A tendril of the marine layer spills through the civic center and and crosses Market Street before sunrise in San Francisco on September 22, 2009. California is expecting triple digit temperatures. UPI/Terry Schmitt
A couple watches the fog before sunrise from Twin Peaks in San Francisco on September 22, 2009. California is expecting triple digit temperatures. UPI/Terry Schmitt
The Alemany finger of fog blankets the Ingleside district before sunrise in San Francisco on September 22, 2009. California is expecting triple digit temperatures. UPI/Terry Schmitt
Dawn throws a pink cast on fog blanketing the bay except for high points of the University of San Francisco in San Francisco on September 22, 2009. California is expecting triple digit temperatures. UPI/Terry Schmitt