December 11, 2013; 4:29 PM ET
Sunny conditions will continue through the weekend for San Francisco. more >
Rises at 7:12 AM with 9:37 of sunlight, then sets at 4:49 PM
Rises at 1:21 PM with 13:23 of moolight, then sets at 2:44 AM
A Winter Spare the Air Alert is in effect through Thursday.
A storm of charged particles coursing through a volcanic ash cloud sparked the spectacular green lightning seen at Chile's Chaiten Volcano in 2008.Read Story >