![Can volcanic eruptions cause El Niño? Maybe, maybe not](/sites/default/files/MtPinatubo_480x320_0.jpg)
Not a Mad Lib! Our blogger lays out some of the evidence for and against the notion that volcanic eruptions can trigger El Niño.
![Zooming in on some of NOAA’s latest seasonal hurricane forecast research](/sites/default/files/ENSO_Blog_Fig3_Observed_Rotator_480x320.png)
NOAA scientists are using advances in global climate modeling to improve our ability to make seasonal predictions of Atlantic hurricane activity.
![April 2020 ENSO Update: Alternative Communication](/sites/default/files/New%20Group_480x320_Rotator.png)
The ENSO team goes virtual in bringing you the latest outlook across the tropical Pacific Ocean.
![Grading the 2019-2020 Winter Outlook](/sites/default/files/WinterOutlook_VerificationPredictedObserved_2020_Rotator480x320.jpg)
How did the 2019-20 Winter Outlook do? Pretty darn good if you ask us! Learn just how good in our yearly verification post.
![March 2020 ENSO update: puzzle time](/sites/default/files/ENSO%20BLOG_ERSST_March_2020Rotator.png)
Our blogger discusses current conditions in the tropical Pacific and why forecasters favor ENSO-neutral through the summer.
![Meet ENSO’s neighbor, the Indian Ocean Dipole](/sites/default/files/IOD_oissta_animation_Jul-Dec-2019_480x320_0.jpg)
There’s more than just ENSO in the tropical climate neighborhood. Our blogger discusses an Indian Ocean climate pattern that had an important impact on Australia’s catastrophic 2019 bushfire season.
![February 2020 ENSO update: mind reading](/sites/default/files/ENSO-Blog_2_12_2020_Rotator480px.png)
The surface of the tropical Pacific has been warmer than average for a few months now, but ENSO-neutral conditions are still in place. Our blogger takes a journey into the mind of an ENSO forecaster. It’s her own mind, but that still counts.
![The polar vortex is going to make you put on a sweater. Be afraid. Be very afraid.](/sites/default/files/ENSO-Blog_Jan-_22_2020_Polar-VortexMap_rotator.png)
Kidding. Here's why the polar vortex may also cause you to take off your sweater sometimes.
![A visit to the zoo: climate patterns that can precede ENSO](/sites/default/files/ENSOblog_ENSOprecursors_map_480x320.jpg)
Some oceanic and atmospheric patterns can give us an early heads-up that El Niño might be on its way.
![December 2019 ENSO update: neutral, rinse, repeat](/sites/default/files/ENSO_12_12_2019_rotator_480x320.png)
ENSO-neutral is expected to last through spring 2020. See why in our latest ENSO blog and stay for some ENSO trivia.