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, ...

Add Yahoo as a preferred source to see more of our stories on Google. SHREVEPORT, La. (KTAL/KMSS) – It appears that the influence of upper-level high pressure is beginning to increase over the ...

Get ready for a very wet end to April. The pattern setting up is called a “Cut Off Low.” It’s a deep low pressure system which will be detached from the general West-East flow of the atmosphere.

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 ...