VA ADVISORY
DTG: 20210527/0256Z
VAAC: TOULOUSE
VOLCANO: NYIRAGONGO 223030
PSN: S0131 E02915
AREA: AFRICA (CENTRAL)
SUMMIT ELEV: 3470M
ADVISORY NR: 2021/21
INFO SOURCE: SAT IMAGERY, OVG VONA
AVIATION COLOUR CODE: RED
ERUPTION DETAILS:ERUPTION AT 20210522/1630Z STRONG SEISMIC ACTIVITY ONGOING
EST VA DTG: 27/0300Z
EST VA CLD: SFC/FL200 S0121 E02927 - S0230 E03000 - S0215 E02827 - S0121 E02830 - S0121 E02927 MOV S 10KT
FCST VA CLD +6 HR: 27/0900Z SFC/FL200 S0124 E02930 - S0312 E03015 - S0251 E02809 - S0100 E02748 - S0124 E02930 
FCST VA CLD +12 HR: 27/1500Z SFC/FL200 S0133 E02948 - S0348 E03018 - S0318 E02809 - S0157 E02712 - S0051 E02751 - S0133 E02948 
FCST VA CLD +18 HR: 27/2100Z SFC/FL200 S0133 E02948 - S0348 E03018 - S0318 E02809 - S0157 E02712 - S0051 E02751 - S0133 E02948 
RMK:  GROUND OBSERVATIONS STILL REPORT VOLCANIC ASH IN THE ATMOSPHERE OVER GOMA. TOP VA CLOUD ESTIMATED AT 6000M. VA DIFFICULT TO IDENTIFY FROM SAT IMAGERY DUE TO CLOUD MASK.
NXT ADVISORY: NO LATER THAN 20210527/0900Z=