Widespread Summer Heat; Multiple Spots For Severe Weather

A large ridge of high pressure continues to deliver summer heat w/ humidity in several sections of the country. Excessive heat warnings and heat advisories are in effect across the Desert Southwest, south-central Plains, Mid to Lower Mississippi Valley and a small part of the Mid-Atlantic. Meanwhile, severe thunderstorms are possible from the Mid-Atlantic to the Ohio Valley and central Plains.
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Last Update: 420 PM AST Tue Aug 20 2019

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San Juan, PR Local Forecast Office

12NM SW Mayaguez PR

Marine Zone Forecast


Tonight
East winds 5 to 10 knots. Seas 2 feet or less. Dominant period 10 seconds. Isolated showers.
Wednesday
East winds 5 to 10 knots. Seas 2 feet or less. Dominant period 10 seconds.
Wednesday Night
East winds 10 to 15 knots. Seas 1 to 3 feet. Dominant period 10 seconds. Isolated showers.
Thursday
East winds 10 to 15 knots. Seas 1 to 3 feet. Dominant period 8 seconds. Isolated showers in the morning, then isolated thunderstorms in the afternoon.
Thursday Night
East winds 10 to 15 knots. Seas 1 to 3 feet. Dominant period 7 seconds. Scattered showers.
Friday
East winds 15 to 20 knots. Seas 1 to 3 feet. Dominant period 7 seconds. Isolated showers.
Saturday
East winds 10 to 15 knots. Seas 1 to 3 feet. Dominant period 7 seconds. Isolated showers.
Sunday
East winds 10 to 15 knots. Seas 1 to 3 feet. Dominant period 7 seconds. Scattered showers and isolated thunderstorms.
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ABOUT THIS FORECAST

Last Update: 420 PM AST Tue Aug 20 2019
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