heat wave July 21, 2022 4:27 pm Heat Health Emergency Issued In Philadelphia Through Weekend A Code Red and health emergency have been put in effect for the first time this year in Philadelphia. NBC10 reporter Frances Wang tells us what that means. US & World Videos 3:20 First Alert remains in effect this weekend 2:20 Triple digit feel-like temperatures across Philly region 2:30 Hot and humid, chance of strong storms Thursday evening 2:54 Feeling like triple digits with chance for storms 2:27 Dangerously hot conditions force Philly into heat advisory for Thursday