It's going to be a busy, warm, and wily weekend. First, the Asian Heritage Street Festival, which takes place on Saturday, May 17 from 11:00AM to 6:00AM, around Japantown will result in the following closures from 3:00AM. to 10:00PM: * Post Street from Fillmore Street to Laguna Street * Webster Street from Sutter Street to d."Geary Boulevard * Intersection of Webster and Post What's more, the 2-Clement, 3-Jackson, and 22-Fillmore lines "may be affected."......