To determine the distance from the center of the storm to the observer, we use the speed of sound and the time it takes for the sound to reach the observer.

Given: Speed of sound in air: \( v = 330 \, \text{ms}^{-1} \), Time delay: \( t = 2 \, \text{s} \)

The distance \( d \) can be calculated using the formula:
\(d = v \times t\)

Substituting the values:
\(d = 330 \, \text{ms}^{-1} \times 2 \, \text{s} = 660 \, \text{m}\)

Therefore, the distance from the center of the storm is 660 m.