Summary
Satellite images have shown a long stretch of fog, called "tule fog," over California's Central Valley from late November to early December. This fog is a type of radiation fog, which forms in low wind conditions and persists due to thermal conditions. Heavy rain earlier in the season and a stable weather pattern helped the fog stick around.
Key Facts
- A 400-mile-long fog, known as "tule fog," has been appearing over California's Central Valley.
- The fog is a type of radiation fog, which forms during calm, clear nights.
- NASA's Terra satellite captured images of the fog using specialized instruments.
- The fog has been seen between Redding and Bakersfield, and sometimes spread toward San Francisco Bay.
- Heavy rain in autumn and stable high-pressure weather helped keep the fog in place.
- Tule fog in the Central Valley is known for being particularly thick from October to February.
- California's Death Valley recorded record rainfall in November, contributing to the wet conditions.
