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
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
ETNA2023-08-13 19:29:55Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2023-08-13 19:26:20Aviation Color Code: YELLOWDOWNLOAD PDF
STROMBOLI2023-08-13 07:55:34Aviation Color Code: ORANGEDOWNLOAD PDF
STROMBOLI2023-08-12 08:53:08Aviation Color Code: ORANGEDOWNLOAD PDF
STROMBOLI2023-08-09 08:16:01Aviation Color Code: ORANGEDOWNLOAD PDF
STROMBOLI2023-08-08 19:53:27Aviation Color Code: ORANGEDOWNLOAD PDF
STROMBOLI2023-08-07 07:01:27Aviation Color Code: ORANGEDOWNLOAD PDF
STROMBOLI2023-08-06 18:48:03Aviation Color Code: ORANGEDOWNLOAD PDF
STROMBOLI2023-08-06 11:39:35Aviation Color Code: ORANGEDOWNLOAD PDF
STROMBOLI2023-08-06 05:41:04Aviation Color Code: ORANGEDOWNLOAD PDF
STROMBOLI2023-08-03 07:37:56Aviation Color Code: ORANGEDOWNLOAD PDF
STROMBOLI2023-08-02 15:23:39Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2023-07-18 19:58:08Aviation Color Code: GREENDOWNLOAD PDF
ETNA2023-07-18 18:59:28Aviation Color Code: YELLOWDOWNLOAD PDF
ETNA2023-07-14 20:05:08Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2023-07-14 19:34:55Aviation Color Code: YELLOWDOWNLOAD PDF
ETNA2023-06-08 00:56:17Aviation Color Code: GREENDOWNLOAD PDF
ETNA2023-06-07 23:00:01Aviation Color Code: YELLOWDOWNLOAD PDF
ETNA2023-05-30 16:02:23Aviation Color Code: GREENDOWNLOAD PDF
ETNA2023-05-30 11:40:17Aviation Color Code: YELLOWDOWNLOAD PDF
ETNA2023-05-24 15:15:15Aviation Color Code: GREENDOWNLOAD PDF
ETNA2023-05-24 11:06:14Aviation Color Code: YELLOWDOWNLOAD PDF
ETNA2023-05-24 00:11:45Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2023-05-23 23:43:03Aviation Color Code: YELLOWDOWNLOAD PDF
ETNA2023-05-23 08:51:41Aviation Color Code: GREENDOWNLOAD PDF
ETNA2023-05-23 06:40:59Aviation Color Code: YELLOWDOWNLOAD PDF
ETNA2023-05-22 04:01:08Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2023-05-21 07:37:35Aviation Color Code: REDDOWNLOAD PDF
ETNA2023-05-18 15:51:06Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2023-05-18 10:42:54Aviation Color Code: YELLOWDOWNLOAD PDF
ETNA2023-05-14 16:30:38Aviation Color Code: GREENDOWNLOAD PDF
ETNA2023-05-14 07:02:52Aviation Color Code: YELLOWDOWNLOAD PDF
ETNA2023-05-07 09:48:49Aviation Color Code: GREENDOWNLOAD PDF
INDIETROAVANTI