News
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.
03/11/2024, 9:22 am EDT

Searing Heat Beneath Subtropical Ridge in Brazil/Paraguay

The convection phase of the Madden Julian oscillation (MJO) is located over the Maritime Continent and increasing intensity. The influence on South America climate when MJO is in phase_4 is dryness across Brazil. The latest ECM ENS 15-day upper air forecast indicates the subtropical ridge is parked over Southeast Brazil, strongest over the next 15 days.
03/08/2024, 1:53 pm EST

Warmest U.S. Winter on Record!

The meteorological winter 2023-24 was the warmest on record (Fig. 3). This observation is made more impressive given that there was one arctic outbreak during mid-winter. Warmer than normal mid-latitude SSTA contributed to the already mild bias caused by El Nino. Record warmth was observed in 8 states: North Dakota, Minnesota, Iowa, Wisconsin, Michigan, New York, Vermont, and New Hampshire.
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.