California’s Rainy Season Begins with a Bomb Cyclone Bang. Are we in for a Third Record Wet Winter?

The first major atmospheric river storm to hit the West Coast this season is kicking off the rainy season with a bang, as the system rapidly strengthened — to the tune of a bomb cyclone — before pummeling Northern California and southern Oregon with dangerous winds and heavy rains that could cause disruptions for several days.

Supercharged by that dramatic bombogenesis and warm Pacific temperatures, which together pumped up the system’s winds and moisture, the storm could cause life-threatening flooding and damaging high surf north of the Bay Area, with prolonged, heavy rainfall, strong winds and significant mountain snow, according to the National Weather Service’s Weather Prediction Center.