Do we see lightning or hear thunder first in thunderstorm weather? Why?

During a thunderstorm, why do you see lightning first and then hear thunder? Although lightning and thunder are produced at the same time, light travels much faster than sound, so when it thunders, you first see lightning and then hear thunder. Thunderstorms often occur in summer, and when it rains, lightning and thunder are earth-shattering. We know that when the electric field between the positive and negative charge areas in a thunderstorm cloud is large enough, the two charges will be neutralized to generate sparks, and strong light will be generated during the spark discharge, which is lightning. High temperature is generated in the path of light, which makes the surrounding air suddenly expand due to intense heating, and cloud droplets suddenly vaporize and expand due to high temperature, making a huge noise. This is thunder. Lightning and thunder happen at the same time, so why do we always see lightning first and then hear thunder? This is because light travels much faster than sound. Sound is only 340 meters per second in the air, while the speed of light propagation in the air is 300,000 kilometers per second, which is 900,000 times the speed of sound! Generally, the time for light to travel from the place where lightning occurs to the ground is only a few hundred thousandths of a second, but it takes a long time for sound to run this distance. So, you will see lightning first and then hear thunder. According to this common sense, we can use the time of seeing lightning and hearing thunder to calculate how far the discharge cloud is from us. Sometimes I only see lightning, but I can't hear thunder. This is because the discharge cloud is too far away from us or the thunder is not loud enough. When it spreads, its energy is getting smaller and smaller.