NOAA Climate Prediction Center

The NOAA Climate Prediction Center (CPC) is currently tracking one of the largest La Nina events ever recorded. It could have a big impact on California weather this winter. Although it is not an exact science yet, the CPC long-term winter outlook for California is to be cold over the State and dry (mostly in Southern California). In the past, snow pack leading to drought conditions the following summer. The conditions that we are experiencing this fall are typical of a La Nina event. Another characteristic of La Nina events is that the summer comes earlier during La Nina.

For more information and maps
NOAA Climate Prediction Center