Heat dome moves into Texas with record highs expected
The Peninsula
A heat dome that has led to nearly 90 consecutive days of triple digit high temperatures in Phoenix moved into Texas on Wednesday, with high temperatu...
A heat dome that has led to nearly 90 consecutive days of triple-digit high temperatures in Phoenix moved into Texas on Wednesday, with high temperature records expected to fall by the weekend, according to the National Weather Service.
A major heat alert is in place for Texas, reflecting what the weather service called "rare and/or long-duration extreme heat with little to no overnight relief.” An extreme heat alert was issued for eastern New Mexico.
A heat dome is a slow moving, upper-level high pressure system of stable air and a deep layer of high temperatures, meteorologist Bryan Jackson said.
"It is usually sunny, the sun is beating down, it is hot and the air is contained there,” Jackson said. "There are dozen or so sites that are setting daily records ... mostly over Texas.”
Record high temperatures were expected in cities such as Corpus Christi, San Antonio and Amarillo. In Phoenix, monsoon rains have provided brief respites since Sunday, although daytime highs continue to top 100 degrees Fahrenheit (37.8 degrees Celsius).
