Blizzards are big news, enshrined in Baltimore lore. Like hurricanes, they are recalled by names (Snowmaggeddon, Snowpocalypse) and on sweatshirts: “I survived the blizzard of [year].” Snow sells.

Singer Alex Gaskarth has been touring the world for over 20 years with his band All Time Low. The rock quartet-Gaskarth, guitarist Jack Barakat, drummer Rian Dawson, and bassist Zack Merrick-recently ...