![doppler radar mexico and southwestern united states doppler radar mexico and southwestern united states](https://www.safetravelusa.com/images/weather/temp.png)
According to NASA scientists, June 2023 was the hottest June on record. Temperature records have been shattered throughout the U.S., China, and southern Europe. The extreme heat has affected more than just the Southwest. “There is a close relationship between how hot the surface is and the depth of the heat dome,” said Kahn, “and this particular system has extended high into the atmosphere for weeks on end.” Heat domes occur when strong, high-pressure atmospheric conditions trap sweltering heat over large areas. Kahn noted that a ridge of high pressure-or a heat dome-has spread across the southern U.S. “The duration and extent of this heat wave has been mind-boggling,” said Brian Kahn, an atmospheric scientist at NASA’s Jet Propulsion Laboratory (JPL).
![doppler radar mexico and southwestern united states doppler radar mexico and southwestern united states](https://1.bp.blogspot.com/_FYWSP-bbSpc/S9I_guR2DoI/AAAAAAAAAEE/Q3pJYT5nwCw/s320/16.gif)
As of July 27, El Paso, Texas, had suffered for 42 consecutive days at or above 100☏ (38☌), which was 19 days longer than its previous record set in 1994. As of July 26, Phoenix had endured 27 days with maximum temperatures exceeding 110☏ (43☌), shattering the previous record of 18 days in a row, recorded in 1974. The desert Southwest is known for its heat, but the duration of the recent extreme temperatures has far surpassed previous records. On this day, measurements from a weather station in Phoenix, Arizona, recorded 119☏, topping the daily air temperature record by three degrees. The darkest reds indicate temperatures of more than 113☏ (45☌). The map represents temperatures at about 6.5 feet (2 meters) above the ground at about 2 p.m. The map was produced by combining satellite observations with temperatures predicted by a version of the Goddard Earth Observing System (GEOS) model, which uses mathematical equations to represent physical processes in the atmosphere. The map here shows air temperatures across the Southwest on July 25, 2023.
![doppler radar mexico and southwestern united states doppler radar mexico and southwestern united states](https://winknews.com/wp-content/uploads/2022/06/Screen-Shot-2022-06-20-at-2.30.08-PM.png)
Blistering temperatures have lingered in the region for more than three weeks, contributing to delayed air travel and heat-related deaths. An unprecedented streak of extreme temperatures scorched the southwestern U.S.