Semisopochnoi Volcano Volcanic Ash Advisory: OCNL ERUPTIONS. to 8000 ft (2400 m)
ven., 19 nov. 2021, 10:45
10:45 AM | AUTEUR : VNThe full report is as follows:
FVAK21 at 10:33 UTC, 19/11/21 from PAWU
VAAAK1
VA ADVISORY
DTG: 20211119/1030Z
VAAC: ANCHORAGE
VOLCANO: SEMISOPOCHNOI 311060
PSN: N5156 E17935
AREA: ALEUTIAN ISLANDS
SUMMIT ELEV: 4006 FT [1221 M]
ADVISORY NR: 2021/194
INFO SOURCE: HIMAWARI/GOES 17/WEBICORDER
AVIATION COLOR CODE: ORANGE
ERUPTION DETAILS: OCNL ERUPTIONS.
OBS VA DTG: 19/1030Z
OBS VA CLD: SFC/FL080 N5248 E17810 - N5205 E17955 - N5146 E17933
- N5223 E17744 - N5248 E17810 MOV WNW 15KT
FCST VA CLD +6HR: 19/1630Z SFC/FL080 N5225 E17730 - N5204 E17948
- N5124 E17936 - N5133 E17734 - N5225 E17730
FCST VA CLD +12HR: 19/2230Z SFC/FL080 N5206 E17945 - N5038
W17931 - N5006 E17831 - N5115 E17630 - N5134 E17744 - N5206 E17945
FCST VA CLD +18HR: 20/0430Z SFC/FL080 N5203 E17947 - N4936
W17741 - N4843 W17941 - N4948 E17728 - N5022 E17817 - N5003
W17928 - N5149 E17917 - N5203 E17947 - N5203 E17947
RMK: METEOROLOGICAL CLDS HAVE MOVED FAR ENOUGH AWAY FROM THE VOLCANO SUMMIT
THAT A VA SIGNAL IS OBSERVED. THIS SIGNAL EMERGED ALG WITH AN UPTICK IN SEISMIC
WEBICORDER DATA. TRANSPORT WINDS INITIALLY OUT OF THE SE BECMG MORE OUT OF THE
N IN COMING HRS AS A LOW PRES SYSTEM TRACKS INTO THE CENTRAL ALUTNS FM THE PAC
SIDE. ...JAM
NXT ADVISORY: WILL BE ISSUED BY 20211119/1630Z
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Actualités précédentes
mer., 17 nov. 2021, 06:00
AVO reported that eruptive activity at Semisopochnoi's North Cerberus crater continued during 17-23 November. Daily minor explosions were detected in seismic and infrasound data. Small ash plumes rising no higher than 3 km (10,000 ft) a.s.l. likely continued to be emitted, though weather clouds obscured satellite and webcam views of the volcano on most days. ... Read all
mar., 16 nov. 2021, 10:45
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