Winter weather has affected blood donations throughout the region. At the Kentucky Blood Center in Lexington, spokesperson Denise Fields says snowy conditions have already forced the cancellation of numerous blood drives.“We were planning on today having a certain amount of blood on our shelves and the hospitals know that so they can plan surgeries and things like that. But then when the snow hits and there’s cancellations, then we don’t have enough blood. Then we have to be a little bit more creative and try to do something to get blood donors in here,” she said. The Kentucky Blood Center supplies blood throughout Central and Eastern Kentucky. Information about donating blood in the Louisville area is here.