Exploring Nature in the San Francisco Bay Area

The Beauty of an Atmospheric River

The forecast calls for big rain this weekend from an "atmospheric river," a plume of moisture stretching thousands of miles across the Pacific and splashing onto land right smack on the Northern California coast.

Crowd-sourcing the Weather

Today, the online weather forecasting site Weather Underground is launching a new crowd-sourced forecasting system that creates custom forecasts for thousands of personal weather stations across the country, including dozens in the Bay Area.

With Rain Comes Life, and Death

After three years of drought, the forecast for a wet El Nino winter this year is welcome news indeed. Unless you're an oak or tanoak tree. Researchers fear a wet year could mean an epidemic spread of sudden oak death (SOD). But a new preventive treatment and easy precautions could help contain the disease.