This pattern disrupts typical west-to-east jet stream flow, causing stagnant weather conditions, including cool, showery weather in the East and West, and mild, clear conditions in the north ...

A rather unusual weather pattern for early May 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 ...

A common upper-air pattern seems to be coming a few weeks early. It could be the sign this particular weather pattern will be worked off by the end of May. Right now we have what we meteorologists ...

It can't be seen with the naked eye, but a curious weather pattern in the upper level atmosphere above the continental United States is forecast to generate unsettled weather and some big ...