A Bomb Cyclone is Driving an Atmospheric River to California. Here's What That Means

What is a bomb cyclone?

A bomb cyclone is a rapidly intensifying low-pressure system that forms over the ocean. It is characterized by a central pressure that drops by at least 24 millibars in 24 hours. Bomb cyclones can produce high winds, heavy rain, and snow. They can also lead to coastal flooding and erosion.

What is an atmospheric river?

An atmospheric river is a narrow corridor of concentrated moisture in the atmosphere that transports water vapor from the tropics to higher latitudes. Atmospheric rivers are often associated with heavy rain and flooding.

How are bomb cyclones and atmospheric rivers related?

Bomb cyclones can create atmospheric rivers by drawing moisture from the tropics. The moisture is then transported by the strong winds associated with the bomb cyclone. When the moisture reaches higher latitudes, it condenses and falls as rain or snow.

What are the impacts of bomb cyclones and atmospheric rivers?

Bomb cyclones and atmospheric rivers can have a significant impact on the areas they affect. The strong winds can cause damage to buildings and infrastructure. The heavy rain and snow can lead to flooding and mudslides. Coastal flooding and erosion can also occur.

What should you do if you are in an area that is affected by a bomb cyclone or atmospheric river?

If you are in an area that is affected by a bomb cyclone or atmospheric river, you should take the following precautions:

• Stay indoors and away from windows.
• If you must go outside, wear protective clothing and avoid driving through flooded areas.
• Be aware of the risk of flooding and mudslides.
• Listen to local news and weather reports for updates.