From the Spaceflight Meteorology Group:

At 10 AM CDT an area of thunderstorms was located from south of Alvin to Sante Fe to Galveston. These storms are moving north at 40 mph. Doppler radar is indicating pockets of 40 to 60 mph winds embedded in the line. JSC can expect some brief heavy rain, cloud-to-ground lightning and brief gusty winds of 40+ mph starting sometime around 10:20 to 10:30 AM with these storms as the pass quickly by.