Semisopochnoi Volcano Volcanic Ash Advisory: A SEQUENCE OF EXPLOSIONS STARTING AROUND 20Z CREATED AN ASH CL OUD to 10000 ft (3000 m)
Sun, 19 Sep 2021, 23:30 | BY: VN
Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Anchorage warned about a volcanic ash plume that rose up to estimated 10000 ft (3000 m) altitude or flight level 100 and is moving at 15 kts in S direction.The full report is as follows:
FVAK21 at 23:16 UTC, 19/09/21 from PAWU
VAAAK1
VA ADVISORY
DTG: 20210919/2252Z
VAAC: ANCHORAGE
VOLCANO: SEMISOPOCHNOI 311060
PSN: N5156 E17935
AREA: ALEUTIAN ISLANDS
SUMMIT ELEV: 4006 FT [1221 M]
ADVISORY NR: 2021/123
INFO SOURCE: HIMAWARI/AVO
AVIATION COLOR CODE: ORANGE
ERUPTION DETAILS: A SEQUENCE OF EXPLOSIONS STARTING AROUND 20Z CREATED AN ASH CL
OUD
MOVING MOVING FROM THE VOLCANO.
OBS VA DTG: 19/2252Z
OBS VA CLD: SFC/FL100 N5207 E17954 - N5117 W17842 - N5109 E17940
- N5209 E17907 - N5207 E17954 MOV S 15KT.
FCST VA CLD +6HR: 20/0452Z SFC/FL100 N5153 E17923 - N5208 W17911
- N5030 W17742 - N5034 E17937 - N5153 E17923 - N5153 E17923.
FCST VA CLD +12HR: 20/1052Z NO VA EXP.
FCST VA CLD +18HR: 20/1652Z NO VA EXP.
RMK: VA VISIBLE ON HIMAWARI SATELLITE RGB ASH SO2 AND DUST PRODUCTS.
NXT ADVISORY: WILL BE ISSUED BY 20210920/0452Z
KH SEP 2021 AAWU
- All news about: Semisopochnoi volcano
- Information about: Semisopochnoi volcano
Previous news
Wed, 15 Sep 2021, 06:00
Semisopochnoi volcano (Aleutian Islands, USA) - Smithsonian / USGS Weekly Volcanic Activity Report for 15 September-21 September 2021 (New Activity / Unrest)
AVO reported that eruptive activity at Semisopochnoi's North Cerberus crater continued during 15-21 September. Weather clouds obscured views of the volcano on most days. Several small daily explosions were recorded by local seismic stations; ash plumes were not visible in satellite images suggesting that they remained below 3 km (10,000 ft) a.s.l. and did not rise above the cloud deck. ... Read all
Tue, 14 Sep 2021, 00:30
Semisopochnoi volcano (Aleutian Islands): occasional low-level eruptive activity continues
The explosive eruption of the volcano continues from the Mount Cerberus crater characterized by low-level ash emissions. ... Read all
Show more