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Flood threat returns to area

Wet Weekend
Friday, September 21, 2018

 

It’s shaping up to be another wet weekend in San Marcos and much of Central Texas, with a lot of scheduled activities hanging in the balance.

The National Weather Service said Thursday that periods of locally heavy rain are expected which could lead to flash or river flooding across all of South Central Texas.

“Increasing moisture from the Gulf and the Pacific combined with an upper level storm system moving across the Southern Plains this weekend will generate periods of showers and thunderstorms capable of locally heavy rain through the weekend,” the advisory said. “Scattered showers and thundershowers Thursday and during the day Friday may produce minor flooding issues from intense rainfall rates, but the best potential for flash or river flooding will be Friday night for areas generally along and north of an Eagle Pass to Kerrville line as a cold front moves in from the north. On Saturday, the focus for heavy rainfall will spread eastward across the Hill Country and I-35 corridor. For Sunday, the cold front and focus for heavy rainfall should move east of the I-35 corridor into the coastal plains. “

Overall, 2 to 4 inches total can be expected through Sunday with up to 6 to 8 inches in some spots which cannot be determined ahead of time.

Though the advisory mentioned the dreaded phrase “river flooding,” the advisory characterized the main threat as being to “small streams, creeks, canals and ditches,” which could become swollen and overflow “in a few places, but with little to no property damage.”

Rather, it advised that “ponding of water may occur at underpasses, low-lying spots and poor drainage areas.” Also, that storm drains and retention ponds may become full or nearly so and overflow in some locations. “Flood waters may prompt brief road closures.”

July Moreno of Mermaid Society SMTX said scheduled activities including the Mermaid Art Ball, the Mermaid Promenade and the Aqua Faire will go on unless there is heavy rain or thunderstorms.

“Nothing makes a mermaid happier than a full aquifer, so we are going to promote celebration of the rain.”