OneBlood officials sent almost 300 units of blood to Texas for Harvey victims, but they are still in need of more donations.
Officials are urging people with all blood types to donate, but there is an urgent call for O negative and O positive blood, platelet and plasma donations.
Generally healthy people age 16 or older who weigh at least 110 pounds can donate blood.
Devastating flood waters, massive destruction and steady rainfall is preventing blood centers in Texas from collecting blood
Officials said the scenario is expected to continue for the foreseeable future.
Photo identification is required.
Visit oneblood.org/donate-now or call 1-888-936-6283 for hours and locations of OneBlood Donor Centers and Big Red Bus drives.