Winter Storm Fortis on December 29, 2016. (NASA/Aqua/MODIS) At a Glance Winter Storm Fortis brought heavy snow and strong winds to much of New England.Lake-effect snow will persist through Friday in the Great Lakes snowbelts on the backside of Fortis.Thundersnow was reported in the Boston and Portland, Maine, metro areas Thursday evening. Winter Storm Fortis clobbered portions of New England with heavy snow and gusty winds on December 28-30. Maine was particularly hard hit with heavy snow and high snowfall...