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
ETNA2021-05-19 01:21:17Aviation Color Code: REDDOWNLOAD PDF
STROMBOLI2021-05-17 12:52:45Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2021-05-11 20:42:08Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2021-04-27 20:20:06Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2021-04-20 14:31:40Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2021-04-13 15:44:49Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2021-04-02 08:42:59Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2021-04-01 12:46:33Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2021-04-01 09:32:18Aviation Color Code: REDDOWNLOAD PDF
ETNA2021-04-01 07:47:35Aviation Color Code: REDDOWNLOAD PDF
ETNA2021-04-01 01:03:05Aviation Color Code: REDDOWNLOAD PDF
ETNA2021-03-31 19:11:08Aviation Color Code: REDDOWNLOAD PDF
ETNA2021-03-30 15:55:12Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2021-03-24 11:50:21Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2021-03-24 07:21:53Aviation Color Code: REDDOWNLOAD PDF
ETNA2021-03-24 03:45:17Aviation Color Code: REDDOWNLOAD PDF
ETNA2021-03-23 22:23:33Aviation Color Code: REDDOWNLOAD PDF
ETNA2021-03-23 20:46:42Aviation Color Code: REDDOWNLOAD PDF
ETNA2021-03-23 16:25:54Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2021-03-19 12:58:31Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2021-03-19 08:39:48Aviation Color Code: REDDOWNLOAD PDF
ETNA2021-03-19 08:16:47Aviation Color Code: REDDOWNLOAD PDF
ETNA2021-03-17 10:08:16Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2021-03-17 09:29:14Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2021-03-17 02:26:10Aviation Color Code: REDDOWNLOAD PDF
ETNA2021-03-15 07:09:55Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2021-03-14 23:56:15Aviation Color Code: REDDOWNLOAD PDF
ETNA2021-03-14 22:36:30Aviation Color Code: REDDOWNLOAD PDF
ETNA2021-03-12 12:32:48Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2021-03-12 08:44:05Aviation Color Code: REDDOWNLOAD PDF
ETNA2021-03-12 07:49:14Aviation Color Code: REDDOWNLOAD PDF
ETNA2021-03-12 06:18:24Aviation Color Code: REDDOWNLOAD PDF
ETNA2021-03-10 07:48:55Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2021-03-10 00:56:40Aviation Color Code: REDDOWNLOAD PDF
ETNA2021-03-09 18:36:05Aviation Color Code: REDDOWNLOAD PDF
ETNA2021-03-07 14:53:45Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2021-03-07 11:13:26Aviation Color Code: REDDOWNLOAD PDF
ETNA2021-03-07 06:30:06Aviation Color Code: REDDOWNLOAD PDF
ETNA2021-03-07 02:19:16Aviation Color Code: REDDOWNLOAD PDF
ETNA2021-03-04 10:16:09Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2021-03-04 08:17:04Aviation Color Code: REDDOWNLOAD PDF
ETNA2021-03-04 07:55:08Aviation Color Code: REDDOWNLOAD PDF
ETNA2021-03-04 07:51:55Aviation Color Code: REDDOWNLOAD PDF
ETNA2021-03-04 06:16:18Aviation Color Code: REDDOWNLOAD PDF
ETNA2021-03-04 02:28:35Aviation Color Code: REDDOWNLOAD PDF
INDIETROAVANTI