What is actually a climatic waterway?

.FOR CALIFORNIANS it seemed like du00e9ju00e0 vu. In 2015 a ceremony of storms, fuelled by climatic waterways, gotten rid of at the very least 21 people and led to nearly $5bn-worth of harm across the condition. On February fourth this year the very same sort of storm again created chaos.

Hurricane-strength winds buffeted the main coast near Major Sur. In Los Angeles personalities were actually saturated as they got to the Grammy honors’ red carpet. Manors in the Hollywood Hills were covered in dirt.

At least three people have passed away. What are atmospheric waterways, and also are they a danger past The golden state?