An upper level low is low pressure that starts higher up in the atmosphere. Imagine you're in a 10 story building and low pressure typically starts on the 5th floor. In the case of an upper level low, ...

A winter storm that will likely not quite reach “bomb cyclone” status is nonetheless bringing messy weather to the eastern ...

Fall has arrived in southern Colorado, and that means stronger low pressure systems are beginning to impact the region. We often talk about low pressure systems bringing rain, but how exactly do they ...

A low-pressure weather system moving in from the Pacific is likely to bring rain to metro Phoenix over the weekend, May 31-June 2. A pattern shift in the weather system is expected to drop ...

A congested atmospheric pattern known as an "omega block" has brought extreme downpours and thunderstorms to parts of the U.S. over the past week, with flood warnings issued Wednesday (May 7) for the ...

Rainy weather patterns often setup in D.C. Metro and sometimes the blame points to an upper level low pressure system. Sounds like a lot of science jargon that may have you scratching your head, but ...