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 ...

A blocking pattern known as a Rex block is setting up over Eastern North America, and is responsible for the revival of summer in Ontario and Quebec for the days to come We're just over a week away ...

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 ...