ANZ200-172100-
405 AM EDT Fri Jul 17 2026
.Synopsis for Massachusetts and Rhode Island coastal waters...
A weak low pres should move along the S coast this evening. A high
pres should then approach the waters Fri into Sat. A low pres moving
across nrn New England Sat night into early Sun should push its cold
front across the waters. A warm front should move N across the
waters Tue.
$$
ANZ254-172100- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 NM- 405 AM EDT Fri Jul 17 2026 TODAY NW winds around 10 kt, becoming SW this afternoon. Seas 2 to 3 ft. Wave Detail: N 2 ft at 4 seconds and S 2 ft at 5 seconds. TONIGHT S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 6 seconds and N 1 foot at 5 seconds. Areas of smoke. SAT SW winds 10 to 15 kt, becoming S 15 to 20 kt in the afternoon. Gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: S 3 ft at 4 seconds and N 1 foot at 5 seconds. Areas of smoke. SAT NIGHT SW winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to 6 ft. Wave Detail: SE 6 ft at 7 seconds and W 2 ft at 5 seconds. Showers with a chance of tstms. SUN W winds 15 to 20 kt, becoming NW 10 to 15 kt in the afternoon. Gusts up to 25 kt. Seas 4 to 6 ft. Wave Detail: SW 6 ft at 6 seconds and SE 3 ft at 8 seconds. Showers likely in the morning. SUN NIGHT NW winds 5 to 10 kt. Seas 3 to 5 ft. Wave Detail: S 4 ft at 8 seconds and NW 1 foot at 3 seconds. MON THROUGH TUE S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. TUE NIGHT S winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to 6 ft. Showers likely. Winds and seas higher in and near tstms. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. $$
ANZ254-172100- Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 NM- 405 AM EDT Fri Jul 17 2026 TODAY NW winds around 10 kt, becoming SW this afternoon. Seas 2 to 3 ft. Wave Detail: N 2 ft at 4 seconds and S 2 ft at 5 seconds. TONIGHT S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 6 seconds and N 1 foot at 5 seconds. Areas of smoke. SAT SW winds 10 to 15 kt, becoming S 15 to 20 kt in the afternoon. Gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: S 3 ft at 4 seconds and N 1 foot at 5 seconds. Areas of smoke. SAT NIGHT SW winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to 6 ft. Wave Detail: SE 6 ft at 7 seconds and W 2 ft at 5 seconds. Showers with a chance of tstms. SUN W winds 15 to 20 kt, becoming NW 10 to 15 kt in the afternoon. Gusts up to 25 kt. Seas 4 to 6 ft. Wave Detail: SW 6 ft at 6 seconds and SE 3 ft at 8 seconds. Showers likely in the morning. SUN NIGHT NW winds 5 to 10 kt. Seas 3 to 5 ft. Wave Detail: S 4 ft at 8 seconds and NW 1 foot at 3 seconds. MON THROUGH TUE S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. TUE NIGHT S winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to 6 ft. Showers likely. Winds and seas higher in and near tstms. 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. $$