[aprssig] Weather graphics

[Robbie, wa9inf]

Hi,

I guess this is more for Gerry, since he has some insight to the NWS and 
shape files displayed on our APRS maps..

Lately there are lines being drawn from way up in northern Canada, all 
the way down to Kansas, then a box on the ends of the lines in what may 
be a Area of Alert???

Any ideas why all the looong lines???? What do they mean?

Robbie