Coastal Storm Impacting the Mid-Atlantic; Heavy Rain and Below Average Temperatures Over the Plains

A coastal storm will bring widespread rain, gusty winds, shallow coastal flooding, rip currents, large surf and possible areal flooding over the Mid-Atlantic region into Wednesday. Heavy rains and thunderstorms, some severe, persist across the Plains. Above average temperatures expected across much of the CONUS, except over the Plains. Read More >

Coastal Waters Forecast for Coastal Waters of Northern Puerto Rico out 10 NM (AMZ712) (Text-Only)
NWS Forecast for: Coastal Waters of Northern Puerto Rico out 10 NM (AMZ712)
Issued by: National Weather Service San Juan, PR
Last Update: 422 PM AST Tue Sep 16 2025




Tonight: East winds 10 to 15 knots with gusts up to 25 knots. Seas around 4 feet. Wave detail: northeast 4 feet at 8 seconds and north 1 foot at 9 seconds. Isolated showers early this evening, then scattered showers late this evening and overnight. Isolated thunderstorms after midnight.

Wednesday: East winds 5 to 10 knots. Seas around 4 feet. Wave detail: northeast 4 feet at 8 seconds and northwest 1 foot at 11 seconds. Numerous showers.

Wednesday Night: East winds 10 to 15 knots with gusts up to 20 knots. Seas 4 to 5 feet. Wave detail: northeast 4 feet at 8 seconds and northwest 1 foot at 10 seconds. Scattered showers in the evening, then numerous showers after midnight.

Thursday: East winds 5 to 10 knots, increasing to 10 to 15 knots with gusts up to 20 knots in the afternoon. Seas 4 to 5 feet. Wave detail: northeast 4 feet at 8 seconds and northwest 1 foot at 8 seconds. Numerous showers.

Thursday Night: East winds 5 to 10 knots. Seas 3 to 4 feet. Wave detail: east 4 feet at 8 seconds and northwest 1 foot at 8 seconds. Numerous showers.

Friday: East winds 5 to 10 knots, increasing to 10 to 15 knots with gusts up to 20 knots in the afternoon. Seas 3 to 4 feet. Wave detail: east 3 feet at 8 seconds and north 1 foot at 8 seconds. Scattered showers in the afternoon.

Friday Night: East winds 5 to 10 knots. Seas 3 to 4 feet. Scattered showers.

Saturday: East winds 5 to 10 knots, becoming northeast 10 to 15 knots in the afternoon. Seas 3 to 4 feet.

Saturday Night: East winds 5 to 10 knots. Seas 3 to 5 feet.

Sunday: Southeast winds around 5 knots, becoming northeast in the afternoon. Seas 4 to 5 feet.

Sunday Night: East winds around 5 knots, becoming southeast after midnight. Seas around 4 feet.

winds and seas higher in and near thunderstorms.







Zone Forecast: Coastal Waters of Northern Puerto Rico out 10 NM (AMZ712)

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