The American Red Cross says the national blood supply shortage is still a crisis, and they continue to need your help. The Red Cross said in June the blood supply fell about 25% of where it should be this time of year. Since the second blood crisis in Red Cross history was issued in late July, thousands of generous donors have stepped up to help save lives. At the same time, the blood supply remains under severe pressure, just as many communities transition to back-to-school schedules and people enjoy final summer plans. When fewer donors are available to give, the impact on available lifesaving blood products can be significant — especially when the blood supply is already facing a four-year summer low.