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Santiaguito Volcano Volcanic Ash Advisory: LGT VA EMS OBS

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

FVXX21 at 13:20 UTC, 28/12/25 from KNES
VA ADVISORY
DTG: 20251228/1317Z

VAAC: WASHINGTON

VOLCANO: SANTA MARIA 342030
PSN: N1445 W09133

AREA: GUATEMALA

SOURCE ELEV: 12287 FT AMSL

ADVISORY NR: 2025/891

INFO SOURCE:

ERUPTION DETAILS: LGT VA EMS OBS

EST VA DTG: 28/1240Z

EST VA CLD: SFC/FL130 N1450 W09132 – N1445 W09132
– N1444 W09134 – N1449 W09135 – N1450 W09132 MOV
NW 5KT

FCST VA CLD +6HR: 28/1830Z SFC/FL130 N1501 W09135
– N1446 W09131 – N1444 W09134 – N1459 W09140 –
N1501 W09135

FCST VA CLD +12HR: 29/0030Z NO VA EXP

FCST VA CLD +18HR: 29/0630Z NO VA EXP

RMK: VA EMS NOT OBS IN STLT IMG. LGT VA EMS SEEN
IN WEBCAM. NWP MDL GUIDANCE FCSTS GEN NW MOVMT
THRU T+6. …MONAGHAN

NXT ADVISORY: WILL BE ISSUED BY 20251228/1930Z

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Ibu Volcano Volcanic Ash Advisory: VA TO FL060 LAST REPORTED 27/0852Z EST VA DTG: 28/0920Z to 6000 ft (1800 m)

Satellite image of Ibu volcano on 28 Dec 2025

Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Darwin warned about a volcanic ash plume that rose up to estimated 6000 ft (1800 m) altitude or flight level 060 and is moving at 05 kts in W direction.
The full report is as follows:

FVAU01 at 09:36 UTC, 28/12/25 from ADRM
VA ADVISORY
DTG: 20251228/0940Z
VAAC: DARWIN
VOLCANO: IBU 268030
PSN: N0129 E12738
AREA: INDONESIA
SOURCE ELEV: 1325M AMSL
ADVISORY NR: 2025/1455
INFO SOURCE: HIMAWARI-9, CVGHM
ERUPTION DETAILS: VA TO FL060 LAST REPORTED 27/0852Z
EST VA DTG: 28/0920Z
EST VA CLD: SFC/FL060 N0121 E12740 – N0124 E12720 – N0138
E12720 – N0144 E12732 – N0137 E12743 MOV W 05KT
FCST VA CLD +6 HR: 28/1520Z SFC/FL060 N0121 E12740 – N0124
E12720 – N0138 E12720 – N0144 E12732 – N0137 E12743
FCST VA CLD +12 HR: 28/2120Z SFC/FL060 N0131 E12742 – N0121
E12740 – N0124 E12719 – N0135 E12719 – N0143 E12729
FCST VA CLD +18 HR: 29/0320Z SFC/FL060 N0132 E12742 – N0121
E12739 – N0124 E12719 – N0135 E12719 – N0143 E12729
RMK: VA NOT IDENTIFIABLE ON CURRENT SATELLITE IMAGERY DUE TO
MET CLOUD. GROUND REPORTS INDICATE INTERMITTENT DISCRETE
EMISSIONS ARE ONGOING. VA HEIGHT AND MOVEMENT BASED ON PAST
SATELLITE IMAGERY, GROUND REPORTS AND MODEL GUIDANCE.
NXT ADVISORY: NO LATER THAN 20251228/1540Z=