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 >

Frost/Freeze Information

When can the region expect its first freezing temperatures in the fall, and its last freezing temperatures in the spring? Check out the below information to find out.

For comprehensive regional frost/freeze information, please visit the Midwest Regional Climate Center.