Any activity on the SHARES frequencies?
6765 USB, 6845 USB and 6910 USB? I would keep an eye out for activity, especially on 6910 USB (alternate 6912 USB/6915 USB) over the next couple of days. I know there's the 2 and 4 MHz SHARES (and SECURE) FEMA nets as well as the 7 and 14 MHz "daytime" frequencies.
4458 USB
14396.5 USB