Volcano Observatory Notices for Aviation (VONA)

Volcano Observatory Notices for Aviation (VONA) are succinct, plain-English messages aimed at dispatchers, pilots, and air-traffic controllers to inform them of volcanic unrest and eruptive activity that could produce ash-cloud hazards.


DISCLAIMER
Using volcanic cloud height data for publication is only allowed if the following papers are cited:
VOLCANO
DATE
DESCRIPTION
FILE TYPE
ETNA2014-07-12 15:03:37Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2014-07-11 16:20:54Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2014-07-10 20:38:25Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2014-07-09 19:27:49Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2014-07-08 19:41:44Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2014-07-06 19:49:22Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2014-07-06 03:18:14Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2014-07-06 00:21:33Aviation Color Code: YELLOWDOWNLOAD PDF
INDIETRO