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 on April 18th.
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. 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.