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

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

An omega blocking pattern is named after the Greek letter (Ω) and slows down the ordinary west-to-east flow of weather systems across the country.

An “omega block” weather pattern, so named for its resemblance to the Greek letter, is influencing conditions in Texas and the rest of the country.

Texas this week finds itself at the center of an unusual weather pattern called an omega block that promises daily chances for strong storms and flooding. What's behind this pattern and how much ...

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

A weather pattern shaped like a Greek letter is to blame for the various rounds of stormy weather in North Texas of late.

Find out whether flooding or severe storms are possible where you live this week as an uncommon phenomenon known as an omega ...

An "omega block" is expected to form from California ... the Southern Plains into the Ohio Valley on May 2, stretching from Texas into southern Pennsylvania. The greatest risk will exist from ...

Severe storms and heavy rainfall are expected across the state early this week as the omega block looms over the United States. Portions of West Texas and far eastern New Mexico could see large ...

It will also trigger severe thunderstorms in Texas. The pattern is called an omega block, and its effects will be felt throughout the first full week of May. Here's what we know about its ...