A strange atmospheric pattern known as an "omega block" is preventing the usual eastward progression of weather across the U.S. — but what is this weird block, and when will it go away?

It’s about to rain for days in eastern states because of an unusual atmospheric phenomenon known as an omega block.

Due to the extensive tornado, hail, and wind damage across the central and eastern United States, global insurance and ...

A weather pattern called an 'Omega block' is going to bring a prolonged period of sunshine and dry weather say weather ...

An Omega block with stabilize conditions in Calgary. Jodi Hughes has a look at the five-day forecast from the Sky Watch Weather Centre.

However, it's not all bad news, as weather experts predict that the record-breaking sunshine could continue for most of the ...

NWS warns of gale-force winds, rough seas, and inland heatwave in San Francisco, urging caution for mariners and residents.

The great weather we're currently enjoying is down to a a blocking area of high pressure sitting just to the north of Ireland ...

Warm weather set to give way to more unsettled conditions - but forecasters predict warm summer ahead in Ireland ...

MET Eireann has slapped five counties with a new Status Yellow thunderstorm warning that is already in affect. The alert, ...

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