Super El Niño: Mid-September Update

Published on September 25, 2026

Super El Niño: Mid-September Update

There is a 98% chance El Niño will be very strong this fall and winter. A strong El Niño can make winter weather in California more intense, but not every place will be hit the same.

 

Possible problems (not guaranteed):

Heavy rain that can cause street flooding

Mudslides on steep hills, especially near burned areas

Big waves and coastal flooding during high tides

 

Simple ways to get ready for the upcoming weather:

Clear your storm drains and gutters

Have flashlights and batteries

Plan for power outages

Check weather alerts often

 

This information from the National Oceanic and Atmospheric Administration was provided by the Bay Area National Weather Service.

 

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