Saturday, May30, 2020
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Marine Weather and Tides
East Providence, RI

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 5:11AMSunset 8:14PM Saturday May 30, 2020 5:17 AM EDT (09:17 UTC) Moonrise 12:57PMMoonset 1:53AM Illumination 58% Phase: First Quarter Moon; Moon at 8 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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ANZ236 Narragansett Bay- 416 Am Edt Sat May 30 2020
Today..SW winds 5 to 10 kt. Waves 2 to 4 ft. Patchy fog this morning. A chance of showers with a slight chance of tstms this morning with vsby 1 nm or less.
Tonight..SW winds 5 to 10 kt, becoming nw after midnight. Waves 2 to 3 ft.
Sun..NW winds 5 to 10 kt with gusts up to 20 kt. Waves 2 to 3 ft.
Sun night..NW winds 5 to 10 kt. Gusts up to 20 kt in the evening. Waves 2 to 3 ft.
Mon and Mon night..NW winds 5 to 10 kt. Waves around 2 ft.
Tue..W winds 5 to 10 kt. Waves around 2 ft.
Tue night through Wed night..SW winds 5 to 10 kt. Waves 2 to 4 ft. A chance of showers. 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 416 Am Edt Sat May 30 2020
Synopsis for massachusetts and rhode island coastal waters.. A cold front crossing new england will move over the waters this afternoon and evening. This will bring scattered showers and possibly a Thunderstorm. Winds then shift out of the west after the cold front moves through. High pressure from the great lakes will bring cooler drier air Sunday and Monday. Gusty northwest winds move across the waters on Sunday. Showers return midweek. 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 East Providence, RI
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location: 41.8, -71.38     debug


Area Discussion for - Boston, MA
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FXUS61 KBOX 300733 AFDBOX

Area Forecast Discussion National Weather Service Boston/Norton MA 333 AM EDT Sat May 30 2020

SYNOPSIS. A cold front will move through Southern New England today, bringing scattered showers and possibly a thunderstorm to RI and Eastern Massachusetts. Other than scattered pop- up showers or thunderstorms later Monday, cooler and drier weather prevails Sunday through Monday night. A warm front brings chances for rains Tuesday night into Wednesday especially south and west of Central Massachusetts. Temperatures gradually warm by midweek, toward above-normal levels by the weekend.

NEAR TERM /UNTIL 6 PM THIS EVENING/. One shortwave moves through the Northeast this morning, pushing a cold front east across Southern New England. The shortwave is accompanied by a 130 kt southwest jet with Srn New England under the right entrance region. High moisture in the airmass is shifting offshore, but will remain over RI/Eastern MA through midday. This means an area of lift over MA-RI-CT as the cold front moves through. The upper lift and low level convergence, along with the moisture, will support scattered showers along/ahead of the cold front. Best chance will be in RI/Eastern MA.

Main question is whether there will be enough instability for isolated thunderstorms. CAPE of 200 is forecast over RI/SE MA as well as a narrow zone of a Lifted Index of -1. The forecast will continue to mention isolated tstms.

Otherwise, a drying trend will take over as winds shift out of the west behind the cold front. Mixing to 850 mb taps upper temps of 10-12C, supporting sfc max temps of 75 to around 80, cooler on the Cape and Islands.

SHORT TERM /6 PM THIS EVENING THROUGH 6 PM SUNDAY/. Tonight .

Northwest winds bring cooler drier air. Dew points will be in the mid 40s to mid 50s. Expect min temps in the 50s, except some 40s in Northwest MA.

Sunday .

Cold upper trough will dig southeast from Canada, while a surface ridge builds east from the Great Lakes. Expect a dry day with plenty of sunshine. Dew points in the 30s will offer a contrast to the muggy air late this week. The cooling aloft will aid in deeper mixing, with the layer reaching near 775 mb. Temps at at that level will be equivilent to roughly 5C from 850 mb, possibly a smidge higher. Will forecast max sfc temps of 65 to 70.

LONG TERM /SUNDAY NIGHT THROUGH FRIDAY/. Highlights .

* Cooler and drier weather Sunday into Mon. Scattered diurnal showers with low-topped thunderstorms possible late Mon, mainly north/east of the CT Valley.

* Warm front brings risk for rain showers later Tues into Wed. Mainly dry Thursday.

* Rain showers and/or thunder possible Fri into the weekend but confidence is low on the timing.

* Slow warming trend to temperatures thru mid to late week, near to just above typical early-June normals.

Details .

Sunday Night through Monday Night:

Large/deep upper level trough becomes established over the Northeast into the mid-Atlantic Sunday night into Monday, with a broad surface high building ESE from the Ohio Valley and into the central Appalachians by Monday. An 850 mb thermal trough associated with below-average 850 mb temps between 0 to -2C will also establish itself over Southern New England. Dry advection on northwest winds will cause dewpoints to plummet into the 30s to lower 40s with PWAT values tumbling below a half-inch.

Sunday night into the first part of Monday should be fairly uneventful weather-wise. However as the upper-level trough axis shifts east later Monday - a reinforcing shortwave trough diving southeast combined with strong diurnal heating may prove enough to spark at least scattered diurnal showers, especially north and east of the CT Valley. Despite moisture being quite limited - in fact, indication of well-mixed/inverted-V sounding profiles Mon aftn - models show some weak instability just enough to carry a thunder mention in the forecast. This convective instability is mainly cold- air-aloft driven, which would lend itself to shallow-topped showers/possible storms. While I wouldn't necessarily discount some small hail in stronger cells given the low freezing levels, and localized gusts given the inverted-V profiles, the meager instability values will be a limiting factor (a few hundred J/kg of most-unstable CAPE, values unlikely to be much higher given low progged dewpoints). Something to watch but overall thunder threat best characterized as isolated to widely scattered. Any showers/storms end quickly after sunset with clearing into Monday night.

Temperatures will trend below normal for early June with lows in the 40s Sunday and Monday nights, with highs in the mid to upper 60s (near 60 for to the coasts).

Tuesday into Wednesday:

Mid-level pattern then starts to change as the longwave trough from the Sunday through Monday period moves into the Atlantic waters, and transitions toward shortwave ridging aloft. Rising 850 mb temps into the lower teens Celsius point to the beginning of a moderating, warming trend to temperatures.

While we should see dry weather under shortwave ridging for Tuesday, confidence in the PoP/Wx forecast starts to dwindle especially for the Tuesday night/Wednesday timeframe. Eastern end of a NW to SE oriented warm front looks to extend into or just SW of Southern New England. Most of the guidance shows upper-ridge-rolling shortwave troughs which dive southeastward near or just west of New England at points. However there's little consensus among the guidance as far as timing when greater PoP chances are more likely, due to variance in when shortwave(s) interact with the front. Better chances for rains further southwest.

Thursday into the Weekend:

Described uncertainties in the midweek pattern continue to affect model forecast consistency leading to fairly poor agreement among the models for late week into the weekend. Will offer a mainly dry forecast for most of this period. However, zonal flow and timing shortwaves in that type of regime is a notoriously tough challenge and renders limited confidence in the precip forecast. In addition, it appears the Upper Midwest should prove fairly convectively-active. While not apparent at this point in time, any shortwaves stemming from that convective regime could bring at least periods of rain to the area. May need to introduce higher PoPs at points in this period, but difficult to really pinpoint when with any sense of confidence.

Temperatures look to be closer to typical early June normals, after a short-lived cooldown in 850 mb temps into the upper single digits Celsius. Temps project slightly warmer than normal into the weekend as mid-teens 850 mb temps return.

AVIATION /08Z SATURDAY THROUGH WEDNESDAY/. Forecaster Confidence Levels .

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

Today .

Cigs above 1000 feet in Nrn Mass, and below 1000 feet in the CT Valley and CT-RI-SE Mass early morning. Right entrance region of upper jet will provide enough lift to bring scattered showers with brief vsbys of 1-2 nm, perhaps an isolated thunderstorm.

Cold front moving east from NY state will move across Srn New England during the day. Isolated thunderstorms may occur in RI and Eastern MA 8A to Noon. With the frontal passage, winds will shift from the west, with clearing skies during the afternoon.

Tonight .

Clearing skies and VFR. A second cloud area may sweep across northern MA overnight, but conditions remain VFR.

Sunday .

VFR. Breezy from the northwest with gusts to 20 kt.

KBOS Terminal . High confidence in TAF.

KBDL Terminal . High confidence in TAF.

Outlook /Sunday Night through Wednesday/ .

Sunday Night: VFR. Breezy.

Monday: VFR. Slight chance SHRA, slight chance TSRA.

Monday Night: VFR.

Tuesday: VFR. Slight chance SHRA.

Tuesday Night through Wednesday: Mainly VFR, with local IFR possible. Chance SHRA.

MARINE. Today . Cold front over New England will move over the waters this afternoon and evening. Southwest winds 10-20 kt will come out of the west late today. Wind gusts will diminish below 25 kt, but seas are expected to remain around 5 feet on the southern waters. A Small Craft Advisory will continue much of today on these waters.

Tonight . West-northwest winds will bring drier air over the waters, as well as clearing and good vsbys. Lingering Small Crafts for seas on the southern outer waters.

Sunday . High pressure builds in from the west. Gusty northwest winds sustained 10-15 kt and gusts around 20 kt. Seas mostly below 5 feet, but could linger near 5 feet on the southern outer waters.

Outlook /Sunday Night through Wednesday/ .

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

Monday: Winds less than 25 kt. Seas locally approaching 5 ft. Slight chance of rain showers, slight chance of thunderstorms.

Monday Night: Winds less than 25 kt.

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

Tuesday Night through Wednesday: Winds less than 25 kt. Areas of seas approaching 5 ft. Chance of rain showers.

BOX WATCHES/WARNINGS/ADVISORIES. CT . None. MA . None. RI . None. MARINE . Small Craft Advisory until 8 PM EDT this evening for ANZ233>235-237. Small Craft Advisory until 2 PM EDT this afternoon for ANZ250. Small Craft Advisory until 5 AM EDT Sunday for ANZ254>256.

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


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
FOXR1 - 8454000 - Providence, RI 1 mi47 min SW 8 G 11 67°F 64°F1010.8 hPa
PVDR1 1 mi47 min SSW 8.9 G 13 67°F 1010.9 hPa65°F
CPTR1 - 8452944 - Conimicut Light, RI 6 mi47 min 62°F 64°F1010.9 hPa
NAXR1 - Narragansett Bay Reserve, RI 11 mi92 min SW 4.1 62°F 1011 hPa62°F
PTCR1 - 8452951 - Potter Cove, Prudence Island, RI 11 mi47 min WSW 2.9 G 7 62°F 1011.6 hPa
BLTM3 - 8447387 - Borden Flats Light at Fall River, MA 13 mi47 min SSW 15 G 17 63°F 1011 hPa
FRVM3 - 8447386 - Fall River, MA 13 mi47 min 63°F 63°F1011.4 hPa
FRXM3 13 mi53 min 62°F 62°F
PRUR1 14 mi47 min 59°F 59°F
QPTR1 - 8454049 - Quonset Point, RI 15 mi47 min SW 14 G 16 63°F 56°F1011.1 hPa
NWPR1 - 8452660 - Newport, RI 21 mi47 min SW 11 G 13 58°F 53°F1011.4 hPa
BUZM3 - Buzzards Bay, MA 33 mi77 min SSW 18 G 19 1011.7 hPa (-1.8)
BHBM3 - 8443970 - Boston, MA 42 mi53 min 68°F 54°F1008.2 hPa
BZBM3 - 8447930 - Woods Hole, MA 42 mi47 min 61°F 59°F1011.3 hPa
NLNC3 - 8461490 - New London, CT 48 mi47 min SW 6 G 9.9 64°F 53°F1010.4 hPa
WAXM3 - Waquoit Bay Reserve, MA 48 mi92 min SSE 5.1 65°F 1012 hPa65°F

Wind History for Providence, RI
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Providence, Theodore Francis Green State Airport, RI6 mi26 minSSW 69.00 miLight Rain66°F64°F96%1010.3 hPa
Pawtucket, North Central State Airport, RI8 mi21 minVar 510.00 miLight Rain65°F64°F100%1004.4 hPa
Newport, Newport State Airport, RI19 mi24 minSW 70.25 miFog60°F59°F96%1010.7 hPa
Taunton, Taunton Municipal Airport, MA20 mi25 minSSW 73.00 miLight Rain Fog/Mist65°F62°F90%1010.2 hPa
New Bedford, New Bedford Regional Airport, MA23 mi24 minSW 13 G 181.50 miFog/Mist62°F62°F100%1010.6 hPa

Link to 5 minute data for KPVD

Wind History from PVD (wind in knots)
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2 days agoSW4S5S6SE7SE9S9S11SE12S10SE15SE13S16
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Tide / Current Tables for Providence, Rhode Island (2)
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Providence
Click for Map
Sat -- 01:52 AM EDT     Moonset
Sat -- 02:36 AM EDT     4.51 feet High Tide
Sat -- 05:13 AM EDT     Sunrise
Sat -- 07:57 AM EDT     0.22 feet Low Tide
Sat -- 12:56 PM EDT     Moonrise
Sat -- 03:14 PM EDT     4.61 feet High Tide
Sat -- 08:12 PM EDT     Sunset
Sat -- 08:33 PM EDT     0.46 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.13.94.44.53.82.61.40.50.20.40.91.62.43.34.14.64.43.52.21.10.50.50.81.3

Tide / Current Tables for Nayatt Point, Narragansett Bay, Rhode Island
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Nayatt Point
Click for Map
Sat -- 01:52 AM EDT     Moonset
Sat -- 02:34 AM EDT     4.62 feet High Tide
Sat -- 05:13 AM EDT     Sunrise
Sat -- 07:56 AM EDT     0.22 feet Low Tide
Sat -- 12:56 PM EDT     Moonrise
Sat -- 03:12 PM EDT     4.72 feet High Tide
Sat -- 08:12 PM EDT     Sunset
Sat -- 08:32 PM EDT     0.46 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.244.54.53.92.61.40.50.20.511.72.53.44.34.74.53.52.21.10.50.50.81.4

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 (5,6,7,8)
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Ground Weather Radar Station Boston, MA
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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.