Several of blood drives across the Commonwealth have been canceled due to the recent snow storms. Rocio Rivera has details.Preview: Snow wreaked havoc this week in Virginia and across much of the Southeast as historic snow storms hit the region. And that caused several blood drives to cancel or postpone collections.Preview: That's Red Cross Director of Communications for Virginia, Kristopher Dumschat, telling WAVY the need for donations is very high right now. The agency is urging all healthy people, especially those with Type O blood, to donate in the next few weeks. And the Red Cross says if you donate now through Sunday, January 26th, you can be entered to win tickets to this year's Super Bowl in New Orleans. I'm RR.