The cloudy, rainy and cooler pattern Derby weekend can be explained in two words... omega block! Blocking patterns occurs when centers of high pressure and/or low pressure set up over a region in such ...

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 Pattern.

Add Yahoo as a preferred source to see more of our stories on Google. An “omega block” weather pattern is forecast to set up across the country this weekend, possibly bringing some May snow. Here's ...

The peak rainfall is now behind us on Sunday. As of this writing, we can expect rain to decrease in coverage heading into the afternoon. Nonetheless, it’s going to be blustery and a downright yucky ...

Your current weather may be around awhile. 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 ...

It may only be Tuesday, but we can already say this week is pretty slow and sluggish (at least as far as the weather forecast is concerned). You can thank two rounds of a weather pattern known as a ...

SIOUX FALLS, S.D. (KELO) — It has been a quiet day in KELOLAND with temperatures continuing to stay warm. Meteorologist Jaelyn Borresen has more details on the pattern bringing us this type of weather ...

PORTLAND, Ore. (KOIN) — Sunny and dry conditions will prevail across the Pacific Northwest this weekend with blazing blue skies and no rain to worry about. It’s all thanks to an upper-level ...