Hoxworth Blood Center is putting out the call for blood and platelet donors.
Spokeswoman Alecia Lipton says area blood supplies are at a fragile level.
"Some of that is due to a very low donor turn out. We can blame part of that on cold and flu symptoms going around but also (Tuesday), due to the weather, we had some folks who were no-shows for their appointments," she says.
Lipton says all blood types are needed and platelet donors are especially important.
President Obama, who suspended personal campaigning this week while he dealt with the aftermath of the storm that devastated large parts of the east coast, will return to the campaign trail Friday in the key battleground state of Ohio, where the polls show him in a dead heat with Mitt Romney.
There is no official word yet from the Obama-Biden campaign on re-scheduling the president's rally that was scheduled for this morning at Duke Energy Convention Center in Cincinnati. That was canceled by the White House Tuesday, but could well be re-scheduled.