‘Fire up the duck boats!’

Here’s what you need to know if you plan to brave the elements and join as many as 1 million fans celebrating the New England Patriots’ fifth Super Bowl win at today’s rolling duck boat rally in downtown Boston:

Dress for the weather! The forecast calls for rain and a high of 36 degrees.

Don’t drive! All subway lines will be running at rush-hour service level beginning at 9 a.m. Plan for longer travel times and purchase round-trip tickets in advance to avoid long lines. Government Center Station will be closed from 9:30 a.m. until the end of the parade.

Commuter Rail riders should be prepared for at-capacity parking lots/garages. Arrive early, seek out stations with ample parking, and download the MBTA’s mTicket app to buy tickets in advance.

From the North: Take the Orange Line to State Street Station or Haymarket Station.

From the South: Take the Red Line to Park Street Station.

From the West: Take the Green Line to Park Street Station or Haymarket Station.

From the East: Take the Blue Line to State Street Station.

Parking bans and street closures: Streets along the route and adjoining side streets are closed to traffic and have parking restrictions to allow access for emergency vehicles and space for viewers. Pay attention to posted signs.

Nearest hospital emergency rooms include Massachusetts General Hospital, 55 Fruit St., and Tufts Medical Center, 800 Washington St.

For people with disabilities, accessible viewing areas have been set up at Copley Square, next to the Copley MBTA Station elevator, and at City Hall Plaza, next to the Government Center MBTA Station.