Marine Weather and Tide Forecast for Melville, RI
 | Sunrise 5:25 AM Sunset 8:18 PM Moonrise 11:50 PM Moonset 12:55 PM |
Marine Forecasts
NOTE: Zones were updated 3/20/2025. If your report is out of date, please click Edit
ANZ236 Narragansett Bay- 103 Pm Edt Thu Jul 17 2025
.small craft advisory in effect until 8 pm edt this evening - .
This afternoon - SW winds around 15 kt with gusts up to 25 kt. Waves around 3 ft. A slight chance of showers and tstms.
Tonight - SW winds 10 to 15 kt, becoming W after midnight. Gusts up to 25 kt. Waves 2 to 3 ft.
Fri - NW winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt in the afternoon. Waves around 2 ft.
Fri night - W winds 5 to 10 kt, becoming ne after midnight. Waves around 2 ft.
Sat - SE winds 5 to 10 kt, becoming S 10 to 15 kt in the afternoon. Waves around 2 ft.
Sat night - S winds 10 to 15 kt. Gusts up to 20 kt after midnight. Waves around 2 ft. A chance of showers in the evening, then showers likely with a chance of tstms after midnight.
Sun - SW winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft. Showers likely with a chance of tstms.
Sun night through Mon night - N 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.
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 103 Pm Edt Thu Jul 17 2025
Synopsis for massachusetts and rhode island coastal waters - A cold front passes through the waters this evening. High pres then builds in from the west Fri before moving east of the waters Sat. The next cold front will cross the region sometime Sun or Sun night followed by high pres to start the next work week.
7 Day Forecast for Marine Location Near Melville, RI
NEW! Add second zone forecast
| Wickford Click for Map Thu -- 01:15 AM EDT 3.71 feet High Tide Thu -- 05:26 AM EDT Sunrise Thu -- 06:39 AM EDT 0.00 feet Low Tide Thu -- 12:54 PM EDT Moonset Thu -- 01:52 PM EDT 4.25 feet High Tide Thu -- 07:25 PM EDT 0.42 feet Low Tide Thu -- 08:16 PM EDT Sunset Thu -- 08:39 PM EDT Last Quarter Thu -- 11:50 PM EDT Moonrise Tide / Current data from XTide NOT FOR NAVIGATION |
Wickford, Narragansett Bay, Rhode Island, Tide feet
| 12 am |
| 3.3 |
| 1 am |
| 3.7 |
| 2 am |
| 3.6 |
| 3 am |
| 2.9 |
| 4 am |
| 1.8 |
| 5 am |
| 0.8 |
| 6 am |
| 0.1 |
| 7 am |
| 0 |
| 8 am |
| 0.4 |
| 9 am |
| 1.1 |
| 10 am |
| 1.8 |
| 11 am |
| 2.6 |
| 12 pm |
| 3.4 |
| 1 pm |
| 4 |
| 2 pm |
| 4.2 |
| 3 pm |
| 3.9 |
| 4 pm |
| 3 |
| 5 pm |
| 1.8 |
| 6 pm |
| 0.9 |
| 7 pm |
| 0.5 |
| 8 pm |
| 0.5 |
| 9 pm |
| 0.8 |
| 10 pm |
| 1.3 |
| 11 pm |
| 1.9 |
| Westport River Entrance Click for Map Thu -- 01:57 AM EDT -0.00 knots Slack Thu -- 04:34 AM EDT -2.87 knots Max Ebb Thu -- 05:25 AM EDT Sunrise Thu -- 07:54 AM EDT 0.00 knots Slack Thu -- 11:52 AM EDT 2.01 knots Max Flood Thu -- 12:52 PM EDT Moonset Thu -- 02:29 PM EDT -0.00 knots Slack Thu -- 05:03 PM EDT -2.81 knots Max Ebb Thu -- 08:15 PM EDT Sunset Thu -- 08:29 PM EDT 0.00 knots Slack Thu -- 08:39 PM EDT Last Quarter Thu -- 11:48 PM EDT Moonrise Tide / Current data from XTide NOT FOR NAVIGATION |
Westport River Entrance, Massachusetts Current, knots
| 12 am |
| 1.8 |
| 1 am |
| 1.2 |
| 2 am |
| -0.1 |
| 3 am |
| -1.6 |
| 4 am |
| -2.7 |
| 5 am |
| -2.8 |
| 6 am |
| -2 |
| 7 am |
| -0.9 |
| 8 am |
| 0.1 |
| 9 am |
| 0.9 |
| 10 am |
| 1.5 |
| 11 am |
| 1.9 |
| 12 pm |
| 2 |
| 1 pm |
| 1.7 |
| 2 pm |
| 0.7 |
| 3 pm |
| -0.8 |
| 4 pm |
| -2.2 |
| 5 pm |
| -2.8 |
| 6 pm |
| -2.4 |
| 7 pm |
| -1.5 |
| 8 pm |
| -0.5 |
| 9 pm |
| 0.4 |
| 10 pm |
| 1.1 |
| 11 pm |
| 1.5 |
FXUS61 KBOX 171750 AFDBOX
Area Forecast Discussion National Weather Service Boston/Norton MA 150 PM EDT Thu Jul 17 2025
SYNOPSIS
One more day of dangerous heat and humidity is in store for the region today. An approaching cold front may bring hit or miss showers and thunderstorms today, but much of the day will be dry.
The cold front will bring and end to the heat and humidity later tonight with beautiful dry weather Friday and Saturday. Another cold front will likely bring a round of showers and embedded thunderstorms to the region late Saturday night and/or Sunday along with the return of some humidity. This will be short-lived though as a dry and very pleasant airmass moves back in time for the start of the next work week.
NEAR TERM /THROUGH TONIGHT/
Key Messages...
* Hit or miss showers/t-storms today...but much of the day is dry * One more day of dangerous heat/humidity...Heat Indices 95-100 * Any Severe weather threat today should be isolated/localized
Details...
Today...
A shortwave and its associated cluster of showers & t-storms across the mid-Atlantic states early this morning will lift northeast. The guidance indicates that the convection may weaken as it moves northeastward into lingering mid-level ridging
However
diurnal heating may try to offset that later this morning into the mid- afternoon
Therefore
hit or miss showers and thunderstorms may cross the region this morning and into the mid afternoon. We then will need to watch for the approaching cold front and perhaps another risk for isolated/widely scattered convection late in the afternoon and evening
However
subsidence behind initial shortwave and a lot of mid level dry air will probably keep this as an isolated convective threat. Modest instability will quickly develop with Capes on the order of 1500 to 2500+ J/kg along with 25 to 30 knots of effective shear. A fair amount of 0-1 KM helicity will also develop on the order of 100 to 200+ units.
Despite a lot of favorable parameters for severe weather...there is a significant limiting factor. The mid level lapse rates are poor and the forcing is quite limited in our region with the better of it across northern New England. The HRRR is also showing rather limited 2-5 KM UH swaths which might be a red flag
That being said
given the parameters in place if some mesoscale processes can come into play there will be an isolated/localized severe wind threat and even a low risk for a weak tornado given the 0-1 KM helicity. But any severe weather threat should be isolated/localized given the limited forcing. We also should mention that with Pwats near 2"...brief torrential rainfall will also be possible with any thunderstorm.
Outside the convective threat...the majority of the day will feature heat and humidity. High temps will be in the upper 80s to lower 90s allowing heat indices to reach into the 95 to 100 degree range. Heat Advisories remain in place through 7 pm this evening.
SHORT TERM /FRIDAY THROUGH FRIDAY NIGHT/
Key Messages...
* Relief from heat & humidity later tonight with a NW breeze * Mostly sunny Fri with low humidity and highs 80-85
Details...
Tonight and Friday...
Any isolated shower & thunderstorm activity this evening will come to an end later tonight
Otherwise
the main story will be relief from the heat and humidity behind the cold front later tonight and Friday. This much drier air will be ushered in on a northwest breeze which may gust to around 25 mph later tonight into Friday morning.
Low temps tonight will be in the upper 60s to the lower 70s...but with relief from the humidity. This will be followed by mostly sunny & beautiful weather for Fri with highs mainly between 80 and 85 and very comfortable humidity levels. Quite the change from the last few days.
LONG TERM /SATURDAY THROUGH THURSDAY/
Key Messages...
* Dry & very pleasant Fri night and Sat with comfortable humidity
* More humid with a round of showers & embedded t-storms sometime late Sat night and/or Sun with locally heavy rainfall
* Dry pleasant weather returns Mon/Tue/Wed with comfortable humidity
Details...
Friday night and Saturday...
A ridge of high pressure builds over the region resulting in very pleasant weather Fri night into Sat. Low temps Fri night will probably drop into the lower to middle 50s in the outlying locations given light winds/mainly clear skies and a dry airmass in place.
Highs on Sat will be in the 80s with very comfortable humidity.
Saturday night and Sunday...
The next shortwave/cold front will approach southern New England from the west late Sat night into Sun. This will be associated with the return of some humidity and Pwats increasing to around 2 inches.
The forcing with this system looks quite impressive for July standards...so we may see a round of fairly widespread showers and embedded t-storms sometime late Sat night and/or Sun.
Monday through Wednesday...
A ridge of high pressure builds in behind the latest cold front for the start of the next work week. This will bring mainly dry and very pleasant weather to the region. Highs will mainly be in the upper 70s to the middle 80s although by next Wed may be on the warmer side of those numbers.
AVIATION /18Z THURSDAY THROUGH TUESDAY/
Forecaster Confidence Levels...
Low - less than 30 percent.
Moderate - 30 to 60 percent.
High - greater than 60 percent.
18z TAF Update...
Today...Moderate confidence.
Mainly VFR, except MVFR for the South Coast & Cape terminals.
IFR across the Islands. Some light showers and possibly a rumble of thunder over the Islands early this afternoon
Otherwise
brief showers & t- storms possible across the region this afternoon and early evening. The eastward extent of storm activity is uncertain, with greatest chances for TSRA west of ORH. SW winds may gust to between 20 and 25 knots by afternoon.
Tonight...High confidence.
Any isolated shower & t-storm activity should come to an end this evening
Otherwise
VFR conditions as a dry NW flow of air takes over later tonight into Friday. NW winds may gust between 20 and 25 knots behind the cold FROPA overnight into the first half of Friday before diminishing.
Friday... High confidence.
VFR. Gusts diminishing mid-morning. Predominantly NNE winds, though the Islands will likely turn SSE by Friday evening.
KBOS Terminal...Moderate confidence in TAF.
KBDL Terminal...Moderate confidence in TAF.
Outlook /Saturday through Tuesday/...
Saturday: VFR. Breezy.
Saturday Night: Mainly VFR, with areas MVFR possible. Breezy.
SHRA likely, chance TSRA.
Sunday: Mainly VFR, with local MVFR possible. Breezy. Slight chance SHRA, slight chance TSRA.
Sunday Night through Monday Night: VFR.
Tuesday: VFR.
MARINE
Forecaster Confidence Levels...
Low - less than 30 percent.
Medium - 30 to 60 percent.
High - greater than 60 percent.
Today through Friday...High confidence.
Gusty southwest winds near 25 knots develop across our near shore southern waters this afternoon given good mixing ahead of an approaching cold front. We opted to issue a small craft advisory for those near shore southern waters given it is peak boating season. We also expect marginal SCA seas to develop with long southerly fetch across the southern outer-waters by this evening into Friday so we have headlines for that too
Lastly
behind the cold expect a round of NW wind gusts of 25 knots overnight into Fri morning across our northern waters...where we will have additional small craft headlines.
Outlook /Saturday through Tuesday/...
Saturday: Winds less than 25 kt.
Saturday Night: Low risk for Small Craft Advisory winds with gusts up to 25 kt. Seas locally approaching 5 ft. Chance of rain showers, slight chance of thunderstorms.
Sunday: Winds less than 25 kt. Seas locally approaching 5 ft.
Chance of rain showers, slight chance of thunderstorms.
Sunday Night through Tuesday: Winds less than 25 kt.
BOX WATCHES/WARNINGS/ADVISORIES
CT...Heat Advisory until 7 PM EDT this evening for CTZ002>004.
MA...Heat Advisory until 7 PM EDT this evening for MAZ003>007- 010>021-026.
RI...Heat Advisory until 7 PM EDT this evening for RIZ001>007.
MARINE...Small Craft Advisory from midnight tonight to 2 PM EDT Friday for ANZ230-250-251.
Small Craft Advisory until 8 PM EDT this evening for ANZ231>237.
Small Craft Advisory until 2 PM EDT Friday for ANZ254>256.
Area Forecast Discussion National Weather Service Boston/Norton MA 150 PM EDT Thu Jul 17 2025
SYNOPSIS
One more day of dangerous heat and humidity is in store for the region today. An approaching cold front may bring hit or miss showers and thunderstorms today, but much of the day will be dry.
The cold front will bring and end to the heat and humidity later tonight with beautiful dry weather Friday and Saturday. Another cold front will likely bring a round of showers and embedded thunderstorms to the region late Saturday night and/or Sunday along with the return of some humidity. This will be short-lived though as a dry and very pleasant airmass moves back in time for the start of the next work week.
NEAR TERM /THROUGH TONIGHT/
Key Messages...
* Hit or miss showers/t-storms today...but much of the day is dry * One more day of dangerous heat/humidity...Heat Indices 95-100 * Any Severe weather threat today should be isolated/localized
Details...
Today...
A shortwave and its associated cluster of showers & t-storms across the mid-Atlantic states early this morning will lift northeast. The guidance indicates that the convection may weaken as it moves northeastward into lingering mid-level ridging
However
diurnal heating may try to offset that later this morning into the mid- afternoon
Therefore
hit or miss showers and thunderstorms may cross the region this morning and into the mid afternoon. We then will need to watch for the approaching cold front and perhaps another risk for isolated/widely scattered convection late in the afternoon and evening
However
subsidence behind initial shortwave and a lot of mid level dry air will probably keep this as an isolated convective threat. Modest instability will quickly develop with Capes on the order of 1500 to 2500+ J/kg along with 25 to 30 knots of effective shear. A fair amount of 0-1 KM helicity will also develop on the order of 100 to 200+ units.
Despite a lot of favorable parameters for severe weather...there is a significant limiting factor. The mid level lapse rates are poor and the forcing is quite limited in our region with the better of it across northern New England. The HRRR is also showing rather limited 2-5 KM UH swaths which might be a red flag
That being said
given the parameters in place if some mesoscale processes can come into play there will be an isolated/localized severe wind threat and even a low risk for a weak tornado given the 0-1 KM helicity. But any severe weather threat should be isolated/localized given the limited forcing. We also should mention that with Pwats near 2"...brief torrential rainfall will also be possible with any thunderstorm.
Outside the convective threat...the majority of the day will feature heat and humidity. High temps will be in the upper 80s to lower 90s allowing heat indices to reach into the 95 to 100 degree range. Heat Advisories remain in place through 7 pm this evening.
SHORT TERM /FRIDAY THROUGH FRIDAY NIGHT/
Key Messages...
* Relief from heat & humidity later tonight with a NW breeze * Mostly sunny Fri with low humidity and highs 80-85
Details...
Tonight and Friday...
Any isolated shower & thunderstorm activity this evening will come to an end later tonight
Otherwise
the main story will be relief from the heat and humidity behind the cold front later tonight and Friday. This much drier air will be ushered in on a northwest breeze which may gust to around 25 mph later tonight into Friday morning.
Low temps tonight will be in the upper 60s to the lower 70s...but with relief from the humidity. This will be followed by mostly sunny & beautiful weather for Fri with highs mainly between 80 and 85 and very comfortable humidity levels. Quite the change from the last few days.
LONG TERM /SATURDAY THROUGH THURSDAY/
Key Messages...
* Dry & very pleasant Fri night and Sat with comfortable humidity
* More humid with a round of showers & embedded t-storms sometime late Sat night and/or Sun with locally heavy rainfall
* Dry pleasant weather returns Mon/Tue/Wed with comfortable humidity
Details...
Friday night and Saturday...
A ridge of high pressure builds over the region resulting in very pleasant weather Fri night into Sat. Low temps Fri night will probably drop into the lower to middle 50s in the outlying locations given light winds/mainly clear skies and a dry airmass in place.
Highs on Sat will be in the 80s with very comfortable humidity.
Saturday night and Sunday...
The next shortwave/cold front will approach southern New England from the west late Sat night into Sun. This will be associated with the return of some humidity and Pwats increasing to around 2 inches.
The forcing with this system looks quite impressive for July standards...so we may see a round of fairly widespread showers and embedded t-storms sometime late Sat night and/or Sun.
Monday through Wednesday...
A ridge of high pressure builds in behind the latest cold front for the start of the next work week. This will bring mainly dry and very pleasant weather to the region. Highs will mainly be in the upper 70s to the middle 80s although by next Wed may be on the warmer side of those numbers.
AVIATION /18Z THURSDAY THROUGH TUESDAY/
Forecaster Confidence Levels...
Low - less than 30 percent.
Moderate - 30 to 60 percent.
High - greater than 60 percent.
18z TAF Update...
Today...Moderate confidence.
Mainly VFR, except MVFR for the South Coast & Cape terminals.
IFR across the Islands. Some light showers and possibly a rumble of thunder over the Islands early this afternoon
Otherwise
brief showers & t- storms possible across the region this afternoon and early evening. The eastward extent of storm activity is uncertain, with greatest chances for TSRA west of ORH. SW winds may gust to between 20 and 25 knots by afternoon.
Tonight...High confidence.
Any isolated shower & t-storm activity should come to an end this evening
Otherwise
VFR conditions as a dry NW flow of air takes over later tonight into Friday. NW winds may gust between 20 and 25 knots behind the cold FROPA overnight into the first half of Friday before diminishing.
Friday... High confidence.
VFR. Gusts diminishing mid-morning. Predominantly NNE winds, though the Islands will likely turn SSE by Friday evening.
KBOS Terminal...Moderate confidence in TAF.
KBDL Terminal...Moderate confidence in TAF.
Outlook /Saturday through Tuesday/...
Saturday: VFR. Breezy.
Saturday Night: Mainly VFR, with areas MVFR possible. Breezy.
SHRA likely, chance TSRA.
Sunday: Mainly VFR, with local MVFR possible. Breezy. Slight chance SHRA, slight chance TSRA.
Sunday Night through Monday Night: VFR.
Tuesday: VFR.
MARINE
Forecaster Confidence Levels...
Low - less than 30 percent.
Medium - 30 to 60 percent.
High - greater than 60 percent.
Today through Friday...High confidence.
Gusty southwest winds near 25 knots develop across our near shore southern waters this afternoon given good mixing ahead of an approaching cold front. We opted to issue a small craft advisory for those near shore southern waters given it is peak boating season. We also expect marginal SCA seas to develop with long southerly fetch across the southern outer-waters by this evening into Friday so we have headlines for that too
Lastly
behind the cold expect a round of NW wind gusts of 25 knots overnight into Fri morning across our northern waters...where we will have additional small craft headlines.
Outlook /Saturday through Tuesday/...
Saturday: Winds less than 25 kt.
Saturday Night: Low risk for Small Craft Advisory winds with gusts up to 25 kt. Seas locally approaching 5 ft. Chance of rain showers, slight chance of thunderstorms.
Sunday: Winds less than 25 kt. Seas locally approaching 5 ft.
Chance of rain showers, slight chance of thunderstorms.
Sunday Night through Tuesday: Winds less than 25 kt.
BOX WATCHES/WARNINGS/ADVISORIES
CT...Heat Advisory until 7 PM EDT this evening for CTZ002>004.
MA...Heat Advisory until 7 PM EDT this evening for MAZ003>007- 010>021-026.
RI...Heat Advisory until 7 PM EDT this evening for RIZ001>007.
MARINE...Small Craft Advisory from midnight tonight to 2 PM EDT Friday for ANZ230-250-251.
Small Craft Advisory until 8 PM EDT this evening for ANZ231>237.
Small Craft Advisory until 2 PM EDT Friday for ANZ254>256.
Wind History for Quonset Point, RI
toggle option: (graph/table)
| Airport | Dist | Age | Wind kt | Vis | Sky | Weather | Air | DewPt | RH | inHg |
| KOQU QUONSET STATE,RI | 2 sm | 47 min | SSW 11 | 10 sm | Partly Cloudy | 81°F | 77°F | 89% | 29.83 | |
| KUUU NEWPORT STATE,RI | 9 sm | 13 min | SSW 10G20 | 10 sm | Mostly Cloudy | 77°F | 72°F | 83% | 29.83 | |
| KPVD THEODORE FRANCIS GREEN STATE,RI | 10 sm | 46 min | SSW 11 | 10 sm | Mostly Cloudy | 82°F | 73°F | 74% | 29.82 | |
| KSFZ NORTH CENTRAL STATE,RI | 24 sm | 34 min | SW 07G16 | 10 sm | Mostly Cloudy | 82°F | 75°F | 79% | 29.83 |
Link to 1 hour of 5 minute data for KOQU
Terminal Aerodrome Forecast (TAF) for KOQU
Wind History Graph: OQU
(wind in knots)
GEOS Local Image of north east
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Boston, MA,
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