The decrease in lightning coincided with a drop in human activities that send aerosols into the atmosphere.
Meteorologists, oceanographers and snipers have to account for this deformation.
A better understanding of the physics of storm formation may lead to more accurate forecasts.
New Orleans is suffering now, but almost everywhere in the country can experience power problems during extreme weather.
The accuracy of the next season's weather forecast dives every spring, because of the volatility of Pacific Ocean conditions.
A better understanding of past rainfall swings may help scientists better predict future ones.
New research links cloud top appearance to the unusual phenomenon of lightning during a snowstorm.
The finding illustrates the value of regular weather observations made by commercial airplanes.