The sweeping pattern that's now influencing much of the USA's weather is called an omega block because of its resemblance to the Greek letter.

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

The current stretch of fantastic weather is due to a pattern that resembles a Greek letter. Our current weather pattern is ...

Flooding in Texas has already turned deadly earlier this week, when a 10-year-old girl was swept away in rising waters.

The Omega Block is slowly, very slowly, shifting east, northeast ward; however, it’s such a slow shift that we will continue to see the summerlike conditions (minus the humidity) stick around through ...

WGN-TV Chief Meteorologist Demetrius Ivory joins Lisa Dent to discuss what determines a selfie, his upcoming wager with weather producer Bill Synder, and what an omega block is. Then, Ivory ...

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 ...

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 ...

Since last week we've been discussing this pattern that would lead to a rather repetitive pattern for this week and possibly even into next week as well.A block ...

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

A Texas child was found dead Tuesday after she was swept away by floodwaters Monday as other teams raced to extinguish a fire ...

A weather pattern bringing severe weather across Texas has caused thousands to lose power. See our power outage map.