Rope cloud feeding into Tropical Invest 98L
![](https://cimss.ssec.wisc.edu/satellite-blog/images/2021/09/GOES-16_ABI_RadF_true_color_2021265_150020Z.png)
GOES-16 True Color RGB images [click to play animation | MP4]
The hazy Saharan Air Layer was also seen in a Suomi NPP VIIRS True Color image at 1439 UTC, as visualized using RealEarth (below). The west-to-east oriented rope cloud was located around 11-12 N latitude.
The “Saharan Air Layer” (SAL) Split Window Difference product from the CIMSS Tropical Cyclones site (below) depicted the westward advance of the dusty SAL air off northwestern Africa.