Record-Breaking Heat Wave To Scorch South America As Unusually Mild Winter Gives Way To Developing El Niño

South America, especially Brazil, will experience extreme heat this week with highs over 110F possible.
It caps off an unusually mild winter across parts of South America.
The heat is tied to a high pressure dome and developing El Niño conditions.
Many locations in the southern hemisphere saw exceptional warmth this winter.
September 2023 is on pace to be the hottest on record globally.

washingtonpost.com

Relevant topic timeline:

7/28/2023

The hottest days of the year are here for the Northeast as the South continues to bake

Main Topic: Heat wave and record-breaking temperatures in the United States and globally Key Points: 1. Almost 150 million people in the US are under a heat alert, with blistering temperatures affecting the southern half of the country. 2. Several cities, including Phoenix and El Paso, are experiencing prolonged streaks of extremely high temperatures. 3. The heat wave is not limited to the US, as July is on track to become the hottest month ever recorded globally, with record-setting land and water temperatures.

7/30/2023

As Phoenix hits 30 days over 110, expected monsoon rains could help cool the Southwest

Main Topic: Historic heat wave in the U.S. Southwest begins to abate with the arrival of monsoon rains. Key Points: 1. Metro Phoenix experiences 30th straight day of temperatures above 110 degrees Fahrenheit. 2. Monsoon thunderstorms bring relief but also pose risks of damaging winds, blowing dust, and flash flooding. 3. Heat wave extends to other areas, including Las Vegas, Albuquerque, Death Valley, and parts of California, with potential for wildfires and triple-digit temperatures.

7/31/2023

Intense summer heat relaxes for some, but parts of the South continue to bake

Main Topic: Intense heatwave in the US Key Points: 1. Heatwave subsiding in some areas, but millions still under heat advisories in the South. 2. Record-breaking streaks of high temperatures in El Paso and Phoenix coming to an end. 3. Heat shifting to southern Plains and Gulf Coast, with high temperatures expected to be well above average for much of the workweek.

8/7/2023

Another week of heat ahead for millions across the U.S.

Main Topic: Heatwave and severe storms in the United States Key Points: 1. About 70 million people are under heat alerts due to record-breaking temperatures in the U.S. South. 2. Extreme heat is expected to continue in cities across the southern Plains, particularly in New Mexico, Texas, and Louisiana. 3. The Northeast is at risk for severe storms, including damaging winds, heavy rain, and potential tornadoes.

9/10/2023

Earth Breaks Warming Records in 2023 as El Niño Fuels Unprecedented Heat

The year 2023 is likely to become the warmest on record, as global temperatures in July and August reached the Paris Agreement target of 1.5 degrees Celsius above pre-industrial levels for the first time, and data shows that the year-to-date global temperature is just 0.01C behind the current record holder, 2016.

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Posted 9/21/2023, 4:50:20 PM