Schlagwort: volcano

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

FVXX21 at 12:00 UTC, 19/10/26 from KNES
VA ADVISORY
DTG: 20261019/1158Z

VAAC: WASHINGTON

VOLCANO: REVENTADOR 352010
PSN: S0005 W07739

AREA: ECUADOR

SOURCE ELEV: 11686 FT AMSL

ADVISORY NR: 2026/1095

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

ERUPTION DETAILS: FRQT VA EMS

EST VA DTG: 19/1120Z

EST VA CLD: SFC/FL140 S0003 W07753 - S0004 W07739
- S0005 W07739 - S0009 W07752 - S0003 W07753 MOV
W 5KT 

FCST VA CLD +6HR: 19/1730Z SFC/FL140 S0001 W07755
- S0004 W07739 - S0005 W07739 - S0007 W07755 -
S0001 W07755 

FCST VA CLD +12HR: 19/2330Z SFC/FL140 S0001
W07755 - S0004 W07739 - S0005 W07739 - S0007
W07755 - S0001 W07755 

FCST VA CLD +18HR: 20/0530Z SFC/FL140 S0001
W07752 - S0004 W07739 - S0005 W07739 - S0007
W07752 - S0001 W07752 

RMK: FRQT VA EMS SEEN ON WEBCAM MOVG WSW. NO VA
EMS OBSD ON STLT IMG. NWP MDLS FCST GEN W MVMT
THRU T+18. FL BASED ON WEBCAM ACTIVITY. ...BUTLER

NXT ADVISORY: WILL BE ISSUED BY 20261019/1745Z

Lava flow periods within the Halemaʻumaʻu summit crater since mid-August (image: Sentinel-2)

The eruptive episode of the volcano from mid-August until 18 October, when the latest powerful, 55th lava fountaining activity took place, is clearly visible from the attached satellite imagery timelapse. The red lava continues to layer the Halemaʻumaʻu summit crater as multiple lava fountains remain active.

Satellite image of Krakatau volcano on 18 Oct 2026

An ash plume from Krakatau was reported reaching 3,000 ft (900 m) at 18/1022Z, with movement towards the northwest. Forecasts indicate possible continued ash presence, but satellite detection is limited due to meteorological clouds.
Original VAAC bulletin:

FVAU04 at 17:26 UTC, 18/10/26 from ADRM
VA ADVISORY
DTG: 20261018/1730Z
VAAC: DARWIN
VOLCANO: KRAKATAU 262000
PSN: S0606 E10525
AREA: INDONESIA
SOURCE ELEV: 155M AMSL
ADVISORY NR: 2026/233
INFO SOURCE: HIMAWARI-9, CVGHM
ERUPTION DETAILS: VA TO FL030 REPORTED AT 18/1022Z MOV NW
EST VA DTG: 18/1710Z
EST VA CLD: SFC/FL030 S0610 E10529 - S0620 E10458 - S0553
 E10457 - S0550 E10524 - S0603 E10531 MOV W 05KT
FCST VA CLD +6 HR: 18/2310Z SFC/FL030 S0609 E10529 - S0616
 E10458 - S0552 E10457 - S0551 E10523 - S0604 E10530
FCST VA CLD +12 HR: 19/0510Z SFC/FL030 S0605 E10533 - S0613
 E10529 - S0616 E10456 - S0549 E10457 - S0542 E10525
FCST VA CLD +18 HR: 19/1110Z SFC/FL030 S0604 E10533 - S0615
 E10530 - S0620 E10457 - S0553 E10456 - S0543 E10518
RMK: VA NOT IDENTIFIABLE ON CURRENT SATELLITE IMAGE DUE TO
 MET CLOUD. VA HEIGHT AND MOVEMENT BASED ON HIMAWARI-9
 IMAGERY, GROUND REPORT AND MODEL GUIDANCE. LOW CONFIDENCE IN
 FORECAST DUE TO LIGHT AND VARIABLE WINDS.
NXT ADVISORY: NO LATER THAN 20261018/2330Z=

Explosive activity continues. The Volcanic Ash Advisory Center (VAAC) Darwin warned of a volcanic ash plume rising to an estimated 6000 ft (1800 m), or flight level 060, and moving at 05 kts in NE direction.
Original VAAC bulletin:

FVAU03 at 15:27 UTC, 18/10/26 from ADRM
VA ADVISORY
DTG: 20261018/1530Z
VAAC: DARWIN
VOLCANO: IBU 268030
PSN: N0129 E12738
AREA: INDONESIA
SOURCE ELEV: 1325M AMSL
ADVISORY NR: 2026/1184
INFO SOURCE: HIMAWARI-9, CVGHM
ERUPTION DETAILS: VA TO FL060 REPORTED AT 18/1055Z
EST VA DTG: 18/1510Z
EST VA CLD: SFC/FL060 N0127 E12739 - N0130 E12735 - N0146
 E12744 - N0151 E12757 - N0138 E12801 MOV NE 05KT
FCST VA CLD +6 HR: 18/2110Z SFC/FL060 N0127 E12738 - N0130
 E12735 - N0149 E12748 - N0153 E12802 - N0138 E12801
FCST VA CLD +12 HR: 19/0310Z NO VA EXP
FCST VA CLD +18 HR: 19/0910Z NO VA EXP
RMK: VA NOT IDENTIFIABLE ON CURRENT SATELLITE IMAGE. CVGHM
 REPORTED DISCRETE ERUPTION, VA EXPECTED TO DISSIPATE WITHIN
 6-12HRS. VA HEIGHT AND MOVEMENT BASED ON SATELLITE IMAGERY,
 GROUND REPORTS AND MODEL GUIDANCE.
NXT ADVISORY: NO LATER THAN 20261018/2130Z=

Explosive activity continues. The Volcanic Ash Advisory Center (VAAC) Wellington warned of a volcanic ash plume rising to an estimated 5000 ft (1500 m), or flight level 050, and moving at 05 kts in S direction.
Original VAAC bulletin:

FVPS01 at 14:31 UTC, 18/10/26 from NZKL
VA ADVISORY
DTG: 20261018/1430Z
VAAC: WELLINGTON
VOLCANO: WHAKAARI/WHITE ISLAND 241040
PSN: S3731 E17711
AREA: NEW ZEALAND
SOURCE ELEV: 294M AMSL
ADVISORY NR: 2026/32
INFO SOURCE: WEBCAM, H9 AND GOES SAT IMAGERY
ERUPTION DETAILS: CONTINUOUS LOW LEVEL ERUPTION
OBS VA DTG: 18/1430Z
OBS VA CLD: SFC/FL050 S3735 E17712 - S3727 E17657 - S3703
 E17657 - S3723 E17722 MOV S 05KT
FCST VA CLD +6 HR: 18/2030Z SFC/FL050 S3734 E17711 - S3722
 E17659 - S3704 E17654 - S3709 E17710 - S3728 E17717
FCST VA CLD +12 HR: 19/0230Z SFC/FL050 S3735 E17709 - S3718
 E17651 - S3709 E17711 - S3733 E17718
FCST VA CLD +18 HR: 19/0830Z SFC/FL050 S3737 E17719 - S3738
 E17704 - S3724 E17654 - S3712 E17718
RMK: DIFFUSE VA IDENTIFIABLE IN WEBCAM AND SATELLITE
 IMAGERY. CONTINUOUS LOW-LEVEL EMISSIONS, LIGHT WINDS IN THE
 VICINITY SO EMISSIONS ARE STAYING CLOSE TO THE VOLCANO.
 HEIGHTS AND MOVEMENT BASED ON MODELS.
NXT ADVISORY: NO LATER THAN 20261018/2030Z=