The large-scale weather pattern that's now influencing much of the USA's weather – known as an omega block because of its resemblance to the Greek letter omega – isn't budging right now.

Drought and flooding aren’t the only impacts that come with an Omega block pattern, either. As wildfires raged out of control across Quebec, Canada in early June 2023, an Omega block locked in ...

A high-pressure pattern called the "Omega Block" will keep dry conditions in Portland through Wednesday of next week, but wetter conditions are expected to arrive by the first weekend of February.

PORTLAND (WGME)--- Maine has been stuck with some very wet and cool weather. And it's all thanks to a pattern known as an omega block. An omega block is named because of its resemblance to the ...

A weather pattern known as an omega block will dominate the United States this week, bringing wet, cool weather to parts of the East and West and mild, dry conditions in between. Here's how it works.