When using skyradar I find that the SIGMETS keep getting added to the display as updates are issued. However the old sigmets do not go away after they expire. This results in a pile up of sigmets and it's hard to tell where the newest, active sigmet actually is.
This is worst with convective sigmets which tend to be updated very frequently and where knowing where the latest update is positioned if very important.
The only workaround that I have found is to kill the skyradar app and then restart it, but of course that erases all of the weather data and doing this while flying the airplane and navigating weather is quite a handful.
If the expired sigmets could be removed or only the latest update of each convective sigmet could be displayed this would make the app much better for me. :-)
