I've been trying to modify the alerts code on my site (which started with Curly's code), specifically the severity/color information that exists in the nws-alerts.php $alert_types array, to match what is used on the NWS home page map. So, I asked the nice folks at the NWS if there was a complete list somewhere. And and ye shall receive...
https://www.weather.gov/help-mapPutting this out there in case anyone else is looking to do the same.
