How does a blocking pattern in the atmosphere affect your weather?

Omega block keeps skies clear on Cinco de Mayo, Unsettled pattern kicks in mid-week

Sunday night update: Hey, everyone! The cold front that brought strong to severe storms on Saturday is finally sliding offshore. We're feeling that cooler, drier air settle in, setting the stage for a beautiful start to the work week here in the CSRA. But the big weather story this week involves a large-scale pattern dominating the U.S. called an "Omega block," and it's the reason behind both our upcoming sunshine and the rainy pattern expected …

Nearly ten degrees cooler than normal to start the week

HUNTSVILLE, Ala. (WHNT) -- A cooler air mass is forecast to remain positioned over the Southeast region for the start of the upcoming week. This cooler air will support temperatures nearly 10 degrees cooler than average for this time of year. The cooler temperatures are all thanks to the current weather pattern. Above the surface, a weather pattern known as the "Omega Block" has set up across the United States. The Omega Block looks like the Gre…

Northeast facing flood threats this week due to unusual weather pattern

An "Omega block" is setting up across the US, and forecasters warn that it will lead to a stagnant pattern with prolonged periods of warmth in some areas and steady rain in others.

How does a blocking pattern in the atmosphere affect your weather?

Meteorologist Victoria Wisniewski explains how this impacts your local forecast.