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

FVAU01 at 19:03 UTC, 13/04/26 from ADRM
VA ADVISORY
DTG: 20260413/1910Z
VAAC: DARWIN
VOLCANO: IBU 268030
PSN: N0129 E12738
AREA: INDONESIA
SOURCE ELEV: 1325M AMSL
ADVISORY NR: 2026/421
INFO SOURCE: HIMAWARI-9, CVGHM
ERUPTION DETAILS: VA ERUPTION LAST REP AT 13/1423Z
EST VA DTG: 13/1850Z
EST VA CLD: SFC/FL070 N0127 E12732 – N0136 E12734 – N0138
E12846 – N0101 E12841 MOV E 10KT
FCST VA CLD +6 HR: 14/0050Z SFC/FL070 N0127 E12732 – N0135
E12733 – N0139 E12845 – N0104 E12840
FCST VA CLD +12 HR: 14/0650Z SFC/FL070 N0127 E12732 – N0135
E12732 – N0140 E12845 – N0102 E12841
FCST VA CLD +18 HR: 14/1250Z SFC/FL070 N0127 E12731 – N0136
E12732 – N0143 E12847 – N0103 E12842
RMK: VA NOT IDENTIFIABLE ON LATEST SATELLITE IMAGERY DUE TO
MET CLOUD. GROUND REPORT INDICATES DISCRETE ERUPTIONS ARE
ONGOING. VA HEIGHT AND MOVEMENT BASED ON GROUND REPORTS AND
MODEL GUIDANCE.
NXT ADVISORY: NO LATER THAN 20260414/0110Z=

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

FVFE01 at 14:30 UTC, 13/04/26 from RJTD
VA ADVISORY
DTG: 20260413/1430Z
VAAC: TOKYO
VOLCANO: MAYON 273030
PSN: N1315 E12341
AREA: PHILIPPINES
SOURCE ELEV: 2462M AMSL
ADVISORY NR: 2026/478
INFO SOURCE: HIMAWARI-9 PHIVOLCS
ERUPTION DETAILS: ERUPTION AT 20260413/1355Z VA CLD UNKNOWN REPORTED
OBS VA DTG: 13/1410Z
OBS VA CLD: VA NOT IDENTIFIABLE FM SATELLITE DATA WIND FL180 060/15KT

FCST VA CLD +6 HR: NOT AVBL
FCST VA CLD +12 HR: NOT AVBL
FCST VA CLD +18 HR: NOT AVBL
RMK: WE WILL ISSUE FURTHER ADVISORY IF VA IS DETECTED IN SATELLITE
IMAGERY.
NXT ADVISORY: NO FURTHER ADVISORIES=

Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington 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:

FVXX23 at 08:28 UTC, 13/04/26 from KNES
VA ADVISORY
DTG: 20260413/0826Z

VAAC: WASHINGTON

VOLCANO: REVENTADOR 352010
PSN: S0004 W07739

AREA: ECUADOR

SOURCE ELEV: 11686 FT AMSL

ADVISORY NR: 2026/358

INFO SOURCE: GOES-19. VONA. NWP MODELS.

ERUPTION DETAILS: VA MOVG NW

OBS VA DTG: 13/0750Z

OBS VA CLD: SFC/FL150 N0003 W07744 – S0005 W07739
– S0005 W07740 – N0001 W07747 – N0003 W07744 MOV
NW 10KT

FCST VA CLD +6HR: 13/1400Z SFC/FL150 N0010 W07748
– S0005 W07739 – S0005 W07740 – N0003 W07754 –
N0010 W07748

FCST VA CLD +12HR: 13/2000Z SFC/FL150 N0005
W07740 – S0005 W07738 – S0005 W07740 – N0004
W07746 – N0005 W07740

FCST VA CLD +18HR: 14/0200Z SFC/FL150 N0006
W07740 – S0005 W07738 – S0005 W07740 – N0004
W07746 – N0006 W07740

RMK: RCNT VA EMS OBS IN STLT IMAGERY MOVG APPRX
10NM NW FM SUMMIT. VONA RPRT RCVD. VA FCST THRU
T+18 HRS BASED ON NWP MDL GUIDANCE. …COVERDALE

NXT ADVISORY: WILL BE ISSUED BY 20260413/1430Z