Autor: global-affair

Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Tokyo warned about a volcanic ash plume that rose up to estimated 12000 ft (3700 m) altitude or flight level 120 and is moving at 20 kts in N direction.
The full report is as follows:

FVFE01 at 13:29 UTC, 06/12/25 from RJTD
VA ADVISORY
DTG: 20251206/1329Z
VAAC: TOKYO
VOLCANO: SHEVELUCH 300270
PSN: N5639 E16122
AREA: RUSSIA
SOURCE ELEV: 3283M AMSL
ADVISORY NR: 2025/229
INFO SOURCE: HIMAWARI-9
ERUPTION DETAILS: POSS ERUPTION OBS AT 20251206/1240Z FL120 EXTD N
OBS VA DTG: 06/1300Z
OBS VA CLD: SFC/FL120 N5656 E16124 – N5655 E16129 – N5642 E16126 –
N5643 E16122 MOV N 20KT
FCST VA CLD +6 HR: 06/1900Z SFC/FL120 N5857 E16156 – N5737 E16227 –
N5722 E16151 – N5850 E16112
FCST VA CLD +12 HR: 07/0100Z SFC/FL110 N6058 E16201 – N5830 E16310 –

N5800 E16215 – N6040 E16058
FCST VA CLD +18 HR: NO VA EXP
RMK: VA OF PREVIOUS VAA HAS DISSIPATED IN SATELLITE IMAGERY. NEW VA
OBS IN SATELLITE IMAGERY.
NXT ADVISORY: 20251206/1800Z=

Satellite image of Ibu volcano on 6 Dec 2025

Volcanic Ash Advisory Center Darwin (VAAC) issued the following report:

FVAU03 at 08:11 UTC, 06/12/25 from ADRM
VA ADVISORY
DTG: 20251206/0811Z
VAAC: DARWIN
VOLCANO: IBU 268030
PSN: N0129 E12738
AREA: INDONESIA
SOURCE ELEV: 1325M AMSL
ADVISORY NR: 2025/1361
INFO SOURCE: CVGHM
ERUPTION DETAILS: VA ERUPTION TO FL060 REPORTED AT 06/0656Z
EST VA DTG: 06/0750Z
EST VA CLD: SFC/FL060 N0126 E12736 – N0130 E12734 – N0144
E12801 – N0129 E12809 MOV NE 20KT
FCST VA CLD +6 HR: 06/1350Z SFC/FL060 N0126 E12735 – N0133
E12733 – N0202 E12834 – N0132 E12849
FCST VA CLD +12 HR: 06/1950Z NO VA EXP
FCST VA CLD +18 HR: 07/0150Z NO VA EXP
RMK: CVGHM REPORTED VA ERUPTION. VA NOT OBSERVED ON
SATELLITE IMAGERY DUE TO MET CLOUD BUT EXPECTED TO DISSIPATE
WITHIN 3-6 HOURS. HEIGHT AND FORECAST BASED ON GROUND REPORT
AND MODEL GUIDANCE.
NXT ADVISORY: NO LATER THAN 20251206/1411Z=

Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Tokyo warned about a volcanic ash plume that rose up to estimated 9000 ft (2700 m) altitude or flight level 090 and is moving at 15 kts in E direction.
The full report is as follows:

FVFE01 at 06:00 UTC, 06/12/25 from RJTD
VA ADVISORY
DTG: 20251206/0600Z
VAAC: TOKYO
VOLCANO: SAKURAJIMA [AIRA CALDERA] 282080
PSN: N3136 E13039
AREA: JAPAN
SOURCE ELEV: 1117M AMSL
ADVISORY NR: 2025/455
INFO SOURCE: HIMAWARI-9
ERUPTION DETAILS: VA CONTINUOUSLY OBS IN SATELLITE IMAGERY
OBS VA DTG: 06/0520Z
OBS VA CLD: SFC/FL090 N3143 E13053 – N3143 E13100 – N3137 E13058 –
N3138 E13053 MOV E 15KT
FCST VA CLD +6 HR: 06/1120Z SFC/FL090 N3144 E13344 – N3110 E13124 –
N3159 E13121 – N3228 E13225
FCST VA CLD +12 HR: 06/1720Z SFC/FL070 N3113 E13600 – N3029 E13148 –

N3157 E13127 – N3259 E13359
FCST VA CLD +18 HR: NO VA EXP
RMK: SOME PART OF VA OBSCURED BY MET CLOUD.
NXT ADVISORY: 20251206/1200Z=

Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 19000 ft (5800 m) altitude or flight level 190 .
The full report is as follows:

FVXX25 at 01:24 UTC, 06/12/25 from KNES
VA ADVISORY
DTG: 20251206/0122Z

VAAC: WASHINGTON

VOLCANO: SANGAY 352090
PSN: S0200 W07820

AREA: ECUADOR

SOURCE ELEV: 17342 FT AMSL

ADVISORY NR: 2025/919

INFO SOURCE: GOES-19. NWP MODELS.

ERUPTION DETAILS: FREQUENT VA EMS

OBS VA DTG: 06/0040Z

OBS VA CLD: SFC/FL190 S0200 W07820 – S0208 W07804
– S0213 W07807 – S0201 W07820 – S0200 W07820 MOV
SE 10KT

FCST VA CLD +6HR: 06/0630Z SFC/FL190 S0200 W07820
– S0203 W07803 – S0208 W07804 – S0201 W07820 –
S0200 W07820

FCST VA CLD +12HR: 06/1230Z NO VA EXP

FCST VA CLD +18HR: 06/1830Z NO VA EXP

RMK: SML VA EMS OBS IN STLT IMG EXT APRX 20NM SE
FM SUMMIT. ESE MVMT EXP BY T+6. FCST BASED ON
STLT AND MDL WINDS. …GATLING

NXT ADVISORY: WILL BE ISSUED BY 20251206/0715Z

Satellite image of Semeru volcano on 5 Dec 2025

Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Darwin warned about a volcanic ash plume that rose up to estimated 15000 ft (4600 m) altitude or flight level 150 .
The full report is as follows:

FVAU02 at 22:06 UTC, 05/12/25 from ADRM
VA ADVISORY
DTG: 20251205/2200Z
VAAC: DARWIN
VOLCANO: SEMERU 263300
PSN: S0806 E11255
AREA: INDONESIA
SOURCE ELEV: 3657M AMSL
ADVISORY NR: 2025/1390
INFO SOURCE: CVGHM, HIMAWARI-9
ERUPTION DETAILS: VA TO FL150 OBS AT 05/2140Z MOV S
OBS VA DTG: 05/2140Z
OBS VA CLD: SFC/FL150 S0800 E11251 – S0759 E11259 – S0821
E11309 – S0822 E11246 MOV S 05KT
FCST VA CLD +6 HR: 06/0340Z SFC/FL150 S0800 E11259 – S0824
E11312 – S0825 E11242 – S0800 E11251
FCST VA CLD +12 HR: 06/0940Z SFC/FL150 S0758 E11257 – S0822
E11310 – S0824 E11242 – S0758 E11247
FCST VA CLD +18 HR: 06/1540Z SFC/FL150 S0758 E11258 – S0825
E11310 – S0824 E11242 – S0758 E11248
RMK: VA OBSERVED ON LATEST SATELLITE IMAGERY. GROUND REPORTS
INDICATE DISCRETE VA EMISSIONS ARE ONGOING. VA HEIGHT AND
MOVEMENT BASED ON SATELLITE IMAGERY, GROUND REPORTS AND
MODEL GUIDANCE. **CORRECTED FOR RMK TYPO**
NXT ADVISORY: NO LATER THAN 20251206/0400Z=