Four times in the past six years, the Daytona 500 has dealt with rain. Over the past four-plus decades of the race, things were mostly high and dry.

The Daytona 500 carried the sports calendar over the busy Presidents' Day weekend, but the "Great American Race" still suffered a ratings hit. After waiting out a nearly four-hour rain delay, the 41-car field resumed under the lights on Sunday,

Daytona 500 saw a rain delay early in the race. Here's why NASCAR can't race through bad weather at Daytona, plus how they dry the track.