Houston under heat alert as power outages affect millions in Texas

As officials and residents begin to recover from the deadly storm, they face sweltering heat Tuesday as a combination of sunny skies and lingering humidity will push heat index values ​​up to 106℉ in southeast Texas, including Houston, where hundreds of thousands are without power, according to the National Weather Service.

Live Updates: Beryl recovery begins as heat threatens; millions without power; at least 8 dead

What is a heat advisory?

According to the National Weather Service, a heat advisory is issued within 12 hours of the onset of dangerous heat conditions. Nationally, heat advisories are typically issued when the maximum heat index is expected to be in the triple digits for at least two days.

Texas is no stranger to heat, with heat advisories in the Lone Star State typically calling for a heat index above 108℉. However, current conditions in Southeast Texas are adding risks to that heat. About two million customers along the Central and Upper Coast and in East Texas were left without power or air conditioning.

Safety Tips: Stay Cool Without Electricity

It is important to follow safety precautions during a heat advisory, especially when there is no electricity to run air conditioning. Excessive heat poses higher risks to vulnerable populations, such as young children and infants, older adults, people with chronic illnesses, and pregnant women.