Saharan dust returns to the Coastal Bend

Afternoon heat indices 105 to 109 degrees
Posted at 2:33 PM, Jul 01, 2020
and last updated 2020-07-01 20:25:51-04

CORPUS CHRISTI, Texas — The Saharan Aerosol Layer (SAL), commonly referred to as Saharan Dust, has returned to South Texas.

Along with it will be hazy skies, which could produce eye and lung irritation.

Upper-level high pressure will keep sweltering heat and humidity in place through the weekend, with no rain chances.

The SAL is associated with very dry air between 5,000 and 20,000 feet above ground level, which when combined with upper level high pressure disallows any chance of meaningful precipitation.

These conditions also combine to trap low-level Gulf moisture and create heat indices of between 105 and 109 degrees through early next week.

As the SAL fades over the weekend, skies will become mostly clear, but expect afternoon temperatures in the middle 90s.

The high shifts into the Desert Southwest early next week, allowing a slight break from the heat.

It will also allow a weak upper level disturbance and deeper moisture to bring isolated showers on Tuesday and Wednesday.