Creeks, rivers flow; reservoirs gain significantly with recent rains


SAN ANGELO, Texas — April 25, 2019 — Dove and Spring Creeks, Middle and South Concho Rivers — all the inputs to the Twin Buttes Reservoir — swelled with runoff in the last 48 hours from heavy rains in the area. Twin Buttes has registered an increase of almost a half-billion gallons of water (1,515 acre feet, 493.6 million gallons) since Tuesday, taking the reservoir to 68.12% full.

The E.V. Spence Reservoir near Robert Lee has gained 2,300 acre feet (749.5 million gallons) taking it to 27.24% full, while O.H. Ivie gained 4,400 acre-feet (1.43 billion gallons, 55.22% full) and continues to rapidly rise.

A Flood Warning has been issued by the National Weather Service (UPDATE: The flood warning has since been cancelled – KG) for the Colorado River near Ballinger as heavy rains in Nolan, Coke, Runnels and Mitchell find their way into Elm Creek and the river. The heavy rains triggered the minor flood alert as the river is expected to crest its minor flood stage of 18.0′ this afternoon to a maximum forecast level of 18.7′, affecting pasture lands and low-lying areas near the river. That water will make its way into the O.H. Ivie Reservoir.

Oak Creek Reservoir and Ballinger Lake have over-topped their spillways by nine-tenths of a foot (10 13/16 inches) and seven-tenths of a foot (8 13/32 inches), respectfully. That water is wending its way to O.H. Ivie as well.

Where it rained

The National Weather Service at Mathis Field recorded 1.88″ rain in the last two days. Some of the heaviest rainfall reports (West Texas Mesonet 96 hr. summary) recorded for Concho Valley: 7 miles northwest of San Angelo,  2.76″; Mertzon, 2.34″; Wall, 2.26″; Big Lake, 2.19″; Menard, 2.13″; Junction, 1.61″; and Sterling City, 1.45″.

For a complete snapshot of the current Concho Valley Reservoir status, PLEASE CLICK HERE.

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San Angelo is in standard conservation, which restricts outside watering to twice every seven days at no more than 1 inch per week. Watering is prohibited between noon and 6:00 p.m., but runoff of more than 150 feet down any street, gutter, alley or ditch is prohibited.

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