Watching the Gulf of Mexico for possible tropical development

Hot in San Antonio; parts of Gulf Coast could see rain by late week

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SAN ANTONIO – The week ahead will feature plenty of summertime heat across South Texas, while parts of the Gulf Coast, including Texas, will need to monitor the development of a potential tropical system.

Here's what you need to know:

High pressure will be over South Texas for the next few days, keeping our forecast hot and humid.  A stray shower or storm will be possible across the Hill Country on Monday and a stray rain chance will return late on Wednesday, too.  High temperatures will be in the mid to upper 90s, with a heat index near 100 degrees for a couple of hours each afternoon.

By Thursday, low-end rain chances will arrive, as high pressure shifts to our northwest. There will be just a 20% chance of isolated showers and storms.

Chances good for Gulf of Mexico disturbance

The forecast beyond Thursday becomes highly uncertain, as much of the forecast hinges on what occurs in the Gulf of Mexico.  As of Monday, the National Hurricane Center has an 80% chance of development over the next 5 days for a disturbance which is currently over Georgia.  


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