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
ETNA2024-08-20 16:29:11Aviation Color Code: ORANGEDOWNLOAD PDF
STROMBOLI2024-08-16 18:36:19Aviation Color Code: ORANGEDOWNLOAD PDF
STROMBOLI2024-08-15 19:09:16Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2024-08-15 04:19:38Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2024-08-14 23:51:21Aviation Color Code: REDDOWNLOAD PDF
ETNA2024-08-14 22:52:34Aviation Color Code: REDDOWNLOAD PDF
ETNA2024-08-14 17:16:13Aviation Color Code: REDDOWNLOAD PDF
ETNA2024-08-13 18:06:02Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2024-08-04 11:18:14Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2024-08-04 09:01:19Aviation Color Code: REDDOWNLOAD PDF
ETNA2024-08-04 03:42:21Aviation Color Code: REDDOWNLOAD PDF
ETNA2024-08-04 02:45:08Aviation Color Code: REDDOWNLOAD PDF
ETNA2024-07-23 09:06:14Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2024-07-23 07:28:33Aviation Color Code: REDDOWNLOAD PDF
ETNA2024-07-23 02:59:25Aviation Color Code: REDDOWNLOAD PDF
ETNA2024-07-22 20:44:17Aviation Color Code: REDDOWNLOAD PDF
ETNA2024-07-16 04:27:02Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2024-07-15 19:45:10Aviation Color Code: REDDOWNLOAD PDF
ETNA2024-07-15 19:16:07Aviation Color Code: REDDOWNLOAD PDF
ETNA2024-07-14 16:29:07Aviation Color Code: ORANGEDOWNLOAD PDF
STROMBOLI2024-07-12 09:14:36Aviation Color Code: ORANGEDOWNLOAD PDF
STROMBOLI2024-07-11 12:30:59Aviation Color Code: REDDOWNLOAD PDF
ETNA2024-07-11 06:00:52Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2024-07-10 23:58:00Aviation Color Code: REDDOWNLOAD PDF
ETNA2024-07-07 10:28:41Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2024-07-07 02:57:13Aviation Color Code: REDDOWNLOAD PDF
ETNA2024-07-07 01:32:55Aviation Color Code: REDDOWNLOAD PDF
ETNA2024-07-07 00:28:39Aviation Color Code: ORANGEDOWNLOAD PDF
STROMBOLI2024-07-05 07:25:17Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2024-07-05 05:44:37Aviation Color Code: ORANGEDOWNLOAD PDF
STROMBOLI2024-07-04 15:43:29Aviation Color Code: REDDOWNLOAD PDF
ETNA2024-07-04 15:31:59Aviation Color Code: REDDOWNLOAD PDF
STROMBOLI2024-07-03 18:47:40Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2024-06-29 17:21:14Aviation Color Code: ORANGEDOWNLOAD PDF
STROMBOLI2024-06-24 08:26:31Aviation Color Code: ORANGEDOWNLOAD PDF
STROMBOLI2024-06-23 12:27:23Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2024-06-17 18:25:35Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2024-06-17 18:16:09Aviation Color Code: YELLOWDOWNLOAD PDF
STROMBOLI2024-05-29 07:38:18Aviation Color Code: ORANGEDOWNLOAD PDF
STROMBOLI2024-05-27 11:58:13Aviation Color Code: ORANGEDOWNLOAD PDF
STROMBOLI2024-05-24 23:07:51Aviation Color Code: ORANGEDOWNLOAD PDF
STROMBOLI2024-05-24 07:22:10Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2024-04-16 08:37:35Aviation Color Code: GREENDOWNLOAD PDF
ETNA2024-04-12 17:00:32Aviation Color Code: YELLOWDOWNLOAD PDF
ETNA2024-04-09 08:18:40Aviation Color Code: ORANGEDOWNLOAD PDF
INDIETROAVANTI