Natural disasters often boost risk aversion, and Sandy is probably no exception.
"You find when these sort of events happen that it can affect markets in terms of a bit of risk off mentality," he told CNBC.
The upcoming nonfarm payroll report could also boost the buck, Andrews says. He says projections of a roughly 124,000 increase in jobs are quite achievable. If the report actually exceeds those expectations, "we might see," he says, "that the U.S. is growing despite a lot of global concerns." And that would be good for the dollar.