The New Year Brings Snow to the Southwest

The start to the new year was white for some areas of the southwest United States, as snow fell in southern California, Arizona, and even Las Vegas. An amplified jet stream pattern has allowed much cooler temperatures to reach the southwest region, with a cutoff low working to create necessary lift for precipitation. In Arizona, […]

Fog Fills the Grand Canyon

Thursday, a sea of fog filled the Grand Canyon. This rare phenomenon occurred as a result of total temperature inversion, which is the increase of temperature with height. Cold air was trapped at the base of the canyon and was topped by warm air; enough low-level moisture was available Thursday for fog to develop. Fog […]