More than 100,000 customers lost power and Houston’s airports canceled hundreds of flights as a line of thunderstorms dropped more than a foot of rain across southeastern Texas. Houston and Harris County officials encouraged residents to stay in their homes. Houston’s buses and light-rail service were suspended, and most area school districts closed their doors. More than half of Harris County’s 22 bayous and creeks, which help with flood control, were out of their banks, County Judge Ed Emmett said on . No deaths or injuries were reported.
  • The National Weather Service declared a flash-flood emergency until 1 p.m. local time.
  • George Bush Intercontinental Airport declared a full ground stop, with 465 cancellations and 108 delays as of 11 a.m. Houston time. Hobby Airport had 144 cancellations and 14 delays.
  • CenterPoint Energy, the region’s electric transmission and distribution company, reported 80,222 customers without power at 11:25 a.m.
  • Emergency workers conducted more than 150 high-water rescues, Emmett .
  • High water was reported on all major roadways.
  • Parts of the county reported more than 14 inches of rain in 24 hours, according to the Harris County Flood Warning System.