03/13/2024, 3:49 am EDT

March 2024 Marine Heatwave/ENSO Discussion and Outlook

Using a different approach to analog ENSO phase for 2024, Climate Impact Company takes a look at the peak ocean heat east of the Dateline late in the year of the ongoing El Nino compared to the loss of upper ocean heat as El Nino weakens the following February.
03/08/2024, 5:33 am EST

Record Warm Tropical South Atlantic Index/El Nino Inspired Hot/Dry Summer Most of Brazil

The tropical South Atlantic continues to observe record warm ocean temperatures. The influence on summer climate of the anomalous warmth was significant. Strong difluence in the upper atmosphere across the warm water zone represents anomalous convection (thunderstorm activity). To compensate for the rising air motion, an area of subsidence (sinking motion) over South America was observed during meteorological summer. The sensible weather result was drier and hotter than normal climate across much of Brazil. Of course, El Nino also enhanced this climate anomaly.