Think flash mob, but substitute the "mob" for dozens of hungry diners – and it's supposed to happen in Philadelphia Thursday.
It's called "Diner en Blanc," a group of people who register to receive a last-minute invitation to an impromptu fine-dining experience.
Organizers in Philadelphia were expecting hundreds of diners for Thursday night's event.
Diners do not know where they will be dining until the last minute.
According to the group's website, there are dozens of similar events held around the world, from Vancouver to San Diego.
Organizers say the last-minute dining experience brings diners from different backgrounds together to enjoy a city's public space.
According to Diner en Blanc, the effort was launched with just a handful of people more than 20 years ago. The group now boasts entertaining nearly 15,000 people each year.
Winter Weather Advisories take effect for our northwestern countines Sunday afternoon through early Monday morning. Snow will overspread the area from south to north Sunday afternoon.
The snow will bring light accumulations of 1-3" before mixing with sleet and rain by evening. Eventually the mix will become all rain.
Rain lingers into Monday morning washing away any accumulation. However, watch for icy roads Sunday night.