Marine Weather and Tide Forecast for Westerly, RI
November 30, 2023 2:53 AM EST (07:53 UTC)
Sunrise 6:51AM Sunset 4:20PM Moonrise 8:02PM Moonset 11:16AM
ANZ237 Block Island Sound- 101 Am Est Thu Nov 30 2023
Rest of tonight..W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft.
Thu..SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft.
Thu night..SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft.
Fri..SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft.
Fri night..SW winds 5 to 10 kt, becoming W after midnight. Seas 2 to 3 ft. Rain.
Sat and Sat night..NE winds 5 to 10 kt. Seas 2 to 3 ft.
Sun through Mon..NW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. A chance of rain.
Mon night..N winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. A chance of rain.
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.
Rest of tonight..W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft.
Thu..SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft.
Thu night..SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft.
Fri..SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft.
Fri night..SW winds 5 to 10 kt, becoming W after midnight. Seas 2 to 3 ft. Rain.
Sat and Sat night..NE winds 5 to 10 kt. Seas 2 to 3 ft.
Sun through Mon..NW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. A chance of rain.
Mon night..N winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. A chance of rain.
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 101 Am Est Thu Nov 30 2023
Synopsis for massachusetts and rhode island coastal waters.. High pres builds to our south today through Fri. A frontal system moves through later on Fri into early Sat. Active pattern continues late Sat into early next week.
Synopsis for massachusetts and rhode island coastal waters.. High pres builds to our south today through Fri. A frontal system moves through later on Fri into early Sat. Active pattern continues late Sat into early next week.
Area Discussion for - Boston, MA
(on/off) HelpNOTE: mouseover dotted underlined text for definition
FXUS61 KBOX 300628 AFDBOX
Area Forecast Discussion National Weather Service Boston/Norton MA 128 AM EST Thu Nov 30 2023
SYNOPSIS
High pressure provides quiet weather pattern through Friday morning. Then becoming a more active weather pattern late Friday through early next week. While there will be several opportunities for cloudiness and rainy conditions in this period, storm systems through early next week look to be weak and progressive. A stronger frontal system may develop around early to mid next week. Temperatures trend above normal late this week into the weekend, before a cooldown for early next week.
NEAR TERM /UNTIL 6 AM THIS MORNING/
1:30 AM Update:
Chilly night in progress with many locations in the 20s, although temps beginning to level off or even rise a few degs into the 30s, as WAA clouds moving across SNE was west to east.
Otherwise, dry weather prevails overnight and southwest winds along with slowly rising temps.
SHORT TERM /6 AM THIS MORNING THROUGH 6 PM FRIDAY/
Highlights:
* Dry conditions continue Thursday along with warmer afternoon temperatures.
1025mb high pressure centered across southeastern United States will shift east during the day, along with subtle mid-level ridging. A few morning clouds does give way to a mostly sunny late morning and afternoon. With our position near the 'top' of the surface ridge of high pressure, wind direction becomes southwest. 925mb temperatures will have a boost going from -6C on Wednesday to +3C on Thursday.
The WAA boost the afternoon temperatures into the mid/upper-40s, solid ten degrees warmer than Wednesday. Not out of the question a few places along the south coast and islands reach 50-52 degrees.
As mentioned, the flow is out of the southwest, 925mb winds are 20 to 30 knots. Given a shallow boundary layer, don't expect all that wind to mix down to the surface. Southwest wind of 10 to 15 mph with occasional gusts to 20 mph.
Dry conditions continue Thursday night into Friday morning with mostly clear skies. Higher PWATs slowly advect northeast overnight ahead of our next system, more on that in the extended section of the AFD. Southwest flow/ WAA at 925mb continues into the overnight hours, reaching +6C/+8C by early Friday morning. Keeping minimum temperatures Thursday night warmer than the previous two nights, lows are in the mid to upper-30s.
LONG TERM /FRIDAY NIGHT THROUGH WEDNESDAY/
Highlights:
* Active pattern as several weak frontal systems moving through Southern New England bring mainly light rains Fri thru the weekend. Temps through the weekend trend above normal, especially with nighttime lows.
* Pattern change around early to mid next week may offer a stronger frontal system around Mon or Tue but uncertainty is large. Temps early to mid next week trend cooler with near to below normal temps favored.
Details:
Main governing features for this portion of the forecast are an anomalously strong subtropical ridge over the eastern Gulf of Mexico/SW Atlantic vicinity and a rather broad trough over the Rockies and northern/central Plains states. It creates a period of SW flow aloft bringing a period of milder than normal temps through at least the upcoming weekend or into early next week. But it is also shaping up to be a fairly active weather pattern with multiple, if weak, shortwaves aloft move through the SW flow. Uncertainties through the weekend stem from the timing of these weak-amplitude shortwave disturbances; while early next week also looks unsettled, there is greater uncertainty on both the strength and timing of a frontal system for early to mid next week.
Friday through the Weekend:
Increasing cloudiness Fri with initial progressive and weak- amplitude 500 mb wave moving through the OH Valley and into the Northeast by Fri aftn and evening. Focused highest PoP into the afternoon to early evening. Temperature profiles even at terrain would seem to favor a rain event, with total rain amts around a quarter inch or less. A brief break to rainy conditions before another weak impulse (and weaker than the first one) moves in early on Sat. Expect lighter QPF amts with this passing system as better forcing passes to our north. Sunday looks to be a relatively drier day but with a lot of cloud cover, but may become more active again later in the day and into the evening.
SW flow aloft will maintain relatively mild low level temps, and nighttime lows also stand to be elevated a bit compared to normal owing to the abundant cloud cover. Highs in the 40s to lower 50s with nighttime lows mid 30s to near 40.
Early to Mid Next Week:
SE CONUS ridge pattern aloft seems to break down at some point early to mid next week with broad troughing moving eastward into the Gt Lakes and Northeast states. As that pattern evolves and changes, that could herald a stronger frontal system as indicated by some solutions as soon as Mon or Tue. Kept PoP at chance levels vs NBM's Likelies given the uncertainties both in timing and in strength, with the ECMWF being considerably stronger than GFS or the Canadian in this timeframe.
Temps may begin near to above normal to start next week, but we should see temperatures return to near to below normal as we move into mid next week.
AVIATION /06Z THURSDAY THROUGH MONDAY/
Forecast Confidence Levels:
Low - less than 30 percent.
Moderate - 30 to 60 percent.
High - greater than 60 percent.
06z TAF Update:
Today...high confidence.
VFR, dry weather and SW winds 10-15 kt, gusts up to 20 kt possible Cape Cod and Islands.
Tonight...high confidence.
VFR, dry weather along with increasing SW winds, 15-20 kt but gusting up to 25 kt across Cape Cod and Islands.
Friday...high confidence.
Dry weather and VFR to begin the day, but by days end, light rain overspreads much of the region from west to east with VFR cloud bases, but MVFR across western MA. SW winds 10-15 kt, gusting up to 20 kt possible Cape Cod and the Islands.
KBOS Terminal...High confidence in TAF. VFR, dry weather and SW winds 10-15 kt.
KBDL Terminal...High confidence in TAF. VFR, dry weather and SW winds 10-15 kt.
Outlook /Friday Night through Monday/...
Friday Night: Mainly VFR, with local IFR possible. RA, slight chance FZRA.
Saturday: Mainly VFR, with local MVFR possible. Slight chance RA.
Saturday Night: Mainly VFR, with areas IFR possible. Slight chance RA.
Sunday: Mainly VFR, with areas IFR possible. Chance RA.
Sunday Night: MVFR/IFR conditions possible. Breezy. Chance RA.
Monday: Mainly VFR, with local IFR possible. Breezy. Chance RA.
MARINE
Forecaster Confidence Levels:
Low - less than 30 percent.
Medium - 30 to 60 percent.
High - greater than 60 percent.
Tonight...High confidence.
West/Southwest winds 10-15 knots, gusting up to 20 kt. Dry weather and good visibility, the only exception will be across the southern waters, where scattered rain/snow showers possible during the evening hours. Seas 2 to 4 feet.
Thursday...High confidence.
High pressure south of New England provides quiet boating weather.
Southwest winds 10-15 knots, few gusts up to 20 knots possible. Dry weather and good visibility. Seas 2 to 4 feet, approaching 5 feet on the southern outer waters.
Thursday Night...High Confidence.
High pressure shifts east. Increasing southwest winds 15-20 knots with gusts approaching 25 knots. Seas building 3 to 5 feet. Held off on issuing a SCA due to the marginal nature, but future updates may include this advisory.
Outlook /Friday Night through Monday/...
Friday: Winds less than 25 kt. Areas of seas approaching 5 ft.
Rain likely.
Friday Night: Winds less than 25 kt. Seas locally approaching 5 ft. Rain.
Saturday through Saturday Night: Winds less than 25 kt. Areas of seas approaching 5 ft. Slight chance of rain.
Sunday: Winds less than 25 kt. Areas of seas approaching 5 ft.
Chance of rain.
Sunday Night: Winds less than 25 kt. Seas up to 5 ft. Chance of rain.
Monday: Low risk for Small Craft Advisory winds with gusts up to 25 kt. Seas up to 5 ft. Chance of rain.
BOX WATCHES/WARNINGS/ADVISORIES
CT...None.
MA...None.
RI...None.
MARINE...None.
Area Forecast Discussion National Weather Service Boston/Norton MA 128 AM EST Thu Nov 30 2023
SYNOPSIS
High pressure provides quiet weather pattern through Friday morning. Then becoming a more active weather pattern late Friday through early next week. While there will be several opportunities for cloudiness and rainy conditions in this period, storm systems through early next week look to be weak and progressive. A stronger frontal system may develop around early to mid next week. Temperatures trend above normal late this week into the weekend, before a cooldown for early next week.
NEAR TERM /UNTIL 6 AM THIS MORNING/
1:30 AM Update:
Chilly night in progress with many locations in the 20s, although temps beginning to level off or even rise a few degs into the 30s, as WAA clouds moving across SNE was west to east.
Otherwise, dry weather prevails overnight and southwest winds along with slowly rising temps.
SHORT TERM /6 AM THIS MORNING THROUGH 6 PM FRIDAY/
Highlights:
* Dry conditions continue Thursday along with warmer afternoon temperatures.
1025mb high pressure centered across southeastern United States will shift east during the day, along with subtle mid-level ridging. A few morning clouds does give way to a mostly sunny late morning and afternoon. With our position near the 'top' of the surface ridge of high pressure, wind direction becomes southwest. 925mb temperatures will have a boost going from -6C on Wednesday to +3C on Thursday.
The WAA boost the afternoon temperatures into the mid/upper-40s, solid ten degrees warmer than Wednesday. Not out of the question a few places along the south coast and islands reach 50-52 degrees.
As mentioned, the flow is out of the southwest, 925mb winds are 20 to 30 knots. Given a shallow boundary layer, don't expect all that wind to mix down to the surface. Southwest wind of 10 to 15 mph with occasional gusts to 20 mph.
Dry conditions continue Thursday night into Friday morning with mostly clear skies. Higher PWATs slowly advect northeast overnight ahead of our next system, more on that in the extended section of the AFD. Southwest flow/ WAA at 925mb continues into the overnight hours, reaching +6C/+8C by early Friday morning. Keeping minimum temperatures Thursday night warmer than the previous two nights, lows are in the mid to upper-30s.
LONG TERM /FRIDAY NIGHT THROUGH WEDNESDAY/
Highlights:
* Active pattern as several weak frontal systems moving through Southern New England bring mainly light rains Fri thru the weekend. Temps through the weekend trend above normal, especially with nighttime lows.
* Pattern change around early to mid next week may offer a stronger frontal system around Mon or Tue but uncertainty is large. Temps early to mid next week trend cooler with near to below normal temps favored.
Details:
Main governing features for this portion of the forecast are an anomalously strong subtropical ridge over the eastern Gulf of Mexico/SW Atlantic vicinity and a rather broad trough over the Rockies and northern/central Plains states. It creates a period of SW flow aloft bringing a period of milder than normal temps through at least the upcoming weekend or into early next week. But it is also shaping up to be a fairly active weather pattern with multiple, if weak, shortwaves aloft move through the SW flow. Uncertainties through the weekend stem from the timing of these weak-amplitude shortwave disturbances; while early next week also looks unsettled, there is greater uncertainty on both the strength and timing of a frontal system for early to mid next week.
Friday through the Weekend:
Increasing cloudiness Fri with initial progressive and weak- amplitude 500 mb wave moving through the OH Valley and into the Northeast by Fri aftn and evening. Focused highest PoP into the afternoon to early evening. Temperature profiles even at terrain would seem to favor a rain event, with total rain amts around a quarter inch or less. A brief break to rainy conditions before another weak impulse (and weaker than the first one) moves in early on Sat. Expect lighter QPF amts with this passing system as better forcing passes to our north. Sunday looks to be a relatively drier day but with a lot of cloud cover, but may become more active again later in the day and into the evening.
SW flow aloft will maintain relatively mild low level temps, and nighttime lows also stand to be elevated a bit compared to normal owing to the abundant cloud cover. Highs in the 40s to lower 50s with nighttime lows mid 30s to near 40.
Early to Mid Next Week:
SE CONUS ridge pattern aloft seems to break down at some point early to mid next week with broad troughing moving eastward into the Gt Lakes and Northeast states. As that pattern evolves and changes, that could herald a stronger frontal system as indicated by some solutions as soon as Mon or Tue. Kept PoP at chance levels vs NBM's Likelies given the uncertainties both in timing and in strength, with the ECMWF being considerably stronger than GFS or the Canadian in this timeframe.
Temps may begin near to above normal to start next week, but we should see temperatures return to near to below normal as we move into mid next week.
AVIATION /06Z THURSDAY THROUGH MONDAY/
Forecast Confidence Levels:
Low - less than 30 percent.
Moderate - 30 to 60 percent.
High - greater than 60 percent.
06z TAF Update:
Today...high confidence.
VFR, dry weather and SW winds 10-15 kt, gusts up to 20 kt possible Cape Cod and Islands.
Tonight...high confidence.
VFR, dry weather along with increasing SW winds, 15-20 kt but gusting up to 25 kt across Cape Cod and Islands.
Friday...high confidence.
Dry weather and VFR to begin the day, but by days end, light rain overspreads much of the region from west to east with VFR cloud bases, but MVFR across western MA. SW winds 10-15 kt, gusting up to 20 kt possible Cape Cod and the Islands.
KBOS Terminal...High confidence in TAF. VFR, dry weather and SW winds 10-15 kt.
KBDL Terminal...High confidence in TAF. VFR, dry weather and SW winds 10-15 kt.
Outlook /Friday Night through Monday/...
Friday Night: Mainly VFR, with local IFR possible. RA, slight chance FZRA.
Saturday: Mainly VFR, with local MVFR possible. Slight chance RA.
Saturday Night: Mainly VFR, with areas IFR possible. Slight chance RA.
Sunday: Mainly VFR, with areas IFR possible. Chance RA.
Sunday Night: MVFR/IFR conditions possible. Breezy. Chance RA.
Monday: Mainly VFR, with local IFR possible. Breezy. Chance RA.
MARINE
Forecaster Confidence Levels:
Low - less than 30 percent.
Medium - 30 to 60 percent.
High - greater than 60 percent.
Tonight...High confidence.
West/Southwest winds 10-15 knots, gusting up to 20 kt. Dry weather and good visibility, the only exception will be across the southern waters, where scattered rain/snow showers possible during the evening hours. Seas 2 to 4 feet.
Thursday...High confidence.
High pressure south of New England provides quiet boating weather.
Southwest winds 10-15 knots, few gusts up to 20 knots possible. Dry weather and good visibility. Seas 2 to 4 feet, approaching 5 feet on the southern outer waters.
Thursday Night...High Confidence.
High pressure shifts east. Increasing southwest winds 15-20 knots with gusts approaching 25 knots. Seas building 3 to 5 feet. Held off on issuing a SCA due to the marginal nature, but future updates may include this advisory.
Outlook /Friday Night through Monday/...
Friday: Winds less than 25 kt. Areas of seas approaching 5 ft.
Rain likely.
Friday Night: Winds less than 25 kt. Seas locally approaching 5 ft. Rain.
Saturday through Saturday Night: Winds less than 25 kt. Areas of seas approaching 5 ft. Slight chance of rain.
Sunday: Winds less than 25 kt. Areas of seas approaching 5 ft.
Chance of rain.
Sunday Night: Winds less than 25 kt. Seas up to 5 ft. Chance of rain.
Monday: Low risk for Small Craft Advisory winds with gusts up to 25 kt. Seas up to 5 ft. Chance of rain.
BOX WATCHES/WARNINGS/ADVISORIES
CT...None.
MA...None.
RI...None.
MARINE...None.
toggle option: (graph/table)
No data
Airport Reports
EDIT (on/off) Help Click EDIT to display multiple airports. Follow links for more data.| Airport | Dist | Age | Wind kt | Vis | Sky | Weather | Temp | DewPt | RH | inHg |
| KWST WESTERLY STATE,RI | 3 sm | 60 min | W 07 | 10 sm | Overcast | 36°F | 10°F | 35% | 30.07 | |
| KGON GROTONNEW LONDON,CT | 12 sm | 57 min | WNW 09 | 10 sm | Overcast | 36°F | 12°F | 38% | 30.07 | |
| KBID BLOCK ISLAND STATE,RI | 20 sm | 57 min | W 14 | 10 sm | Overcast | 36°F | 23°F | 60% | 30.08 | |
| KMTP MONTAUK,NY | 21 sm | 59 min | WSW 06 | -- | 37°F | 19°F | 48% | 30.08 |
Wind History from WST
(wind in knots)Westerly
Click for Map
Wed -- 04:16 AM EST 0.27 feet Low Tide
Wed -- 06:51 AM EST Sunrise
Wed -- 09:24 AM EST Moonset
Wed -- 09:56 AM EST 3.35 feet High Tide
Wed -- 04:19 PM EST Sunset
Wed -- 05:08 PM EST -0.05 feet Low Tide
Wed -- 06:00 PM EST Moonrise
Wed -- 10:33 PM EST 2.36 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Wed -- 04:16 AM EST 0.27 feet Low Tide
Wed -- 06:51 AM EST Sunrise
Wed -- 09:24 AM EST Moonset
Wed -- 09:56 AM EST 3.35 feet High Tide
Wed -- 04:19 PM EST Sunset
Wed -- 05:08 PM EST -0.05 feet Low Tide
Wed -- 06:00 PM EST Moonrise
Wed -- 10:33 PM EST 2.36 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Westerly, Pawcatuck River, Rhode Island, Tide feet
| 12 am |
| 1.8 |
| 1 am |
| 1.4 |
| 2 am |
| 1 |
| 3 am |
| 0.5 |
| 4 am |
| 0.3 |
| 5 am |
| 0.4 |
| 6 am |
| 1.1 |
| 7 am |
| 1.9 |
| 8 am |
| 2.6 |
| 9 am |
| 3.2 |
| 10 am |
| 3.3 |
| 11 am |
| 3.2 |
| 12 pm |
| 2.7 |
| 1 pm |
| 2.1 |
| 2 pm |
| 1.5 |
| 3 pm |
| 0.8 |
| 4 pm |
| 0.2 |
| 5 pm |
| -0 |
| 6 pm |
| 0.2 |
| 7 pm |
| 0.8 |
| 8 pm |
| 1.4 |
| 9 pm |
| 2 |
| 10 pm |
| 2.3 |
| 11 pm |
| 2.3 |
The Race
Click for Map
Wed -- 12:19 AM EST -0.00 knots Slack
Wed -- 03:10 AM EST -2.87 knots Max Ebb
Wed -- 06:15 AM EST 0.00 knots Slack
Wed -- 06:52 AM EST Sunrise
Wed -- 09:09 AM EST 2.88 knots Max Flood
Wed -- 09:25 AM EST Moonset
Wed -- 12:25 PM EST -0.00 knots Slack
Wed -- 03:34 PM EST -3.41 knots Max Ebb
Wed -- 04:20 PM EST Sunset
Wed -- 06:02 PM EST Moonrise
Wed -- 06:58 PM EST 0.00 knots Slack
Wed -- 09:44 PM EST 2.66 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Wed -- 12:19 AM EST -0.00 knots Slack
Wed -- 03:10 AM EST -2.87 knots Max Ebb
Wed -- 06:15 AM EST 0.00 knots Slack
Wed -- 06:52 AM EST Sunrise
Wed -- 09:09 AM EST 2.88 knots Max Flood
Wed -- 09:25 AM EST Moonset
Wed -- 12:25 PM EST -0.00 knots Slack
Wed -- 03:34 PM EST -3.41 knots Max Ebb
Wed -- 04:20 PM EST Sunset
Wed -- 06:02 PM EST Moonrise
Wed -- 06:58 PM EST 0.00 knots Slack
Wed -- 09:44 PM EST 2.66 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
The Race, Long Island Sound, New York Current, knots
| 12 am |
| 0.5 |
| 1 am |
| -1 |
| 2 am |
| -2.3 |
| 3 am |
| -2.9 |
| 4 am |
| -2.6 |
| 5 am |
| -1.7 |
| 6 am |
| -0.4 |
| 7 am |
| 1.1 |
| 8 am |
| 2.3 |
| 9 am |
| 2.9 |
| 10 am |
| 2.6 |
| 11 am |
| 1.8 |
| 12 pm |
| 0.6 |
| 1 pm |
| -0.9 |
| 2 pm |
| -2.4 |
| 3 pm |
| -3.3 |
| 4 pm |
| -3.3 |
| 5 pm |
| -2.6 |
| 6 pm |
| -1.4 |
| 7 pm |
| 0 |
| 8 pm |
| 1.5 |
| 9 pm |
| 2.5 |
| 10 pm |
| 2.6 |
| 11 pm |
| 2.2 |
Boston, MA,
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