complex said:For some unknown reason, a grid magically appears on those on-line maps if you select the 'wind report' option. It also displays everything with a yellow tint, so it might not be what you are looking for. No, I don't know what the 'wind report' option is supposed to do ...
Click on 'LEGEND' in the menu top right (where it says 'BUY MAP') and all is explained. The map is coloured to indicate mean wind speed, which appears to be pretty close to 8ms-1 for most of the country; pan over to the west coast and there are some red bits!graham said:I don't understand the "wind" thing either, but for my purposes you can pick up a perfectly good screen grab to deal with a 3 km x 2 km area from it. It's the 1:50000 map as far as I can tell, but in a strange shade of yellow.