I guess you could contact the said Mr Paul Hermann on the number supplied and ask him for a copy of HIS map to be sent via PDF....
On the other hand, HE could have taken the initiative and supplied same, as a service, up front..!!
Perhaps IF we 'all' sent a similar request..??
In the 'Ole F.S.' days, we used to draw the areas on the approp. map, and advise pilots that the 'SIGMET' area, or whatever it was, would affect his flight, on his/her track, between 'Points' / positions xxx or whatever....at /up to levels yyy ....
Keep it simple....
