United Blood Services has less than a one-day supply of O-negative blood on hand.

flickr - from mrs d krebs

This is a very dangerous situation going into the Memorial Day holiday weekend.

If there was an emergency,  there would not be enough blood to handle the need.

Donors who are at least 16 years of age and in good health, can go to the UBS Center at 2020 West Beauregard Avenue, in San Angelo.

Visit unitedbloodservices.org or call 325-223-7500 for more information.