An evil ritual just went down outside of Mexico City and they picked this up for a few frames on every weather radar site covering the area. Dismembered bodies found at the same location earlier today.
Sacrifices at a place of power.

Mexico City used to be the seat of the Azteca Empire a circular city built on a a lake as a capital city after the unification of 3 of the tribes. They built Mexico City directly ontop of the ancient city

The city this vortex surrounded was just west of Mexico City