Earth's surface temperature in 2021 was 1.87 °Fahrenheit warmer than the 20th-century average.
The Arctic Oscillation (AO) refers to an atmospheric circulation pattern over the mid-to-high latitudes of the Northern Hemisphere. The most obvious reflection of the phase of this oscillation is the north-to-south location of the storm-steering, mid-latitude jet stream.
The Oceanic Nino Index tracks the sea surface temperature in the east-central tropical Pacific Ocean. It is NOAA's primary indicator of the climate patterns known as El Niño and La Niña.
The North Atlantic Oscillation tracks a seesawing of surface pressure between two parts of the North Atlantic. Different phases often bring predictable changes in winds, temperature, and precipitation in the United States and Europe.
Susan Solomon Wins 2009 Volvo Environment Prize
January 15, 2009
The March 2022 climate outlook favors a warmer-than-average month for the eastern/south-central US, a cooler-than-average month for the western/north-central US, and a wetter-than-average month for the Great Lakes.
In a tweet chat featuring four NOAA marine experts, learn about the National Marine Ecosystem Status website, how to use it, and why you should care about the health of marine ecosystems.
One La Niña winter is often followed by another. El Niño winters seldom double-dip. The ENSO Blog explains why.
La Niña's here through winter, but chances for ENSO to transition to neutral by spring are rising.
Breadjerknes feedback.... wait, I'm sorry, I mean *Bjerknes* feedback, and how it helps El Niño and La Niña events to grow.