A Tornado Warning is in effect for Brazoria and Galveston Counties until 1:45 p.m. Wednesday.
Large hail has been reported in Pearland, Alvin, and Friendswood.
High winds have reportedly knocked over trees in Alvin, where the worst of the storm was located as of 1 p.m.
FOX 26 Chief Meteorologist Dr. Jim Siebert says some rotation in the clouds was spotted near Alvin just south of Highway 6.
The storm is moving southeast at 10 miles per hour.
A Severe Thunderstorm Watch is in effect for all coastal counties until 8 p.m.