When she explained to the highway patrolman what had happened he told her something that every driver should know - NEVER DRIVE IN THE RAIN WITH YOUR CRUISE CONTROL ON. She had thought she was being cautious by setting the cruise control and maintaining a safe consistent speed in the rain.
But the highway patrolman told her that if the cruise control is on and your car begins to hydroplane, when your tires lose contact with the pavement your car will accelerate to a higher rate of speed and you take off like an airplane. She told the patrolman that was exactly what had occurred. We all know you have little or no control over a car when it begins to hydroplane. You are at the mercy of the Good Lord. The highway patrol estimated her car was actually traveling through the air at 10 to 15 miles per hour faster than the speed set on the cruise control. The patrolman said this warning should be listed, along with the airbag warning, on the driver's seat sun visor - NEVER USE THE CRUISE CONTROL WHEN THE PAVEMENT IS WET OR ICY. We tell our teenagers to set the cruise control and drive a safe speed, but we don't tell them to use the cruise control only when the pavement is dry.
The only person the accident victim found who knew this (besides the patrolman), was a man who had had a similar accident, totaled his car and sustained severe injuries If you send this to 15 people and only one of them doesn't know about this, then it was all worth it. You might have saved a life.
Another thing to remember is that when it first starts to rain on a Macadam (asphalt)road, the rain and the dry powdered asphalt (that is formed by traffic) will create an emulsion that makes the road very slippery. After it has rained a few minutes, the rain will wash it off. So be careful when it first starts to rain.