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A dangerous wave of storms to bring heavy rain, life-threatening flooding, and mudslides to already saturated West Coast


West Coast businesses must be prepared for dangerous and possibly historic storms that will bring heavy rain and the risk of life-threatening flooding and mudslides.

Key Highlights

Threats: Heavy rain, snow, flash life-threatening flooding, mudslides, power outages

States affected: CA, OR, WA

When: Friday, January 6 - Tuesday, January 10


AccuWeather's expert meteorologists are keeping a close eye on dangerous storms aiming for the West Coast that could bring heavy rain and the potential of life-threatening flooding and mudslides. 

The first in a series of storms will bring heavy rainfall to Northern California Friday into Saturday evening. The heavy rain will bring the risk of localized flooding and mudslides in the coastal ranges north of San Francisco and the northern Sierra Nevada.

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A second storm will move into California late Sunday and stay until Tuesday. This extreme and potentially historic storm will bring up to 8 inches of rain to coastal ranges and the Sierra Nevada with an  AccuWeather Local StormMaxTM of 14 inches. Along with the rain, feet of snow are expected in elevations above 6,500 feet.


The already saturated ground and the upcoming heavy rain can result in surging water levels on streams and rivers. The rainfall will test the levee systems and dam spillway capabilities. There is the potential for significant, life-threatening flash flooding and mudslides.


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Businesses in these areas should keep an eye on this system and should: 

  • Identify hazards most likely to impact your location & cause business disruptions. 
  • Take steps to minimize inventory loss due to flooding from torrential rain. If your warehouse is in a low-lying area, you should take precautions.
  • Expect ground logistics disruption from drifting snow, flooded roads, downed trees, and power outages due to road closures.


You can reduce liability, increase safety, and substantially reduce the risk of injury to your employees and customers by subscribing to AccuWeather's severe warning services. Our service is the most accurate such service available, with more lead time on average than all other sources. 

We have saved over 10,000 lives and prevented injuries to over 100,000 people. As a business, our unique and proven service will allow you to reduce your risk of reputational harm from many perils and even reduce your insurance premiums. 

Serving more than half of Fortune 500 companies and thousands of businesses globally, AccuWeather is recognized as the most accurate source of weather forecasts, warnings, and data in the world.

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Be proactive with AccuWeather's SkyGuard® Warnings, which will deliver site-specific alerts and offer warnings well before severe weather hits, giving you much-needed time to be prepared. 

Benefits of SkyGuard® Warnings: 

  • Proactive, site-specific alerts offer warnings well before severe weather impacts occur
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  • All alerts are delivered via push notification from the SkyGuard mobile app, available on Android and iOS

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