Bomb Cyclone vs. Atmospheric River: What's Bringing Rain, Snow to Northern California?
What's the Difference Between a Bomb Cyclone and an Atmospheric River?
A bomb cyclone is a rapidly intensifying low-pressure system that forms over the ocean. It is characterized by a central pressure that drops at least 24 millibars in 24 hours. Bomb cyclones can cause high winds, heavy rain, and coastal flooding.
An atmospheric river is a narrow corridor of concentrated moisture in the atmosphere. It is typically hundreds of miles wide and can transport vast amounts of water vapor from the tropics to higher latitudes. Atmospheric rivers can cause heavy rain and flooding.
What's Causing the Rain and Snow in Northern California?
The rain and snow in Northern California is being caused by a combination of a bomb cyclone and an atmospheric river. The bomb cyclone is bringing strong winds and heavy rain to the region, while the atmospheric river is providing the moisture necessary for the precipitation.
What are the Impacts of the Rain and Snow?
The rain and snow are causing widespread flooding in Northern California. The flooding has closed roads, damaged homes and businesses, and forced evacuations. The heavy snow is also causing travel delays and power outages.
The rain and snow are expected to continue for the next several days. The National Weather Service has issued a flood watch for much of Northern California.
How to Stay Safe During the Rain and Snow
If you are in an area that is experiencing flooding, it is important to take precautions to stay safe.
- Avoid driving through flooded areas.
- If you must drive, be sure to slow down and turn on your headlights.
- Be aware of the risk of downed power lines.
- If you see a downed power line, stay away from it and call 911.
- If you are in a flood-prone area, be prepared to evacuate.
Additional Resources
For more information on the rain and snow in Northern California, please visit the following resources:
