This Environmental Phenomenon Will Actually Blow Your Mind
These weren't even categorized until 2009.
These clouds have confused and amazed researchers for years. They're called "undulatus asperatus" and they'll have you wondering if you're caught in a storm or submerged under water.
Until 2009, they weren't officially recognized by the Cloud Appreciation Socitety, but earlier this year they rolled in over Lincoln, Nebraska and luckily for us someone captured them in beautiful high-definition.