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.

Depending on the location of the Omega block, Michigan can be under the influence of the high-pressure system that would bring sunshine, quiet, and warm weather.

The current weather set up resembles that Omega symbol with an area of high pressure stuck between two areas of low pressure. The jet stream, as it navigates its way between the highs and lows ...

Even as the omega block pattern has broken down, this low won’t budge. Since it’s detached from any steering currents, it can sit and spin for days. And it should remain parked until next week.

Omega blocks are most common during the spring and fall transition seasons. While the name may sound a bit technical, the result is something we all understand—a weather pattern that requires a ...

An omega block had settled over much of the country. It is a large-scale weather pattern in the upper atmosphere shaped like the Greek letter omega (Ω) and can stall weather systems for days ...

An omega block is a slow-moving weather pattern in which two low pressure systems become stalled on either side of a high pressure area, creating a configuration that resembles the Greek letter ...

DAYTON, Ohio (WDTN) — The Miami Valley has seen a stalled low pressure over the area for several days, leading to on-and-off showers. It’s all thanks to something known as an Omega Blocking ...

Blocking patterns can remain in place for several days, resulting in long spans of persistent weather for locations under the block. Let's go through 3 different types of blocks that can often ...

Meteorologist Sven Sundgaard analyses the blocking pattern and a surge of warmth — perhaps near 90 degrees on Mother's Day — to Minnesota. How long will it last and when are changes coming?

Drizzly days bring relatively low rainfall to Maine, despite ‘omega block’ Between Sunday and Tuesday evening, less than 2 inches of rain fell over most of the state, though parts of southern ...

A strong, slow-moving system was disrupting weather across the U.S., bringing unusually cool and wet conditions into Arizona. An omega block had settled over much of the country.