What could one-up abee-nado?
How about an asteroid.
The preview for the end of season 5 (and the entire series) aired followingMonday’s winter finale.

Mateo (Julian Works) in peril when ‘9-1-1: Lone Star’ season 5 returns.Fox
Then Judd (Jim Parrack) gets a phone notification of the incoming disaster.
Whatever happens, it’s clear it doesn’t go well for the first responders.
9-1-1: Lone Starreturns Jan. 20 at 8 p.m. ET/PT on Fox.