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What is an Omega block?

An Omega block is a stagnant weather pattern named for its resemblance to the Greek letter Ω.
Millions of Americans are bracing for a wave of stagnant weather this week with the potential for soaring temperatures and ...
Add Yahoo as a preferred source to see more of our stories on Google. FAYETTEVILLE, Ark. (KNWA/KFTA)— A not-so-typical weather pattern is happening right now above our heads. It’s called an Omega ...