With mandatory evacuations in place in New Jersey and New York and more than 10,000 flight cancellations in the U.S. alone, Sandy has the potential to affect travel on a global scale.
"Hurricane Sandy is going to be affecting thousands of people throughout the eastern seaboard, and we're already seeing flight delays and cancellations," says Krissy Vann, a presenter at The Weather Network's sister station, Travelers Network.
"New York is a major travel hub and depending on how things go with the storm, there is the possibility that LaGuardia and JFK airports could be completely shut down, leaving thousands of people stranded."
On Sunday, New York City's Mayor, Michael Bloomberg announced that the city's subway and buses would cease operations ahead of Sandy.
Closer to home, Billy Bishop airport in Toronto grounded all flights on Monday. Other provinces are keeping an eye on the system, with a view towards cancelling or postponing additional flights as the system bears down on the U.S.
Vann says the best way to avoid travel headaches is to plan as far ahead as possible.
"Check with your airline, or consult an online flight tracker for updates before heading out," she says.
The heavy rain and strong winds that will move into parts of southern Ontario, southern Quebec and the Maritimes on Monday could affect travel on the ground as well.
"It's going to be a messy drive for some people," Vann says. "Be respectful of the conditions. That means reducing your speed and keeping a safe distance from other vehicles. When these types of weather conditions cook up, we tend to see the same types of traffic snarls, over and over again."
For live updates and analysis tune to The Weather Network on TV and track Sandy’s progress here on the web.