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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 5:58AM | Sunset 7:33PM | Friday August 23, 2019 9:05 AM EDT (13:05 UTC) | Moonrise 11:51PM | Moonset 1:39PM | Illumination 45% |  |
ANZ234 Buzzards Bay- 717 Am Edt Fri Aug 23 2019
Today..NW winds around 5 kt, becoming W this afternoon. Seas around 2 ft. A chance of showers this morning.
Tonight..W winds around 5 kt, becoming N after midnight. Seas around 2 ft.
Sat..NE winds 5 to 10 kt. Gusts up to 20 kt in the afternoon. Seas around 2 ft.
Sat night..NE winds 5 to 10 kt. Gusts up to 20 kt in the evening. Seas around 2 ft.
Sun..NE winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. Patchy fog.
Sun night..NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft.
Mon..NE winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft.
Tue..E winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 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.
Today..NW winds around 5 kt, becoming W this afternoon. Seas around 2 ft. A chance of showers this morning.
Tonight..W winds around 5 kt, becoming N after midnight. Seas around 2 ft.
Sat..NE winds 5 to 10 kt. Gusts up to 20 kt in the afternoon. Seas around 2 ft.
Sat night..NE winds 5 to 10 kt. Gusts up to 20 kt in the evening. Seas around 2 ft.
Sun..NE winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. Patchy fog.
Sun night..NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft.
Mon..NE winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft.
Tue..E winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 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 717 Am Edt Fri Aug 23 2019
Synopsis for massachusetts and rhode island coastal waters.. A cold front south of new england moves farther offshore today. Showers along the front will also move farther offshore. Canadian high pressure moves to the maritimes by late Saturday and lingers there into the first part of next week. This brings fair weather and less humidity for much of the forecast period. Winds become northeast Saturday afternoon and increase in speed Sunday and Monday. 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 cold front south of new england moves farther offshore today. Showers along the front will also move farther offshore. Canadian high pressure moves to the maritimes by late Saturday and lingers there into the first part of next week. This brings fair weather and less humidity for much of the forecast period. Winds become northeast Saturday afternoon and increase in speed Sunday and Monday. 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 Woods Hole, MA
Hourly EDIT Helplocation: 41.53, -70.67 debug
Area Discussion for - Boston, MA
(on/off) Help NOTE: mouseover dotted underlined text for definition| Fxus61 kbox 231112 afdbox area forecast discussion national weather service boston norton ma 712 am edt Fri aug 23 2019 Synopsis A cold front along the south coast this morning moves well offshore during the day. Showers along the front will move offshore with the front. Drier less humid air moves in from the northwest. High pressure will linger across central and eastern canada through this weekend into early next week. Cool temperatures both Sunday and Monday with the onshore wind flow in place, along with spotty light rain or showers especially near the coast. As the high slowly pushes east, temperatures will moderate by mid week, but there could be a threat for showers as a cold front approaches. Near term until 6 pm this evening 650 am update... noting the cold front S of long island to near nantucket at 09z. However, N of the front, a band of showers lying from SE ny through most of ct into N ri and central to NE mass on latest ne regional 88d radar imagery. Only spotty light showers being reported on latest observations, with the steadiest light rain from around khpn-kdxr-kijd and kowd southeastward at 10z. While the rain elements continue to shift ne, while the entire area is slowly shifting s-se behind the front. Mainly dry conditions noted across central and western mass, but may see a few spotty showers over the next hour or two. Back edge of the cloud deck, noted across SW me to central nh and southern vt at 1030z as seen on latest goes-east nighttime microphysics rgb satellite imagery. Big question will be how long will the clouds linger before slowly pushing southward. This may take a while as the h5 long wave trough will be slow to swing across, so may see the w-sw mid level steering flow linger longer than currently forecast. Previous discussion... once the flow shifts, expect clearing skies, earliest in northern ma and latest along the south coast. Cross sections show drying aloft and at the surface, but a lingering moist layer around 850 mb. The mixed layer is expected to reach a little past 850 mb, so there should be some diurnal CU formation over the interior. The dry air should limit the extent. Temperatures at 850 mb will be 10-12c, so we expect MAX sfc temps of 76f to 82f. Best of all, dew points will be in the upper 40s and 50s everywhere this afternoon evening. Short term 6 pm this evening through 6 pm Saturday A fair weather period, quite welcome to most after the recent spell of humidity. High pressure over northern ontario builds east, reaching the maritimes late Saturday. This brings a light north flow to new england tonight, turning to a northeast flow by Saturday afternoon. With dew points upper 40s and 50s, expect min temps tonight in the 50s most places... With upper 40s in the cold spots and around 60 in large urban areas. The developing northeast flow will play havoc with mixing, but daytime heating and 8c at 850 mb suggest sfc temperatures into the 70s. If anyone stands a chance at 80, it will be the ct valley of hartford-springfield. Long term Saturday night through Thursday Highlights... * expect much cooler than normal temperatures Sunday and Monday especially along the east coast * onshore winds will bring spotty light rain or showers at times into mid week * temperatures return to near normal levels around mid week * another chance for showers Wednesday into Thursday details... Saturday night through Monday... with a large high pressure area extending across quebec and northern new england, a return northeasterly wind flow will bring cool temperatures across the region especially along east coastal areas into early next week. With the onshore wind flow, the long ocean fetch will bring increasing low level moisture westward. So, can not rule out periods of spotty light rain and or showers at times mainly over the weekend. By Monday, it appears the southern extend of the large ridge will start to shift into N mass, which will bring drier conditions across the entire region with good subsidence. So, any spotty precip early should end, though clouds may linger across eastern and S coastal areas through the day. Expect daytime highs mainly in the lower to mid 70s, but may not break 70 along the immediate E coast as well as outer cape cod and nantucket. With the long fetch across the western atlc, will see E to ne winds gusting up to 25-30 mph along the E coast both Sunday and Monday. Monday night through Thursday... the large high center across the maritimes will begin to shift e during this timeframe as a cold front slowly shifts out of the great lakes. Winds will diminish somewhat as the pressure gradient relaxes, then will veer to se-s by later Wed into thu. Increasing uncertainty as to how quickly the ridge will shift further offshore along with the timing of the approaching cold front. At this point, the ridge will keep dry conditions in place on Tuesday, except for spotty light showers mainly near the S coast. Deepening layer moisture as well as slowly but steadily increasing dewpoints will approach starting later Tuesday and continue through Thursday. Expect highs on Wed to be |
close to seasonal levels, then upward to around 5 degrees above normal on thu. The approaching cold front will bring a more organized shot for showers starting late Tuesday night across the E slopes of the berkshires, then slowly shifting E Wed and thu. Timing of the actual front still in question due to the exit of the maritime high pressure. Aviation 12z Friday through Tuesday Forecaster confidence levels... low - less than 30 percent. Moderate - 30 to 60 percent. High - greater than 60 percent. Short term through Saturday ... Moderate confidence. Through 14z... mainlyVFR. Mainly dry N central and W mass. A band of showers from N ct through NE mass will shift ne, but the entire zone will shift s-se. May see brief, local MVFR conditions in any heavier showers or lower CIGS mainly across NE ct ri S coastal mass. Rest of today... vfr most of the region. Brief MVFR CIGS vsbys in showers along the south coast through around 16z-18z. Otherwise becoming mostly sunny with dry conditions. A few puffy clouds form inland during the day, but with bases 4000-5000 feet. Northwest winds turning north by sunset. Tonight... vfr with mostly clear skies and light north winds. Saturday... vfr. North wind turns from the northeast during the afternoon. Kbos terminal... High confidence in taf kbdl terminal... High confidence in taf. Outlook Saturday night through Tuesday ... Moderate to high confidence. Saturday night:VFR. Breezy. Sunday through Monday: mainlyVFR, with local MVFR possible. Breezy. Monday night: mainlyVFR, with local ifr possible. Breezy. Patchy br. Tuesday:VFR. Breezy. Slight chance shra. Marine Forecaster confidence levels... low - less than 30 percent. Moderate - 30 to 60 percent. High - greater than 60 percent. Short term through Saturday ... High confidence. Today... Scattered showers this morning with brief poor vsbys. Conditions should improve from north to south through around midday, with drying in the afternoon. Winds will be less than 25 kts through the day. Seas 4 feet or less. Tonight... Winds less than 20 kt and seas 4 feet or less. Saturday... Winds less than 20 kt. Seas 4 feet or less. Outlook Saturday night through Tuesday ... Moderate confidence. Saturday night: winds less than 25 kt. Areas of seas approaching 5 ft. Sunday: moderate risk for small craft advisory winds with gusts up to 25 kt. Seas up to 5 ft. Slight chance of rain. Sunday night: low risk for small craft advisory winds with gusts up to 25 kt. Seas up to 5 ft. Slight chance of rain. Monday: low risk for small craft advisory winds with gusts up to 30 kt. Seas up to 5 ft. Slight chance of rain. Monday night: winds less than 25 kt. Seas up to 5 ft. Slight chance of rain. Tuesday: winds less than 25 kt. Seas up to 5 ft. Slight chance of rain showers. Box watches warnings advisories Ct... None. Ma... None. Ri... None. Marine... None. 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 | 0 mi | 53 min | 74°F | 74°F | 1013.9 hPa | |||
| WAXM3 - Waquoit Bay Reserve, MA | 8 mi | 80 min | WNW 1.9 | 73°F | 1014 hPa | 67°F | ||
| BUZM3 - Buzzards Bay, MA | 21 mi | 65 min | NNW 8.9 G 9.9 | 70°F | 1014.8 hPa (+2.0) | |||
| 44020 - NANTUCKET SOUND | 21 mi | 25 min | N 9.7 G 14 | 73°F | 75°F | 60°F | ||
| 44090 | 28 mi | 35 min | 68°F | 1 ft | ||||
| BLTM3 - 8447387 - Borden Flats Light at Fall River, MA | 29 mi | 47 min | NW 7 G 8 | 70°F | 1015.2 hPa | |||
| FRVM3 - 8447386 - Fall River, MA | 29 mi | 53 min | 70°F | 80°F | 1015.5 hPa | |||
| FRXM3 | 29 mi | 53 min | 69°F | 58°F | ||||
| PRUR1 | 34 mi | 53 min | 65°F | 61°F | ||||
| NTKM3 - 8449130 - Nantucket Island, MA | 35 mi | 53 min | N 7 G 8 | 75°F | 76°F | 1013.9 hPa | ||
| NWPR1 - 8452660 - Newport, RI | 35 mi | 53 min | NNW 6 G 8.9 | 68°F | 68°F | 1015.2 hPa | ||
| NAXR1 - Narragansett Bay Reserve, RI | 36 mi | 80 min | NNE 5.1 | 69°F | 1014 hPa | 58°F | ||
| PTCR1 - 8452951 - Potter Cove, Prudence Island, RI | 36 mi | 47 min | NNW 2.9 G 6 | 67°F | 1015.9 hPa | |||
| CPTR1 - 8452944 - Conimicut Light, RI | 38 mi | 47 min | WNW 8 G 9.9 | 67°F | 78°F | 1015.5 hPa | ||
| QPTR1 - 8454049 - Quonset Point, RI | 39 mi | 53 min | NW 5.1 G 6 | 69°F | 74°F | 1015.5 hPa | ||
| PVDR1 | 42 mi | 47 min | NW 5.1 G 5.1 | 1015.6 hPa | ||||
| FOXR1 - 8454000 - Providence, RI | 43 mi | 47 min | N 5.1 G 7 | 68°F | 75°F | 1015.3 hPa | ||
| 44097 - Block Island, RI (154) | 46 mi | 35 min | 76°F | 4 ft |
Wind History for Borden Flats Light at Fall River, MA
(wind in knots) EDIT (on/off) Help| 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 | SW | SW | SW | SW | SW | SW | SW G23 | SW | SW | SW | SW | SW | SW | SW G17 | SW | SW | W | W | NW | N | N G10 | NW | N | N |
| 1 day ago | SW | S G14 | S G12 | SE G14 | SW | SW G20 | S G20 | SW G26 | SW G20 | S G17 | S G20 | SW | S G19 | SW | SW | SW | SW G18 | SW | SW | SW | SW | SW | S | S |
| 2 days ago | NW | NW | NW | W | SW | SW | SW | SW | SW | SW | S | S | SW G8 | SW | SW | SW | S | SW | S | S | S | S | S | 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 |
| Marthas Vineyard Airport, MA | 9 mi | 72 min | N 5 | 10.00 mi | A Few Clouds | 74°F | 63°F | 69% | 1013.8 hPa |
| Otis Air National Guard Base, MA | 12 mi | 80 min | N 4 | 10.00 mi | Overcast | 68°F | 62°F | 83% | 1014.2 hPa |
| New Bedford, New Bedford Regional Airport, MA | 19 mi | 72 min | Var 3 | 10.00 mi | Overcast | 68°F | 57°F | 68% | 1014 hPa |
| Hyannis, Barnstable Municipal-Boardman Airport, MA | 23 mi | 69 min | NNW 5 | 10.00 mi | Overcast | 73°F | 60°F | 64% | 1013.5 hPa |
Link to 5 minute data for KMVY
Wind History from MVY (wind in knots)
| 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 | 9 AM | |
| Last 24hr | S | SW | SW | SW | SW | SW G22 | SW | SW | SW | SW | SW | SW | SW | W | W | W G17 | NW G17 | NW | NW | NW | N | N | N | NW |
| 1 day ago | S | S | S | S G21 | S | S | S G24 | S | S | SW | S G19 | SW | SW | SW | SW G19 | SW | SW | SW | SW | SW | W | W | ||
| 2 days ago | NW | NW | N | Calm | SE | SW | SW | SW | SW | SW | S | Calm | SW | Calm | Calm | SW | Calm | Calm | Calm | Calm | Calm | S | S |
Tide / Current Tables for Woods Hole Oceanographic Institute, Massachusetts
EDIT Weekend mode (on/off) (on/off) Help One Week of DataWoods Hole Oceanographic Institute
Click for Map
Fri -- 02:16 AM EDT 1.52 feet High Tide
Fri -- 05:21 AM EDT 0.81 feet Low Tide
Fri -- 05:59 AM EDT Sunrise
Fri -- 06:49 AM EDT 0.91 feet High Tide
Fri -- 08:53 AM EDT 0.71 feet Low Tide
Fri -- 10:58 AM EDT Last Quarter
Fri -- 01:38 PM EDT Moonset
Fri -- 02:44 PM EDT 1.96 feet High Tide
Fri -- 05:44 PM EDT 1.40 feet Low Tide
Fri -- 06:46 PM EDT 1.44 feet High Tide
Fri -- 07:30 PM EDT Sunset
Fri -- 10:29 PM EDT 0.58 feet Low Tide
Fri -- 11:50 PM EDT Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Fri -- 02:16 AM EDT 1.52 feet High Tide
Fri -- 05:21 AM EDT 0.81 feet Low Tide
Fri -- 05:59 AM EDT Sunrise
Fri -- 06:49 AM EDT 0.91 feet High Tide
Fri -- 08:53 AM EDT 0.71 feet Low Tide
Fri -- 10:58 AM EDT Last Quarter
Fri -- 01:38 PM EDT Moonset
Fri -- 02:44 PM EDT 1.96 feet High Tide
Fri -- 05:44 PM EDT 1.40 feet Low Tide
Fri -- 06:46 PM EDT 1.44 feet High Tide
Fri -- 07:30 PM EDT Sunset
Fri -- 10:29 PM EDT 0.58 feet Low Tide
Fri -- 11:50 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 |
| 1.1 | 1.3 | 1.5 | 1.4 | 1.1 | 0.8 | 0.9 | 0.9 | 0.8 | 0.7 | 0.8 | 1.1 | 1.4 | 1.7 | 1.9 | 2 | 1.8 | 1.5 | 1.4 | 1.4 | 1.2 | 0.8 | 0.6 | 0.6 |
Tide / Current Tables for Woods Hole, Massachusetts Current (use with caution)
EDIT (on/off) Help One Week of DataWoods Hole
Click for Map
Fri -- 01:55 AM EDT 2.82 knots Max Flood
Fri -- 04:42 AM EDT -0.06 knots Slack
Fri -- 05:59 AM EDT Sunrise
Fri -- 07:16 AM EDT -3.35 knots Max Ebb
Fri -- 10:03 AM EDT 0.00 knots Slack
Fri -- 10:58 AM EDT Last Quarter
Fri -- 01:38 PM EDT Moonset
Fri -- 02:25 PM EDT 2.80 knots Max Flood
Fri -- 05:10 PM EDT -0.06 knots Slack
Fri -- 07:30 PM EDT Sunset
Fri -- 07:42 PM EDT -3.31 knots Max Ebb
Fri -- 10:29 PM EDT 0.17 knots Slack
Fri -- 11:50 PM EDT Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Fri -- 01:55 AM EDT 2.82 knots Max Flood
Fri -- 04:42 AM EDT -0.06 knots Slack
Fri -- 05:59 AM EDT Sunrise
Fri -- 07:16 AM EDT -3.35 knots Max Ebb
Fri -- 10:03 AM EDT 0.00 knots Slack
Fri -- 10:58 AM EDT Last Quarter
Fri -- 01:38 PM EDT Moonset
Fri -- 02:25 PM EDT 2.80 knots Max Flood
Fri -- 05:10 PM EDT -0.06 knots Slack
Fri -- 07:30 PM EDT Sunset
Fri -- 07:42 PM EDT -3.31 knots Max Ebb
Fri -- 10:29 PM EDT 0.17 knots Slack
Fri -- 11:50 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 |
| 2.5 | 2.7 | 2.8 | 2.6 | 1.9 | -1.3 | -2.7 | -3.3 | -3.2 | -2.3 | -0.4 | 1.9 | 2.3 | 2.6 | 2.8 | 2.7 | 2.3 | 1 | -2.2 | -3.1 | -3.3 | -2.7 | -1.5 | 1.4 |
Weather Map and Satellite Images
(on/off) HelpWeather Map
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 (9,2,3,4)
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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. |