Heads up if you’re going to T-Mobile Park Saturday for the Mariners watch party: You may want to budget some extra time for traffic.

First lady Jill Biden will visit Tacoma and Seattle Friday and Saturday, and the Washington State Department of Transportation is recommending Mariners fans head to the watch party early.

On Saturday, the Mariners will play the Blue Jays in Toronto starting at 1:07 p.m. in Game 2 of their three-game American League Wild Card series.

People should expect “significant congestion and delays” during Biden’s visit, WSDOT said.

Biden arrived at Boeing Field Friday afternoon and headed to Tacoma and Bates Technical College. Saturday, Biden will headline a fundraiser for Sen. Patty Murray at noon. She is also scheduled to participate in an event celebrating children in military families and veteran caregivers at the Pacific Science Center in Seattle.

Jill Biden to visit Tacoma and Seattle, speak at Murray fundraiser

Secret Service restrictions mean neither WSDOT nor the city can say exactly which roads will be closed or when for Biden’s visit. President Joe Biden’s visit to Seattle earlier this year led to intermittent closures of Interstate 5 and delays on Sound Transit’s light rail and King County Metro.

Lanes will also be reduced on Interstate 90 and southbound Interstate 5 Friday evening through early Monday morning for roadwork.

The winner of the Seattle-Toronto series will head to Houston to play the Astros in the divisional round starting Tuesday.