Masaya Volcano Volcanic Ash Advisory: VA EMS OBS to 5000 ft (1500 m)

Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 5000 ft (1500 m) altitude or flight level 050 .
The full report is as follows:

FVXX24 at 14:12 UTC, 26/04/26 from KNES
VA ADVISORY
DTG: 20260426/1410Z

VAAC: WASHINGTON

VOLCANO: MASAYA 344100
PSN: N1159 W08610

AREA: NICARAGUA

SOURCE ELEV: 1949 FT AMSL

ADVISORY NR: 2026/006

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

ERUPTION DETAILS: VA EMS OBS

OBS VA DTG: 26/1330Z

OBS VA CLD: SFC/FL050 N1202 W08610 – N1158 W08602
– N1155 W08603 – N1158 W08610 – N1202 W08610 MOV
E 10KT

FCST VA CLD +6HR: 26/1930Z SFC/FL050 N1201 W08610
– N1153 W08558 – N1150 W08601 – N1158 W08611 –
N1201 W08610

FCST VA CLD +12HR: 27/0130Z NO VA EXP

FCST VA CLD +18HR: 27/0730Z NO VA EXP

RMK: VA EMS OBS IN STLT IMG UP TO APPRX 10NM FM
SUMMIT. LGT VA EMS SEEN IN WEBCAM. NWP MDL
GUIDANCE FCSTS GEN SE MOVMT THRU T+6. HGT BASED
ON MOVMT AND NWP MDLS. …MONAGHAN

NXT ADVISORY: WILL BE ISSUED BY 20260426/2015Z

Dukono Volcano Volcanic Ash Advisory: VA TO FL080 OBS AT 26/0820Z MOVING W OBS VA DTG: 26/0820Z to 8000 ft (2400 m)

Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Darwin warned about a volcanic ash plume that rose up to estimated 8000 ft (2400 m) altitude or flight level 080 and is moving at 10 kts in W direction.
The full report is as follows:

FVAU03 at 08:42 UTC, 26/04/26 from ADRM
VA ADVISORY
DTG: 20260426/0841Z
VAAC: DARWIN
VOLCANO: DUKONO 268010
PSN: N0142 E12754
AREA: INDONESIA
SOURCE ELEV: 1229M AMSL
ADVISORY NR: 2026/164
INFO SOURCE: HIMAWARI-9, CVGHM
ERUPTION DETAILS: VA TO FL080 OBS AT 26/0820Z MOVING W
OBS VA DTG: 26/0820Z
OBS VA CLD: SFC/FL080 N0143 E12758 – N0138 E12756 – N0123
E12534 – N0224 E12534 – N0243 E12636 MOV W 10KT
FCST VA CLD +6 HR: 26/1420Z SFC/FL080 N0143 E12758 – N0138
E12756 – N0102 E12533 – N0156 E12524 – N0230 E12544
FCST VA CLD +12 HR: 26/2020Z SFC/FL080 N0144 E12757 – N0138
E12756 – N0046 E12539 – N0129 E12522 – N0208 E12535
FCST VA CLD +18 HR: 27/0220Z SFC/FL080 N0147 E12756 – N0136
E12800 – N0027 E12600 – N0059 E12517 – N0149 E12536
RMK: VA DISCERNIBLE ON LATEST VISIBLE AND RGB SATELLITE
IMAGERY. VA HEIGHT AND MOVEMENT BASED ON SATELLITE IMAGERY,
GROUND REPORTS AND MODEL GUIDANCE.
NXT ADVISORY: NO LATER THAN 20260426/1441Z=

Lewotobi Volcano Volcanic Ash Advisory: GROUND REPORT OF ERUPTION TO FL090 AT 26/0457Z

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

FVAU04 at 05:20 UTC, 26/04/26 from ADRM
VA ADVISORY
DTG: 20260426/0520Z
VAAC: DARWIN
VOLCANO: LEWOTOBI 264180
PSN: S0833 E12246
AREA: INDONESIA
SOURCE ELEV: 1703M AMSL
ADVISORY NR: 2026/71
INFO SOURCE: CVGHM
ERUPTION DETAILS: GROUND REPORT OF ERUPTION TO FL090 AT
26/0457Z
EST VA DTG: 26/0457Z
EST VA CLD: SFC/FL090 S0835 E12248 – S0847 E12211 – S0827
E12210 – S0831 E12247 MOV W 10KT
FCST VA CLD +6 HR: 26/1057Z SFC/FL090 S0831 E12247 – S0834
E12248 – S0854 E12217 – S0835 E12209
FCST VA CLD +12 HR: 26/1657Z NO VA EXP
FCST VA CLD +18 HR: 26/2257Z NO VA EXP
RMK: ERUPTION TO 1000M ABOVE THE SUMMIT REPORTED BY CVGHM.
VA NOT OBSERVED ON SATELLITE IMAGERY DUE TO MET CLOUD. VA
EXPECTED TO DISSIPATE WITHIN 6-12 HOURS. FORECAST BASED ON
GROUND REPORT AND MODEL GUIDANCE.
NXT ADVISORY: NO LATER THAN 20260426/1120Z=

Ibu Volcano Volcanic Ash Advisory: VA TO FL070 OBS AT 25/2330Z MOVING WEST OBS VA DTG: 25/2330Z to 7000 ft (2100 m)

Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Darwin warned about a volcanic ash plume that rose up to estimated 7000 ft (2100 m) altitude or flight level 070 and is moving at 10 kts in W direction.
The full report is as follows:

FVAU01 at 00:00 UTC, 26/04/26 from ADRM
VA ADVISORY
DTG: 20260426/0000Z
VAAC: DARWIN
VOLCANO: IBU 268030
PSN: N0129 E12738
AREA: INDONESIA
SOURCE ELEV: 1325M AMSL
ADVISORY NR: 2026/469
INFO SOURCE: HIMAWARI-9, CVGHM
ERUPTION DETAILS: VA TO FL070 OBS AT 25/2330Z MOVING WEST
OBS VA DTG: 25/2330Z
OBS VA CLD: SFC/FL070 N0127 E12739 – N0126 E12702 – N0136
E12659 – N0146 E12706 – N0130 E12740 MOV W 10KT
FCST VA CLD +6 HR: 26/0530Z SFC/FL070 N0127 E12739 – N0130
E12657 – N0141 E12653 – N0149 E12702 – N0131 E12740
FCST VA CLD +12 HR: 26/1130Z SFC/FL070 N0127 E12739 – N0126
E12656 – N0136 E12653 – N0145 E12659 – N0131 E12740
FCST VA CLD +18 HR: 26/1730Z SFC/FL070 N0127 E12740 – N0121
E12657 – N0133 E12651 – N0143 E12657 – N0131 E12740
RMK: DISCRETE VA EMISSIONS DISCERNIBLE ON LATEST VISIBLE AND
RGB SATELLITE IMAGERY. VA HEIGHT AND MOV BASED ON SATELLITE
IMAGERY, 25/2118Z GROUND REPORT AND MODEL GUIDANCE.
NXT ADVISORY: NO LATER THAN 20260426/0600Z=

Lewotobi Volcano Volcanic Ash Advisory: GROUND REPORT OF ERUPTION AT 25/2121Z EST VA DTG: 25/2120Z

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

FVAU05 at 21:48 UTC, 25/04/26 from ADRM
VA ADVISORY
DTG: 20260425/2148Z
VAAC: DARWIN
VOLCANO: LEWOTOBI 264180
PSN: S0833 E12246
AREA: INDONESIA
SOURCE ELEV: 1703M AMSL
ADVISORY NR: 2026/69
INFO SOURCE: CVGHM
ERUPTION DETAILS: GROUND REPORT OF ERUPTION AT 25/2121Z
EST VA DTG: 25/2120Z
EST VA CLD: SFC/FL110 S0834 E12248 – S0838 E12226 – S0825
E12227 – S0831 E12248 MOV W 10KT
FCST VA CLD +6 HR: 26/0320Z SFC/FL110 S0834 E12248 – S0842
E12225 – S0827 E12225 – S0831 E12248
FCST VA CLD +12 HR: 26/0920Z NO VA EXP
FCST VA CLD +18 HR: 26/1520Z NO VA EXP
RMK: AN ERUPTION OF UNKNOWN HEIGHT WAS REPORTED BY CVGHM
BASED ON SEISMIC DATA. VA NOT OBSERVED ON SATELLITE IMAGERY
DUE TO MET CLOUD. VA IS EXPECTED TO DISSIPATE WITHIN 6-12
HOURS. FORECAST BASED ON GROUND REPORT, PAST ERUPTIVE
BEHAVIOUR AND MODEL GUIDANCE.
NXT ADVISORY: NO LATER THAN 20260426/0348Z=