Weather – Tornadoes
A large thunderstorm occurs in a cumulonimbus cloud
A change in wind direction and wind speed at high altitudes causes the air to swirl horizontally
Rising air from the ground pushes up on the swirling air and tips it over
The funnel of swirling air begins to suck up more warm air from the ground
The funnel grows longer and stretches toward the ground
How does a tornado start and end?
A tornado forms from a large thunderstorm. Inside thunderclouds, warm, humid air rises, while cool air falls–along with rain or hail. These conditions can cause spinning air currents inside the cloud. Although the spinning currents start out horizontal, they can turn vertical and drop down from the cloud–becoming a tornado.
New research suggests that tornadoes form not from the clouds down, but from the ground up.
Our chosen answer is winds inside the waterspout can be faster than 100 kilometres per hour, and they can do great damage to boats Waterspouts are in some ways like the tornadoes that form over land.
You could be asking “Does all spinning air make a tornado?”
Air that spins as it rises is typical in supercells, the strongest type of thunderstorm, but not all spinning air creates a tornado. For a tornado to form, there also needs to be spinning air near the ground. This happens when air in the storm sinks to the ground and spreads out across the land in gusts.
What are the signs before a tornado?
Signs that a twister is coming include: Dark greenish skies., and large hail. Dark, rotating, low-altitude cloud. Loud roar, like a train. Despite the fact that meteorologists are now better able to predict them, tornadoes can strike with little warning. Therefore, it’s best to be prepared well before a tornado approaches.
For a tornado to form, there also needs to be spinning air near the ground. This happens when air in the storm sinks to the ground and spreads out across the land in gusts. Gusts of warmer air rise as they blow. Gusts of cooler air sink as they blow across the land.
Let us dig a little deeper. these weather ingredients are: warm, moist air;an unstable atmosphere; andwind at different levels moving in different directions at different speeds, a phenomenon known as wind shear .
What can you do to stop tornadoes?
Steps to reduce tornado damage. Make an inventory of your possessions. If your belongings are damaged, this list will help your home insurance company facilitate the claim filing process. Properly repair roofs, install impact-resistant patio doors, stiffen double-wide doors, meet building codes, install good windows, install strong garage doors, and strengthen entry doors are a couple additional items to think about.
A question we ran across in our research was “Why is it so hard to see tornadoes?”.
Because wind is invisible, it is hard to see a tornado unless it forms a condensation funnel made up of water droplets, dust and debris. Tornadoes can be among the most violent phenomena of all atmospheric storms we experience. What we do: Read more about NSSL’s tornado research here. Where do tornadoes occur?
You might be asking “What to do at a tornado?”
• If you’re driving, don’t try to outrun a tornado. Take shelter in a location with an interior room, a gas station or a grocery store. Avoid sheltering under bridges, which offer little protection against flying debris.