The sweeping pattern that's now influencing much of the USA's weather is called an omega block because of its resemblance to ...

A strange atmospheric pattern known as an "omega block" is preventing the usual eastward progression of weather across the ...

An "omega block" in the atmosphere will enhance the chances for stormy weather and big shifts in temperature over parts of ...

The Omega Block sounds like a great name for a progressive heavy metal band. All that aside, it is a legit weather pattern.

Omega block weather pattern is forecast this weekend to flip temperatures, bring snow, storms across the country. Here's what ...

A common upper-air pattern seems to be coming a few weeks early. It could be the sign this particular weather pattern will be ...

"Intense" thunderstorms roll into Texas Friday. An omega block is likely to bring flooding risks and low temperatures over ...

A weather phenomenon has been impacting central and eastern Iowa today in the form of persistent cloud cover. This pattern is ...

Meteorologist Kim Castro explains what it is and why it's bringing several days of unsettled weather to Houston.

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.