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The Volcanic Ash Advisory Center (VAAC) Washington issued the following bulletin.
Original VAAC bulletin:

FVXX24 at 04:12 UTC, 09/10/26 from KNES
VA ADVISORY
DTG: 20261009/0410Z

VAAC: WASHINGTON

VOLCANO: PURACE 351060
PSN: N0219 W07624

AREA: COLOMBIA

SOURCE ELEV: 15256 FT AMSL

ADVISORY NR: 2026/597

INFO SOURCE: GOES-19. VONA. NWP MODELS. SERVICIO
GEOLOGICO COLOMBIANO. 

ERUPTION DETAILS: VONA RPTS RECENT VA EM.

EST VA DTG: 09/0350Z

EST VA CLD: SFC/FL190 N0225 W07629 - N0220 W07623
- N0219 W07624 - N0222 W07632 - N0225 W07629 MOV
NW 5KT 

FCST VA CLD +6HR: 09/1000Z SFC/FL190 N0226 W07630
- N0219 W07623 - N0219 W07624 - N0222 W07633 -
N0226 W07630 

FCST VA CLD +12HR: 09/1600Z SFC/FL190 N0227
W07629 - N0220 W07623 - N0219 W07624 - N0222
W07633 - N0227 W07629 

FCST VA CLD +18HR: 09/2200Z SFC/FL190 N0228
W07629 - N0219 W07623 - N0219 W07624 - N0222
W07633 - N0228 W07629 

RMK: VA NOT OBS IN SAT WITH DENSE MET CLD OBSCN
OF SUMMIT AREA. RECENT VONA RPTS VA EM 0357Z MOV
WNW. OBS VA AREA ESTD FM VONA AND NWP MDLS. LTLCG
FCST IN FL MVMT THRU T+18 HRS. LOWER CONFIDENCE
IN FCST DUE TO LGT FL WINDS. ...CLARK

NXT ADVISORY: WILL BE ISSUED BY 20261009/1015Z

Satellite image of Semeru volcano on 9 Oct 2026

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.
Original VAAC bulletin:

FVAU02 at 00:14 UTC, 09/10/26 from ADRM
VA ADVISORY
DTG: 20261009/0020Z
VAAC: DARWIN
VOLCANO: SEMERU 263300
PSN: S0806 E11255
AREA: INDONESIA
SOURCE ELEV: 3657M AMSL
ADVISORY NR: 2026/1154
INFO SOURCE: HIMAWARI-9, CVGHM
ERUPTION DETAILS: VA TO FL150 OBS AT 09/0000Z, MOV ENE
OBS VA DTG: 09/0000Z
OBS VA CLD: SFC/FL150 S0809 E11252 - S0804 E11252 - S0754
 E11313 - S0802 E11321 - S0811 E11316 MOV NE 05KT
FCST VA CLD +6 HR: 09/0600Z SFC/FL150 S0803 E11252 - S0756
 E11316 - S0807 E11323 - S0817 E11313 - S0808 E11252
FCST VA CLD +12 HR: 09/1200Z SFC/FL150 S0804 E11252 - S0753
 E11315 - S0804 E11323 - S0814 E11317 - S0808 E11252
FCST VA CLD +18 HR: 09/1800Z SFC/FL150 S0808 E11252 - S0803
 E11252 - S0756 E11315 - S0807 E11323 - S0818 E11315
RMK: VA IDENTIFIABLE ON CURRENT SATELLITE IMAGERY. HEIGHT
 AND MOVEMENT BASED ON SATELLITE IMAGERY, GROUND REPORTS AND
 MODEL GUIDANCE.
NXT ADVISORY: NO LATER THAN 20261009/0620Z=

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.
Original VAAC bulletin:

FVAU03 at 20:53 UTC, 08/10/26 from ADRM
VA ADVISORY
DTG: 20261008/2100Z
VAAC: DARWIN
VOLCANO: IBU 268030
PSN: N0129 E12738
AREA: INDONESIA
SOURCE ELEV: 1325M AMSL
ADVISORY NR: 2026/1144
INFO SOURCE: HIMAWARI-9, CVGHM
ERUPTION DETAILS: VA TO FL070 OBS AT 08/2030Z MOV ESE
OBS VA DTG: 08/2030Z
OBS VA CLD: SFC/FL070 N0126 E12735 - N0133 E12735 - N0139
 E12811 - N0127 E12822 - N0116 E12811 MOV E 10KT
FCST VA CLD +6 HR: 09/0230Z SFC/FL070 N0126 E12735 - N0133
 E12735 - N0152 E12804 - N0144 E12824 - N0125 E12812 - N0122
 E12751
FCST VA CLD +12 HR: 09/0830Z SFC/FL070 N0125 E12736 - N0133
 E12734 - N0157 E12759 - N0145 E12821 - N0124 E12813
FCST VA CLD +18 HR: 09/1430Z SFC/FL070 N0126 E12736 - N0133
 E12735 - N0148 E12809 - N0132 E12822 - N0114 E12811
RMK: MULTIPLE DISCRETE VA EMISSIONS IDENTIFIABLE ON
 SATELLITE IMAGERY. REGULAR GROUND REPORTS ALSO INDICATE
 DISCRETE ERUPTIONS ARE ONGOING. VA HEIGHT AND MOVEMENT BASED
 ON GROUND REPORTS AND MODEL GUIDANCE.
NXT ADVISORY: NO LATER THAN 20261009/0300Z=

As of the latest advisory, no volcanic ash was observed from Puracé. Forecasts indicate no ash expected in the next 18 hours.
Original VAAC bulletin:

FVXX24 at 16:50 UTC, 08/10/26 from KNES
VA ADVISORY
DTG: 20261008/1648Z

VAAC: WASHINGTON

VOLCANO: PURACE 351060
PSN: N0219 W07624

AREA: COLOMBIA

SOURCE ELEV: 15256 FT AMSL

ADVISORY NR: 2026/595

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

ERUPTION DETAILS: NO VA OBS

EST VA DTG: 08/1620Z

EST VA CLD: SFC/FL190 N0231 W07630 - N0220 W07623
- N0218 W07624 - N0227 W07634 - N0231 W07630 MOV
NW 10KT 

FCST VA CLD +6HR: 08/2230Z SFC/FL190 N0230 W07637
- N0219 W07623 - N0218 W07624 - N0223 W07641 -
N0230 W07637 

FCST VA CLD +12HR: 09/0430Z SFC/FL190 N0228
W07635 - N0220 W07623 - N0217 W07625 - N0222
W07639 - N0228 W07635 

FCST VA CLD +18HR: 09/1030Z NO VA EXP

RMK: NO RCNT VA EMS OBS IN STLT IMAGERY OR
WEBCAM. NO RCNT RPRTS OF VA RCVD. ...COVERDALE

NXT ADVISORY: WILL BE ISSUED BY 20261008/2245Z