Good morning, There have been no major changes to the forecast since the last briefing. Heat advisories remain in effect until 8 pm tomorrow. Confidence is growing that heat advisory headlines will need to be extended into Saturday, Sunday, and perhaps even Monday for some locations. See the attached one page briefing and supporting graphics for additional details. Thanks and have a great day, Rob Megnia and Matt Belk If you have any questions or would like more information, don't hesitate to contact us via this email address, on NWSChat <https://nwschat.weather.gov/>, or at the following: National Weather Service Boston/Norton, MA 46 Commerce Way Norton, MA 02766 508.622.3280 Website <http://www.weather.gov/boston> | Facebook <http://www.facebook.com/NWSBoston> | Twitter <http://www.twitter.com/NWSBoston>