Hi everyone, Please find attached an updated one pager briefing on significant early season summer heat and humidity this weekend along with heat index and forecast high temperature graphics. Heat index values are expected to be between 95-102F. In addition, low temperatures overnight Saturday will likely not fall below 70F in urban population centers. *What has changed: *Given increased confidence, Heat Advisories have been issued for most areas away from the immediate coast from Sat 8 AM to Sun 8 PM. See attached hazard graphic for details. Thank you, Rodney Chai and Frank Nocera 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>