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 congested atmospheric pattern known as an "omega block" is expected to set up across the country by late this weekend. The jet stream will flow like the Greek letter omega from California to New ...

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 ...