News Climate

New research may upend what we know about how tornadoes form

As the climate changes, twister behavior on the ground is changing too

tornado in Oklahoma

BIRTH OF A TWISTER  Radar data combined with visual observations of this tornado that struck El Reno, Okla., on May 31, 2013, are offering new clues into how such twisters are born.

Nick Nolte/Wikimedia Commons (CC BY -SA 3.0)

By Carolyn Gramling

- More than 2 years ago

WASHINGTON — Tornadoes may form from the ground up, rather than the top down.