HOUSTON — A fast-moving thunderstorm caused a rush hour nightmare with pounding rain that quickly flooded Houston-area roadways.

High water caused backups on several interstates, including I-10 East near Wayside where drivers couldn't get through in either direction. 

In Pasadena, heavy wind caused the awning of a Dollar General to come crashing down, damaging 8 vehicles.  Fortunately, there were no injuries.

Sideways rain hit downtown Houston just as thousands of office workers were leaving for the day. 

Several side streets were also a mess. 

RELATED: List: High water locations on major roads across Houston

RELATED: Map of power outages in Houston

The storm caused hundreds of lightning strikes.

At one point, there were 500 lightning strikes in a 10-minute period, according to KHOU 11 Chief Meteorologist David Paul.

At 6:45 p.m., CenterPoint reported nearly 17,000 customers lost power.

Northline lightning
Jose sent us this image of a lightning strike in the Northline area.
Jose

Bush and Hobby airports reported flight delays of up to an hour. 

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