Hazardous marine condition(s):
Small Craft Advisory
ANZ200-191200-
705 PM EDT Thu Jun 18 2026
.Synopsis for Massachusetts and Rhode Island coastal waters...
Gale and Small Craft conditions with a chance of thunderstorms into
the evening which could lead to locally higher winds and seas.
Breezy conditions and elevated seas continue Fri and Sat across the
srn coastal waters. Another coastal system approaches from the W on
Monday.
$$
ANZ254-191200- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 NM- 705 PM EDT Thu Jun 18 2026 SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY EVENING TONIGHT SW winds 20 to 25 kt with gusts up to 35 kt, diminishing to around 15 kt with gusts up to 25 kt after midnight. Seas 5 to 7 ft. Wave Detail: SW 7 ft at 7 seconds and SW 3 ft at 4 seconds. FRI W winds 10 to 15 kt, becoming SW 15 to 20 kt in the afternoon. Gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: S 5 ft at 8 seconds and W 3 ft at 5 seconds. FRI NIGHT W winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. Wave Detail: S 5 ft at 8 seconds and W 3 ft at 4 seconds. SAT W winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. Wave Detail: W 4 ft at 5 seconds and S 4 ft at 8 seconds. SAT NIGHT W winds 10 to 15 kt. Gusts up to 25 kt in the evening. Seas 4 to 6 ft. Wave Detail: S 4 ft at 8 seconds and W 2 ft at 4 seconds. SUN AND SUN NIGHT SW winds 5 to 10 kt. Seas 2 to 4 ft. Wave Detail: S 3 ft at 8 seconds and NW 2 ft at 4 seconds. MON S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of showers. MON NIGHT S winds 20 to 25 kt with gusts up to 30 kt. Seas 5 to 7 ft. Showers. TUE SW winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to 6 ft. Showers likely. TUE NIGHT W winds 10 to 15 kt. Seas 3 to 5 ft. A chance of showers. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$
ANZ254-191200- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 NM- 705 PM EDT Thu Jun 18 2026 SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY EVENING TONIGHT SW winds 20 to 25 kt with gusts up to 35 kt, diminishing to around 15 kt with gusts up to 25 kt after midnight. Seas 5 to 7 ft. Wave Detail: SW 7 ft at 7 seconds and SW 3 ft at 4 seconds. FRI W winds 10 to 15 kt, becoming SW 15 to 20 kt in the afternoon. Gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: S 5 ft at 8 seconds and W 3 ft at 5 seconds. FRI NIGHT W winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. Wave Detail: S 5 ft at 8 seconds and W 3 ft at 4 seconds. SAT W winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. Wave Detail: W 4 ft at 5 seconds and S 4 ft at 8 seconds. SAT NIGHT W winds 10 to 15 kt. Gusts up to 25 kt in the evening. Seas 4 to 6 ft. Wave Detail: S 4 ft at 8 seconds and W 2 ft at 4 seconds. SUN AND SUN NIGHT SW winds 5 to 10 kt. Seas 2 to 4 ft. Wave Detail: S 3 ft at 8 seconds and NW 2 ft at 4 seconds. MON S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of showers. MON NIGHT S winds 20 to 25 kt with gusts up to 30 kt. Seas 5 to 7 ft. Showers. TUE SW winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to 6 ft. Showers likely. TUE NIGHT W winds 10 to 15 kt. Seas 3 to 5 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. $$