National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Severe Thunderstorms in the Southeast U.S. Saturday; Flash Flooding Threat for the Northern Gulf Coast

Isolated to scattered severe thunderstorms appear possible across portions of the Southeast and Carolinas on Saturday where a Slight Risk (Level 2 of 5) has been issued. A Slight Risk Excessive Rainfall Outlook (Level 2 of 4) has been issued for part of the northern Gulf Coast Saturday due to the threat of flash, urban, and riverine flooding. Read More >

Hazardous Weather Conditions

Current conditions at

San Juan, Luis Munoz Marin International Airport (TJSJ)

Lat: 18.45°NLon: 66°WElev: 10ft.

A Few Clouds

82°F

28°C

Humidity 82%
Wind Speed Calm
Barometer 29.97 in (1014.7 mb)
Dewpoint 76°F (24°C)
Visibility 10.00 mi
Heat Index89°F (32°C)
Last update 19 May 2:56 am AST
Extended Forecast for

Ceiba PR

Heat Advisory May 19, 11:00am until May 19, 05:00pm
Click here for hazard details and duration
Heat Advisory

  • Overnight

    Overnight: Scattered showers. Partly cloudy, with a low around 80. East wind around 5 mph. Chance of precipitation is 40%.

    Low: 80 °F

    Scattered
    Showers

  • Sunday

    Sunday: Scattered showers before noon, then scattered showers and thunderstorms between noon and 3pm, then showers likely and possibly a thunderstorm after 3pm. Partly sunny, with a high near 88. Heat index values as high as 102. East southeast wind 8 to 11 mph. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 88 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: Scattered showers. Mostly cloudy, with a low around 80. East wind 7 to 9 mph. Chance of precipitation is 40%.

    Low: 80 °F

    Scattered
    Showers

  • Monday

    Monday: Scattered showers. Partly sunny, with a high near 88. Heat index values as high as 102. East southeast wind 10 to 13 mph. Chance of precipitation is 40%.

    High: 88 °F

    Scattered
    Showers

  • Monday Night

    Monday Night: Scattered showers. Partly cloudy, with a low around 81. East southeast wind 9 to 11 mph. Chance of precipitation is 30%.

    Low: 81 °F

    Scattered
    Showers

  • Tuesday

    Tuesday: Scattered showers. Mostly sunny, with a high near 88. East southeast wind around 14 mph. Chance of precipitation is 30%.

    High: 88 °F

    Scattered
    Showers

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 81. East wind around 10 mph.

    Low: 81 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Showers likely, mainly after noon. Partly sunny, with a high near 86. East southeast wind 9 to 13 mph. Chance of precipitation is 60%.

    High: 86 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers likely. Mostly cloudy, with a low around 80. East wind 6 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.

    Low: 80 °F

    Showers
    Likely

Detailed Forecast

Overnight
Scattered showers. Partly cloudy, with a low around 80. East wind around 5 mph. Chance of precipitation is 40%.
Sunday
Scattered showers before noon, then scattered showers and thunderstorms between noon and 3pm, then showers likely and possibly a thunderstorm after 3pm. Partly sunny, with a high near 88. Heat index values as high as 102. East southeast wind 8 to 11 mph. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.
Sunday Night
Scattered showers. Mostly cloudy, with a low around 80. East wind 7 to 9 mph. Chance of precipitation is 40%.
Monday
Scattered showers. Partly sunny, with a high near 88. Heat index values as high as 102. East southeast wind 10 to 13 mph. Chance of precipitation is 40%.
Monday Night
Scattered showers. Partly cloudy, with a low around 81. East southeast wind 9 to 11 mph. Chance of precipitation is 30%.
Tuesday
Scattered showers. Mostly sunny, with a high near 88. East southeast wind around 14 mph. Chance of precipitation is 30%.
Tuesday Night
Partly cloudy, with a low around 81. East wind around 10 mph.
Wednesday
Showers likely, mainly after noon. Partly sunny, with a high near 86. East southeast wind 9 to 13 mph. Chance of precipitation is 60%.
Wednesday Night
Showers likely. Mostly cloudy, with a low around 80. East wind 6 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
Thursday
Showers likely. Mostly cloudy, with a high near 87. Chance of precipitation is 60%.
Thursday Night
Showers likely. Mostly cloudy, with a low around 80. Chance of precipitation is 60%.
Friday
Showers likely. Mostly cloudy, with a high near 88. Chance of precipitation is 60%.
Friday Night
Showers likely. Mostly cloudy, with a low around 81. Chance of precipitation is 60%.
Saturday
Scattered showers. Mostly cloudy, with a high near 87. Chance of precipitation is 50%.
Click Map For Forecast
Disclaimer
Map Legend

ABOUT THIS FORECAST

 
Point Forecast:
Ceiba PR
 18.27°N 65.65°W (Elev. 49 ft)
Last Update:
4:08 pm AST May 18, 2024
Forecast Valid:
3am AST May 19, 2024-6pm AST May 25, 2024
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation