TV stations love to brag about their weather technology. They have the best weather computers, the biggest doppler radar and the greatest weather center on the planet.

But when it comes to predicting the weather, WLKY (Louisville) Meteorologist John Belski says he just needs a hammer, a ruler, and a straight-edged razor blade. This should save the TV station a fortune.   

He explains how simple tools like these help predict the weather.