the 30s Wed and then into the 40s by Thu/Fri. Weak gradient may allow for sea breeze development, so could be some cooling along the very immediate coast during the afternoon. Regardless, given light winds and above normal temperatures it will feel rather comfortable outside during Thu and Fri afternoons for late January standards.

This Weekend .

The long range guidance/ensembles continue to indicate the potential for a coastal storm to impact southern New England sometime this weekend. Given this is still 5 to 6 days in the future, uncertainty exists on potential timing, ptype, and amounts. The one thing we can say is that the antecedent airmass ahead of this potential storm will be relatively mild for January standards. This is a result of a deep Alaskan trough allowing for modified Pacific air across our region. That being said, there does appear to be a surface high pressure located across eastern Canada. Depending on its exact positioning and track of the potential coastal storm, just enough cold air may result in the threat for snow/ice across parts of the interior. While snow can not be ruled out along the coastal plain too, rain would be favored unless the low pressure system would be ideal for winter weather.

So in a nutshell, this potential storm is still 5 to 6 days in the future and not a guarantee the we are impacted. There is some blocking to the north, so this does have the potential to be a slow moving coastal storm. Ptype would favor more rain than snow along the coastal plain, but greater uncertainty further back into the interior.

AVIATION /09Z MONDAY THROUGH FRIDAY/. Forecaster Confidence Levels .

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

09Z TAF Update:

Through 12z: High confidence.

Generally VFR at most terminals, though BKN/OVC VFR-MVFR ceilings at BAF-CEF-BDL and out on the Outer Cape. May see some light -SHSN across the Outer Cape as well but not expected to reduce visibilities below 6 SM. NW winds around 9-15 kt, gusts 20-28 kt (higher end of that range at ACK).

Today: High confidence.

Any leftover MVFR ceilings with iso/sct -SHSN on the Outer Cape through the morning hrs gives way to VFR by afternoon. Otherwise, VFR elsewhere. NW winds around 9-15 kt, gusts to 20-25 kt through the AM. Gusts subside thru aftn with sustained speeds 8-11 kt.

Tonight: High confidence.

VFR. NW winds 8-10 kt early becoming 5-8 kt in the interior. NW winds stay around 10 kt through the overnight.

Tuesday: High confidence.

VFR. NW winds become light/variable late.

KBOS Terminal . High confidence in TAF.

KBDL Terminal . High confidence in TAF.

Outlook /Tuesday Night through Friday/ .

VFR.

MARINE. SCAs remain in effect for all waters except Narrangsett Bay. Though NW gusts may briefly increase through mid-morning, should be able to peel away/remove these SCAs as winds subside today. Seas over 5 ft will continue on the outer waters through late tonight/early Tuesday AM.

Today: NW winds 15-20 kt with gusts 25-30 kt early, then subsiding to 15-25 kt gusts late today, higher on outer waters. Seas 4-8 ft, highest on the outer eastern/southeast waters, around 1-2 ft nearshore. Few snow showers reducing visibility to around 4-6 mi near/east of Cape Cod. Light freezing spray.

Tonight: NW winds 10-15 kt gusts 15-25 kt early, then subsiding to 20 kt gusts by overnight. Seas 4-6 ft. Good visibility.

Tuesday: NW winds around 10 kt decrease to light NW. Seas decrease to 2-4 ft on offshore waters, around a foot nearshore. Good visibility.

Outlook /Tuesday Night through Friday/ .

Tuesday Night through Wednesday Night: Winds less than 25 kt.

Thursday: Winds less than 25 kt. Seas locally approaching 5 ft.

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

Friday: Winds less than 25 kt. Seas up to 5 ft.

BOX WATCHES/WARNINGS/ADVISORIES. CT . None. MA . None. RI . None. MARINE . Small Craft Advisory until 1 PM EST this afternoon for ANZ231>234. Small Craft Advisory until 9 AM EST this morning for ANZ230. Small Craft Advisory until 10 AM EST this morning for ANZ235- 237. Small Craft Advisory until 6 AM EST Tuesday for ANZ250-254-255. Small Craft Advisory until 1 AM EST Tuesday for ANZ251. Small Craft Advisory until 7 PM EST this evening for ANZ256.

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


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
BHBM3 - 8443970 - Boston, MA 11 mi53 min 18°F 38°F1015.3 hPa
44013 - BOSTON 16 NM East of Boston, MA 14 mi81 min NW 21 G 27 21°F 44°F5 ft1014.1 hPa (+1.3)13°F
44029 - Buoy A0102 - Mass. Bay/Stellwagen 25 mi127 min NNW 21 G 27 21°F 42°F5 ft1012.2 hPa
44018 - SE Cape Cod 30NM East of Nantucket, MA 40 mi81 min NW 19 G 23 24°F 6 ft1013.2 hPa (+1.4)14°F
BLTM3 - 8447387 - Borden Flats Light at Fall River, MA 41 mi53 min 21°F 1016.4 hPa
FOXR1 - 8454000 - Providence, RI 41 mi53 min 18°F 40°F1016.9 hPa
FRVM3 - 8447386 - Fall River, MA 41 mi59 min 21°F 39°F1016.5 hPa
44090 42 mi41 min 41°F6 ft
FRXM3 42 mi59 min 21°F 10°F
PVDR1 42 mi53 min 18°F 1017.1 hPa6°F
CPTR1 - 8452944 - Conimicut Light, RI 45 mi53 min 20°F 38°F
NAXR1 - Narragansett Bay Reserve, RI 49 mi86 min N 8.9 19°F 1016 hPa8°F
PTCR1 - 8452951 - Potter Cove, Prudence Island, RI 49 mi53 min 19°F 1017.3 hPa

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
Boston, Logan International Airport, MA11 mi17 minNW 13 G 2210.00 miA Few Clouds19°F3°F52%1017.4 hPa
Norwood, Norwood Memorial Airport, MA16 mi18 minNNW 810.00 miFair19°F3°F49%1017.3 hPa
Marshfield Airport, MA16 mi36 minNNW 810.00 miFair19°F6°F58%1016.3 hPa
Beverly, Beverly Municipal Airport, MA22 mi18 minNW 1010.00 miFair15°F3°F59%1016.5 hPa

Link to 5 minute data for KBOS

Wind History from BOS (wind in knots)
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NW8NW6NW5CalmS4SE4S6S7S5SW4SE9--SE11SE10SE11S8S6W3NW12NW7NW7W6W5
2 days agoNW23
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Tide / Current Tables for Crow Point, Hingham Harbor entrance, Massachusetts
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Crow Point
Click for Map
Mon -- 12:52 AM EST     0.53 feet Low Tide
Mon -- 03:13 AM EST     Moonrise
Mon -- 07:07 AM EST     Sunrise
Mon -- 07:12 AM EST     10.29 feet High Tide
Mon -- 01:07 PM EST     Moonset
Mon -- 01:40 PM EST     -0.02 feet Low Tide
Mon -- 04:41 PM EST     Sunset
Mon -- 07:53 PM EST     8.90 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.10.51.32.95.17.59.410.39.98.76.74.31.90.300.92.54.76.98.58.98.375.1

Tide / Current Tables for Boston Harbor, Massachusetts Current
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Boston Harbor
Click for Map
Mon -- 12:48 AM EST     0.00 knots Slack
Mon -- 03:13 AM EST     Moonrise
Mon -- 04:12 AM EST     1.07 knots Max Flood
Mon -- 06:50 AM EST     -0.00 knots Slack
Mon -- 07:07 AM EST     Sunrise
Mon -- 11:16 AM EST     -1.26 knots Max Ebb
Mon -- 01:07 PM EST     Moonset
Mon -- 01:26 PM EST     0.00 knots Slack
Mon -- 04:42 PM EST     Sunset
Mon -- 04:47 PM EST     1.05 knots Max Flood
Mon -- 07:29 PM EST     -0.00 knots Slack
Mon -- 11:43 PM EST     -1.14 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.70.20.811.10.90.5-0.1-0.5-0.8-1.1-1.2-1.1-0.40.40.8110.70.2-0.2-0.6-0.8-1.1

Weather Map
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wmap_A
GEOS 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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Boston, MA (6,6,7,8)
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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 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.