On 12-13 August, a large sandstorm was observed by Meteosat-5 over the Afghanistan and Pakistan desert.
21 October 2020
12 August 2002
The storm lasted two days, covering an area the size of Ireland. The origin of the sandstorm was located in the Iran-Afghanistan border area, where strong surface winds from the north-west raised huge amounts of sand and dust particles several hundred meters into the air.
13 August, 09:00 UTC
Red Arrows: ECMWF forecast wind vectors at 850 hPa for 13 August, 12:00 UTC
The two images below show the area of interest on two different days: before the sandstorm (left image, 11 August) and during the sandstorm (right image, 13 August). The differences in the reflectivity are clearly visible.
The image sequence above (composed of 21 visible images taken between 03:00 and 13:00 UTC) shows the movement the of sand/dust cloud, first in a south-easterly direction, around a mountain range, and then towards the north-east. It probably reached as far as the city of Kandahar. On the southern side of the sandstorm huge eddies can be observed.
The image sequence below (composed of 15 visible images taken between 03:00 and 10:00 UTC) shows the sandstorm on the previous day. A second sandstorm following the Amu Darya river and eventually blowing against the Tajikistan mountains, can be observed in the north-eastern part of the images.
Geldingadalir eruptions affect cloud microphysics
Altered cloud microphysical structure above Geldingadalir eruptions, April 2021.
Major eruption of La Soufrière volcano
Major eruption of the Caribbean volcano La Soufrière in early April 2021.
Tropical cyclone Seroja undergoes Fujiwhara effect
TC Seroja consumed an unnamed tropical storm in April 2021.
Major dust outbreaks - Africa, Middle East & China
Meteosat-8 spots series of dust outbreaks in March 2021.
Spotting Etesian winds in solar imagery using moonglint
Etesian winds spotted in the solar spectrum in Feb 2021.