Rossby waves are the large bends or meanders in the jet stream. When the jet stream dips southward, meteorologists call it a trough, which typically allows colder air to spill southward. When the jet ...
WWLP Springfield on MSN
Early tornado outbreak in North fueled by warmth, jet stream
A tornado outbreak has left at least six people dead and caused significant damage as severe weather moved from the South to the Midwest.
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