Here's a problem to solve: On August 21, a flash flood warning was issued for the Las Vegas area. Which statement best describes this warning in terms of weather and climate?

Among the 4 following options, which is the correct answer?

- A: It is a constant climate feature throughout the year.
 
- B: It is a seasonal weather feature with irregular occurrences.
 
- C: It is a continuous weather feature during the season in which it occurs.
 
- D: It is a rare event inconsistent with local climate and weather.
 