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.

VOLCANO
DATE
DESCRIPTION
FILE TYPE
ETNA2019-03-05 11:43:02Aviation Color Code: GREENDOWNLOAD PDF
ETNA2019-02-25 09:24:04Aviation Color Code: YELLOWDOWNLOAD PDF
ETNA2019-02-22 08:39:13Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2019-02-21 08:29:43Aviation Color Code: REDDOWNLOAD PDF
ETNA2019-02-21 05:48:50Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2019-02-19 06:13:43Aviation Color Code: REDDOWNLOAD PDF
ETNA2019-02-18 13:13:34Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2019-02-18 07:21:25Aviation Color Code: REDDOWNLOAD PDF
ETNA2019-02-18 06:39:02Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2019-02-17 17:21:34Aviation Color Code: REDDOWNLOAD PDF
ETNA2019-02-17 16:38:19Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2019-02-14 15:09:03Aviation Color Code: YELLOWDOWNLOAD PDF
ETNA2019-02-14 10:59:23Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2019-02-13 10:45:27Aviation Color Code: YELLOWDOWNLOAD PDF
ETNA2019-02-10 08:21:11Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2019-02-10 06:33:15Aviation Color Code: REDDOWNLOAD PDF
ETNA2019-02-09 07:26:08Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2019-02-09 06:00:19Aviation Color Code: REDDOWNLOAD PDF
ETNA2019-02-08 10:00:02Aviation Color Code: ORANGEDOWNLOAD PDF
ETNA2019-02-08 07:21:31Aviation Color Code: REDDOWNLOAD PDF
 AVANTI