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Widespread rain expected late Sunday through Monday

Posted: 9:16 AM, Sep 09, 2018
Updated: 2018-09-09 10:16:19-04
Monday's forecast
Monday’s forecast

We’ve had a series of days now with daily downpours scattered about the area, but the atmosphere is getting primed to deliver an even better chance of rain late Sunday through Monday. Most folks are likely to pick up on some rain, but a few locations missing out on the rain is still a possibility.

Flash flood watch

As of 9 a.m., the National Weather Service has issued a flash flood watch for only Duval county in the Action 10 viewing area. This has the possibility to be expanded eastward depending on how rainy things look for Monday. But for now, they have chosen to keep most of the Coastal Bend out of the watch since our mostly dry pattern this summer should allow the ground to soak up lots of water. The flash flood watch for Duval county is set to expire at 7 p.m. Sunday.

Sunday P.M. forecast

Lots of widespread flooding rains have been impacting the San Antonio area for much of the day so far. This is where the humid, tropical moisture is meeting with a stalled out cold front and some upper level energy. All of these ingredients are good for building heavy rain makers. The cold front is expected to sag south by early Monday. This should help to increase our rain chances by Sunday evening through Monday morning. Until then scattered showers and storms will pop up on Sunday afternoon.

Sunday evening is when more widespread rain is expected to develop over the area. It will most likely develop to our west or southwest before spreading across most of the Coastal Bend.

Monday’s forecast

The elevated rain chances continue on Monday. We will most likely be dealing with a very wet morning commute and bus stop, so be sure to take the umbrella and rain jacket. Scattered to widespread rain will still be possible during the afternoon. As a result of the rain, the sun will not make much of an appearance for Monday. The clouds and rain should keep the temperatures down in the 80s all day.

By Tuesday, the rain chances go down, but they certainly won’t be gone. Scattered showers are still in the forecast for Tuesday.

Rainfall totals

While the rain will not be evenly spread—some locations seeing far more than others—some areas could see an inch or two of rainfall.