This example presents a reusable scatter plot built with D3 that visualizes weather observations from a CSV dataset. The plot maps visibility, temperature, humidity, and wind speed onto x and y axes, with each point rendered as a distinct SVG path shape according to the weather summary. The scatter plot uses D3's `scaleLinear`, `extent`, `axisLeft`, and `axisBottom` to construct the axes and map data values. A `setInterval` function dynamically cycles the x-axis variable every two seconds, demonstrating the chart's reusability. The data loads asynchronously via `d3.csv` and the plot itself is defined as a reusable function following the Towards Reusable Charts pattern.