Saturday, September25, 2021
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Marine Weather and Tides
Warwick, RI

Version 3.4
NOTICE
3/30/2021 -- ANZ330 has been split into ANZ331 and ANZ332. Click EDIT in Marine Forecast and select your new zone.
1/26/2021 -- The West Coast Satellite images havd been updated. They now use GEOS-17.
1/1/2021 -- The 7 day forecast are now working well. Thank you NOAA for your support.

Sunrise 6:35AMSunset 6:39PM Saturday September 25, 2021 8:58 AM EDT (12:58 UTC) Moonrise 9:03PMMoonset 11:07AM Illumination 83% Phase: Waning Gibbous; Moon at 19 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- 727 Am Edt Sat Sep 25 2021
Today..NE winds around 5 kt, becoming E this afternoon. Waves around 2 ft. A chance of showers this afternoon.
Tonight..E winds around 5 kt, becoming N after midnight. Waves around 2 ft. Patchy fog. Showers likely. Vsby 1 nm or less.
Sun..NW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Waves around 2 ft. Showers likely. Vsby 1 to 3 nm.
Sun night..W winds 10 to 15 kt. Gusts up to 20 kt in the evening. Waves around 2 ft.
Mon and Mon night..SW winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft.
Tue..W winds 5 to 10 kt. Waves 1 foot or less. A chance of showers.
Tue night through Wed night..NE winds 5 to 10 kt. Waves 1 foot or less. 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 727 Am Edt Sat Sep 25 2021
Synopsis for massachusetts and rhode island coastal waters.. Overnight showers will become isolated as a cold front stall east of cape cod. This front becomes quasi-stationary and will provide isolated showers today. Sunday a weak area of low pressure moves north along the boundary and provides isolated showers once again. At this time Sunday appears to have the highest threat for conditions to approach the threshold for small crafts. Small craft conditions continue Monday with gusty winds followed by showers and Thunderstorms Tuesday. A cold front brings clearing and cooler air Tuesday night. For additional information on possible hazardous weather for the week ahead, please visit www.weather.gov/boston/ehwo


7 Day Forecast for Marine Location Near Warwick, RI
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location: 41.67, -71.35     debug


Area Discussion for - Boston, MA
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FXUS61 KBOX 251059 AFDBOX

Area Forecast Discussion National Weather Service Boston/Norton MA 659 AM EDT Sat Sep 25 2021

SYNOPSIS. A persistent band of showers across the Cape and islands and nearby waters early this morning. A second low pressure will bring another chance for showers this afternoon and tonight, primarily across eastern Massachusetts and Rhode Island. Cooler and less humid weather is on tap for the second half of this weekend and much of next week. Much of next week will be dry, except for a few showers possible later Monday into early Tuesday. By late next week will have to watch an offshore low pressure, but it remains uncertain if it will track close enough to bring a period a soaking rain.

NEAR TERM /UNTIL 6 PM THIS EVENING/.

7 am update .

The cold front has moved offshore leaving mostly clear skies across souther New England. The exception is in southeast MA and RI in closer vicinity to the front where clouds continue to hang on. That will be the theme through the day, with high clouds moving into western MA/CT later this afternoon. No significant changes to the forecast are needed at this time.

Previous Discussion .

Will still be dealing with a stalled front across the eastern waters, including the Cape and islands. A persistent band of showers along this boundary should briefly diminish as this morning progresses and the instability is used up. The latest runs of the RAP and HRRR handled the current conditions the best through daybreak, and stayed close to those solutions.

Another low pressure will move north along this front later this afternoon, bringing another round of clouds and showers with it, especially across eastern MA and RI. Drier and more sunny conditions expected from the Worcester Hills west, mainly this morning. Clouds increase this afternoon.

Near normal high temperatures expected.

SHORT TERM /6 PM THIS EVENING THROUGH 6 PM SUNDAY/. Still expecting a sharp western gradient to the precipitation shield, just not quite as certain where that back edge will be. based on the consensus of the 00Z guidance, thinking there will be numerous showers across most of our region at some point tonight. These showers move offshore with the low pressure late tonight into Sunday. rainfall amounts should generally be around a quarter inch for most, with higher amounts up to one inch possible in the more persistent bands. Plenty of sunshine most of the day Sunday. Above normal temperatures expected during this time.

LONG TERM /SUNDAY NIGHT THROUGH FRIDAY/. Highlights .

* Still less humid than we have been, but a warm front brings marginally more humid air on Monday into Tuesday along with scattered shower chances

* Cold front Tuesday ushers in a drier and much cooler airmass for mid to late week

* An offshore low may bring rain chances again around Friday

Details .

Sunday night through Tuesday .

The pattern begins to shift next week with persistent upper level troughing over the eastern U.S. bringing noticeably cooler air by mid week. Sunday night the drier airmass (dewpoints in the 40s) allows for lows to drop 5 to 10 degrees from the previous night, into the upper 40s in the highest elevations to the upper 50s along the coast. The biggest change will be along the east coast where moisture was still lingering early Sunday morning.

By Monday shower chances return courtesy of a warm front lifting north across the region which brings dewpoints back into the mid 50s while temperatures top out in the low to mid 70s. Moisture is marginal on Monday, though, especially in the low levels, so not expecting any showers to be heavy. A 25 to 30 kt low level jet forms overhead and model soundings indicate the mixed layer up to about 850 mb. This will mean breezy southwest winds, gusting to 20 to 25 mph. The column becomes more saturated on Tuesday ahead of the cold front so with the better moisture and forcing, rain chances will increase during the day. Model soundings show several hundred J/kg of CAPE with 30-35 kts of 0-6 km bulk shear, so embedded thunder is possible. How quickly the cold front moves through will determine whether we get another day in the 70s; this looks like the most likely outcome at the moment.

Wednesday through Friday .

Anyone looking for more Fall-like temperatures need only wait for Wednesday! Markedly cooler and drier air moves in with N/NE flow at the surface and 850 mb temps down toward 0C. What this means is that Boston will likely finally have its first sub-70 F high temperature day of the season (a record late date). This pattern with highs in the 60s to near 70 will stick around through the end of the week. As for whether it will be dry or wet, that depends on the eventual track of a surface low that forms off the Delmarva coast. For now Wednesday looks dry but the risk for some gusty winds and heavy rain returns around Thursday/Friday.

AVIATION /12Z SATURDAY THROUGH WEDNESDAY/. Forecaster Confidence Levels.

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

12Z update .

Today . Mainly VFR across the interior, with MVFR more likely towards southeast MA, including the Cape and islands. Scattered showers redeveloping by this afternoon as another low pressure traverses a stalled front. Light W/NW flow across the interior, SE/E flow across Cape and Islands.

Tonight . Mainly VFR across western terminals, MVFR with possible IFR across eastern terminals as low clouds and showers continue. Light westerly flow develops, except across Cape Cod and the Islands where southeast flow prevails.

Sunday . VFR. Breezy W to NW winds.

KBOS Terminal . High confidence in trends. Moderate confidence in timing.

KBDL Terminal . High confidence in trends. Moderate confidence in timing.

Outlook /Sunday Night through Wednesday/ .

Sunday Night through Monday: VFR. Breezy.

Monday Night: VFR. Breezy. Chance SHRA, isolated TSRA.

Tuesday: VFR. Breezy. Chance SHRA, slight chance TSRA.

Tuesday Night: VFR.

Wednesday: VFR. Breezy.

MARINE. Forecaster Confidence Levels.

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

A stalled front along the coastal waters permitted winds to diminish early this morning. Seas will continue to diminish less than 5 ft, at least for a time. Another low pressure will traverse north along this front later today into tonight. Easterly flow increases once more this afternoon, leading to building seas. While winds are expected to generally remain less than 20 kt through Sunday, seas of 5-6 ft are expected across the outer coastal waters. Small Craft Advisories posted once more for these waters through Sunday.

Outlook /Sunday Night through Wednesday/ .

Sunday Night: Winds less than 25 kt. Seas up to 5 ft.

Monday: Low risk for Small Craft Advisory winds with gusts up to 25 kt. Seas up to 5 ft.

Monday Night: Low risk for Small Craft Advisory winds with gusts up to 25 kt. Seas up to 5 ft. Chance of rain showers, slight chance of thunderstorms.

Tuesday through Tuesday Night: Winds less than 25 kt. Areas of seas approaching 5 ft. Chance of rain showers, slight chance of thunderstorms.

Wednesday: 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 . Small Craft Advisory from 9 PM this evening to 9 PM EDT Sunday for ANZ250. Small Craft Advisory from 3 PM this afternoon to 9 PM EDT Sunday for ANZ254-255. Small Craft Advisory from midnight tonight to 9 PM EDT Sunday for ANZ256.

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


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PTCR1 - 8452951 - Potter Cove, Prudence Island, RI 2 mi58 min NE 4.1 G 6 65°F 1018.4 hPa (+0.0)
NAXR1 - Narragansett Bay Reserve, RI 2 mi73 min NE 5.1 65°F 1018 hPa61°F
CPTR1 - 8452944 - Conimicut Light, RI 3 mi58 min 64°F 71°F1017.6 hPa (+0.3)
PRUR1 5 mi58 min 65°F 65°F
QPTR1 - 8454049 - Quonset Point, RI 7 mi58 min NNW 5.1 G 5.1 64°F 71°F1017.8 hPa (+0.0)
PVDR1 8 mi58 min N 4.1 G 6 65°F 1018 hPa (+0.0)
FRXM3 9 mi58 min 65°F 65°F
BLTM3 - 8447387 - Borden Flats Light at Fall River, MA 10 mi58 min NNE 6 G 7 66°F 1017.7 hPa (+0.0)
FOXR1 - 8454000 - Providence, RI 10 mi58 min NE 5.1 G 8 65°F 69°F1017.9 hPa (+0.0)
FRVM3 - 8447386 - Fall River, MA 10 mi58 min 65°F 71°F1017.7 hPa (+0.0)
NWPR1 - 8452660 - Newport, RI 12 mi58 min N 5.1 G 7 66°F 70°F1017.4 hPa (+0.0)
BUZM3 - Buzzards Bay, MA 25 mi58 min NE 9.9 G 11 1018.2 hPa (+0.3)
BZBM3 - 8447930 - Woods Hole, MA 37 mi58 min 66°F 72°F1017 hPa (+0.0)
WAXM3 - Waquoit Bay Reserve, MA 44 mi73 min WNW 1.9 78°F 1017 hPa
NLNC3 - 8461490 - New London, CT 45 mi58 min 62°F 70°F1018.2 hPa (+0.0)
LDLC3 - New London Ledge CT - Ledge Light Weather 46 mi48 min N 8.9 G 9.9 65°F 1017.1 hPa47°F

Wind History for Potter Cove, Prudence Island, RI
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Providence, Theodore Francis Green State Airport, RI6 mi67 minNNW 310.00 miOvercast64°F58°F81%1017.7 hPa
Newport, Newport State Airport, RI10 mi65 minNW 310.00 miOvercast63°F60°F90%1017.2 hPa
Pawtucket, North Central State Airport, RI17 mi62 minN 310.00 miOvercast61°F57°F87%1018.6 hPa
New Bedford, New Bedford Regional Airport, MA20 mi65 minN 010.00 miMostly Cloudy63°F61°F93%1017.1 hPa
Taunton, Taunton Municipal Airport, MA23 mi66 minN 010.00 miOvercast64°F60°F87%1017.3 hPa

Link to 5 minute data for KPVD

Wind History from PVD (wind in knots)
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S9S10SW9SW7S4SW7SW4SW3W5W4W3W3W4CalmN3NW3CalmNW3N3N3N5
1 day agoS13
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Tide / Current Tables for Bristol Highlands, Narragansett Bay, Rhode Island
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Bristol Highlands
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Sat -- 04:06 AM EDT     0.30 feet Low Tide
Sat -- 06:35 AM EDT     Sunrise
Sat -- 11:07 AM EDT     Moonset
Sat -- 11:27 AM EDT     4.51 feet High Tide
Sat -- 04:42 PM EDT     0.66 feet Low Tide
Sat -- 06:36 PM EDT     Sunset
Sat -- 09:02 PM EDT     Moonrise
Sat -- 11:45 PM EDT     3.72 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.72.81.60.70.30.511.62.43.244.44.43.72.51.40.80.70.91.41.92.53.13.6

Tide / Current Tables for Westport River Entrance, Massachusetts Current
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Westport River Entrance
Click for Map
Sat -- 12:03 AM EDT     -0.00 knots Slack
Sat -- 02:28 AM EDT     -2.42 knots Max Ebb
Sat -- 06:27 AM EDT     0.00 knots Slack
Sat -- 06:35 AM EDT     Sunrise
Sat -- 10:08 AM EDT     1.92 knots Max Flood
Sat -- 11:06 AM EDT     Moonset
Sat -- 12:22 PM EDT     -0.00 knots Slack
Sat -- 02:48 PM EDT     -2.45 knots Max Ebb
Sat -- 06:35 PM EDT     Sunset
Sat -- 06:41 PM EDT     0.00 knots Slack
Sat -- 09:02 PM EDT     Moonrise
Sat -- 10:32 PM EDT     1.97 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.1-1.4-2.3-2.3-1.7-1-0.30.411.61.91.60.5-1-2.1-2.4-2-1.2-0.50.20.91.41.91.9

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