What is a DANA? The weather phenomenon behind this week’s deadly floods in Spain – CSN News

THE ravaging floodings that have actually ruined a lot of Valencia with awful outcomes have actually been criticized on a luckily reasonably uncommon weather condition sensation called a ‘gota fria’.

Suggesting essentially, ‘chilly decline’ it is likewise called a DANA ( Depresión Aislada en Niveles Altos)

To recognize exactly how a gota fria can be so terrible, one have to initially take into consideration exactly how ‘regular’ winds transpire.

In basic terms, winds are developed where there is a distinction in atmospheric pressure in between 2 locations.

LEARN MORE: Weather condition trouble in Spain’s Valencia: Trains are terminated while roadways and ports are shut as DANA tears down trees and creates flooding

Air steps from chillier high stress locations right into warmer reduced stress locations, high as it does when you open up a home window on a cool day and air hurries right into a warmer space.

The larger the distinction in stress, the quicker the activity of air.

In a similar way, a gota fria is developed by a chillier high stress body of air lowering, as opposed to throughout, onto warmer air.

If hefty storm cloud are resting in between both bodies of air, that rainfall is essentially lowered to planet at high rate– with terrible result.

By Fall, the Mediterranean Sea has actually indulged in the summer season sunlight for lots of months and has actually heated significantly.

It has actually heated a lot that the distinction in heat and stress of seaside air, and the pockets of chillier high-pressure air at elevation, ends up being bothersome with abrupt inundations of substantial quantities of water putting from the skies.

These can bewilder river flooding protections, creating enormous flooding as we have actually seen today with such awful outcomes.

Today this deluge in El Ejido in Almeria was available in the kind of large hailstones, which shattered vehicle home windows and created substantial quantities of damages.

Exactly how to remain secure

Never ever ignore the power of a gota fria, also after the rainfalls have actually quit– water from greater ground is bound to adhere to at a quick price as it discovers its method to the coast.

Households have to stay clear of flooding levels, rivers and ramblas (water drainage gullies).

Stay clear of driving, specifically during the night, and park your vehicle far from wall surfaces, fencings and– certainly– rivers.

Inside, maintain records in a secure, completely dry– and high– location.

Perform routine examine the roofing system, home windows and guttering.

Make sure that an emergency treatment package, lantern and extra batteries come.

If flooding in your house does happen, turn off the power supply.