The numbers are conflicting. I’ve heard that anywhere from 15-50% of residents opted not to leave. I don’t know what the actual percentage is.
Ah, now the KHOU news anchors are saying it is indeed 40%. Apparently you can still evacuate in one of the city’s “high-water” vehicles, but the mayor says it’s too dangerous. If you haven’t left by now, you should get inside and stay there. The storm is now 115 miles from Galveston. The eye is projected to hit the east end of the island, and the Bolivar peninsula.
Any way you slice it, it's thousands of people. Prayers for them.