Heavy Rain and Flood Threat Continues; Wintry Mix Extends from the Plains to the Northeast; and Snow in the West

Additional rainfall from the Southern Plains to the Ohio Valley will enhance the threat for additional flash flooding and main stem river flooding. Areas of accumulating snow and ice are expected across portions of the Central Plains to the Northeast. The Western U.S. will mainly be cold with the threat for heavy snow across parts of northern California, the Great Basin and the central Rockies.
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San Juan, PR Local Forecast Office

4NM NE San Juan PR

Marine Point Forecast

[NOTICE]
  • Overnight

    Showers Likely

    ENE 18kt
    < 1ft

    Low: 75 °F

  • Thursday

    Isolated Showers

    ENE 19kt
    < 1ft

    High: 81 °F

  • Thursday
    Night

    Showers Likely

    E 17kt
    < 1ft

    Low: 72 °F

  • Friday

    Showers Likely

    ENE 19kt
    < 1ft

    High: 82 °F

  • Friday
    Night

    Showers Likely

    E 15kt
    < 1ft

    Low: 74 °F

  • Saturday

    Scattered Showers

    ENE 16kt
    < 1ft

    High: 83 °F

  • Saturday
    Night

    Scattered Showers

    ENE 14kt
    < 1ft

    Low: 74 °F

  • Sunday

    Scattered Showers

    ENE 14kt
    < 1ft

    High: 81 °F

  • Sunday
    Night

    Scattered Showers

    ENE 11kt
    < 1ft

    Low: 74 °F


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 8:23 pm EST Feb 21, 2018
Forecast Valid: 11pm EST Feb 21, 2018-6pm EST Feb 28, 2018

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Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY AFTERNOON...

Overnight
ENE wind 16 to 18 kt, with gusts as high as 25 kt. Showers likely, mainly before 3am. Seas 1 ft or less.
Thursday
ENE wind 17 to 19 kt, with gusts as high as 25 kt. Isolated showers. Seas 1 ft or less.
Thursday Night
E wind around 17 kt. Showers likely. Seas 1 ft or less.
Friday
ENE wind 16 to 19 kt, with gusts as high as 25 kt. Showers likely, mainly before 11am. Seas 1 ft or less.
Friday Night
E wind 13 to 15 kt. Showers likely, mainly before 3am. Seas 1 ft or less.
Saturday
ENE wind 14 to 16 kt. Scattered showers. Seas 1 ft or less.
Saturday Night
ENE wind 11 to 14 kt. Scattered showers after 1am. Seas 1 ft or less.
Sunday
ENE wind 12 to 14 kt. Scattered showers. Seas 1 ft or less.
Sunday Night
ENE wind around 11 kt. Scattered showers. Seas 1 ft or less.

*Notices:

  1. 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.
  2. 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.
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ABOUT THIS FORECAST

Point Forecast: 18.45°N 65.99°W
Last Update: 8:23 pm EST Feb 21, 2018
Forecast Valid: 11pm EST Feb 21, 2018-6pm EST Feb 28, 2018
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