Yep, down due to hoster issues.
The logs show the last successful access was 21/Apr/2015:18:21:16 -0400
The first 'back online' access was at 22/Apr/2015:02:29:43 -0400
so just a bit more than 9hrs outage.
I could SSH to the site, but oddities prevailed. Load factor was in the 20s and filesystem commands like ls all failed with 'ls: cannot open directory .: Input/output error'
I'd called the tech support, waited for 16 minutes for pickup, then was dropped because the operator couldn't hear my responses.
There was 'audio pixelation' on the on-hold music, and the auto-responder couldn't decipher my touch-tone entries.
The webserver hasn't been rebooted, so I'm suspecting some kind of back-end SAN failure.
Both WXForum.net and the regional network hub (northamericanweather.net) are hosted on the same server, so both were down for the count. My other sites (saratoga-weather.org and a group of regional networks) were not impacted by the outage.
It's really bad when the Phone system also goes out during an outage. I tried Twitter and email.. finally got responses after the problem was fixed.
Ken