What Does a Tornado Sound Like

Tornado survivors and witnesses often liken the sound of a tornado to that of a freight train—that is, the noise and vibrations of its wheels against the railroad track and ground. One way to distinguish this sound from ordinary thunderstorm sounds is to notice a loud continuous roar or rumble, that, unlike thunder, doesnt fade in a few seconds.   Rumbles, Roars, and Whirs   While the most common tornado sound is a continuous rumble or roar, a tornado can also make other sounds. What sound you hear depends on several things, including the tornados size, strength, what it is hitting, and how close it is to you. In addition to a constant rumble or low roar, tornadoes can also sound like: A waterfall or whooshing of airA nearby jet engineA deafening roar When a  tornado is tearing through a big city or a heavily populated area, it can produce lots of loud noises simultaneously, making it impossible to hear a particular sound because the sound is so deafeningly loud. Why Tornadoes Are So Loud No matter what sound is heard, most survivors agree on  one thing: the loudness. A  tornados vortex is made up of air thats rotating very rapidly. Think of how loud wind sounds when you are driving down the highway with your car window down, except multiply that by several hundred times. Whats more,  after the tornado reaches the ground, its winds blow through trees, tear apart buildings, and blow debris about—all which adds to the noise level. Natures Alarm Sounds There are other audible sounds to listen for besides a roar that could signal the approach of a tornado. If a severe thunderstorm is occurring, be sure to pay attention to the sound of hail or torrential  rain that suddenly gives way to a dead calm, or is followed by an intense shift in the wind. Because tornadoes typically occur in the  precipitation-free part of a thunderstorm, these sudden changes in precipitation could mean the parent thunderstorm is moving. Tornado Sirens While knowing what a tornado sounds like may help keep you safe should one hit,  you shouldnt rely on the storms sound as your only tornado warning method. Quite often, these sounds can be heard only when the tornado is very near, leaving you little time to take cover. Another sound to take notice of is that of tornado sirens.   Originally designed to warn of air raids during World War II, these sirens have been re-purposed and are now used as tornado warning instruments across the Great Plains, Midwest, and South. Along the East Coast, similar sirens are used to warn of approaching hurricanes and in the Pacific Northwest to warn residents of volcanic eruptions, mudslides, and tsunamis. If you live in or are visiting an area prone to tornadoes, be sure you know what this signal sounds like and what to do when it sounds off. The National Weather Service advises tuning to local media for specific information if you hear a weather siren sounding. You should also register for emergency notifications for your area to be sent to your cell phone and/or home phone.