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Dark clouds hang over downtown San Francisco, with the Transamerica Pyramid visible beneath the overcast sky.

Prepare For Winter Weather

El Niño wet weather is forecast for San Francisco through March 2027. El Niño weather can bring cold, flooding, high winds, fallen trees, and potential power outages. The following resources can help you, your medical facility, and your community prepare for and respond to El Niño weather events.

El Niño wet weather resources:



National Resources:


National Weather Service

State of California Resources:

California Governor's Office of Emergency Services (CalOES)


California Department of Public Health (CDPH)


Ready California Listos

City and County of San Francisco Resources:


San Francisco Department of Emergency Management (DEM)

San Francisco Department of Public Health (SFDPH)

PG&E

To Report Flooding or a Down or Damaged Tree

  • Call 3-1-1, or use the SF311 mobile app. A San Francisco Department of Public Works or Public Utilities Commission crew will be dispatched.
  • Report storm drain flooding
  • Report fallen/damaged tree

San Francisco Public Utilities Commission (SFPUC)


San Francisco Homelessness and Supportive Housing (HSH)

The Port of San Francisco

San Francisco Office of Small Business

San Francisco Controller