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
ETNA2025-02-23 17:55:50Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2025-02-21 10:15:04Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2025-02-18 07:24:30Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2025-02-16 11:11:34Aviation Color Code: REDDOWNLOAD PDF
ETNA2025-02-14 17:01:14Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2025-02-14 07:51:55Aviation Color Code: REDDOWNLOAD PDF
ETNA2025-02-13 09:45:47Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2025-02-12 09:30:17Aviation Color Code: REDDOWNLOAD PDF
STROMBOLI2025-02-10 19:37:00Aviation Color Code: ORANGEDOWNLOAD PDF
STROMBOLI2025-02-10 14:31:09Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2025-02-08 19:19:13Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2025-02-08 19:04:29Aviation Color Code: YELLOWDOWNLOAD PDF
STROMBOLI2025-02-06 14:54:42Aviation Color Code: ORANGEDOWNLOAD PDF
STROMBOLI2025-02-06 07:28:59Aviation Color Code: ORANGEDOWNLOAD PDF
STROMBOLI2024-12-27 18:23:22Aviation Color Code: ORANGEDOWNLOAD PDF
STROMBOLI2024-12-26 19:22:28Aviation Color Code: ORANGEDOWNLOAD PDF
STROMBOLI2024-12-24 10:19:56Aviation Color Code: ORANGEDOWNLOAD PDF
STROMBOLI2024-12-24 06:12:21Aviation Color Code: ORANGEDOWNLOAD PDF
STROMBOLI2024-12-04 10:10:14Aviation Color Code: ORANGEDOWNLOAD PDF
STROMBOLI2024-12-04 01:32:50Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2024-11-20 10:57:43Aviation Color Code: GREENDOWNLOAD PDF
ETNA2024-11-13 21:01:45Aviation Color Code: YELLOWDOWNLOAD PDF
STROMBOLI2024-11-13 09:35:21Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2024-11-11 06:13:34Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2024-11-10 11:06:00Aviation Color Code: REDDOWNLOAD PDF
ETNA2024-11-10 10:46:18Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2024-11-10 10:13:57Aviation Color Code: YELLOWDOWNLOAD PDF
ETNA2024-11-07 15:45:44Aviation Color Code: GREENDOWNLOAD PDF
ETNA2024-11-07 15:44:39Aviation Color Code: YELLOWDOWNLOAD PDF
STROMBOLI2024-11-06 18:29:58Aviation Color Code: ORANGEDOWNLOAD PDF
STROMBOLI2024-11-03 10:53:20Aviation Color Code: ORANGEDOWNLOAD PDF
STROMBOLI2024-11-02 18:12:21Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2024-10-29 13:53:03Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2024-10-21 13:38:28Aviation Color Code: ORANGEDOWNLOAD PDF
STROMBOLI2024-10-10 09:20:18Aviation Color Code: ORANGEDOWNLOAD PDF
STROMBOLI2024-10-09 12:49:28Aviation Color Code: ORANGEDOWNLOAD PDF
STROMBOLI2024-10-09 09:40:32Aviation Color Code: ORANGEDOWNLOAD PDF
STROMBOLI2024-10-08 17:10:02Aviation Color Code: ORANGEDOWNLOAD PDF
STROMBOLI2024-10-06 08:04:20Aviation Color Code: ORANGEDOWNLOAD PDF
STROMBOLI2024-10-06 01:37:06Aviation Color Code: ORANGEDOWNLOAD PDF
STROMBOLI2024-10-02 09:09:38Aviation Color Code: ORANGEDOWNLOAD PDF
STROMBOLI2024-10-01 03:19:45Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2024-09-23 07:45:25Aviation Color Code: YELLOWDOWNLOAD PDF
STROMBOLI2024-09-13 23:34:48Aviation Color Code: ORANGEDOWNLOAD PDF
STROMBOLI2024-08-30 02:02:35Aviation Color Code: ORANGEDOWNLOAD PDF
 AVANTI