Tiverton, RI Marine Weather and Tide Forecast
L-36.com
Top   Marine   7-Day   NWS   Buoy   Airport   Tide   Map   GEOS   Radar  

Marine Weather and Tide Forecast for Tiverton, RI

May 21, 2024 11:16 AM EDT (15:16 UTC) Change Location
Sunrise 5:17 AM   Sunset 8:05 PM
Moonrise 6:27 PM   Moonset 4:00 AM 
  Print   HELP   Reset   Save   Recall  New
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
    EDIT      HIDE   Help
ANZ236 Narragansett Bay- 1003 Am Edt Tue May 21 2024

This afternoon - S winds 5 to 10 kt. Waves 1 foot or less, then around 2 ft. Areas of fog. Vsby 1 nm or less.

Tonight - SW winds 5 to 10 kt. Waves around 2 ft. Areas of fog. Vsby 1 nm or less.

Wed - 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. Areas of fog in the morning with vsby 1 to 3 nm.

Wed night - SW winds 10 to 15 kt. Gusts up to 20 kt in the evening. Waves around 2 ft.

Thu - SW winds 10 to 15 kt. Waves around 2 ft. A chance of showers in the afternoon.

Thu night - SW winds 5 to 10 kt. Waves around 2 ft. Showers likely with a chance of tstms in the evening, then a chance of showers after midnight.

Fri through Sat night - SE winds 5 to 10 kt. Waves around 2 ft.
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 1003 Am Edt Tue May 21 2024

Synopsis for massachusetts and rhode island coastal waters - High pres remains planted off the mid atlantic coast today. The high drifts further southeast on Wed. A cold front moves into new eng Thu. A weak high builds in on Fri. Unsettled through the weekend into early next week with several lows sliding through.


7 Day Forecast for Marine Location Near Tiverton, RI
   Hourly   EDIT   Help   Map   HIDE
NEW! Add second zone forecast


Area Discussion for - Boston, MA
      HIDE   Help   
NOTE: mouseover dotted underlined text for definition
FXUS61 KBOX 211410 AFDBOX

Area Forecast Discussion National Weather Service Boston/Norton MA 1010 AM EDT Tue May 21 2024

SYNOPSIS
A high pressure remains just south of New England, setting the stage for summerlike warmth today through Thursday, at least away from the immediate south coast. Generally dry weather is expected through Wednesday, but an approaching cold front may bring a round of scattered showers and thunderstorms Thursday afternoon and evening. A few strong to severe storms are possible. Still mild and drier on Friday. Unsettled through this weekend into early next week with more seasonable temperatures.

NEAR TERM /THROUGH TONIGHT/

10 am update...

Fog and stratus has cleared out for much of the region, save for a smattering of spots along the immediate south coast and the CT valley. Temperatures are on track, in the upper 60s to low 70s at this hour.

Previous discussion...

High pressure to our south will remain the dominant weather feature impacting our forecast. abundant stratus and fog trapped beneath a subsidence inversion is expected to start the day across RI, a large portion of eastern MA, and even parts of northeast CT. Last several runs of the GLAMP guidance seem to have a rather good handle on the status now. As such, used that as the basis for the forecast today.

This high pressure to our south should maintain dry weather across most of southern New England today. A mid level shortwave is expected to arrive this afternoon into this evening across northern New England. However, it may have enough influence when combined with daytime heating to lead to a few showers across portions of northwest MA.

Temperatures will be complicated. Much will depend on how quickly the stratus breaks. Thinking areas away from southern RI and southeast MA should break out into sunshine rather quickly.
Towards the south coast, it could be early afternoon before getting appreciable sunshine. There is also the issue of the light south to southwest wind coming in off ocean waters in the 50s. Expecting much of interior southern New England to reach the 80s, with a sharp gradient towards the south coast, where temperatures should struggle to get out of the 60s.

SHORT TERM /WEDNESDAY/
Not much change to the overall synoptic pattern tonight into Wednesday. Expecting more stratus and fog tonight, but with more of a southwest wind at the surface, it should not extend as far inland. More sunshine and a higher starting point from overnight lows, thinking high temperatures should be about 3-5 degrees higher than Tuesday. This could mean some readings around 90 across the interior, with another sharp gradient into the 60s towards the south coast.

Dry weather should prevail, with just a low risk for an afternoon shower or thunderstorm towards western MA.

LONG TERM /WEDNESDAY NIGHT THROUGH MONDAY/
Highlights

* Strong to severe thunderstorms possible on Thu as a cold front sweeps through. Temps remain above normal.

* Dry and quiet weather Fri with above normal temps persisting.

* Turning more seasonable temperature wise this weekend. Lot of uncertainty at this point on how things evolve, but it could be unsettled. No washouts anticipated.

* Still unsettled as we head into early next week.

Wednesday Night through Thursday...

A cutoff low will be situated over the Upper Mississippi River Valley/western Ontario Wed Night. The cutoff will rotate northeastward into northern Ontario by late Thu. A shortwave trough rotating around the cutoff will lift from the central Great Lakes into the eastern Great Lakes by early Thu and into New England by late in the day. In response to this forcing a cold front will slide through the region.

The main concern of the extended is this timeframe as there will be a risk for strong to severe thunderstorms. Should note that there is uncertainty in the forecast as convective cloud debris from the previous day could limit the instability that we realize. Need to keep this in mind as all pieces of guidance show mid level clouds (RH in 500-700 hPa layer). The current 00Z NAM clears this very quickly and allows for a large amount of destabilization, whereas the GFS is much more expansive and does not clear us, which results in less destabilization. The GEFS/EPS guidance are muted with low/mod (10-50 percent) probs of SBCAPE AOA 1000 J/kg, which generally highlights CT to RI.
The GEPS guidance is much more amped up with mod to high (40-70+ percent) probs of SBCAPE AOA 1000 J/kg, which highlights our interior. The GEPS even shows some low probs of SBCAPE AOA 2000 J/kg. Given the uncertainty in the earlier day cloud cover will definitely be something we need to keep an eye on. This also impacts what low/mid level lapse rates we realize, but there is indication of 7-9 degree C low level lapse rates in a well mixed boundary layer. The mid level lapse from the GFS/ECMWF/GEM are not bad at 6-8, but the NAM is pretty poultry.

The moisture will be more than sufficient for thunderstorm development along with deep layer shear. Models are in pretty solid agreement with deep layer shear increasing to 20-40 kts on Thu. Didn't stray from the NBM dew points given the southwesterly warm air advection. Will feel quite muggy out Thu with dew points in the 60s for a good chunk of southern New England. Could also potentially have some heavier downpours as these showers/storms are moving through. Both the NAEFS/EPS guidance indicate our PWATs are around 2- 2.5 STD above model climo, which is roughly around values of 1-1.5 inches. Our warm cloud layer depths are right around 2.5-3.5 km, so there could be efficient rain processes going on. The only hindrance is that the front is pretty progressive, so think the flooding threat will be pretty minimal outside of our typical urban/nuisance spots.

Provided we clear out there will be a risk for strong to severe thunderstorms. The CIPs guidance still from last evening, but think it highlights the risk well with a 15-30% risk across southern New England with the highest probs across western MA/CT. Could have both a wind and hail threat given the probs, but the wind appears to be the higher risk at this point in time. The latest CSU ML guidance also highlights the wind/hail risk, but with a 5 to 15 percent probability. Both the NCAR MPAS and C-SHiELD guidance from last night show low to mod probs of 2-5 km Updraft Helicity > 75 units, which highlights interior southern New England. Main threats for Thu at this point would be strong/damaging winds and hail.

Expecting temps to be quite mild with the SWly warm air advection. This will park 17-22 degree Celsius 925 hPa temps overhead. The end result will be widespread 80s away from the immediate south coast. Temps across the south coast will generally be in the 70s.

Friday...

A ridge axis builds from the mid/upper Mississippi River Valley Thu Night into the eastern Great Lakes/Mid Atlantic by Fri afternoon. A weak high builds into southern New England during this timeframe.

Dry and quiet weather anticipated during this timeframe. Will have another mild day across southern New England with 925 hPa temps ranging from 19-21 Celsius. There is some uncertainty on the temps as some guidance keeps our wind SWly and other WNW/NW.
For now the NBM looked reasonable with fairly widespread low/mid 80 degree highs away from the immediate south coast.

This weekend into early next week...

Caught in quasi-zonal flow pattern with waves sliding through.
There is considerable uncertainty how a the blocky pattern over the Northern Plains/Pacific NW breaks down. At this point looks like we could have several waves swing through with perhaps a more substantial trough early next week. The result is an unsettled pattern. At this point have stuck with the NBM, which keeps spotty shower chances through the weekend. Though it does not look like there are any washouts at this point. Better shot for the washout/heavier precip comes early next week. The NAEFS/EPS guidance indicate PWATS around 1-1.5 STD above model climo. Temperatures returning to more seasonable values during this period.

AVIATION /14Z TUESDAY THROUGH SATURDAY/
Forecast Confidence Levels:

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

Today...High confidence in trends, moderate in exact timing.

Mix of VFR conditions across portions of the interior to IFR/LIFR stratus and fog across the CT River Valley, RI and eastern MA. Should see the IFR/LIFR stratus and fog burn off for most roughly 12-14Z. The only exception is across the Cape/Islands where may not be until 16-18Z, though ACK may only briefly improve to VFR - but the low ceilings linger. Winds out of the S/SW at 5-10 kts. Could briefly see the sea breeze develop across eastern coastal locations roughly 16-20Z, but some uncertainty in if winds will be light enough in lowest 2kft per RAP soundings.

Tonight...High confidence in trends, moderate in exact timing.

Conditions deteriorate to IFR/LIFR across the south coast, especially near and SE of the I-95 corridor. The only exception is for the Boston metro area where am anticipating the SWly component to keep the fog/stratus at bay. Some uncertainty if this stratus/fog moves up the CT River Valley, so have only hinted at BAF. Winds relatively light (<10 kts) out of the SW.

Wednesday...High confidence.

Should see any IFR/LIFR stratus and fog burning off roughly 12-15Z, though may linger longer for ACK. Elsewhere VFR with SW winds 5-10 kts and 15-20 kt gusts during the afternoon.

KBOS TAF...High confidence.

VFR through the day, though there will be some IFR ceilings lingering through roughly 13-14Z. Already in the process of burning off, so think we remain VFR. Winds S to SW at 5-10 kts.
Winds shift more SW tonight. Could briefly sea breeze between 16-20Z, but some uncertainty as winds within the lowest 2 kft are borderline.

KBDL TAF...High confidence.

IFR stratus/fog burns off by 14Z and will remain VFR through rest of TAF. Not out of question stratus/fog comes back in tonight, but confidence not high enough to include in latest update. Winds S 5-10 kts today shifting to the SW tonight.

Outlook /Wednesday Night through Saturday/...

Wednesday Night: VFR. Breezy. Slight chance SHRA.

Thursday: Mainly VFR, with local MVFR possible. Breezy. Chance SHRA, slight chance TSRA.

Thursday Night: VFR. Chance SHRA, isolated TSRA.

Friday through Friday Night: VFR.

Saturday: VFR. Slight chance SHRA.

MARINE
Forecaster Confidence Levels:

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

Through Wednesday...High Confidence.

High pressure south of the waters maintains relatively light winds and seas through Wednesday. The main concern will be poor visibility in areas of fog reducing visibility to less than 1 mile at times, especially early this morning, and again Tuesday night.

Outlook /Wednesday Night through Saturday/...

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

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

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

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

Friday Night: Winds less than 25 kt.

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

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




Weather Reporting Stations
   EDIT       HIDE   Help
Stations Dist Age Wind Air TempWater Temp WavesinHgDewPt
BLTM3 - 8447387 - Borden Flats Light at Fall River, MA 5 mi46 min WSW 6G6 58°F 30.01
FRXM3 5 mi46 min 61°F 57°F
PRUR1 5 mi46 min 56°F 55°F
FRVM3 - 8447386 - Fall River, MA 6 mi46 min 60°F 56°F30.02
NAXR1 - Narragansett Bay Reserve, RI 7 mi91 min WNW 4.1 61°F 30.0155°F
PTCR1 - 8452951 - Potter Cove, Prudence Island, RI 7 mi46 min SW 5.1G9.9 61°F 30.03
CPTR1 - 8452944 - Conimicut Light, RI 9 mi46 min SE 11G12 56°F 58°F30.01
NWPR1 - 8452660 - Newport, RI 11 mi46 min S 11G12 55°F 56°F30.02
PDVR1 11 mi46 min SSE 11G12 60°F 29.9955°F
QPTR1 - 8454049 - Quonset Point, RI 11 mi46 min S 14G15 57°F 30.01
PVDR1 14 mi46 min SSE 8.9G11 60°F 30.0156°F
FOXR1 - 8454000 - Providence, RI 16 mi46 min SSE 8.9G12 61°F 56°F30.00
NBGM3 16 mi46 min WSW 9.9G13 63°F 30.02
44085 19 mi46 min 51°F 54°F1 ft
BUZM3 - Buzzards Bay, MA 19 mi76 min SSW 8.9G9.9 50°F 30.04
BZBM3 - 8447930 - Woods Hole, MA 29 mi46 min 54°F 56°F30.03
44097 - Block Island, RI (154) 46 mi50 min 50°F3 ft
44090 49 mi46 min 56°F 53°F1 ft


Wind History for Borden Flats Light at Fall River, MA
(wind in knots)    EDIT      HIDE   Help
toggle option: (graph/table)



Airport Reports
    EDIT      HIDE   Help   Click EDIT to display multiple airports. Follow links for more data.
AirportDistAgeWind ktVisSkyWeatherTempDewPtRHinHg
KUUU NEWPORT STATE,RI 8 sm23 minS 0910 smA Few Clouds57°F54°F88%30.01
KOQU QUONSET STATE,RI 11 sm26 minSSW 1010 smPartly Cloudy64°F52°F64%30.00
KPVD THEODORE FRANCIS GREEN STATE,RI 13 sm25 minSSE 1010 smMostly Cloudy64°F57°F77%30.00
KEWB NEW BEDFORD RGNL,MA 14 sm23 minS 0510 smClear68°F57°F68%29.99
KTAN TAUNTON MUNI KING FIELD,MA 19 sm24 minW 0510 smClear70°F57°F64%29.99
Link to 5 minute data for KUUU


Wind History from UUU
(wind in knots)
toggle option: (graph/table)


Tide / Current for Anthony Point, Sakonnet River, Narragansett Bay, Rhode Island
   
EDIT   Weekend mode (on/off)   HIDE   Help
Anthony Point
Click for Map
Tue -- 12:42 AM EDT     0.30 feet Low Tide
Tue -- 03:59 AM EDT     Moonset
Tue -- 05:19 AM EDT     Sunrise
Tue -- 06:59 AM EDT     3.54 feet High Tide
Tue -- 12:24 PM EDT     0.22 feet Low Tide
Tue -- 06:27 PM EDT     Moonrise
Tue -- 07:18 PM EDT     4.43 feet High Tide
Tue -- 08:03 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Anthony Point, Sakonnet River, Narragansett Bay, Rhode Island, Tide feet
12
am
0.4
1
am
0.3
2
am
0.5
3
am
1
4
am
1.7
5
am
2.5
6
am
3.3
7
am
3.5
8
am
3.2
9
am
2.4
10
am
1.4
11
am
0.6
12
pm
0.2
1
pm
0.3
2
pm
0.6
3
pm
1.2
4
pm
2.1
5
pm
3
6
pm
3.9
7
pm
4.4
8
pm
4.3
9
pm
3.5
10
pm
2.3
11
pm
1.2


Tide / Current for Westport River Entrance, Massachusetts Current
   EDIT      HIDE   Help
Westport River Entrance
Click for Map
Tue -- 02:21 AM EDT     0.00 knots Slack
Tue -- 03:59 AM EDT     Moonset
Tue -- 05:19 AM EDT     Sunrise
Tue -- 05:43 AM EDT     2.23 knots Max Flood
Tue -- 08:03 AM EDT     -0.01 knots Slack
Tue -- 10:28 AM EDT     -2.22 knots Max Ebb
Tue -- 02:37 PM EDT     0.00 knots Slack
Tue -- 06:02 PM EDT     2.05 knots Max Flood
Tue -- 06:26 PM EDT     Moonrise
Tue -- 08:03 PM EDT     Sunset
Tue -- 08:16 PM EDT     -0.00 knots Slack
Tue -- 10:46 PM EDT     -2.44 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Westport River Entrance, Massachusetts Current, knots
12
am
-1.6
1
am
-1
2
am
-0.3
3
am
0.5
4
am
1.4
5
am
2
6
am
2.2
7
am
1.5
8
am
0.1
9
am
-1.4
10
am
-2.1
11
am
-2.1
12
pm
-1.7
1
pm
-1.1
2
pm
-0.4
3
pm
0.3
4
pm
1
5
pm
1.7
6
pm
2
7
pm
1.7
8
pm
0.4
9
pm
-1.1
10
pm
-2.2
11
pm
-2.4


Weather Map
      HIDE   Help


GEOS Local Image of north east   
EDIT   HIDE



Boston, MA,




NOTICE: Some pages have affiliate links to Amazon. As an Amazon Associate, I earn from qualifying purchases. Please read website Cookie, Privacy, and Disclamers by clicking HERE. To contact me click HERE. For my YouTube page click HERE