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
ETNA2020-05-22 03:21:03Aviation Color Code: REDDOWNLOAD PDF
ETNA2020-05-19 16:21:26Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2020-05-12 15:23:20Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2020-05-09 08:23:19Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2020-05-08 14:55:39Aviation Color Code: REDDOWNLOAD PDF
ETNA2020-05-05 15:30:25Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2020-04-28 14:31:44Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2020-04-21 15:46:07Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2020-04-19 11:59:06Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2020-04-19 07:24:12Aviation Color Code: REDDOWNLOAD PDF
ETNA2020-04-14 16:53:23Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2020-04-07 17:20:06Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2020-03-31 14:58:19Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2020-03-24 13:50:35Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2020-03-17 17:22:48Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2020-03-10 21:52:35Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2020-03-03 18:14:36Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2020-02-25 16:00:52Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2020-02-18 13:19:30Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2020-02-11 15:23:10Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2020-02-04 17:36:23Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2020-01-28 17:04:29Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2020-01-21 16:29:51Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2020-01-14 17:27:56Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2020-01-07 16:45:27Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2019-12-31 22:46:06Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2019-12-24 08:14:23Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2019-12-17 16:05:27Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2019-12-10 17:08:01Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2019-12-03 15:42:34Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2019-10-19 10:27:35Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2019-10-19 06:29:12Aviation Color Code: REDDOWNLOAD PDF
ETNA2019-10-18 10:44:32Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2019-10-17 06:33:12Aviation Color Code: REDDOWNLOAD PDF
ETNA2019-10-16 09:24:14Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2019-10-16 05:52:28Aviation Color Code: REDDOWNLOAD PDF
ETNA2019-10-12 10:16:17Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2019-10-12 07:06:07Aviation Color Code: REDDOWNLOAD PDF
ETNA2019-10-11 16:26:22Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2019-10-11 04:49:07Aviation Color Code: REDDOWNLOAD PDF
ETNA2019-10-10 16:46:07Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2019-10-10 09:34:29Aviation Color Code: REDDOWNLOAD PDF
ETNA2019-10-06 16:53:41Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2019-10-05 09:21:30Aviation Color Code: REDDOWNLOAD PDF
ETNA2019-10-02 06:31:05Aviation Color Code: ORANGEDOWNLOAD PDF
INDIETROAVANTI