Areas of Excessive Rainfall; Watching for Tropical Cyclone Development in the Atlantic
Heavy to excessive rainfall Wednesday may bring areas of flash and urban flooding over portions of the Ohio and Tennessee Valleys. In Arizona and New Mexico, heavy to excessive rainfall from monsoon thunderstorms may bring isolated flash and urban flooding Thursday into Saturday. Two tropical waves in the Atlantic are being monitored for tropical cyclone formation within the next few days. Read More >
| NWS Forecast for: Coastal Waters of Northern Puerto Rico out 10 NM (AMZ712) Issued by: National Weather Service San Juan, PR Last Update: 400 PM AST Tue Sep 23 2025 |  |
Tonight: East winds 10 to 15 knots with gusts up to 25 knots. Seas 4 to 5 feet. Wave detail: northeast 4 feet at 8 seconds and northeast 1 foot at 14 seconds. Isolated showers until early morning. Isolated thunderstorms after midnight. Scattered showers late. Wednesday: East winds 10 to 15 knots with gusts up to 25 knots. Seas 4 to 5 feet. Wave detail: northeast 4 feet at 7 seconds and north 2 feet at 13 seconds. Numerous showers in the afternoon. Wednesday Night: Southeast winds 10 to 15 knots with gusts up to 25 knots. Seas around 5 feet. Wave detail: east 4 feet at 7 seconds and north 2 feet at 12 seconds. Showers. Thursday: East winds 10 to 15 knots with gusts up to 20 knots, diminishing to 5 to 10 knots in the afternoon. Seas 4 to 5 feet. Wave detail: east 4 feet at 8 seconds and north 2 feet at 11 seconds. Numerous showers. Thursday Night: Southeast winds 5 to 10 knots. Seas 3 to 4 feet. Wave detail: east 3 feet at 7 seconds and north 2 feet at 10 seconds. Scattered showers. Friday: Southeast 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 7 seconds and north 2 feet at 10 seconds. Numerous showers in the afternoon. Friday Night: Southeast winds 5 to 10 knots. Seas around 3 feet. Saturday: Southeast winds 5 to 10 knots. Seas around 3 feet. Showers in the afternoon. Saturday Night: Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Sunday: Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Showers in the afternoon. Sunday Night: Southeast winds 5 to 10 knots. Seas 2 to 3 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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