Potentially dangerous phenomenon scared Viriath this Saturday. Fire swirls can reach hundreds of meters high and the 1000 ° C. Fires continue to devastate areas of the country.
Among the various impressive images that arrive from the fires that have affected some zones of Portugal, a particular video captured in the parish of Alvitein Moimenta da Beira, district of Viseu, left the country amazed.
In the video recorded by a resident and shared by the meteo brings the hills you can see an authentic tornado from fire to the ground.
Also known as “Fire Swirls”these vertical columns of swirling flames are not, although they seem, the typical tornado.
While the conventional tornado forms through the interaction of hot and humid air near the soil, coupled with atmospheric instability and collision air fronts, the fire tits arise due to rapid rise of hot and dry air From the ground – more or less how dust swirls are formed on hot and very sunny days.
Physically, the phenomenon results from the creation of Hot air “chimneys” They go up until they cool and dissipate at higher altitudes, explains the. When sucked into this upward column, the air begins to rotate and forms a vortex similar to the movement of water in a drain. The effect, governed by the angular moment, causes the rotation to accelerate as the air approaches the center.
In dust whirlpools, the vortex transports sand, leaves and debris; Tornates of fire, the ascending air drags incandescent embers, ashes, hot gases and flammable wreckagecreating this flame tower that can reach hundreds of meters high.
Usually these phenomena last only a few minutes, but are highly dangerous especially for the temperature they can reach: 1000 ºC.
Meteorologists do not forget their threats. In 2000, a fire-watched fire tornado in California jumped a first-handed strip, raised an all-terrain vehicle and threw it against an SUV, hurting a firefighter, remembers the scientific magazine.
Situation point of the country’s fires
This Sunday, both the fireworks in Moimenta da Beira and Trancosoin the guard, they were in resolution, with almost 1300 operational On the ground, according to data published by the National Emergency and Civil Protection Authority (APENPC).
But in the early afternoon, the fire in Trancoso reactivated and mobilizes eight air assets and more than 300 operational, after being circumscribed early in the morning.
“The fire is again active and, at this time, there are no locations at risk, but it is heading towards some isolated places, with dispersed houses,” said the source of the subregional command of Civil Protection Beiras and Serra da Estrela.
Em Villagethere were two fires in Mato with several active fronts, to be fought for about 400 firefightersBut the commanders ensure that the work is favorably.
Eight air and almost 250 Operational fight a fire in forest settlement in Lorvão, Penacovatold Lusa agency source of civil protection.
