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Explosive activity continues. The Volcanic Ash Advisory Center (VAAC) Washington warned of a volcanic ash plume rising to an estimated 20000 ft (6100 m), or flight level 200.
Original VAAC bulletin:

FVXX23 at 14:12 UTC, 12/10/26 from KNES
VA ADVISORY
DTG: 20261012/1409Z

VAAC: WASHINGTON

VOLCANO: POPOCATEPETL 341090
PSN: N1901 W09837

AREA: MEXICO

SOURCE ELEV: 17693 FT AMSL

ADVISORY NR: 2026/350

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

ERUPTION DETAILS: NEW VA EMS 

OBS VA DTG: 12/1356Z

OBS VA CLD: SFC/FL200 N1904 W09850 - N1902 W09837
- N1900 W09835 - N1855 W09849 - N1904 W09850 MOV
SW 10KT 

FCST VA CLD +6HR: 12/2000Z SFC/FL200 N1902 W09920
- N1902 W09836 - N1900 W09836 - N1845 W09918 -
N1902 W09920 

FCST VA CLD +12HR: 13/0200Z NO VA EXP

FCST VA CLD +18HR: 13/0800Z NO VA EXP

RMK: DISCRETE VA EMS OBS ON WEBCAM AND AMONG WX
CLDS IN STLT MVG WSW FM SUMMIT. WSW MVMT TO CONT
THRU T+6 ACCORDING TO NWP MDLS. FL EST FM WEBCAM
AND NWP MDLS. ...EVANS

NXT ADVISORY: WILL BE ISSUED BY 20261012/2015Z

Explosive activity continues. The Volcanic Ash Advisory Center (VAAC) Darwin warned of a volcanic ash plume rising to an estimated 15000 ft (4600 m), or flight level 150, and moving at 10 kts in W direction.
Original VAAC bulletin:

FVAU02 at 12:20 UTC, 12/10/26 from ADRM
VA ADVISORY
DTG: 20261012/1220Z
VAAC: DARWIN
VOLCANO: SEMERU 263300
PSN: S0806 E11255
AREA: INDONESIA
SOURCE ELEV: 3657M AMSL
ADVISORY NR: 2026/1168
INFO SOURCE: HIMAWARI-9, CVGHM
ERUPTION DETAILS: VA TO FL150 OBS AT 12/1200Z
OBS VA DTG: 12/1200Z
OBS VA CLD: SFC/FL150 S0809 E11258 - S0838 E11229 - S0832
 E11201 - S0756 E11201 - S0802 E11258 MOV W 10KT
FCST VA CLD +6 HR: 12/1800Z SFC/FL150 S0809 E11258 - S0832
 E11201 - S0756 E11201 - S0802 E11258
FCST VA CLD +12 HR: 13/0000Z SFC/FL150 S0809 E11258 - S0832
 E11201 - S0756 E11201 - S0802 E11258
FCST VA CLD +18 HR: 13/0600Z SFC/FL150 S0809 E11258 - S0820
 E11159 - S0750 E11202 - S0802 E11258
RMK: VA OBS MOV W TO SW ON SATELLITE. CVGHM REPORT VA TO
 700M ABV SUMMIT. HEIGHT AND MOVEMENT BASED ON SATELLITE
 IMAGERY, GROUND REPORTS AND MODEL GUIDANCE.
NXT ADVISORY: NO LATER THAN 20261012/1820Z=

A new volcanic ash emission was observed from Santiaguito, with ash reaching 13,000 ft (4,000 m) as of 10:10 UTC on 12 October 2026. Forecasts indicate ash movement to the west-southwest and no ash expected after 22:00 UTC.
Original VAAC bulletin:

FVXX22 at 10:44 UTC, 12/10/26 from KNES
VA ADVISORY
DTG: 20261012/1041Z

VAAC: WASHINGTON

VOLCANO: SANTA MARIA 342030
PSN: N1445 W09133

AREA: GUATEMALA

SOURCE ELEV: 12287 FT AMSL

ADVISORY NR: 2026/595

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

ERUPTION DETAILS: NEW VA EMS 

OBS VA DTG: 12/1010Z

OBS VA CLD: SFC/FL130 N1447 W09144 - N1446 W09132
- N1444 W09132 - N1438 W09142 - N1447 W09144 MOV
W 10KT 

FCST VA CLD +6HR: 12/1600Z SFC/FL130 N1446 W09132
- N1444 W09132 - N1435 W09155 - N1444 W09157 -
N1446 W09132 

FCST VA CLD +12HR: 12/2200Z NO VA EXP

FCST VA CLD +18HR: 13/0400Z NO VA EXP

RMK: VA EMS OBS IN STLT AND WEBCAM APPRX 10 NM
WSW FM SUMMIT. WSW MVMT EXP THRU T+6 ACCORDING TO
NWP MDLS. ...EVANS

NXT ADVISORY: WILL BE ISSUED BY 20261012/1645Z

Satellite image of Manam volcano on 12 Oct 2026

Explosive activity continues. The Volcanic Ash Advisory Center (VAAC) Darwin warned of a volcanic ash plume rising to an estimated 7000 ft (2100 m), or flight level 070, and moving at 05 kts in NW direction.
Original VAAC bulletin:

FVAU04 at 05:46 UTC, 12/10/26 from ADRM
VA ADVISORY
DTG: 20261012/0600Z
VAAC: DARWIN
VOLCANO: MANAM 251020
PSN: S0405 E14502
AREA: PAPUA NEW GUINEA
SOURCE ELEV: 1807M AMSL
ADVISORY NR: 2026/56
INFO SOURCE: HIMAWARI-9
ERUPTION DETAILS: CONTINUOUS VA OBS TO FL070 EXT NW
OBS VA DTG: 12/0530Z
OBS VA CLD: SFC/FL070 S0404 E14505 - S0409 E14502 - S0402
 E14421 - S0334 E14430 - S0333 E14457 MOV NW 05KT
FCST VA CLD +6 HR: 12/1130Z SFC/FL070 S0408 E14501 - S0359
 E14421 - S0325 E14440 - S0345 E14507 - S0404 E14507
FCST VA CLD +12 HR: 12/1730Z SFC/FL070 S0409 E14501 - S0359
 E14421 - S0334 E14436 - S0334 E14456 - S0404 E14507
FCST VA CLD +18 HR: 12/2330Z SFC/FL070 S0408 E14502 - S0359
 E14421 - S0334 E14436 - S0335 E14456 - S0404 E14507
RMK: VA IDENTIFIABLE ON SATELLITE IMAGERY. HEIGHT AND
 FORECAST BASED ON MODEL GUIDANCE AND HIMAWARI-9 IMAGERY.
NXT ADVISORY: NO LATER THAN 20261012/1200Z=