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:

• Scollo, S., Prestifilippo, M., Bonadonna, C., Cioni, R., Corradini, S., Degruyter, W., Rossi, E., Silvestri, M., Biale, E., Carparelli, G., Cassisi, C., Merucci, L., Musacchio, M., Pecora, E. (2019). Near-Real-Time Tephra Fallout Assessment at Mt. Etna, Italy, Remote Sensing , 11(24), 2987 (2019), https://doi.org/10.3390/rs11242987
• Corradini, S., Guerrieri, L., Lombardo, V., Merucci, L., Musacchio, M., Prestifilippo, M., Scollo, S., Silvestri, M., Spata, G., Stelitano, D (2018). Proximal monitoring of the 2011-2015 Etna lava fountains using MSG-SEVIRI data. Geosciences 2018, 8, 140

VOLCANO	DATE	DESCRIPTION	FILE TYPE
ETNA	2026-08-16 20:15:49	Aviation Color Code: RED	DOWNLOAD PDF
ETNA	2026-08-16 18:49:24	Aviation Color Code: ORANGE	DOWNLOAD PDF
ETNA	2026-08-16 08:42:41	Aviation Color Code: ORANGE	DOWNLOAD PDF
ETNA	2026-08-15 09:21:59	Aviation Color Code: ORANGE	DOWNLOAD PDF
ETNA	2026-08-15 08:52:46	Aviation Color Code: RED	DOWNLOAD PDF
ETNA	2026-08-15 06:29:51	Aviation Color Code: ORANGE	DOWNLOAD PDF
ETNA	2026-08-11 13:00:27	Aviation Color Code: RED	DOWNLOAD PDF
ETNA	2026-08-09 14:19:40	Aviation Color Code: RED	DOWNLOAD PDF
STROMBOLI	2026-08-09 10:11:35	Aviation Color Code: ORANGE	DOWNLOAD PDF
ETNA	2026-08-08 13:52:43	Aviation Color Code: ORANGE	DOWNLOAD PDF
STROMBOLI	2026-08-08 07:54:18	Aviation Color Code: ORANGE	DOWNLOAD PDF
ETNA	2026-08-08 00:18:57	Aviation Color Code: RED	DOWNLOAD PDF
ETNA	2026-08-07 17:52:22	Aviation Color Code: ORANGE	DOWNLOAD PDF
ETNA	2026-08-07 12:05:18	Aviation Color Code: RED	DOWNLOAD PDF
ETNA	2026-08-07 11:06:56	Aviation Color Code: ORANGE	DOWNLOAD PDF
ETNA	2026-08-07 08:59:58	Aviation Color Code: ORANGE	DOWNLOAD PDF
ETNA	2026-08-06 20:32:55	Aviation Color Code: RED	DOWNLOAD PDF
STROMBOLI	2026-08-06 15:28:00	Aviation Color Code: ORANGE	DOWNLOAD PDF
STROMBOLI	2026-08-06 05:51:08	Aviation Color Code: ORANGE	DOWNLOAD PDF
ETNA	2026-08-06 01:19:41	Aviation Color Code: ORANGE	DOWNLOAD PDF
ETNA	2026-08-02 10:45:04	Aviation Color Code: YELLOW	DOWNLOAD PDF
ETNA	2026-07-31 03:43:14	Aviation Color Code: ORANGE	DOWNLOAD PDF
ETNA	2026-07-30 17:32:46	Aviation Color Code: RED	DOWNLOAD PDF
ETNA	2026-07-30 15:43:56	Aviation Color Code: ORANGE	DOWNLOAD PDF
ETNA	2026-07-30 03:33:11	Aviation Color Code: RED	DOWNLOAD PDF
ETNA	2026-07-30 02:24:33	Aviation Color Code: ORANGE	DOWNLOAD PDF
ETNA	2026-07-30 02:07:28	Aviation Color Code: YELLOW	DOWNLOAD PDF
ETNA	2026-07-08 08:59:22	Aviation Color Code: GREEN	DOWNLOAD PDF
ETNA	2026-07-07 20:22:14	Aviation Color Code: YELLOW	DOWNLOAD PDF
ETNA	2026-07-07 07:20:24	Aviation Color Code: ORANGE	DOWNLOAD PDF
ETNA	2026-07-07 02:27:50	Aviation Color Code: RED	DOWNLOAD PDF
ETNA	2026-07-06 03:12:56	Aviation Color Code: RED	DOWNLOAD PDF
ETNA	2026-07-05 06:08:35	Aviation Color Code: RED	DOWNLOAD PDF
ETNA	2026-06-30 17:46:32	Aviation Color Code: ORANGE	DOWNLOAD PDF
ETNA	2026-06-30 07:52:28	Aviation Color Code: ORANGE	DOWNLOAD PDF
ETNA	2026-06-26 11:05:27	Aviation Color Code: ORANGE	DOWNLOAD PDF
ETNA	2026-06-23 08:47:32	Aviation Color Code: ORANGE	DOWNLOAD PDF
ETNA	2026-06-17 07:17:19	Aviation Color Code: ORANGE	DOWNLOAD PDF
ETNA	2026-06-15 07:26:19	Aviation Color Code: ORANGE	DOWNLOAD PDF
ETNA	2026-06-14 09:35:55	Aviation Color Code: YELLOW	DOWNLOAD PDF
STROMBOLI	2026-05-30 08:43:07	Aviation Color Code: ORANGE	DOWNLOAD PDF
STROMBOLI	2026-05-29 22:23:37	Aviation Color Code: ORANGE	DOWNLOAD PDF
STROMBOLI	2026-05-29 15:42:33	Aviation Color Code: ORANGE	DOWNLOAD PDF
STROMBOLI	2026-05-29 08:13:41	Aviation Color Code: ORANGE	DOWNLOAD PDF
STROMBOLI	2026-05-28 17:32:33	Aviation Color Code: ORANGE	DOWNLOAD PDF
		AVANTI