Thundersnow

While I was working on the "Ashes" post last night there was a tremendous clap of thunder. My brother had called about 10 minutes earlier reporting seeing lightning. While thunderstorms are not uncommon in this area, thundersnow is quite rare. This thunder and lightning was associated with a brief but heavy snow squall which turned major highways into a "skating rink" according to the emergency personnel who had abandoned their vehicles to proceed, on foot, to the site of a traffic-blocking accident.