An Arctic Outbreak; Heavy Lake Effect Snow in the Great Lakes Region

An Arctic outbreak of cold air will expand south and east from the northern Plains through the Midwest and persist into next week. Dangerously cold wind chills are expected in the Northern Plains and Upper Midwest. Heavy lake-effect snow bands and snow showers have developed downwind of the Great Lakes, and will continue into next week. Travel could be very difficult to impossible. Read More >

Hazardous Weather Conditions

For More Weather Information:

San Juan, PR Local Forecast Office

4NM NW San Juan PR

Marine Point Forecast

[NOTICE]
    • Sunday

      Sunday:ESE wind 5 to 14 kt. Scattered showers before 11am, then scattered showers and thunderstorms between 11am and 2pm, then isolated showers after 2pm.   Seas 3 to 4 ft.

      High: 87 °F

      ESE 14kt
      3-4ft

    • Sunday Night

      Sunday Night:ESE wind around 7 kt. Scattered showers, mainly after 2am.   Seas around 4 ft.

      Low: 77 °F

      ESE 7kt
      4ft

    • Monday

      Monday:E wind 7 to 12 kt. Scattered showers, then showers likely and possibly a thunderstorm after 11am.   Seas 3 to 4 ft.

      High: 86 °F

      E 12kt
      3-4ft

    • Monday Night

      Monday Night:E wind 6 to 8 kt. Showers likely, mainly after 11pm.   Seas around 3 ft.

      Low: 77 °F

      E 8kt
      3ft

    • Tuesday

      Tuesday:E wind 9 to 12 kt. Scattered showers, mainly before 11am.   Seas 3 to 4 ft.

      High: 86 °F

      E 12kt
      3-4ft

    • Tuesday Night

      Tuesday Night:ESE wind 6 to 8 kt. Isolated showers.   Seas around 4 ft.

      Low: 77 °F

      ESE 8kt
      4ft

    • Wednesday

      Wednesday:E wind 6 to 12 kt. Scattered showers after 11am.   Seas around 4 ft.

      High: 86 °F

      E 12kt
      4ft

    • Wednesday Night

      Wednesday Night:E wind 7 to 9 kt. Scattered showers.   Seas around 4 ft.

      Low: 76 °F

      E 9kt
      4ft

    • Thursday

      Thursday:E wind 7 to 12 kt. Scattered showers.   Seas around 4 ft.

      High: 85 °F

      E 12kt
      4ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 6:01 pm EST Nov 30, 2024
Forecast Valid: 1am EST Dec 1, 2024-6pm EST Dec 7, 2024

View Nearby Observations

Detailed Forecast


Sunday
ESE wind 5 to 14 kt. Scattered showers before 11am, then scattered showers and thunderstorms between 11am and 2pm, then isolated showers after 2pm. Seas 3 to 4 ft.
Sunday Night
ESE wind around 7 kt. Scattered showers, mainly after 2am. Seas around 4 ft.
Monday
E wind 7 to 12 kt. Scattered showers, then showers likely and possibly a thunderstorm after 11am. Seas 3 to 4 ft.
Monday Night
E wind 6 to 8 kt. Showers likely, mainly after 11pm. Seas around 3 ft.
Tuesday
E wind 9 to 12 kt. Scattered showers, mainly before 11am. Seas 3 to 4 ft.
Tuesday Night
ESE wind 6 to 8 kt. Isolated showers. Seas around 4 ft.
Wednesday
E wind 6 to 12 kt. Scattered showers after 11am. Seas around 4 ft.
Wednesday Night
E wind 7 to 9 kt. Scattered showers. Seas around 4 ft.
Thursday
E wind 7 to 12 kt. Scattered showers. Seas around 4 ft.

*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.
  Select Another Point

ABOUT THIS FORECAST

Point Forecast: 18.46°N 66.13°W
Last Update: 6:01 pm EST Nov 30, 2024
Forecast Valid: 1am EST Dec 1, 2024-6pm EST Dec 7, 2024
  Forecast Discussion
  Get as KML Get as XML

RADAR & SATELLITE IMAGES

 Link to Satellite Data