Widespread well-above average temperatures are forecast for portions of the West and north-central U.S. this weekend. Isolated strong to severe thunderstorms and heavy rain will impact west Texas Saturday. The severe weather threat in Hawaii will diminish through the day. Read More >
El Niño/La Niña Information
La Niña Watch
El Niño conditions are fading, with a transition to ENSO-neutral expected during the spring.
La Niña will likely return this summer.
Weekly Update
The Climate Prediction Center (CPC) creates a weekly ENSO summary (with graphics), available in pdf or ppt formats.
Monthly Update - ENSO Diagnostic Discussion
This monthly summary from CPC is also available in pdf and Word formats.
This collaborative blog discusses the latest about El Niño and La Niña.
All About ENSO
An Introduction to the El Niño/Southern Oscillation
The above link provides a basic overview of ENSO (El Niño/Southern Oscillation). Various links to other summaries and tutorials are also provided.
An Explanation of ENSO Indices
Descriptions of various ENSO indices are accompanied by an explanation of how the indices are used to detect/declare an El Niño or La Niña event.
El Niño and La Niña primarily affect the weather during the cold season. What effects does the ENSO phase have on North Texas? Click the Teleconnections link to find out!
Current Data
Various observations, including sea surface temperature animations.
Images of Current Data (from PSL)
Forecasts
Quick Links
Climate Prediction Center (CPC) - El Niño/La Niña Home
► Weekly ENSO Update (available in pdf or ppt)
► Monthly ENSO Diagnostic Discussion (available in pdf or Word)
Climate.gov - ENSO Information
Physical Sciences Laboratory (PSL) - ENSO Information
Pacific Marine Environmental Laboratory (PMEL) - El Niño Theme Page
International Research Institute for Climate and Society (IRI) - ENSO Resources