Sunday, August9, 2020
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Marine Weather and Tides
Pawtucket, 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 5:46AMSunset 7:55PM Sunday August 9, 2020 5:00 PM EDT (21:00 UTC) Moonrise 11:03PMMoonset 11:30AM Illumination 67% Phase: Waning Gibbous; Moon at 21 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 Pm Edt Sun Aug 9 2020
Tonight..SW winds 5 to 10 kt. Gusts up to 20 kt this evening. Waves around 2 ft. Patchy fog. Vsby 1 to 3 nm after midnight.
Mon..SW winds 5 to 10 kt. Waves around 2 ft. Patchy fog. Vsby 1 to 3 nm.
Mon night..SW winds 5 to 10 kt. Waves 2 to 3 ft.
Tue..SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Waves around 2 ft.
Tue night and Wed..SW winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft.
Wed night..SW winds 5 to 10 kt. Gusts up to 20 kt in the evening. Waves around 2 ft. A chance of showers.
Thu and Thu night..SW winds around 5 kt, becoming nw around 5 kt. Waves 1 foot or less. A chance of showers.
Fri and Fri night..E winds 5 to 10 kt. Waves around 2 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 416 Pm Edt Sun Aug 9 2020
Synopsis for massachusetts and rhode island coastal waters.. High pres builds across the waters tonight and into early in the week. A cold front will cross the waters late Thu into Fri morning bringing scattered showers and tstms. 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 Pawtucket, RI
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location: 41.87, -71.38     debug


Area Discussion for - Boston, MA
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FXUS61 KBOX 092011 AFDBOX

Area Forecast Discussion National Weather Service Boston/Norton MA 411 PM EDT Sun Aug 9 2020

SYNOPSIS. High pressure settles south of New England, bringing a warming flow of air for the coming week. Should generally be dry, but cannot rule out an isolated shower or storm Monday afternoon. Very warm to hot weather with uncomfortable humidity for much of the upcoming work week. Increasing chances for rain and thunderstorms Wednesday through Thursday, and perhaps Friday.

NEAR TERM /UNTIL 6 AM MONDAY MORNING/.

Highlights

* Any isolated shower/storms end during the evening. Dry and quiet weather expected with stratus and fog along the south coast. Patchy fog may develop across portions of the interior.

A shortwave trough will dig from northern New England/southern Quebec into the Gulf of Maine. Behind the trough, a ridge axis will build into the eastern Great Lakes. At the surface, high pressure will remain offshore to the south.

The position of the surface high will keep low level winds roughly SW to SSW. This will gradually advect upper 60 to low 70 degree dew points into the region with the 70 degree dew points mainly being confined to the south coast.

The increasing moisture coupled with clear skies, light winds and recent rainfall in a few spots may result in some radiation fog across portions of the interior. In addition, will see stratus and fog moving into the south coast. Have once again leaned on the HREF and NAMNest in determining how widespread this activity will be. Mild overnight with low temperatures generally in the upper 60s to low 70s.

SHORT TERM /6 AM MONDAY MORNING THROUGH MONDAY NIGHT/.

Highlights

* Heat Advisory for much of southern New England starting Monday afternoon and continuing into Tuesday.

* Isolated showers and storms possible across the interior, but overall expecting most areas to remain dry with sunny skies.

* Dry and quiet Monday night with the stratus and fog returning to the south coast.

Monday .

Ridge axis slides into New England, but may have a very subtle shortwave slide into New York. At the surface high pressure remains offshore, but there may be a weak surface trough over southern New England.

Main concern is the oppressive heat. Low level flow will roughly be WSW to W. Dew points will continue to gradually climb. Generally remaining in the upper 60s to lower 70s. Given the W roughly W winds at 925 hPa expecting some downsloping. Have bumped up the high temperatures to the 90th percentile, which will bring temperatures into the mid 80s to mid 90s across the region. The warmest readings are anticipated across the CT River Valley and Merrimack Valley. The dew points coupled with these temperatures will bring heat index values in the mid to upper 90s. Will see somewhat similar heat index values on Tuesday, so hoisted the Heat Advisory where am most confident in widespread 95+ heat index values.

The forcing is quiet limited across southern New England with the ridge axis building in aloft. Have kept a mention of showers/storms across most of southern New England despite the poor dynamics. Thinking will still see some pop up showers/storms given the surface based CAPE increasing to roughly 1500-2000 J/kg. Will be plenty of moisture in place with upper 60 to low 70 degree dew points. Did lean on the CAMs which does bring slightly higher chances of precip over northern CT into northern RI. Still anticipate most of region to be dry with a few pop up showers/storms. Mid level lapse rates and deep layer shear are very poor, so do not expect any severe storms.

Monday night .

Any showers/storm come to an end during the evening due to the loss of heating. High pressure remains offshore. This will bring dry and quiet weather with stratus and fog returning to the south coast.

Will feel quite muggy across the region with dew points remaining in the upper 60s to low 70s. Winds at 925 hPa will be roughly WSW to W and this will advect 22 to 24 degree Celsius air in. This will keep lows right around those dew points with readings in the upper 60s to low 70s.

LONG TERM /TUESDAY THROUGH SUNDAY/.

Highlights .

* Very warm to hot weather with uncomfortable humidity levels for much of this work week. Potential heat wave in some locations.

* Wet/unsettled Wed and Thu as a stalling cold front offers opportunities for showers/thunderstorms. Signals for possibly locally heavy rain, though details on when and where are still uncertain.

Details .

Above normal temperatures likely to persist into Wednesday, although Wednesday should be a little cooler than Tuesday due to more clouds. Heat Advisory likely needed for some locations Tuesday, and perhaps Wednesday. Most likely areas will be the CT River Valley and Metrowest into the Merrimack Valley.

A cold front is still expected to linger around southern New England during the mid week time frame. Once this front moves past our region, expecting temperatures to be near to slightly below normal into next weekend. Surface dew points are also expected to drop slightly behind this front.

This slowing cold front will provide a focus for showers and thunderstorms Wednesday into Thursday. With the tropical humidity levels, a few downpours will be possible. Not looking at a widespread rainfall during this time, although most of the region will be at risk for these showers and thunderstorms.

More mixed signals towards the end of next week. Some of the guidance, namely the NationalBlend, GFS and CMC, are much more aggressive generating rainfall north of a cold front. Finding this concept difficult to accept. Just about all guidance have a strong high pressure over Quebec during this time. Pattern recognition suggests this cold front will be well south of our region Friday into next weekend, meaning dry weather is more likely across southern New England. This is in line with the latest ECMWF and WPC solutions.

AVIATION /19Z SUNDAY THROUGH FRIDAY/.

Forecaster Confidence Levels .

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

Through 00Z . High confidence

Generally VFR conditions anticipated. There is potential for the return of IFR stratus at ACK towards 00Z, but confidence is low on the specific timing. Could see an isolated shower or thunderstorm move through until 22-00Z. Best chances are at BAF to ORH/BED. Not out of the question PVD sees something pop up in next hour or two, but think the sea breeze should hold any activity off as it lifts northward. Winds SW around 5-10 kts. Could be around 10-15 kts along coastal areas due to the sea breeze including BOS.

Tonight . High confidence

VFR with light SW winds. Stratus and fog developing along the south coast. Could see anywhere from MVFR to LIFR conditions due to the stratus. Also, may see some patchy fog across the interior. Think majority of areas will be fog free, but there is a better shot where any showers/storms move through.

Monday . High confidence

VFR with light SW to W winds. Any stratus/fog lifts during the morning. Isolated shower/storm possible across the interior. Could see some gusts pick up across the south coast to 15-20 kts during the afternoon.

Monday Night . High confidence

VFR with light SW winds. Stratus and fog developing across the south coast.

KBOS Terminal . High confidence in TAF

KBDL Terminal . High confidence in TAF

Outlook /Tuesday through Friday/ .

Tuesday: VFR.

Tuesday Night: VFR. Slight chance SHRA.

Wednesday through Wednesday Night: VFR. Chance SHRA, isolated TSRA.

Thursday: Mainly VFR, with local MVFR possible. Chance SHRA, isolated TSRA.

Thursday Night: VFR. Chance SHRA, isolated TSRA.

Friday: Chance SHRA, isolated TSRA.

MARINE.

High pressure remains offshore. Expecting generally quiet weather, but fog and low clouds are possible tonight and Monday night. This fog/stratus should remain across the southern waters and southeast of Cape Cod. Should see visibility reductions in the 1 to 3 nm range.

Should see this stratus/fog burn off Monday morning and again Tuesday morning. Waves at or below 4 feet. Winds out of the S/SSW at 10-15 kts with gusts around 15-20 kts.

Outlook /Tuesday through Friday/ .

Tuesday: Winds less than 25 kt.

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

Wednesday: Winds less than 25 kt. Slight chance of rain showers.

Wednesday Night: Winds less than 25 kt. Chance of rain showers.

Thursday through Friday: Winds less than 25 kt. Chance of rain showers, isolated thunderstorms.

BOX WATCHES/WARNINGS/ADVISORIES. CT . None. MA . None. RI . None. MARINE . None.

SYNOPSIS . Belk/BL NEAR TERM . BL SHORT TERM . BL LONG TERM . Belk AVIATION . Belk/BL MARINE . Belk/BL


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
FOXR1 - 8454000 - Providence, RI 4 mi49 min S 12 G 19 84°F 78°F1016.8 hPa
PVDR1 6 mi43 min SSE 18 G 21 80°F 1017.1 hPa73°F
CPTR1 - 8452944 - Conimicut Light, RI 11 mi43 min 77°F 77°F1016.8 hPa
BLTM3 - 8447387 - Borden Flats Light at Fall River, MA 16 mi43 min SSW 16 G 19 80°F 1017.5 hPa
FRVM3 - 8447386 - Fall River, MA 16 mi43 min 83°F 79°F1017.9 hPa
FRXM3 16 mi43 min 82°F 70°F
NAXR1 - Narragansett Bay Reserve, RI 16 mi76 min SSW 8 81°F 1018 hPa71°F
PTCR1 - 8452951 - Potter Cove, Prudence Island, RI 16 mi43 min SSW 8 G 14 79°F 1018.2 hPa
PRUR1 19 mi43 min 75°F 73°F
QPTR1 - 8454049 - Quonset Point, RI 20 mi43 min SSW 18 G 21 79°F 77°F1017.6 hPa
NWPR1 - 8452660 - Newport, RI 25 mi43 min SSW 12 G 15 75°F 70°F1018.2 hPa
BHBM3 - 8443970 - Boston, MA 38 mi49 min 91°F 64°F1014.8 hPa
BUZM3 - Buzzards Bay, MA 38 mi61 min SSW 16 G 17 1019.1 hPa (-1.4)
BZBM3 - 8447930 - Woods Hole, MA 45 mi43 min 75°F 76°F1018.4 hPa
WAXM3 - Waquoit Bay Reserve, MA 49 mi76 min S 4.1 81°F 1018 hPa69°F

Wind History for Providence, RI
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Pawtucket, North Central State Airport, RI3 mi65 minSW 8 miPartly Cloudy86°F66°F53%1011.6 hPa
Providence, Theodore Francis Green State Airport, RI10 mi70 minS 1410.00 miPartly Cloudy87°F70°F57%1017.1 hPa
N. Kingston / Quonset, RI18 mi71 minS 2010.00 miMostly Cloudy and Breezy82°F71°F70%1017.6 hPa
Taunton, Taunton Municipal Airport, MA19 mi69 minSSW 11 G 1810.00 miFair87°F66°F51%1016.9 hPa
Newport, Newport State Airport, RI23 mi68 minS 10 G 1710.00 miFair81°F70°F69%1018 hPa

Link to 5 minute data for KSFZ

Wind History from SFZ (wind in knots)
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Last 24hrSE34S43Calm4SW4Calm5SW3SW43SW4SW4W45W43SW8SW3CalmSW8W4SW8
1 day agoSE53E5NE3E5E5E5E3NE3NE4NE3N3N6CalmN3NE5NE65NE8SE6N73CalmCalm
2 days ago3S4S3CalmCalmCalmCalmCalmNW4CalmNE3NE5NE5NE5NE6NE4NE3N5644E5SE5S3

Tide / Current Tables for Pawtucket, Seekonk River, Narragansett Bay, Rhode Island
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Pawtucket
Click for Map
Sun -- 12:23 AM EDT     4.44 feet High Tide
Sun -- 05:32 AM EDT     0.62 feet Low Tide
Sun -- 05:47 AM EDT     Sunrise
Sun -- 11:30 AM EDT     Moonset
Sun -- 12:53 PM EDT     4.61 feet High Tide
Sun -- 05:59 PM EDT     1.06 feet Low Tide
Sun -- 07:53 PM EDT     Sunset
Sun -- 11:02 PM EDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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4.44.33.62.41.30.70.711.62.233.74.44.64.23.22.11.31.11.21.62.12.63.2

Tide / Current Tables for Nayatt Point, Narragansett Bay, Rhode Island
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Nayatt Point
Click for Map
Sun -- 12:14 AM EDT     4.44 feet High Tide
Sun -- 05:21 AM EDT     0.62 feet Low Tide
Sun -- 05:48 AM EDT     Sunrise
Sun -- 11:29 AM EDT     Moonset
Sun -- 12:44 PM EDT     4.61 feet High Tide
Sun -- 05:48 PM EDT     1.06 feet Low Tide
Sun -- 07:52 PM EDT     Sunset
Sun -- 11:02 PM EDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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4.44.23.42.21.20.70.71.11.72.33.13.94.54.64.131.91.21.11.31.72.22.73.3

Weather Map
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wmap_A
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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Wind Forecast for Boston, MA (17,4,5,8)
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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.