thanks ,good info on ash.Click on the layers tab and tick the volcasnic ash box
Top left -20100511/1800Z that's todays date and 1800 is 6 PM, top right is 12/0000Z is o (zero) )midnight) hours 12 May, then 12/0600Z is 12th may at 6 AM.have you any idea how one should read these maps,there are 4,each with diffenent numbers on them.