When the rain bubbles in a puddle what does that mean?

When rainwater creates bubbles in a puddle, it typically indicates that the raindrops are striking the surface of the water with enough force to displace it, causing air to be trapped and form bubbles. This can also happen due to the interaction of raindrops with debris or impurities in the water, which can create surface tension variations. In essence, bubbling in a puddle signifies the dynamic interaction between the falling rain and the existing water.