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Marine Weather and Tides
Version 3.4 |
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 5:56AM | Sunset 7:36PM | Wednesday August 21, 2019 8:16 AM EDT (12:16 UTC) | Moonrise 10:45PM | Moonset 11:35AM | Illumination 67% |  |
ANZ234 Buzzards Bay- 716 Am Edt Wed Aug 21 2019
Today..S winds 5 to 10 kt. Seas around 2 ft. A chance of showers with a slight chance of tstms this afternoon. Some tstms may produce gusty winds and heavy rainfall this afternoon.
Tonight..SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Patchy fog. A chance of showers.
Thu..SW winds around 10 kt. Gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. A chance of showers.
Thu night..SW winds 5 to 10 kt with gusts up to 20 kt, becoming nw after midnight. Seas 2 to 3 ft. A chance of showers.
Fri..W winds 5 to 10 kt. Seas around 2 ft. A chance of showers.
Fri night..NW winds 5 to 10 kt. Seas around 2 ft.
Sat through Sun..NE winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Winds and seas 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.
Today..S winds 5 to 10 kt. Seas around 2 ft. A chance of showers with a slight chance of tstms this afternoon. Some tstms may produce gusty winds and heavy rainfall this afternoon.
Tonight..SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Patchy fog. A chance of showers.
Thu..SW winds around 10 kt. Gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. A chance of showers.
Thu night..SW winds 5 to 10 kt with gusts up to 20 kt, becoming nw after midnight. Seas 2 to 3 ft. A chance of showers.
Fri..W winds 5 to 10 kt. Seas around 2 ft. A chance of showers.
Fri night..NW winds 5 to 10 kt. Seas around 2 ft.
Sat through Sun..NE winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Winds and seas 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 Wed Aug 21 2019
Synopsis for massachusetts and rhode island coastal waters.. A warm front will move north this morning drawing warm and very humid air over the waters. This will bring patchy fog as well as showers and scattered Thunderstorms today through Thursday. A cold front then sweeps across the waters sometime Thursday night into early Friday morning. Dry weather and good vsby follows for Friday into the weekend. 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.
Synopsis for massachusetts and rhode island coastal waters.. A warm front will move north this morning drawing warm and very humid air over the waters. This will bring patchy fog as well as showers and scattered Thunderstorms today through Thursday. A cold front then sweeps across the waters sometime Thursday night into early Friday morning. Dry weather and good vsby follows for Friday into the weekend. 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 Marion Center, MA
Hourly EDIT Helplocation: 41.7, -70.74 debug
Area Discussion for - Boston, MA
(on/off) Help NOTE: mouseover dotted underlined text for definition| Fxus61 kbox 211118 afdbox area forecast discussion national weather service boston norton ma 718 am edt Wed aug 21 2019 Synopsis A warm front will push across the region today, bringing scattered showers and thunderstorms along with increasing heat and humidity. A cold front crosses the region on Thursday with another round of scattered showers and thunderstorms, which will linger into early Friday across southern areas as the front slowly pushes offshore. High pressure builds across the northeast, with steady onshore winds bringing cool temperatures into early next week. There may also be a chance for low clouds along with spotty light rain or showers Sunday through Tuesday. Near term until 6 pm this evening 650 am update... area of showers isolated thunderstorms crossing western mass into northern worcester county will continue to shift NE through mid morning as the warm front lifts across the region. Other areas of showers thunderstorms remain across the southern waters early this morning. Then, another area of showers thunderstorms across central W ny into NW pa close to or ahead of pre-frontal trough, which should begin to increase in coverage and intensity as daytime heating kicks in full force through mid morning. Should see a brief break in the action as the early morning convection shifts into S vt nh, then should see area of stronger convection pushing slowly e-se from late morning through the afternoon. Have updated the forecast for today to reflect current trends and incorporated latest hi res model data. Previous discussion... short range models such as the high res WRF show some showers with the increasingly warm, unstable air this morning, distinct from a second round of convection moving west to east this afternoon evening. The second round of precip is associated with a shortwave aloft and surface trough moving through later today this evening. Pre-dawn satellite trends showed a broken layer of clouds with the convection. This along with normal diurnal trends would suggest the Sun will break through any cloud cover and generate the necessary daytime heating. Sb CAPE climbs to 1500-2500 j kg, as has been indicated in previous days, while LI values range from down to -7. Winds aloft show 30 kt at 850 mb and 35 kt at 500 mb. Helicity in the 0-3 km layer shows 150 to 250, a little higher than forecast in past days. Based on this we expect a continued risk of strong damaging thunderstorm winds. Precipitable water values will be around 2 inches today, with with lift generated by the shortwave and trough on an unstable airmass. As such, we continue to see a risk of downpours which could cause poor drainage flooding, especially in areas of thunderstorm training. The best chance of strong winds and downpours would be in NRN ct and central western ma. But aside from that relative comparison, all parts of our forecast area are in play for strong tstms and downpours. Short term 6 pm this evening through 6 pm Thursday The shortwave and surface trough eventually move off to the east tonight, but timing should allow for additional evening convection with strong winds downpours. But this should diminish by midnight. Models show no significant chance in airmass, and dew points will be in the upper 60s and low 70s, so expect a humid night with areas of fog and lows in the upper 60s and low 70s. Closed low over james bay sweeps south and pushes a cold front south into new england. After the morning fog burns off, daytime heating will work on 16-18c 850 temps to warm the surface to the mid 80s to around 90. Low level humidity remains in place. Pw values diminish in the morning, but then climb back to near 2 inches in the afternoon. Instability parameters will not be as beefy as today, but will show 500-1000 j kg in the interior and 1000-1500 j kg in ri SE mass. So expect showers and scattered tstms especially in the afternoon. Long term Thursday night through Tuesday Highlights... * scattered showers and a few thunderstorms linger Thursday night as the cold front slowly crosses * showers linger on Friday with cooler temperatures * expect mild temperatures and dry conditions Saturday * cooler than normal temperatures expected Sunday through Tuesday along with spotty light rain or showers at times details... Thursday night... as the cold front crosses the region, will still see areas of showers and a few lingering thunderstorms, mainly near and south of the mass pike. Will see instability decrease as the front pushes slowly through, but may still see some locally heavy downpours as another deep moisture layer moving across. Pwat plume increases to around 2 inches across N ct ri to E mass as an associated short wave slowly crosses near the slowly moving front. Could see some locally heavy downpours once again with this feature. Friday... as the front becomes nearly parallel with the mid level steering flow, could see leftover showers linger along the S coast, cape cod and the islands through around midday before finally pushing offshore. Expect the back edge of the cloud deck to slowly shift southward, pushing offshore late in the day. Light w-nw winds take over, allowing drier air to move in. Expect temperatures to top off in the 70s, with a few spots touching 80, along with decreasing humidity. Saturday through Tuesday... quite a bit of model solution spread amongst the members this morning, with lends to lower confidence on the forecast during this timeframe. Rather confident with the slow but steady movement of the high pressure across northern new england, setting up across maine |
into eastern quebec and new brunswick late this weekend. This will set up a NE and eventually easterly wind flow by the start of the work week. Could see some gusts up to 20-25 mph across cape cod and the islands, possibly into S coastal areas on Sunday. The big question will be whether patchy light rain and or showers could develop from time to time from Sunday to Tuesday. Where these showers and or rain set up is in question, but have kept slight chance pops going for now. At this point, looks like there might be a somewhat better chance for more organized showers Monday into Tuesday, but not a lot of confidence. With the steady onshore flow, expect temps to run around 5 degrees or so below seasonal normals, mainly from Sunday to Tuesday. Highs on Sunday and Monday may not break 70 at some locations along E coastal mass. Aviation 12z Wednesday through Sunday Forecaster confidence levels... low - less than 30 percent. Moderate - 30 to 60 percent. High - greater than 60 percent. Short term through Thursday ... Moderate confidence. Through 12z...VFR. May see local ifr conditions along the outer cape and nantucket. Today... mainlyVFR, with MVFR to local ifr conditions in showers and scattered thunderstorms. Scattered showers tstms across W mass will shift NE by around 14z-15z. Another round of shra tsra will develop by midday, moving across the region through this afternoon. The best chance for showers tstms will be in n ct and western central mass in the afternoon and evening. A few strong storms are possible with gusty winds, frequent lightning, and heavy downpours. Tonight... MVFRVFR with scattered showers tstms especially in the evening. SW winds gusting to 20 kt, especially over CAPE cod and islands. Thursday... vfr MVFR in the morning...VFR in the afternoon with brief MVFR in showers tstms possible. Kbos terminal... Moderate to high uncertainty in timing and coverage of showers tstms. A few showers storms possible late this morning, but best chance will be mid to late afternoon with areas of MVFR-ifr conditions possible. Kbdl terminal... Moderate to high uncertainty in timing and coverage of showers tstms. Should see mainlyVFR conditions through midday. Best chance for showers storms will be from 18z through 00z with areas of MVFR-ifr conditions. Outlook Thursday night through Sunday ... Moderate confidence Thursday night: mainlyVFR, with local MVFR possible. Slight chance shra. Friday through Sunday:VFR. Marine Forecaster confidence levels... low - less than 30 percent. Moderate - 30 to 60 percent. High - greater than 60 percent. Short term through Thursday ... High confidence. Today... Warm humid air moves back over the waters. South- southwest winds, with some gusts to 20 kt. Expect scattered showers and thunderstorms, with some strong wind gusts and downpours. Vsby 1-3 nm in downpours and patchy fog. Tonight... Showers and thunderstorms diminish after 10 pm. Vsby 1-3 nm in patchy fog. Persistent south to southwest winds will build waves to 5-6 feet, so we have issued a small craft advisory for some of the southern waters. Thursday... Winds continue from the southwest much of the day, ahead of an approaching cold front. Expect another round of showers and scattered thunderstorms. Winds will remain less than 25 kt while seas will be around 5 feet on parts of the southern waters. Outlook Thursday night through Sunday ... Moderate confidence. Thursday night: winds less than 25 kt. Seas locally approaching 5 ft. Chance of rain showers, chance of thunderstorms. Friday through Friday night: winds less than 25 kt. Areas of seas approaching 5 ft. Saturday: winds less than 25 kt. Seas locally approaching 5 ft. Saturday night: winds less than 25 kt. Sunday: winds less than 25 kt. Areas of seas approaching 5 ft. Box watches warnings advisories Ct... None. Ma... None. Ri... None. Marine... Small craft advisory from 8 pm this evening to 8 pm edt Thursday for anz254>256. Small craft advisory from 8 pm this evening to 11 am edt Thursday for anz235-237. Synopsis... Wtb evt near term... Wtb evt short term... Wtb long term... Evt aviation... Wtb evt marine... Wtb evt |
Weather Reporting Stations
EDIT (on/off) Help NOTE: Click on distance to see the station location on a map| Stations | Dist | Age | Wind | Air Temp | Water Temp | Waves | Pressure | DewPt |
| BZBM3 - 8447930 - Woods Hole, MA | 13 mi | 52 min | 75°F | 73°F | 1016.7 hPa | |||
| WAXM3 - Waquoit Bay Reserve, MA | 14 mi | 91 min | Calm | 74°F | 1016 hPa | 73°F | ||
| FRVM3 - 8447386 - Fall River, MA | 22 mi | 52 min | 75°F | 79°F | 1016.7 hPa | |||
| FRXM3 | 23 mi | 52 min | 76°F | 73°F | ||||
| BLTM3 - 8447387 - Borden Flats Light at Fall River, MA | 23 mi | 46 min | SSE 8.9 G 13 | 76°F | 1016.3 hPa | |||
| 44090 | 24 mi | 16 min | 71°F | |||||
| BUZM3 - Buzzards Bay, MA | 26 mi | 76 min | S 8.9 G 8.9 | 73°F | 1016.9 hPa (-0.4) | |||
| 44020 - NANTUCKET SOUND | 28 mi | 26 min | S 7.8 G 9.7 | 74°F | 75°F | 1 ft | 71°F | |
| PRUR1 | 31 mi | 46 min | 75°F | 74°F | ||||
| CPTR1 - 8452944 - Conimicut Light, RI | 32 mi | 46 min | S 7 G 8.9 | 74°F | 77°F | 1016.4 hPa | ||
| NAXR1 - Narragansett Bay Reserve, RI | 32 mi | 91 min | SW 1 | 73°F | 1017 hPa | 72°F | ||
| PTCR1 - 8452951 - Potter Cove, Prudence Island, RI | 32 mi | 46 min | SSW 2.9 G 5.1 | 75°F | 1016.8 hPa | |||
| NWPR1 - 8452660 - Newport, RI | 34 mi | 52 min | SE 6 G 7 | 75°F | 67°F | 1016.2 hPa | ||
| PVDR1 | 35 mi | 46 min | SW 4.1 G 5.1 | 72°F | 1016.5 hPa | 69°F | ||
| FOXR1 - 8454000 - Providence, RI | 36 mi | 46 min | SSW 4.1 G 6 | 73°F | 74°F | 1016.2 hPa | ||
| QPTR1 - 8454049 - Quonset Point, RI | 36 mi | 52 min | SW 1.9 G 1.9 | 71°F | 74°F | 1016.5 hPa | ||
| NTKM3 - 8449130 - Nantucket Island, MA | 45 mi | 52 min | SSE 2.9 G 6 | 74°F | 77°F | 1017 hPa | ||
| 44013 - BOSTON 16 NM East of Boston, MA | 45 mi | 26 min | 70°F | 70°F | 1 ft | 1015 hPa (+0.0) | ||
| 44018 - SE Cape Cod 30NM East of Nantucket, MA | 47 mi | 26 min | S 5.8 G 5.8 | 70°F | 2 ft | 1016.8 hPa (-0.0) | 69°F | |
| BHBM3 - 8443970 - Boston, MA | 48 mi | 52 min | 73°F | 1016.1 hPa |
Wind History for Borden Flats Light at Fall River, MA
(wind in knots) EDIT (on/off) Help| 8 AM | 9 AM | 10 AM | 11 AM | 12 PM | 1 PM | 2 PM | 3 PM | 4 PM | 5 PM | 6 PM | 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 | |
| Last 24hr | NW | NW | NW | NW | W | SW | SW | SW | SW | SW | SW | S | S | SW G8 | SW | SW | SW | S | SW | S | S | S | S | S |
| 1 day ago | SW | SW | SW | SW | SW | S G14 | S G16 | SW G20 | SW G21 | SW | SW | SW | SW G15 | SW | SW | SW | SW | SW | SW | SW | SW | W | SW | NW |
| 2 days ago | SW | SW | SW | S | SW | SW | SW | SW | S | S | S G13 | S G14 | S G13 | SW | SW | SW | S | S G13 | SW G17 | S G13 | S G18 | SW | SW | S |
Airport Reports
EDIT (on/off) Help Click EDIT to display multiple airports. Follow links for more data.| Airport | Dist | Age | Wind kt | Visibility | Sky/Weather | Temp | DewPt | Humidity | Pressure |
| New Bedford, New Bedford Regional Airport, MA | 12 mi | 83 min | N 0 | 0.75 mi | Fog/Mist | 65°F | 64°F | 97% | 1016.3 hPa |
| Otis Air National Guard Base, MA | 12 mi | 81 min | N 0 | 7.00 mi | Fair | 66°F | 66°F | 100% | 1016.6 hPa |
| Plymouth, Plymouth Municipal Airport, MA | 15 mi | 84 min | SSW 4 | 8.00 mi | Partly Cloudy | 71°F | 70°F | 96% | 1016.4 hPa |
| Taunton, Taunton Municipal Airport, MA | 20 mi | 84 min | N 0 | 7.00 mi | A Few Clouds | 65°F | 62°F | 90% | 1016 hPa |
| Marthas Vineyard Airport, MA | 21 mi | 83 min | N 0 | 7.00 mi | Fair | 64°F | 63°F | 96% | 1016.4 hPa |
| Hyannis, Barnstable Municipal-Boardman Airport, MA | 24 mi | 80 min | S 4 | 10.00 mi | Fair | 75°F | 70°F | 84% | 1016.4 hPa |
Link to 5 minute data for KFMH
Wind History from FMH (wind in knots)
| 9 AM | 10 AM | 11 AM | 12 PM | 1 PM | 2 PM | 3 PM | 4 PM | 5 PM | 6 PM | 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 | |
| Last 24hr | NW | NW | N | NE | N G10 | NE | S | S | S | S | S | S | S | S | Calm | Calm | Calm | Calm | Calm | SW | ||||
| 1 day ago | SW | SW | W | SW | W | W | SW | W | W G19 | W G21 | W | W G27 | W G18 | W | W | W | W | W | NW | Calm | NW | |||
| 2 days ago | W | W | NW | NW | S | SW | S | SW | SW | SW | SW | SW | SW | W | SW | SW | SW | SW | SW | SW | SW |
Tide / Current Tables for Great Hill, Buzzards Bay, Massachusetts
EDIT Weekend mode (on/off) (on/off) Help One Week of DataGreat Hill
Click for Map
Wed -- 12:12 AM EDT 3.79 feet High Tide
Wed -- 05:25 AM EDT 0.46 feet Low Tide
Wed -- 05:57 AM EDT Sunrise
Wed -- 11:35 AM EDT Moonset
Wed -- 12:42 PM EDT 4.04 feet High Tide
Wed -- 05:55 PM EDT 0.82 feet Low Tide
Wed -- 07:34 PM EDT Sunset
Wed -- 10:45 PM EDT Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Wed -- 12:12 AM EDT 3.79 feet High Tide
Wed -- 05:25 AM EDT 0.46 feet Low Tide
Wed -- 05:57 AM EDT Sunrise
Wed -- 11:35 AM EDT Moonset
Wed -- 12:42 PM EDT 4.04 feet High Tide
Wed -- 05:55 PM EDT 0.82 feet Low Tide
Wed -- 07:34 PM EDT Sunset
Wed -- 10:45 PM EDT Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
| 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 | 8 pm | 9 pm | 10 pm | 11 pm |
| 3.8 | 3.6 | 3 | 2 | 1 | 0.5 | 0.5 | 1 | 1.6 | 2.3 | 2.9 | 3.5 | 3.9 | 4 | 3.6 | 2.7 | 1.8 | 1 | 0.8 | 1.1 | 1.5 | 2 | 2.5 | 3 |
Tide / Current Tables for Cape Cod Canal, Massachusetts Current
EDIT (on/off) Help One Week of DataCape Cod Canal
Click for Map
Wed -- 01:49 AM EDT -0.17 knots Slack
Wed -- 04:54 AM EDT -4.20 knots Max Ebb
Wed -- 05:56 AM EDT Sunrise
Wed -- 07:52 AM EDT 0.19 knots Slack
Wed -- 10:51 AM EDT 3.94 knots Max Flood
Wed -- 11:34 AM EDT Moonset
Wed -- 02:19 PM EDT -0.01 knots Slack
Wed -- 05:19 PM EDT -4.02 knots Max Ebb
Wed -- 07:33 PM EDT Sunset
Wed -- 08:12 PM EDT 0.02 knots Slack
Wed -- 10:44 PM EDT Moonrise
Wed -- 11:09 PM EDT 3.82 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Wed -- 01:49 AM EDT -0.17 knots Slack
Wed -- 04:54 AM EDT -4.20 knots Max Ebb
Wed -- 05:56 AM EDT Sunrise
Wed -- 07:52 AM EDT 0.19 knots Slack
Wed -- 10:51 AM EDT 3.94 knots Max Flood
Wed -- 11:34 AM EDT Moonset
Wed -- 02:19 PM EDT -0.01 knots Slack
Wed -- 05:19 PM EDT -4.02 knots Max Ebb
Wed -- 07:33 PM EDT Sunset
Wed -- 08:12 PM EDT 0.02 knots Slack
Wed -- 10:44 PM EDT Moonrise
Wed -- 11:09 PM EDT 3.82 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
| 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 | 8 pm | 9 pm | 10 pm | 11 pm |
| 3.3 | 2.3 | -1.2 | -3 | -3.9 | -4.2 | -3.8 | -2.7 | 1 | 3 | 3.7 | 3.9 | 3.6 | 2.9 | 1.5 | -2.2 | -3.4 | -4 | -3.9 | -3 | -1.3 | 2.4 | 3.4 | 3.8 |
Weather Map and Satellite Images
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GOES 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.
Link to Loop
Other links: Northern Pacific Contential US Full GOES-East
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 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. |