The HMS image in the top left shows a large area of medium density in the southwest Gulf of Mexico with light smoke extending into Texas. This was likely due mostly to seasonal burns in Mexico and Central America. The image also shows many small plumes in the southeastern US. The origin of these are currently unknown. In addition to the the smoke in Mexico and Texas, there also appears to be a great deal of dust in those areas as well (VIIRS, top right). The dust's origin is unknown but likely comes from the Chihuahua Desert. Despite the dust and smoke, AQI remained moderate in the US through the entire day on the 2nd of April (AirNow, bottom).