Drawn from that very same phrase, IIRC.
But, regional differences are involved.
Today’s “In The Air” update: Nothing exciting.
There is an E6 (Doomsday) flying along the western Gulf Coast.
Likely reason is the presence of P3 (sub-hunters) in the same latitudes.
presence of P3 (sub-hunters) in the same latitudes
Meant Northern latitudes...