Buzzards Bay Marine Forecast
| This Afternoon...S Winds Around 10 Kt With Gusts Up To 20 Kt. Seas Around 2 Ft. Wave Detail: Sw 2 Ft At 4 Seconds And S 1 Foot At 7 Seconds. |
| Tonight...Sw Winds 5 To 10 Kt. Seas Around 2 Ft. Wave Detail: Sw 2 Ft At 4 Seconds And Se 1 Foot At 7 Seconds. Patchy Fog. Vsby 1 To 3 Nm. |
| Sat...W Winds Around 5 Kt, Becoming S In The Afternoon. Seas 1 Foot Or Less. Wave Detail: Se 1 Foot At 5 Seconds And Se 1 Foot At 11 Seconds. Patchy Fog. A Chance Of Showers In The Afternoon. Vsby 1 To 3 Nm. |
| Sat Night...S Winds Around 5 Kt. Seas 1 Foot Or Less. Wave Detail: E 1 Foot At 2 Seconds And S 1 Foot At 6 Seconds. Patchy Fog. Vsby 1 Nm Or Less. |
| Sun...Ne Winds Around 5 Kt, Becoming Se In The Afternoon. Seas Around 2 Ft. Wave Detail: Ne 1 Foot At 5 Seconds And S 1 Foot At 6 Seconds. Patchy Fog In The Morning With Vsby 1 Nm Or Less. |
| Sun Night...S Winds 5 To 10 Kt, Becoming W After Midnight. Seas Around 2 Ft. Wave Detail: E 1 Foot At 3 Seconds And Sw 1 Foot At 6 Seconds. |
| Mon Through Tue...Sw Winds 10 To 15 Kt With Gusts Up To 20 Kt. Seas 2 To 3 Ft. |
| Tue Night...Sw Winds 10 To 15 Kt With Gusts Up To 20 Kt. Seas 2 To 3 Ft. A Chance Of Showers. 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. |
| Area Forecast Discussion National Weather Service Boston/Norton MA 137pm EDT Fri Jun 26 2026 .WHAT HAS CHANGED... Widely scattered thunderstorms remain possible this evening generally in the 5 pm to midnight time frame. Greatest risk for any thunderstorms will be across northeast MA in the 6 to 10 pm window. .KEY MESSAGES... - Widely scattered thunderstorms possible between 5pm & midnight with the greatest risk in northeast MA between 6 and 10 pm. Mainly dry & seasonable Sat outside a few brief spot showers. - Warm and humid midweek, along with a risk of showers towards the second half of next week. KEY MESSAGE 1...Widely scattered thunderstorms possible between 5 and midnight this evening with the greatest risk in northeast MA between 6 and 10 pm. Mainly dry & seasonable Sat outside a few brief spot showers. The main forecast concern continues to revolve around the potential for widely scattered thunderstorms this evening. The earlier showers this morning have pretty much departed the region. Otherwise...we were beginning to some breaks in the clouds and some partial sunshine trying to overspread the region this afternoon. This should result in the development of some instability...surface capes should reach between 1000 and 1500 J/KG across most of the region. Jet dynamics are quite favorable and the Storm Prediction Center meso-analysis indicates effective bulk shear increasing to over 50 knots this evening. When these two ingredients overlap each other conditions are often favorable for thunderstorm development and severe weather. However...the big limiting factors in this case are the subsidence behind the round of showers that crossed the region earlier this morning and an abundance of mid level dry air. While mid level dry air can also be favorable for convection...too much of it can cut off developing updrafts. This is likely the main reason that a lot of the high resolution guidance is rather limited in its areal coverage of potential thunderstorm development. So in a nutshell...a few thunderstorms are possible in the 5 pm to midnight time frame this evening. Greatest risk though will be between 6 and 10 pm near the NH border and particularly in northeast MA. The reason for that is that there is bit better mid level moisture in that region. This is also indicated by much of our machine learning guidance etc. So to sum up...a few thunderstorms will be possible anywhere across southern New England but the greatest risk will be across northeast MA and near the NH border. Cloud to ground lightning is the main risk from any thunderstorms...but localized strong/damaging wind gusts are certainly possible. Confidence on thunderstorm development will increase across northeast MA if we see activity pushing into southeast NH...so this will be a nowcast type of forecast this evening. Otherwise...generally dry weather after midnight into Saturday outside a few brief spot showers with the greatest risk near the south coast. Partial sunshine on Sat should yield highs mainly in the upper 70s to the lower 80s...although might be a few degrees cooler along portions of the immediate eastern MA coast. KEY MESSAGE 2...Warm and humid midweek, along with a risk of showers towards the second half of next week. As noted in the previous message, the risk for hazardous temperatures over southern New England has trended up a bit for midweek next week. Humidity ticks up as a warm and more humid airmass moves in. A shortwave or two may "roll" along the eastern side of the upper level ridge, which may bring some unsettled weather for midweek. Location-specific and refined timing details are not yet known, though latest guidance is pointing towards sometime between Wednesday and Thursday. Marine Forecaster Confidence Levels... Low - less than 30 percent. Moderate - 30 to 60 percent. High - greater than 60 percent. Tonight through Saturday night...High confidence on winds/seas. Moderate confidence on thunderstorm risk in our northeast MA waters this evening. A weak pressure gradient will keep winds/seas below small craft advisory thresholds through Saturday night. The main concern will be for scattered thunderstorms potentially impact our northeast MA adjacent coastal waters this evening. Dangerous cloud to ground lightning and locally strong wind gusts would be possible in this region. The greatest risk in the 6 to 10 pm time frame. Otherwise...areas of fog patches may impact the waters at times mainly during the overnight and early morning hours. Outlook /Sunday through Wednesday/... Sunday: Winds less than 25 kt. Seas locally approaching 5 ft. Sunday Night through Monday Night: Winds less than 25 kt. Tuesday: Winds less than 25 kt. Slight chance of rain showers. NOAA Boston MA Office: Watches - Warnings - Advisories CT...None. MA...None. RI...None. Marine None. |
Boston MA Radar
Northeast Radar
East Coast Satellite