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 ...

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

It is defined by a powerful high pressure area with an area of low pressure "underneath" or south of the high pressure.

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

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

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

The forecast has changed to bring rain this weekend. Why does it seem to keep raining here over the last few days? The ...

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

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.