Going to list the double warning strategy.. I thought it was listed here in my blog for others to use..
when a state has a XX0 , X0X, 0XX
A number containing one 0.. look for the other digits to show up in a double..
Say.. 208 falls.. Look for 22X 2XX or 8XX 88X to fall with a few days...
now sometimes the vtracs mirror will fall.. 3xx 33x 77x 7xx
Just something to keep in mind...
Catch those doubles..