Overview

• South Texas is forecast to experience temperatures between 104–110°F by midweek, with areas near the Rio Grande surpassing 110°F.
• Southern Manitoba is expected to see temperatures peak at 36°C on Tuesday, nearly 19°C above seasonal averages, before a dramatic 30°C drop by Friday.
• The heat wave, caused by a powerful high-pressure ridge, is expanding into the central and southern Plains, Southeast U.S., and Florida.
• Environment and Climate Change Canada and the National Weather Service have issued heat alerts due to the extreme and unseasonal nature of the event.
• Climate change is amplifying the intensity, frequency, and duration of heat waves, with the last decade recording the planet's ten hottest years since 1850.