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 ...

This week will kick off with more rain chances due to a blocking pattern across the country. An omega block pattern occurs when two low pressure systems, usually cut off from the jet stream ...

It's almost guaranteed to arrive in the coming days thanks to the development of an "omega block" pattern over the United States. The pattern describes a type of flow in the upper air, and it gets ...

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 ...

Heavy rainfall with accumulations of an inch to 3 inches also are possible. An “omega block” weather pattern, so named for its resemblance to the Greek letter Ω, is influencing the unsettled ...

This "rex block" pattern that has been in place this weekend disrupts the normal flow of westerly winds, preventing weather systems from moving eastward as they normally would. This has kept a low ...

Similar conditions are in store for this upcoming week as an Omega Block formation sets up across the U.S. High pressure over the Upper Midwest will be stuck between an upper-level low over the ...