Texas’s nighttime temperatures are a symptom of a new, more dangerous kind of heat wave

Forecasters are warning that there is a more dangerous aspect to this heat wave: overnight temperatures are not cooling down enough.

​CNN.com – RSS Channel Forecasters are warning that there is a more dangerous aspect to this heat wave: overnight temperatures are not cooling down enough. 

​Read More Forecasters are warning that there is a more dangerous aspect to this heat wave: overnight temperatures are not cooling down enough.