First Alert Weather August 31, 2023 5:41 am Blue supermoon delights over Philadelphia NBC10 First Alert Weather meteorologist Bill Henley explains what the blue supermoon is all about. US & World Videos 1:22 Swoop swoops into Bill Henley's Eagles home opener First Alert Weather report 1:33 Shorecast: High rip current risk 2:27 Tracking wildfire smoke, weekend showers 2:53 Wonderful stretch of weather for the weekend 3:18 Tornado watch canceled for the rest of Friday