The Bay Area and most of California have experienced a rollercoaster of active weather patterns over the past few months, from extreme heat to unusual storms and seasonal changes.
These fluctuations have been largely attributed to shifts in two global weather patterns: the Pacific North American Oscillation (PNA) and La Niña. And it looks like the PNA will rule in November. This means that the chances of low pressure systems from the Pacific Ocean bringing wet weather to California will increase over the next thirty days. That would help break the state’s ongoing drought — but not everywhere.