The first round of storms to hit San Antonio this week caused some power outages and flooding Tuesday.

Around 9 a.m., nearly 1,800 residences across the Alamo City had lost power as thunderstorms rolled through the area, according to CPS Energy. That number has since increased to 2,500 people who were without power.

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The storms also caused some flooding around the city, shutting down parts of at least eleven roads around the city: Cave Lane; Contour Drive; Ira Lee; Mission Parkway; O'Connor Road; Old Corpus Christi; Sleepy Hollow Street; Schertz Road; Southwell; Hausman;  Vance Jackson at Orsinger.

The National Weather Service predicts thunderstorms and showers are likely throughout the week with major thunderstorms expected Wednesday. There is between a 40 and 60 percent chance of rain for the San Antonio area through Friday.

San Antonio Fire Department crews also performed a water rescue to save a woman who was stuck in a flooding drainage ditch near the 3400 block of Fredricksberg. SAFD spokesman Woody Woodward said the woman, and crews are still searching the area for a possible second person.

He did not say how the woman ended up in the drainage ditch, but said it appeared that she got caught in swift moving water.

Taylor Pettaway is a breaking news and general assignment reporter for MySA.com | TaylorPettaway