Heavy snow that unloaded on Philadelphia on Sunday is being followed by an icy mix.
After a few days of cold in the California Valleys, sunshine will takeover the city this week.
Heavy snow is creating hazardous travel, multiple vehicle crashes and flight delays across the Northeast.
While heavy snow and ice are not expected to fall over much of the Midwest through Monday, some slippery roads and travel disruptions are likely.
As the saying goes, no two snowflakes are exactly alike. Russian photographer Alexey Kljatov's collection of high-resolution magnified flakes makes this widely-held belief more convincing.
Heavy snow from the Washington, D.C., to the Philadelphia area is giving way to an icy mix, while snow and ice spread across more of the Northeast through Monday.
Elkton, MD (1963)
Jet liner exploded near Elkton, MD killing all 81 on board. Lightning is believed to have caused the explosion of residual fuel under one of the outboard wing tanks as plane passed through a vicious thunderstorm.
LaMesa, CA (1938)
100 degrees, warmest ever in US for Dec. Downtown LA had 91.7 degrees, only 90 degree reading in December.