on Mar 17, 2011
http://theintelhub.com/2011/03/17/official-un-forecast-diluted-radi...
An official United Nations forecast of the possible movement of the radioactive plume coming from crippled Japanese nuclear reactors shows it churning across the Pacific, and touching the Aleutian Islands on Thursday before hitting Southern California late Friday.
The Feds have deployed radiation detectors to the west coast to monitor the situation.
UN: Radioactive Plume Could Come to SoCal By Friday
http://www.ktla.com/news/landing/ktla-local-radiation-monitors,0,26...
U.S. radiation experts try to decipher reports from Japan - Japan not releasing radiation levels making it EXTREMELY HARD to gauge danger to U.S. west coast.
http://www.usatoday.com/news/world/2011-03-17-japanradiate17_ST_N.htm
New York Times Map
http://www.nytimes.com/interactive/2011/03/16/science/plume-graphic...
First Radiation Particles From Damaged Reactors Likely to Hit California, Friday
http://www.economicpolicyjournal.com/2011/03/first-radiation-partic...
BBC
0825: Low concentrations of radioactive particles are heading eastwards from Fukushima towards North America, a Swedish official is quoted as saying by Reuters. Lars-Erik De Geer, research director at the Swedish Defence Research Institute, a government agency, was citing data from a network of international monitoring stations, but stressed the levels were not dangerous for people.