Atlantic hurricane best track At 06:00 UTC (1:00 a.m. CDT) on August 18, Alicia became a major hurricane and made landfall an hour later on Galveston Island— 25 miles southwest of Galveston, Texas—with maximum sustained winds of 100 mph (160 km/h) and a minimum barometric pressure of 962 mbar (hPa; 28.41 inHg) as measured by aircraft reconnaissance,Atlantic hurricane best track making it a low-end Category 3 on the Saffir–Simpson hurricane wind scale.