Merapi Volcano Volcanic Ash Advisory: VA TO APPROXIMATELY FL100 AT 20/1000Z OBS VA DTG: 20/1017Z
Wed, 20 Jan 2021, 10:30
10:30 AM | BY: VNFVAU01 at 10:17 UTC, 20/01/21 from ADRM
VA ADVISORY
DTG: 20210120/1017Z
VAAC: DARWIN
VOLCANO: MERAPI 263250
PSN: S0733 E11027
AREA: INDONESIA
SUMMIT ELEV: 2968M
ADVISORY NR: 2021/3
INFO SOURCE: WEB-CAM
AVIATION COLOUR CODE: ORANGE
ERUPTION DETAILS: VA TO APPROXIMATELY FL100 AT 20/1000Z
OBS VA DTG: 20/1017Z
OBS VA CLD: VA NOT IDENTIFIABLE FM SATELLITE DATA WIND
SFC/FL100 VRB05KT
FCST VA CLD +6 HR: 20/1617Z NOT AVBL
FCST VA CLD +12 HR: 20/2217Z NOT AVBL
FCST VA CLD +18 HR: 21/0417Z NOT AVBL
RMK: ASH AND SMOKE DISCERNIBLE ON WEBCAM FLOWING DOWNSTREAM
OF VOLCANO AND LOCALISED AROUND THE SUMMIT. PYROCLASTIC FLOW
CONTINUES TO SLIDE FROM THE SUMMIT. VA WAS NOT DISCERNIBLE
ON SAT IMG DUE TO MET CLOUD. ADVISORY WILL BE UPDATED IF NEW
INFO IS RECEIVED.
NXT ADVISORY: NO FURTHER ADVISORIES=
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Wed, 20 Jan 2021, 08:37
Merapi volcano (Java, Indonesia): pyroclastic flow this morning
The eruption continues on its gradually increasing trend. Pyroclastic flows - turbulent and hot avalanches of hot lava rocks, ash and volcanic gasses mixed together - are being released from the growing dome and now descend the SW flank of the volcano. ... Read all
Wed, 20 Jan 2021, 06:00
Merapi volcano (Central Java, Indonesia) - Smithsonian / USGS Weekly Volcanic Activity Report for 20 January-26 January 2021 (New Activity / Unrest)
BPPTKG reported that the “2021 lava dome” continued to grow just below Merapi's SW rim during 15-21 January, producing a total of 282 incandescent lava avalanches that traveled as far as 1 km down the Krasak and Boyong river drainages on the SW flank. Pyroclastic flows were recorded 19 times and descended the SW flanks as far as 1.8 km. A comparison of photos taken on 14 and 21 January showed that the morphological changes in the summit area were attributed to the emergence of new lava domes. ... Read all
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