Saharan dust, also called the Saharan air layer (SAL), is a fleeting visitor to the tropics that makes an appearance during the months of June and July before fading in early August.
It is loaded with harmful elements such as iron, calcium, phosphorous, silicon and mercury, press reports indicate. The Saharan Air Layer (SAL) is an extremely hot, dry and sometimes dust-laden layer of the atmosphere that often overlies the cooler, more-humid surface air of the Atlantic Ocean. There is a moderate to high concentration of Sahara dust in the atmosphere. Saharan Dust, contrary to popular belief, is a year-round phenomenon with several mechanisms for surges beginning in Western Africa, traveling as far west as the United States. Met Office: Watch out for Saharan dust. In the Sahara Desert region of North Africa, where it originates, it is the prevalent atmosphere, extending from the surface upwards several kilometers.
Pinterest. The Saharan Air Layer (SAL) or Saharan Dust is a very dry, dusty layer of warm air that occurs when a dust storm develops over Western Africa in the Sahara Desert and gets blown into the Atlantic Ocean by easterly winds.
It may last for days, coating our screens with rust-colored dust, draining our sunsets of color, and leaving many of us with a sense of malaise.
Saharan dust sweeps over Caribbean .
Home Caribbean Sahara Dust Moving Into The Region February 17, 2020 News784 (NATION NEWS) – People with respiratory ailments are being asked to take precautions this week as a plume of Saharan dust is approaching the region.
How does the Saharan Dust travel? Saharan Dust is a mixture of sand and dust from the Sahara, the vast desert area that covers most of North Africa, according to the UK Met Office. Photo via Meteorological Department of St Maarten, Facebook.
Tuesday 19 May, 2020 Loop market ... Trinidad and Tobago's weather: Saharan dust levels moderate to high . Most islands across the Eastern Caribbean are experiencing good air quality levels, based on U.S. standards as of 3:00 PM Wednesday 29th January 2020. Dust from the Sahara Desert has surged into the Caribbean and may funnel its way toward the Gulf Coast of the United States this weekend, keeping the tropics at bay for the near future.
January 9, 2020 (Trinidad Express) Those with asthma, allergies and cardiac conditions, beware. These plumes of dust regularly move across Trinidad, Tobago, and the Eastern Caribbean reducing visibility and triggering several health impacts.
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Dust from the Sahara Desert has surged into the Caribbean and may funnel its way toward the Gulf Coast of the United States this weekend, keeping the tropics at bay for the near future. As in other parts of the world, the wind can blow strongly over deserts – whipping up dust and sand high into the sky.