This cumulative animation shows the ash cloud from April 15 up through this coming Monday or so. One can see that the cloud began to disperse at about the same time that the powers that be switched from meteorological criteria to financial criteria to set ash limits. One can also see that another big blob of ash is expected to sweep over the U.K. in the coming 48 hours or so. Strangely, I haven't read anything about it in the news.
http://api.met.no/weatherapi/volcani...type=image/gif