“East tropical Pacific ocean is starting to cool, indicating a regime shift in the tropics and starting a cold ENSO phase,”says reader Martin Siebert.”It will very likely boost the #Hurricane season strength and have a major impact on the #Winter of 2020/2021.”
What is “ENSO”?
ENSO is short for “El Niño Southern Oscillation”. There are many ways to describe it, but the best version is probably from the NOAA Climate page:
“El Niño and La Niña are the warm and cool phases of a recurring climate pattern across the tropical Pacific – the El Niño-Southern Oscillation, or “ENSO” for short. The pattern can shift back and forth irregularly every two to seven years, and each phase triggers predictable disruptions of temperature, precipitation, and winds. These changes disrupt the large-scale air movements in the tropics, triggering a cascade of global side effects.”
Below we have an example of each event, the warm El Nino phase in 2015, and the cold La Nina phase in 2011. Graphics show sea surface temperature anomalies. We can see warmer/colder waters in the tropical Pacific in the ENSO regions.
Thanks to Martin Siebert for this link
“Covid won’t be the worst thing what’s happened!” says Martin. “No food (or less food) and there will be more diseases. It will get worse! :-/”