It is very unlikely for a car to hydroplane in one-half inch of water. Hydroplaning occurs when a vehicle's tires lose contact with the road surface due to a layer of water between them. It typically happens at speeds of around 50 miles per hour or higher, and the required water depth for hydroplaning to occur is usually several millimeters (more than one-half inch).
In one-half inch of water, most car tires would still be able to maintain traction with the road surface, preventing hydroplaning. While it is possible for hydroplaning to occur in shallower water under specific conditions, such as worn tires or particularly smooth road surfaces, it is relatively rare and unlikely to happen in just one-half inch of water.
