California is facing yet another major storm as an atmospheric river approaches, putting the state at risk of flooding and flash floods. The latest storm is part of a series of powerful weather systems that have battered both the West and East Coasts of the United States over the past week.

According to reports from Axios and Yahoo News, the storm is expected to batter both coasts with high winds and heavy rain. In California, a flood watch and wind advisory has been issued in Mendocino County through Tuesday evening. The county already experienced heavy flooding and landslides in recent days, and the incoming storm is set to make conditions even worse.

CNN reports that the storm is expected to bring heavy snowfall to mountains and passes in California’s Sierra Nevada range. This could cause dangerous conditions for residents and travelers.

The Wall Street Journal is reporting that the storm is being caused by an atmospheric river, which is essentially a long, narrow band of moisture in the air. These rivers can bring large amounts of precipitation over a wide area, causing flooding and other hazards.

Overall, the latest storm is posing significant risks to residents and travelers in California and other affected areas. Emergency responders are urging people to take the necessary precautions and prepare for potentially dangerous conditions.