Severe Thunderstorms in the Ohio and Tennessee Valleys; Flash Flooding Possible in the Southwest

Scattered damaging winds, isolated severe hail, and a brief tornado or two are possible from the Upper Ohio to Tennessee Valleys during the late afternoon and evening. Across the Southwest, monsoonal moisture will continue to bring heavy rain and a threat for isolated to scattered flash flooding through Saturday. Read More >

Hazardous Weather Conditions

Last Update: 420 AM AST Fri Sep 5 2025

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San Juan, PR Local Forecast Office

51NM N San Juan PR

Marine Zone Forecast


Today
East winds 10 to 15 knots. Gusts up to 25 knots late this morning and afternoon. Seas 3 to 4 feet. Wave detail: east 3 feet at 8 seconds and southeast 1 foot at 4 seconds. Isolated thunderstorms this morning. Scattered showers.
Tonight
East winds 10 to 15 knots with gusts up to 25 knots. Seas around 4 feet. Wave detail: east 4 feet at 8 seconds and east 3 feet at 5 seconds. Scattered showers in the evening.
Saturday
East winds 10 to 15 knots with gusts up to 25 knots. Seas 3 to 4 feet. Wave detail: east 4 feet at 8 seconds and east 3 feet at 5 seconds. Scattered showers in the morning.
Saturday Night
East winds 10 to 15 knots with gusts up to 25 knots. Seas 3 to 4 feet. Wave detail: east 4 feet at 8 seconds and southeast 1 foot at 5 seconds. Scattered showers.
Sunday
East winds 10 to 15 knots with gusts up to 25 knots. Seas 3 to 4 feet. Wave detail: east 4 feet at 7 seconds. Scattered showers in the morning.
Sunday Night
East winds 10 to 15 knots with gusts up to 25 knots. Seas 3 to 4 feet. Wave detail: east 4 feet at 7 seconds. Scattered showers.
Monday
East winds 10 to 15 knots. Seas around 4 feet. Scattered showers in the morning.
Monday Night
East winds 10 to 15 knots. Seas 4 to 5 feet. Scattered showers.
Tuesday
East winds 10 to 15 knots. Seas around 4 feet. Scattered showers in the morning.
Tuesday Night
East winds 10 to 15 knots. Seas 4 to 5 feet. Scattered showers.

winds and seas higher in and near thunderstorms.




Winds and seas higher in and near thunderstorms.
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420 AM AST Fri Sep 5 2025
 
 

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