Saharan Air Layer
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.
Dust plumes propagate westward over the tropical Atlantic Ocean with the Low Level Jet Stream. This creates both speed shear and drying over the Atlantic Ocean and Caribbean.
Date: Friday, March 22nd, 2019
Warning: A dense plume of dust is predicted to affect the Eastern Caribbean over the weekend. People with respiratory problems and allergies are advised to take necessary precautions.
Impact: Possible respiratory problems and reduced
This is based on satellite imagery and model guidance.
Satellite Image showing approaching dust plume
Dust Prediction For Friday
Dust Prediction For Sunday