Lightning is most common and potentially dangerous during electrical storms, which typically occur during rainy conditions. During a thunderstorm, moisture in the air can increase atmospheric conductivity, making it easier for lightning to form and propagate. However, in dry climates or during periods of prolonged drought, lightning can be especially dangerous due to the lack of moisture in the soil, which can increase the risk of wildfires and other lightning-related events. In summary, although lightning is most common during rainy storms, it can be just as dangerous in dry conditions due to the potential for fires and other associated hazards.

Exploring the probabilities

In terms of probability, lightning is more common in areas where there is a combination of humidity and atmospheric instability, as occurs during electrical storms. Therefore, in general, regions with more humid climates and during seasons of the year when more storms occur (such as summer in many parts of the world) tend to have a higher incidence of lightning.

However, in areas where there are long periods of drought, such as arid regions or during dry seasons, although lightning strikes may be less frequent, the risk of fires caused by lightning increases considerably. In such cases, a single lightning strike can easily start a forest fire that can spread quickly due to the dry vegetation.

Therefore, while the likelihood of lightning can vary depending on local weather conditions, it is important to be aware of the dangers associated with both wet and dry conditions when it comes to lightning.

Lightning experiment results

Without the specific details of the experiment you are referring to, I will offer some guesses about possible outcomes based on typical lightning-related experiments:

1. **Atmospheric conductivity:** The experiments may have investigated how different atmospheric conditions, such as humidity, temperature, and air composition, affect atmospheric conductivity and, consequently, the probability and intensity of lightning.

2. **Lightning Formation:** Researchers may have studied the physical and electrical processes involved in lightning formation, using laboratory simulations or computer modeling to better understand how lightning develops under different conditions.

3. **Lightning effects:** Experiments may have examined the effects of lightning on materials, structures, and living organisms, assessing damage caused by direct and indirect lightning strikes, as well as secondary effects such as forest fires, damage to electrical infrastructure, and environmental impacts.

4. **Protective measures:** The effectiveness of lightning protection measures such as lightning rods and protection systems in buildings, electrical equipment and industrial installations may have been investigated.

5. **Fire prevention:** In areas prone to lightning-caused wildfires, experiments could have explored strategies to prevent and fight fires, including monitoring, early detection, and fire suppression techniques.

These are just a few areas where lightning-related experiments may have been conducted, and the results may vary depending on the specific goals of each study and the environmental conditions in which they were conducted. If you have more details about the specific experiment, I may be able to provide a more precise answer.