Why is it important to be cautious in the first half hour after rain starts?

Being cautious in the first half hour after rain starts is crucial primarily because of the way rain interacts with the road surface. When it begins to rain, water mixes with the oil and debris that have accumulated on the road, creating extremely slippery conditions. This mixture reduces traction, significantly increasing the risk of skidding and accidents, especially for drivers who are not prepared for the sudden change in road conditions.

During this time, the road can become more hazardous until enough rain washes away the oil and debris, allowing for safer driving conditions. Being aware of this helps drivers to adjust their speed and driving habits accordingly, prioritizing safety during this vulnerable period. Understanding the nature of slippery roads after rain is key to maintaining control over the vehicle and ensuring a safer driving experience.