For the past couple of days there has been a very extensive and thick
duststorm over a large part of the Sahara. On visible imagery the dust can
be seen spreading in a vast plume out over the Atlantic and southwards over
the Gulf of Guinea.
These images (infra red difference between spectral channels 4 and 5) from
today's noaa19 overpass show the extent of the dust (the white areas on the
images)
http://www.woksat.info/etcsc21/sc21-1221-j-apt-s.html
http://www.woksat.info/etcsc21/sc21-1401-e-apt-s.html



--
Bernard Burton
Wokingham, Berkshire, UK.

Weather satellite images at:
www.woksat.info/wwp.html