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 ...

The omega block is a weather term that describes the shape of the jet stream in the northern hemisphere: a curved upside-down "U" with two outward facing lines, which appears to resemble the 24th ...

A rare Omega Block weather pattern is trapping heat across Europe, causing temperatures to soar. Learn how this atmospheric ...

A stalled weather pattern known as an omega block is locking hot air over Western Europe, worsening a deadly heatwave that has overwhelmed countries from France to the UK.

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 ...