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
ETNA2024-04-16 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
ETNA2024-04-02 18:30:08Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2024-04-02 18:16:02Aviation Color Code: YELLOWDOWNLOAD PDF
ETNA2024-03-29 09:59:50Aviation Color Code: GREENDOWNLOAD PDF
ETNA2024-03-29 07:56:32Aviation Color Code: YELLOWDOWNLOAD PDF
VULCANO2024-02-15 10:18:56Aviation Color Code: GREENDOWNLOAD PDF
ETNA2023-12-24 11:13:29Aviation Color Code: GREENDOWNLOAD PDF
ETNA2023-12-23 11:32:24Aviation Color Code: YELLOWDOWNLOAD PDF
ETNA2023-12-23 07:35:10Aviation Color Code: GREENDOWNLOAD PDF
ETNA2023-12-23 01:43:53Aviation Color Code: YELLOWDOWNLOAD PDF
ETNA2023-12-02 12:54:44Aviation Color Code: GREENDOWNLOAD PDF
ETNA2023-12-02 11:36:09Aviation Color Code: YELLOWDOWNLOAD PDF
ETNA2023-12-01 22:38:50Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2023-12-01 18:02:13Aviation Color Code: REDDOWNLOAD PDF
ETNA2023-12-01 17:08:26Aviation Color Code: REDDOWNLOAD PDF
ETNA2023-11-20 23:13:53Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2023-11-20 22:27:04Aviation Color Code: YELLOWDOWNLOAD PDF
ETNA2023-11-20 09:38:21Aviation Color Code: GREENDOWNLOAD PDF
ETNA2023-11-19 17:34:06Aviation Color Code: YELLOWDOWNLOAD PDF
ETNA2023-11-17 10:55:09Aviation Color Code: GREENDOWNLOAD PDF
ETNA2023-11-17 10:43:59Aviation Color Code: YELLOWDOWNLOAD PDF
ETNA2023-11-13 00:34:24Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2023-11-12 14:49:24Aviation Color Code: REDDOWNLOAD PDF
ETNA2023-11-09 17:33:32Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2023-11-09 16:22:18Aviation Color Code: YELLOWDOWNLOAD PDF
STROMBOLI2023-10-10 08:38:08Aviation Color Code: ORANGEDOWNLOAD PDF
STROMBOLI2023-10-08 20:11:45Aviation Color Code: ORANGEDOWNLOAD PDF
STROMBOLI2023-10-07 13:06:51Aviation Color Code: ORANGEDOWNLOAD PDF
STROMBOLI2023-10-07 04:34:20Aviation Color Code: ORANGEDOWNLOAD PDF
STROMBOLI2023-10-06 16:52:52Aviation Color Code: ORANGEDOWNLOAD PDF
STROMBOLI2023-10-06 02:16:47Aviation Color Code: ORANGEDOWNLOAD PDF
STROMBOLI2023-10-04 08:13:02Aviation Color Code: ORANGEDOWNLOAD PDF
STROMBOLI2023-10-03 07:05:13Aviation Color Code: ORANGEDOWNLOAD PDF
STROMBOLI2023-09-28 19:16:53Aviation Color Code: ORANGEDOWNLOAD PDF
STROMBOLI2023-09-27 14:40:35Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2023-08-16 08:12:29Aviation Color Code: GREENDOWNLOAD PDF
ETNA2023-08-15 17:44:51Aviation Color Code: YELLOWDOWNLOAD PDF
ETNA2023-08-15 07:54:17Aviation Color Code: GREENDOWNLOAD PDF
ETNA2023-08-14 21:55:14Aviation Color Code: YELLOWDOWNLOAD PDF
ETNA2023-08-14 12:17:50Aviation Color Code: GREENDOWNLOAD PDF
ETNA2023-08-14 12:15:50Aviation Color Code: YELLOWDOWNLOAD PDF
ETNA2023-08-14 05:54:43Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2023-08-13 20:41:02Aviation Color Code: REDDOWNLOAD PDF
 AVANTI