Tule FogPosted: February 27, 2013
Tule fog is a thick ground fog that settles in the San Joaquin Valley and Sacramento Valley areas of California’s Great Central Valley. Tule fog forms during the winter and early spring (California’s rainy season) after the first significant rainfall. The official time frame for tule fog to form is from November 1 to March 31. This phenomenon is named after the tule grass wetlands (tulares) of the Central Valley.
Tule fog near Bakersfield, from wiki, which reports:
Motor vehicle accidents caused by the tule fog are the leading cause of weather-related casualties in California.
The word, by the way, is pronounced “tooly,” not “tool” as I long believed.
First observed by this author while he searched for the site of the Mussel Slough gunfight.