A large dust cloud from Africa’s Sahara Desert keeps blowing into Texas, and the thickest part of the cloud is now here in Houston.
Satellite imagery shows the cloud stretching 5,000 miles from Africa across the Atlantic and into Texas.
Meteorologists are monitoring the latest NASA projections that predict the flow of this dusty air. The expectation is to see an increase in the dust tonight and Saturday, keeping the sky a hazy gray all day.
So what does it mean for you?
Meteorologist Travis Herzog says most of these fine dust particles will stay suspended thousands of feet above ground, turning the sky a hazy gray. For most of you, that’s the only difference you’ll notice, but some of you may encounter respiratory issues.
A portion of this microscopic dust, known as particulate matter, does reach the ground and can penetrate deep into our lungs. According to the U.S. Geological Survey, studies have shown chemical contaminants and microorganisms can also survive the trek across the Atlantic, but few studies have been conducted on the impact to human health.
Sensitive individuals with asthma, allergies, and other lung conditions may notice flare ups over the weekend, especially after prolonged outdoor exposure. Other sensitive groups include the elderly, young children, and pets. If you are concerned about the impact to your health, consider limiting your time outside over the weekend, especially Saturday.
Travis says the dust cloud will thin out starting Sunday, with noticeable improvements by July 4th as Gulf moisture generates thunderstorms to help clean out the air.
There is a seasonal cycle to when African dust clouds can reach Houston. Travis says they normally track through our sky in May, June, and July.
