Foggy Peruvian Valleys

EarthzineWeather

Marine stratocumulus clouds that frequently develop off the coast of Peru occassionally move inland, filling the valleys with a thick fog.

How likely is a white Christmas?

EarthzineWeather

This map at shows the historic probability of there being at least 1 inch of snow on the ground in the Lower 48 states on December 25. Dark gray shows places where the probability is less than 10%, while white shows probabilities greater than 90%. Image via NOAA