President Barack Obama has a Very Silicon Valley Friday planned, with both a Stanford entrepreneurship summit and a Mark Zuckerberg confab on his agenda. But though he doesn't have any SF events planned, POTUS will still make ripples in San Francisco as soon as tonight, as his plans to stay in a SoMa hotel will close streets and snarl traffic.

According to the White House, Obama is scheduled to arrive at Santa Clara County's Moffett Field at 6 this evening. His motorcade will then head up the freeway to SF, disrupting traffic as it travels.

The president will be staying (as he usually does) at the Intercontinental Hotel at 888 Howard Street, ABC 7 reports. Barricades have already been erected in front of the hotel, and as of this afternoon Fifth Street will be closed between Mission and Folsom and Howard will be closed between Fourth to Fifth streets.

Expect further traffic challenges Friday, when Obama will head to Palo Alto to attend Stanford's Global Entrepreneurship Summit. While he's down there, the president will also meet with Zuck to "do a Facebook Live chat and also a Google Portal conversation," ABC 7 reports.

By mid-day Friday, however, San Francisco's presidential traffic troubles will be over, with the streets closed for his visit expected to reopen by around noon. Until then, though, drivers are warned that South of Market traffic will be even worse than usual, especially for those on Mission or Sixth Streets. According to officials, drivers should expect significant delays, and if possible they should avoid the area entirely.