Another Atmospheric River: Storm Chronology Details, Flood Watching, Strong Wind Warning

Just days after an atmospheric river flooded the Bay Area, another one set its sights on the region.

Here’s what you need to know about the impending storm system.

Storm related coverage

When will it rain in the Bay Area?

According to the National Weather Service, the atmospheric river could appear late on Monday, with rain continuing into Tuesday.

What are the possible consequences of a storm?

The weather service said the storm could cause the following:

• Massive floods (flooding of rivers, flooding of streets, flash floods)
• Shallow mudflows, rockfalls and landslides, as well as mudflows
• Rapid rise in streams, streams and rivers
• fallen trees
• power outages
• Dangerous driving conditions and road closures

Flood announcement posted

The Bay Area will be monitored for flooding from Monday evening to Wednesday morning. Flood watching means that flooding is possible.

“The soils are VERY saturated with water, making us very prone to flooding from Monday night and Tuesday storms,” the weather service said.

Strong wind warning issued

The Bay Area will also have a strong wind warning from Monday evening to Wednesday morning.

Wind gusts in the valleys can reach 40 to 50 mph, according to the meteorological service. Along the coast, on coastal hills, and above 1,000 feet, wind gusts can reach speeds of 55 to 70 miles per hour.

How much precipitation will fall in the Bay Area?

This storm is forecast to bring 1 to 3 inches of rain in the valleys and 3 to 7 inches of rain in the coastal mountains.

Below is a more detailed overview of how much rain can fall from Monday evening to Wednesday morning, thanks to the weather service.

• Cloverdale: 2-3 inches
• Santa Rosa: 1.5-2 inches
• Napa: 2-3 inches
• Concord: 1-1.5 inches
• San Francisco: 1.5-2 inches
• Livermore: 1-1.5 inches
• Half Moon Bay: 1.5-2 inches
• San Jose: 1-1.5 inches
• Santa Cruz: 2-3 inches
• Gilroy: 2-3 inches
• Salinas: 1-1.5 inches
• Monterey: 1.5-2 inches
• Big Sur: 3-4 inches

How to prepare for a possible flood

The weather service advises people to do the following if there is a possibility of flooding:

• Pack a “travel bag” to quickly evacuate
• Have insurance information at hand
• Have spare supplies at home in case roads are closed or power outages last several days.
• Plan for the needs of your pets
• Stock up on essential medicines
• Sign up for your county’s 911 back notifications

Use the interactive radar to track the storm

Track the storm using our interactive weather radar below.

Track power outages at PG&E

Track power outages at PG&E with the interactive map below.