Hazardous marine condition(s):
Small Craft Advisory
ANZ200-102100-
404 AM EDT Thu Sep 10 2026
.Synopsis for Massachusetts and Rhode Island coastal waters...
A cold front crosses the region this morning with gusty WSW winds.
High pres then builds behind this front Fri into Sat. This high will
shift east of the waters by Sun as a warm front crosses the region.
A cold front quickly follows Sun night with high pres nosing in from
the west by Mon.
$$
ANZ237-102100- Block Island Sound- 404 AM EDT Thu Sep 10 2026 SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING TODAY SW winds 15 to 20 kt, diminishing to 10 to 15 kt this afternoon. Gusts up to 30 kt. Seas 4 to 6 ft. Wave Detail: SW 5 ft at 6 seconds and SE 2 ft at 9 seconds. A chance of showers this morning. TONIGHT W winds 10 to 15 kt, becoming NW 5 to 10 kt after midnight. Gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: SW 4 ft at 7 seconds and N 3 ft at 3 seconds. FRI N winds 5 to 10 kt with gusts up to 20 kt, becoming W in the afternoon. Seas 2 to 3 ft. Wave Detail: W 3 ft at 7 seconds and N 2 ft at 3 seconds. FRI NIGHT W winds 5 to 10 kt, becoming N after midnight. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 6 seconds and N 1 foot at 2 seconds. SAT NE winds around 5 kt, becoming SE in the afternoon. Seas around 2 ft. Wave Detail: S 2 ft at 7 seconds and N 1 foot at 2 seconds. SAT NIGHT S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 2 ft at 6 seconds and SE 1 foot at 3 seconds. Scattered showers after midnight. SUN S winds 5 to 10 kt. Seas around 2 ft. Numerous showers. SUN NIGHT THROUGH MON NIGHT NE winds 5 to 10 kt. Seas 2 to 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$
ANZ237-102100- Block Island Sound- 404 AM EDT Thu Sep 10 2026 SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING TODAY SW winds 15 to 20 kt, diminishing to 10 to 15 kt this afternoon. Gusts up to 30 kt. Seas 4 to 6 ft. Wave Detail: SW 5 ft at 6 seconds and SE 2 ft at 9 seconds. A chance of showers this morning. TONIGHT W winds 10 to 15 kt, becoming NW 5 to 10 kt after midnight. Gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: SW 4 ft at 7 seconds and N 3 ft at 3 seconds. FRI N winds 5 to 10 kt with gusts up to 20 kt, becoming W in the afternoon. Seas 2 to 3 ft. Wave Detail: W 3 ft at 7 seconds and N 2 ft at 3 seconds. FRI NIGHT W winds 5 to 10 kt, becoming N after midnight. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 6 seconds and N 1 foot at 2 seconds. SAT NE winds around 5 kt, becoming SE in the afternoon. Seas around 2 ft. Wave Detail: S 2 ft at 7 seconds and N 1 foot at 2 seconds. SAT NIGHT S winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 2 ft at 6 seconds and SE 1 foot at 3 seconds. Scattered showers after midnight. SUN S winds 5 to 10 kt. Seas around 2 ft. Numerous showers. SUN NIGHT THROUGH MON NIGHT NE winds 5 to 10 kt. Seas 2 to 3 ft. 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. $$