I'm particularly annoyed by all the "bad weather/low turnout will help or hurt this or that candidate" but weather in Northern Virginia started to get bad around 3pm. By 5pm ice was everywhere on the streets. My 45 minute commute took two hours. Voters who didn't have a statement to make with their vote, may very well have decided to skip an evening to the voting booth. I voted at 8am. When I voted, there were no campaign workers -- Republican or Democrats -- to be found and I was the only voter in the school gymnasium.
Exit polls say the Republican race could be a close one. Since the nomination is wrapped up, perhaps only the protest voters showed up.