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-central U ...

Add Yahoo as a preferred source to see more of our stories on Google. An omega block pattern will bring threats of flooding rain to the Plains and Northeast, and some weird temperature maps across the ...

An “omega block” weather pattern is forecast to set up across the country this weekend, possibly bringing some May snow. Here's what it will mean for you. The Weather Channel is forecasting a ...

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 ...