Atmospheric River Bringing Heavy Rain to Southern California and Heavy Snow to the Sierra Nevadas

A strong atmospheric river will continue heavy rain over southern California through Friday. The heaviest rainfall is ongoing today in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall has begun over the Sierra Nevada Mountains and will continue through Friday. Travel will become increasingly difficult over the passes due to snow and strong winds. Read More >

Fall 2021 featured warmer than average temperatures and varying amounts of precipitation across the region. Precipitation was below average in northwest Wisconsin, and generally above or around average in northeast Minnesota. Snowfall up to December 1 was below normal, but after the early December storm, that trend has reversed for some areas.

The CPC is forecasting equal chances to above average probabilities for warmer than normal temperatures and precipitation. This may lead to further drought improvements across the region.