This Lab Can Make It Snow – Inside

(via Popular Science)  Sprawled over several buildings, McKinley Climatic Laboratory at Eglin Air Force Base is the largest indoor-weather testing facility in the world It can conjure nearly any meteorological hazard: ice storms, corrosive fog, driving rains (up to 27 ­inches per hour), 165-degree heat, jungle humidity, and ­40-mile-per-hour sandstorms.