FLOODING!

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Weather Discussion

The primary weather story today will be the threat of excessive rainfall and flash flooding across the Texas Hill Country. An upper-level low will fuel widespread showers and thunderstorms capable of producing torrential rainfall. Many locations could receive more than 4 inches of rain, with isolated totals of 8 to 10 inches possible where thunderstorms repeatedly move over the same areas. Significant flash flooding is likely, particularly in low-lying areas, along small streams, and in locations with poor drainage.

Across the Southwest, the North American monsoon will remain active from Arizona through Nevada and Utah. Afternoon and evening thunderstorms will produce gusty winds, frequent lightning, and locally heavy rainfall. Flash flooding will be possible in normally dry washes, slot canyons, burn scar areas, and other flood-prone terrain.

Farther east, scattered gusty thunderstorms are expected across portions of the Northeast later today and this evening, including parts of Pennsylvania, the New York City metropolitan area, and southern New England. The strongest storms may produce damaging wind gusts, brief heavy downpours, and frequent lightning.

Looking ahead to tomorrow, additional gusty thunderstorms are expected across much of the Northeast as another disturbance moves through, bringing another round of locally heavy rain and gusty winds.

Overall, the greatest concern today is the potential for dangerous flash flooding across the Texas Hill Country, while scattered strong thunderstorms affect the Southwest and portions of the Northeast.