Original: It made landfall on Galveston Island on September 13 as a strong Category 2 hurricane, but its large size brought storm surge of over  from Galveston Island eastward into southern Louisiana.
Simplified: It made landfall on Galveston Island on September 13 as a strong category 2 hurricane, but its big size brought storm surge of over 12 feet from Galveston Island eastward into southern Louisiana.