Metro is operating on a normal weekday schedule Wednesday as the Washington region braces for a potentially major snowstorm. MetroAccess service and certain Metro commuter bus routes have been canceled, however, and Ride On buses are experiencing delays.

Metrorail customers are advised to plan extra time for their commute. “You may encounter minor delays due to snow and ice clearing efforts, as equipment that removes snow and ice from the third rail operates between regularly scheduled trains,” the Washington Metropolitan Area Transit Authority said in a statement.

Some Metrobus routes may be detoured and bus service may be reduced or suspended as conditions deteriorate, Metro said. Metro is aiming to notify Metrobus riders two hours in advance if service is suspended.

Metro is advising checking your route online before your trip.

More information about Ride On delays is available at Montgomery County’s website.