1 in 300,000,000

From the results given by a site that looks up information about a particular name:

According to the US Census Bureau°, 1.038% of US residents have the first name 'Christopher' and fewer than 0.001% have the surname 'Tassava'. The US has around 300 million residents, so we guesstimate there are 0 'Christopher Tassava's.

Forecast: Significant blowing and drifting, with the possibility of heavy accumulation in rural areas.