Overall Green Volcanic eruption for Merapi
in Indonesia

Volcano Ash Advisories for air traffic

Although Volcano Ash Advisories (VAAC) are not intended for assessing humanitarian impact, the observations of the plume are relevant for understanding local impact. The actual impact (like ash fall) depends on the type of eruption and is not known.

Click on the messages list to visualize on the right the detailed text.



Volcanic Ash Advisory issued on 2022-03-28 at 09:58 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • No eruption. Re-suspended volcanic ash to flight level 100 (3000m) move e last observation before a break in coverage at a manual station observation 28 0809 UTC.
  • No eruption. Re-suspended volcanic ash reported by cvghm and observation on webcam. Volcanic ash height and movement based on webcam img and model guidance. Volcanic ash is expected to dissipate 2.

Original Message :

Volcanic Ash Advisory issued on 2022-03-09 at 17:17 UTC.

    Key information extracted from original VAA message :


    Aviation Colour Code :  


  • Volcanic ash eruption to flight level 200 (6000m) move nnw observation at 09 1700 UTC.
  • Volcanic ash eruption reported by cvghm to flight level 200 (6000m) volcanic ash indiscernible on satellite img due to meteorological cloud. Volcanic ash height based on ground report, volcanic ash movement based on model guidance. Advisory will be reissued if new information is received.

Original Message :

Volcanic Ash Advisory issued on 2022-03-09 at 03:52 UTC.

    Key information extracted from original VAA message :


  • Volcanic ash emission observation in satellite.
  • Satellite imagery revealed volcanic ash emission extending apprx 20-25nm e/ene of summit. Webcam curr inop. Little change forecast in winds through t+6 hours based on nwp. Coverdale.

Original Message :