If the 145.110 is not available, the designated backup repeater is the Montgomery County ARES 146.640 MHz with a 123.0 Hz tone.
If Dayton SKYWARN is active and the 146.640 is in use, the net will be moved as determined by the DEC or NM and Net Control operators.
As a final option, listen on 145.11 simplex for any announcements as to where the net has moved.