Sandstorms in the UAE: 9 most frequently asked questions answered

Several alerts for sandstorms were issued all across the country on Sunday, with officials warning the public to take precautions.

The National Centre of Meteorology (NCM) has issued code-red, -orange and –yellow alerts for dusty conditions for most parts of the UAE.

Police forces in the UAE have urged motorists to drive carefully as dusty conditions reduced visibility to less than 500 metres in some areas. They have also reminded motorists not to film the weather condition while driving as this could distract them and cause accidents.

What causes sandstorms?

Sandstorms, also called dust storms, occur when winds strengthen to the point where they're able to lift the loose top layer of sand off the ground and blow them through the air. The wind can take the sand particles along thousands of kilometres.

Why are sandstorms common in the desert?

Sandstorms are common in desert or semi-arid regions, especially during the summer because of the widespread abundance of loose sand.

Forecasters say most of the dust storms that reach the UAE originate in the dried-up marshlands of Kuwait or Iraq, but usually blow themselves out before they reach here.

How big can a sandstorm be?

The size of a sandstorm depends on the strength of the wind. It’s typically 50 feet tall with wind speeds of 25-30 km/hour, however in rare cases they can be up to 100 kilometers wide and several kilometers high. The particles of sand and dust in a sandstorm are between 0.08 mm and 1 mm in size.

A shot from Hollywood spy thriller Mission Impossible: Ghost Protocol shows a blinding sandstorm engulfing Dubai during a chase scene featuring Tom Cruise. However meteorologists in Dubai say the storm shown in the movie is unlikely to occur in Dubai.

What was the worst sandstorm ever?

The worst sandstorm in history occurred in the US on Sunday, April 14, 1935, when a thousand mile-long black blizzard covered the Central Plains making eyewitnesses believe the world was coming to an end.

The storm came to be known as Black Sunday.

In fact, the term Dust Bowl was also coined around that time when an AP reporter used it to describe aftermath of the horrific dust storm.

What are the main hazards of a sandstorm?

Reduced visibility caused by accidents can lead to road accidents. Sandstorms also pose serious health threats.

Hospitals and clinics in Dubai said they see an increase in emergency department visits during dusty weather.

How can sandstorms affect our health?

Sandstorms contain dust particles, which can cause severe health issues when they get past our body’s natural defence mechanisms

“Particles in dust storms are usually coarse and hence don’t cause much health issues to the general public but people with a previous history of breathing issues, especially asthmatic and chronic obstructive pulmonary disease, are at increased risk,” said Dr Saheer Sainalabdeen, specialist, respiratory medicine at Medeor Hospital Dubai.

Did you know? Deserts cover roughly one-third of Earth’s terrestrial surface and are a critical part of the climate system.