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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 6:00AM | Sunset 7:34PM | Friday August 23, 2019 10:19 AM EDT (14:19 UTC) | Moonrise 11:53PM | Moonset 1:41PM | Illumination 45% |  |
ANZ236 Narragansett Bay- 717 Am Edt Fri Aug 23 2019
Today..N winds around 5 kt, becoming W this afternoon. Waves 2 to 3 ft. A chance of showers this morning.
Tonight..N winds 5 to 10 kt. Waves around 2 ft.
Sat..NE winds 5 to 10 kt. Waves around 2 ft.
Sat night..NE winds 5 to 10 kt. Waves around 2 ft.
Sun..NE winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to 3 ft. Patchy fog.
Sun night..NE winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft.
Mon through Tue..E winds 10 to 15 kt with gusts up to 20 kt. Waves 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..N winds around 5 kt, becoming W this afternoon. Waves 2 to 3 ft. A chance of showers this morning.
Tonight..N winds 5 to 10 kt. Waves around 2 ft.
Sat..NE winds 5 to 10 kt. Waves around 2 ft.
Sat night..NE winds 5 to 10 kt. Waves around 2 ft.
Sun..NE winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to 3 ft. Patchy fog.
Sun night..NE winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft.
Mon through Tue..E winds 10 to 15 kt with gusts up to 20 kt. Waves 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 Newport East, RI
Hourly EDIT Helplocation: 41.52, -71.3 debug
Area Discussion for - Boston, MA
(on/off) Help NOTE: mouseover dotted underlined text for definition| Fxus61 kbox 231409 afdbox area forecast discussion national weather service boston norton ma 1009 am edt Fri aug 23 2019 Synopsis A wave of low pressure tracking along a cold front south of the islands will bring a period of light rain to the south coast of massachusetts and rhode island the remainder of the morning. Then clouds will thin and give way to some breaks of afternoon sunshine as this wave of low pressure moves offshore. A fall- like airmass will then invade southern new england tonight into the weekend as large high pressure moves from the great lakes today into the maritimes by Sunday. Mild afternoons and cool nights will be featured. Dry weather Saturday with possibly a few showers Sunday especially eastern ma into ri, but a washout is not expected. Cool maritime high pressure remains in control early next week along with breezy conditions across CAPE cod and the islands. Meanwhile we'll be watching a potential tropical system tracking from the bahamas to well south of new england. Near term until 8 pm this evening 10 am update... back edge of rain shield now confined to the south coast of ma ri and continuing to move southward as post frontal airmass surges southward. Thus trend toward drier and less humid weather this afternoon. Back edge of cloud shield over northwest ct into central ma along with cloud shield thinning. So continue to expect clouds thinning and giving way to afternoon sunshine from northwest to southeast this afternoon. Previous forecast captures this trend well so no major changes with this update. 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 8 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 14z 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. 15z update ... rain shield confined to the south coast of ma ri at 15z and continuing to move offshore. Thus conditions all terminals by this afternoon along withVFR and nnw winds. Previous discussion below. 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 nocera evt short term... Wtb long term... Evt aviation... Wtb nocera evt marine... Wtb evt |
Weather Reporting Stations
EDIT (on/off) Help NOTE: Click on distance to see the station location on a mapWind History for Newport, RI
(wind in knots) EDIT (on/off) Help| 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 | S | S G9 | S | S G9 | S G13 | S | SW | SW G11 | SW G9 | SW | SW G5 | S | SE | SW | W | NW G8 | N G8 | N G13 | NW G10 | N | N G10 | NW G7 | N G10 |
| 1 day ago | S | S G13 | S | S G16 | S G16 | SW | S G17 | S | S G16 | S G16 | SW G13 | SW | SW G19 | SW G23 | SW G11 | SW G11 | SW | SW | SW | S | S | SW | S | S |
| 2 days ago | N | N | N G7 | N G4 | SW | SW | S | SW | SW | S G8 | S | S | S | S | SE | SE | S | E | SE | SE | SE | S | S G8 | 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 |
| Newport, Newport State Airport, RI | 2 mi | 2.4 hrs | NNW 4 | 10.00 mi | Light Rain | 68°F | 57°F | 70% | 1014.5 hPa |
| N. Kingston / Quonset, RI | 9 mi | 2.5 hrs | WNW 6 | 6.00 mi | Light Rain Fog/Mist | 68°F | 59°F | 73% | 1014.9 hPa |
| Providence, Theodore Francis Green State Airport, RI | 16 mi | 88 min | W 5 | 6.00 mi | Light Rain Fog/Mist | 65°F | 61°F | 87% | 1015.8 hPa |
| New Bedford, New Bedford Regional Airport, MA | 21 mi | 2.4 hrs | Var 3 | 10.00 mi | Overcast | 68°F | 57°F | 68% | 1014 hPa |
Link to 5 minute data for KUUU
Wind History from UUU (wind in knots)
| 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 | 10 AM | |
| Last 24hr | S | S | SW | S | SW | NW | N | N | N | NW | N | |||||||||||||
| 1 day ago | S | S G19 | S G20 | S G22 | S G17 | S G17 | S G17 | SW | S | G15 | SW | SW | Calm | Calm | SW | S | S | |||||||
| 2 days ago | NW | NW | NW | NW | S | S | SW | S | S | Calm | SE | S | S |
Tide / Current Tables for Newport, Rhode Island
EDIT Weekend mode (on/off) (on/off) Help One Week of DataNewport
Click for Map
Fri -- 01:39 AM EDT 2.94 feet High Tide
Fri -- 06:02 AM EDT Sunrise
Fri -- 06:44 AM EDT 0.51 feet Low Tide
Fri -- 10:58 AM EDT Last Quarter
Fri -- 01:41 PM EDT Moonset
Fri -- 02:14 PM EDT 3.50 feet High Tide
Fri -- 07:32 PM EDT 0.82 feet Low Tide
Fri -- 07:33 PM EDT Sunset
Fri -- 11:53 PM EDT Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Fri -- 01:39 AM EDT 2.94 feet High Tide
Fri -- 06:02 AM EDT Sunrise
Fri -- 06:44 AM EDT 0.51 feet Low Tide
Fri -- 10:58 AM EDT Last Quarter
Fri -- 01:41 PM EDT Moonset
Fri -- 02:14 PM EDT 3.50 feet High Tide
Fri -- 07:32 PM EDT 0.82 feet Low Tide
Fri -- 07:33 PM EDT Sunset
Fri -- 11:53 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 |
| 2.6 | 2.9 | 2.9 | 2.6 | 1.9 | 1.2 | 0.6 | 0.5 | 0.8 | 1.3 | 1.8 | 2.3 | 2.8 | 3.2 | 3.5 | 3.4 | 2.8 | 2.1 | 1.3 | 0.9 | 0.9 | 1.1 | 1.5 | 1.8 |
Tide / Current Tables for Westport River Entrance, Massachusetts Current
EDIT (on/off) Help One Week of DataWestport River Entrance
Click for Map
Fri -- 12:29 AM EDT 1.65 knots Max Flood
Fri -- 02:48 AM EDT -0.00 knots Slack
Fri -- 05:15 AM EDT -2.50 knots Max Ebb
Fri -- 06:01 AM EDT Sunrise
Fri -- 08:37 AM EDT 0.00 knots Slack
Fri -- 10:58 AM EDT Last Quarter
Fri -- 12:53 PM EDT 1.56 knots Max Flood
Fri -- 01:40 PM EDT Moonset
Fri -- 03:10 PM EDT -0.00 knots Slack
Fri -- 05:40 PM EDT -2.55 knots Max Ebb
Fri -- 07:32 PM EDT Sunset
Fri -- 09:06 PM EDT 0.00 knots Slack
Fri -- 11:52 PM EDT Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Fri -- 12:29 AM EDT 1.65 knots Max Flood
Fri -- 02:48 AM EDT -0.00 knots Slack
Fri -- 05:15 AM EDT -2.50 knots Max Ebb
Fri -- 06:01 AM EDT Sunrise
Fri -- 08:37 AM EDT 0.00 knots Slack
Fri -- 10:58 AM EDT Last Quarter
Fri -- 12:53 PM EDT 1.56 knots Max Flood
Fri -- 01:40 PM EDT Moonset
Fri -- 03:10 PM EDT -0.00 knots Slack
Fri -- 05:40 PM EDT -2.55 knots Max Ebb
Fri -- 07:32 PM EDT Sunset
Fri -- 09:06 PM EDT 0.00 knots Slack
Fri -- 11:52 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 |
| 1.6 | 1.6 | 1 | -0.3 | -1.7 | -2.5 | -2.2 | -1.4 | -0.5 | 0.3 | 0.8 | 1.2 | 1.4 | 1.6 | 1.2 | 0.2 | -1.2 | -2.3 | -2.5 | -1.8 | -0.9 | -0.1 | 0.5 | 1 |
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 (10,2,3,4)
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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. |