NWS: San Antonio under flood watch until Tuesday morning with tonight's storms

The National Weather Service reports the time frame for the heaviest rainfall is between 7 p.m. Monday and 7 a.m. Tuesday. The National Weather Service reports the time frame for the heaviest rainfall is between 7 p.m. Monday and 7 a.m. Tuesday. Photo: National Weather Service Photo: National Weather Service Image 1 of / 50 Caption Close NWS: San Antonio under flood watch until Tuesday morning with tonight's storms 1 / 50 Back to Gallery

SAN ANTONIO — Severe rain storms are expected to douse San Antonio Monday night with between 1 and 3 inches of rainfall and some areas with between 5 and 7 inches, prompting the National Weather Service to issue a flash flood watch, weather predictions show.

The flash flood watch will remain in effect until 7 a.m. Tuesday, the NWS tweeted Monday morning.

The NWS reports the time frame for the heaviest rainfall is between 7 p.m. Monday and 7 a.m. Tuesday.

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The main area of concern extends east from the Hill County to the Interstate 35 corridor, though "it is also possible for some of the higher rainfall totals to extend into parts of the southern Edwards Plateau and Rio Grande," according to an NWS statement.

Meteorologists say to expect flash floods on some roads, underpasses and low-lying areas. There's also a slight risk of hail and winds reaching 60 mph.

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"Strong to severe thunderstorms will be possible on Monday afternoon and evening, but the main threat will be periods of heavy rainfall that could lead to flash flooding late Monday afternoon into Tuesday," according to the National Weather Service.

Isolated scattered thunderstorms are expected to continue through Friday.

The severe weather will be the result of a cold front interacting with "abundant moisture" in the areas affected.

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