ANZ200-190300-
1005 AM EDT Sat Apr 18 2026
.Synopsis for Massachusetts and Rhode Island coastal waters...
A strong cold front moves over the waters on Sun. High pres returns
over the waters early next week then a weak low pressure crosses the
waters Wednesday.
$$
ANZ254-190300- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 NM- 1005 AM EDT Sat Apr 18 2026 THIS AFTERNOON NE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. Wave Detail: N 3 ft at 4 seconds and S 2 ft at 7 seconds. Areas of fog. Vsby 1 to 3 NM. TONIGHT E winds 5 to 10 kt, becoming S after midnight. Seas 3 to 5 ft. Wave Detail: E 5 ft at 7 seconds and S 2 ft at 7 seconds. Patchy fog. Vsby 1 NM or less, increasing to 1 to 3 NM after midnight. SUN S winds 10 to 15 kt, becoming SW 15 to 20 kt in the afternoon. Seas 3 to 5 ft. Wave Detail: E 5 ft at 8 seconds and SW 3 ft at 5 seconds. Patchy fog. Rain likely in the afternoon. Vsby 1 NM or less. SUN NIGHT NW winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: E 4 ft at 7 seconds and NW 3 ft at 4 seconds. Rain, mainly in the evening. Patchy fog in the evening. MON NW winds 10 to 15 kt, becoming W 5 to 10 kt in the afternoon. Seas 2 to 4 ft. Wave Detail: NW 2 ft at 5 seconds and SE 2 ft at 7 seconds. MON NIGHT W winds 5 to 10 kt, becoming N 10 to 15 kt with gusts up to 20 kt after midnight. Seas 2 to 3 ft. Wave Detail: N 2 ft at 4 seconds and SE 2 ft at 7 seconds. TUE THROUGH WED NIGHT W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$
ANZ254-190300- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 NM- 1005 AM EDT Sat Apr 18 2026 THIS AFTERNOON NE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. Wave Detail: N 3 ft at 4 seconds and S 2 ft at 7 seconds. Areas of fog. Vsby 1 to 3 NM. TONIGHT E winds 5 to 10 kt, becoming S after midnight. Seas 3 to 5 ft. Wave Detail: E 5 ft at 7 seconds and S 2 ft at 7 seconds. Patchy fog. Vsby 1 NM or less, increasing to 1 to 3 NM after midnight. SUN S winds 10 to 15 kt, becoming SW 15 to 20 kt in the afternoon. Seas 3 to 5 ft. Wave Detail: E 5 ft at 8 seconds and SW 3 ft at 5 seconds. Patchy fog. Rain likely in the afternoon. Vsby 1 NM or less. SUN NIGHT NW winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: E 4 ft at 7 seconds and NW 3 ft at 4 seconds. Rain, mainly in the evening. Patchy fog in the evening. MON NW winds 10 to 15 kt, becoming W 5 to 10 kt in the afternoon. Seas 2 to 4 ft. Wave Detail: NW 2 ft at 5 seconds and SE 2 ft at 7 seconds. MON NIGHT W winds 5 to 10 kt, becoming N 10 to 15 kt with gusts up to 20 kt after midnight. Seas 2 to 3 ft. Wave Detail: N 2 ft at 4 seconds and SE 2 ft at 7 seconds. TUE THROUGH WED NIGHT W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 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. $$