Severe Thunderstorm and Flash Flood Threats Continue into the Weekend

Severe thunderstorms are expected from the southern Plains to the Midwest through Friday night. Severe storm hazards may include large hail, severe winds, and tornadoes, some of which may be strong. There will be another chance for severe thunderstorms on Saturday for portions of Texas, the Lower Mississippi Valley, and the Ohio Valley. Storms could result in locally heavy rain and flash flooding. Read More >

Hazardous Weather Conditions

Small Craft Advisory until March 9, 06:00 AM EDT

For More Weather Information:

San Juan, PR Local Forecast Office

4NM NW San Juan PR

Marine Point Forecast

[NOTICE]

Tonight
Low: 77 °F
E 13kt
6ft

Small Craft Advisory
Saturday
High: 81 °F
E 17kt
6ft

Small Craft Advisory
Saturday Night
Low: 77 °F
E 12kt
5-6ft

Small Craft Advisory
Sunday
High: 81 °F
E 17kt
5ft

Small Craft Advisory
Sunday Night
Low: 77 °F
E 13kt
5ft

Small Craft Advisory
Monday
High: 81 °F
E 16kt
5ft
Monday Night
Low: 77 °F
E 11kt
5ft
Tuesday
High: 81 °F
E 15kt
5ft
Tuesday Night
Low: 77 °F
E 12kt
5ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 7:35 pm EST Mar 6, 2026
Forecast Valid: 9pm EST Mar 6, 2026-6pm EDT Mar 13, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE SUNDAY NIGHT...

Tonight

E wind 11 to 13 kt. Scattered showers and thunderstorms, then showers likely and possibly a thunderstorm after 11pm. Seas around 6 ft.

Saturday

E wind 13 to 17 kt, with gusts as high as 23 kt. Showers likely, mainly before 11am. Seas around 6 ft.

Saturday Night

E wind around 12 kt. Showers likely, mainly after 5am. Seas 5 to 6 ft.

Sunday

E wind 11 to 17 kt, with gusts as high as 23 kt. Showers likely, mainly before 8am. Seas around 5 ft.

Sunday Night

E wind 11 to 13 kt. Scattered showers. Seas around 5 ft.

Monday

E wind 12 to 16 kt, with gusts as high as 22 kt. Showers likely, mainly before 11am. Seas around 5 ft.

Monday Night

E wind around 11 kt. Showers likely. Seas around 5 ft.

Tuesday

E wind 11 to 15 kt. Scattered showers. Seas around 5 ft.

Tuesday Night

E wind 9 to 12 kt. Showers likely. Seas around 5 ft.

Winds and seas higher in and near thunderstorms.

*Notices:

This forecast is for a single location. For safety concerns, mariners should be aware of the weather over a larger area. Forecast information for a larger area can be found within the zone forecast and the NDFD graphics.
The forecast conditions at a particular point may not exceed the criteria of a Small Craft Advisory, Gale, Storm etc. These watches/warnings/advisories are issued for the entire zone in which the point resides and mariners should act accordingly.