Tony you are one of the fortunate ones. You station stays online and you do not have me nagging you....lol. Ok some info.
The Data Summary is as you suggested. We have 106 stations listed on the summary. 102 are online at present and this is pretty much as good as it gets. Most auto and some manual that Wolfie and I add each night/day. Those off line are hidden but we can see them in the editors pages. This is what you are suggesting for the map.
beteljuice wrote the Data Summary script for us and us alone. No other network has the use of it. It is unique to us.
The Map script is written by Ken True. All the weather networks use this.
The history of this network, Map and script is here:
http://www.localweather.net.nz/smf/nz-local-weather-network-map-requests/affiliated-regional-weather-network's-historyI see I need to update the stations list. I will do so.
So the map script itself we do not own and we are unable to alter this. We manually alter the station's List as we need to.
The layout/graphics of the Map is however ours.
The Summary as you know is run at midnight each day. beteljuice wrote in a neat summary for me at the end of the script run. It tells me who is offline, how long they have been offline etc. Mostly those station reappear next morning and they are manually added to the Summary by Wolfie or myself plus appear back on the Map. If they are offline on the summary then they are offline on the map as both scripts read the realtime/clientraw txt files
When a station remains off line for a period of time I then make contact with the owner if they have not already made contact with us. This is where the nagging comes into it

Some owners do not even realise their station is offline and a reboot does the trick. Some have hardware hassles, some server hassles etc etc. For these ones we wait.
If they are not going to be returning then Alan hides them on the Map. The ongoing maintenance of the Map is a huge job and hence I do not annoy Alan unless I am sure the station is not going to be live again.
So that is how it works.
For me; I actually prefer the personal touch as opposed to just banishing them. This way if we can help then we do. Many of our station owners have been part of the NZ forums for many years. To me they are not just an off line station, they are a friend/ a weather college. I also like to know they are all ok themselves. I guess that is the female side of me kicking in.
Cheers
Jenny