“VHF has been open of late”
In amateur radio it’s referred to as a “band opening”, in CB it’s often called “skip”, an atmospheric condition hams rely on to reflect their signals, bounce them from the ground to the atmospheric layer, increasing the distance the signals will travel.
I’ve worked two amateur repeaters along the east coast, one on the Delaware Memorial Bridge and another on Cape Cod. I was using a local repeater in Ct. All three repeaters used the same PL to activate. It’s called Tropospheric Ducting, set up by a weather front that covered at least the distance between the bridge and the cape. While my contacts were not technically being bounced off of the ionosphere, the weather front acted in the same manner.