New wind forecasts have been released and it appears that the Northwestern United states will be have a plume of Toxic Cesium 137 and Iodine 131 spread into the area sometime today. It seems they have been getting hit quite often, and I imagine that Iodine levels are way beyond EPA limits in the affected areas. Watch the timeline forecast and you will see that Northern California looks to get the brunt of the plume of Radiation.
http://transport.nilu.no/products/fukushima
ATTENTION: These products are highly uncertain based on limited information for the source terms. Please use with caution and understand that the values are likely to change once we obtain more information on the overall nature of the accident. The products should be considered informational and only indicate ‘worst case scenario’ releases. From what we’ve learned recently, it seems releases of this magnitude have not yet occurred. Furthermore, these modeling products are based on global meteorological data, which are too coarse to provide reliable details of the transport of the plume across Japan.