BLUF

Unprecedented changes in Earth's air currents are causing extreme heat waves. The southern jet stream over North America has fragmented, disrupting the usual west-to-east flow.

Summary

KEY POINTS:
  • Unprecedented heatwave triggered by jet stream revolution.
  • Arctic warming weakens Northern Hemisphere jet streams.
  • Paths of jet streams change latitude, exposing the US to a potential heat dome.
READ: Earth's Jet Streams Look as Chaotic as a Van Gogh Right Now, And That's a Big Problem

References