There is no need for dedicated frequencies or nets!!! Simply call the strongest station you hear on the band and ask for assistance! This is more reliable since you know that you have good propagation. No waiting for roll calls to finish, announcements or fumbling to find a station who can hear you and report back to NCS. Nets have never provided any special knowledge, capability or technical advice. Just a bunch of well meaning guys with lots of time on their hands and nothing to do. It's not like they were professionals with certifications, rescue forces, resources, dedicated phone lines or other radio links etc. All the net guys are going to do is pick up the phone and call the USCG or police. Any ham can do that for you.