DFW experiences first 100 degree day of the year.

DFW Airport in North Texas recorded its first 100-degree day of the year on Sunday, with the heat index reaching as high as 114. The National Weather Service has issued a heat advisory through Tuesday, with high temperatures expected to hit 102 degrees on Monday, 104 degrees on Tuesday and Thursday, and 105 degrees on Wednesday. People are urged to take precautions to stay safe in the heat, such as drinking plenty of fluids, staying in air-conditioned buildings, and avoiding strenuous activity.