Unfortunately I'm not there at the moment, but this morning thunder-snow struck Rome, dumping between 1 and 5 cm (depending on area of the city). Accumulations would have been much more if heavy rain had not soaked the ground before the event. Here is a selection of youtube videos and photos! Enjoy! Oh and by the way it snowed with a -4.5 at 850 (taking into consideration that Rome is 25km away from the warm Mediterranean sea!)
(a bit less at the Coliseum because of the massive urban heat island)
http://www.meteogiornale.it/notizia/17310-1-24-anni-dopo-roma-di-nuovo-sotto-la-neve