Showing posts with label how are tornados formed. Show all posts
Showing posts with label how are tornados formed. Show all posts

Monday, 25 February 2019

What everyone must know about TORNADO|| Tornado ottawa

If you belong to the USA, you must be pretty much familiar with the term tornado, yes the USA is a country which has witnessed numerous tornadoes over the period of years, and if you don't, bear with  me I will make you understand this.


If you belong to the USA, you must be pretty much familiar with the term tornado, yes the USA is a country which has witnessed numerous tornados over the period of years, and if you don't, leave it upon me I will make you understand this.

If you belong to the USA, you must be pretty much familiar with the term tornado, yes the USA is a country which has witnessed numerous tornados over the period of years, and if you don't, leave it upon me I will make you understand this.

TORNADO 

We all have seen those whirling funnels termed as a tornado, whether on Tv or internet, with its high angular velocity as well as linear velocity, a tornado is one more add on a weapon in nature's arsenal. I am gonna discuss how they are formed.



How are tornadoes formed

  • A Tornado is a violently rotating column of air, extending from thunderstorm to ground, the most violent tornadoes capable of destruction have a speed around 300 miles per hour.
  • Most tornados are born from a thunderstorm, you need warm, moist air from the Gulf of Mexico and cool dry air from Canada when these two air masses meet it creates instability in the atmosphere
  • Change in wind direction and an escalation in wind speed with Increment in height creates a horizontal spinning effect in the lower atmosphere, lifting air in the updraft bends the rotating air from horizontal to vertical.
  • An area of rotation 2-6 m wide, now extends through much of the storm, most violent tornadoes are formed from this strong area of rotation.abudant low-level moisture is required to form tornadoes and thunderstorm clouds with which most tornadoes are associated.
  • A trigger is needed to lift the moist air aloft, once the air begins to rise and become saturated, it will continue rising to great heights to produce a thunderstorm cloud, if the atmosphere is unstable.
  • Tornadoes usually form in areas where winds at all level of the atmosphere, are not only strong but also turn with height in a clockwise direction.

Tornado Facts:


  • Damage paths of tornadoes can be in excess of 1 mile wide and 50 miles long.
  • A tornado may appear nearly transparent until dust and debris are picked up or cloud forms within a funnel.
  • Tornadoes are most likely to occur between 3 pm and 9 pm but can occur at any time.
  • The winds of a tornado can reach up to 480 kmph, that's strong enough to peel the roofs off houses, uproot trees and hurl heavy objects, such as cars for hundreds of meters.
  • Tornadoes come in different shapes and sizes.some may appear as wind funnel-shaped clouds others as a thin rope like swirls stretching from ground to the sky.
  • The duration of tornadoes and the distance they travel varies.most last less than 10 minutes and travels up to 5 to 10 km, in extreme cases however they can last several hours and travel up to 150 km.
  • Tornadoes are measured in the Fujita scale from F0 to F5, with F5 being the most destructive and strongest
  • Formation of tornadoes is so complex that scientist is yet to completely understand it, which makes them very unpredictable.
  • Most destructive tornado ever recorded was in Bangladesh in 1989, it traveled through Dhaka vanishing 20 villages and killing 1300 people.
  • Most of the world's the tornadoes occur in the US, what's known as tornado alley, from west Texas to North Dakota, this area sees 200 tornados each year.



Tornado Alley:

  • In the US there are two regions with a high frequency of tornadoes, Florida is one and US alley in south central US is other, Florida has numerous tornados simply due to a high frequency of thunderstorms daily.
  • Several tropical storms and hurricane impact the Florida peninsula each year, when this tropical system moves ashore, connective systems in rainbands often produce a tornado, despite being violent in nature these tropical thunderstorms produce weaker tornadoes than non-tropical ones.
  • Tornadoes in this region occur between late spring to early fall.strong to violent tornadoes are rare and do not happen outside the US.
  • Tornado alley is ideally situated for the formation of supercell thunderstorms, often producer of F2 or greater scale. around 77 % of the tornadoes of the US are of the scale F0 or F1, and 95% of the tornadoes are below F3 scale.
  • The remaining percent of tornadoes are of the violent type, very few of them (around 0.1 percentage of the total are of F5 type), meaning if 1000 tornados hit the US, 20 will be destructive and 1 will be incredible. 

If you belong to the USA, you must be pretty much familiar with the term tornado, yes the USA is a country which has witnessed numerous tornados over the period of years, and if you don't, leave it upon me I will make you understand this.

Tornado Warning:

  • Tornado Warning is an alert issued by national weather forecasting agencies to warn the public that severe thunderstorms are imminent.
  • It can be issued after the thunderstorm, a funneling cloud is spotted by the public, storm chasers or emergency management. if this happens emergency sirens start blowing if there is any, informing people that tornado is formed or taking form.
  • Issuance of such warning warrants from residential to take emergency action, if its a higher level of alert than a tornado watch, it can be surpassed by even higher alert known as a tornado emergency.
  • The criteria which called for tornado alerts now generally result in a tornado warning with verbiage that warning was issued because the rotation was detected.
  • Tornado alerts were eliminated outright due to the advent of Doppler radars which can spot the formation of cloud earlier than usual weather experts. Radars also removed confusion about the strength and location of the storm.

Tornado Ottawa:

  • 2018 tornado outbreak was a two-day outbreak in the US and Canada, a total of 37 tornadoes were confirmed including long-tracked EF3 that moved along 38 km path from Ontario to Gatineau and EF2 in the appeal of Ottawa.
  • Ottawa tornado was declared one of the 10 most significant weather events of 2018 in Canada, numerous tornadoes hit down in Minnesota on the initial day including high-end EF2 that caused major damage in Morristown.
  • The most significant tornado of made a direct strike on a small community of Dunrobin in the west Ottawa then crossed the Ottawa river, then struck the mont blue residential area in hull sector.
  • The Dunrobin-Gatineau is considered as a high end long tracked Ef3 with pick winds reaching 265 kmph, approximately 25 people were injured, six were taken to a hospital and 5 was incurred life threating injury.

You can check tornado pictures here: https://www.google.com/search?q=tornado+pictures&source=lnms&tbm=isch&sa=X&ved=0ahUKEwjhgPWPpNfgAhUHbo8KHY6FD6oQ_AUIDigB&biw=1366&bih=657

You can see amazing tornado videos here: https://www.youtube.com/results?search_query=tornado+videos


If you belong to the USA, you must be pretty much familiar with the term tornado, yes the USA is a country which has witnessed numerous tornados over the period of years, and if you don't, leave it upon me I will make you understand this.

A movie based on the tornado is given in below link :

https://www.youtube.com/watch?v=FZct14zZtUg

CRUX :

  • With tremendous speed and long span tornado can turn houses ,vehicles,humans and every sort of thing into debris ,though they are frequent in but not limited to USA , since long history they have been damaging, their unpredictable nature make them even more dangerous ,for readers of USA and Canada I would say stay safe, stay alert and for others I would say you can have breather.
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