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 ...

If you have been keeping an eye on weather forecasts recently, you may have heard meteorologists mention something called an ...

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

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

Meteorologist Sven Sundgaard analyses the blocking pattern and a surge of warmth — perhaps near 90 degrees on Mother's Day — ...

An uncommon atmospheric phenomenon known as an omega block will bring days of rain and thunderstorms to the Eastern Seaboard, starting on Saturday and lasting until Wednesday or Thursday.

By Tuesday, a heavy rain and thunderstorm pattern will sweep across eastern Texas, Oklahoma, Arkansas and Louisiana. Intense ...

The forecast for May is pointing to a rapid warm up with rains across the drought-stricken Plains, but there's a drier forecast for the heart of the Corn Belt. One meteorologist is concerned about the ...

The U.S. is experiencing an “omega block," which locks in unsettled conditions in some areas while others have extended dry ...

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

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