Subject: FVFE01 RJTD 101710 FVFE01 RJTD 101710 2009041 1712 VA ADVISORY DTG: 20090210/1710Z VAAC: TOKYO VOLCANO: ASAMAYAMA 0803-11 PSN: N3624E13831 AREA: JAPAN SUMMIT ELEV: 2568M ADVISORY NR: 2009/21 INFO SOURCE: JMA AVIATION COLOUR CODE: NIL ERUPTION DETAILS: ERUPTED AT 20090210/1700Z FL100 EXTD SE OBS VA DTG: NIL OBS VA CLD: IN INVESTIGATING SATELLITE DATA. WINDS ABV THE VOLCANO AT 10/1700Z FL050 300/7KT FL100 270/13KT FROM JMA NWP MODEL. FCST VA CLD +6HR: NIL FCST VA CLD +12HR: NIL FCST VA CLD +18HR: NIL RMK: MAXIMUM VA HEIGHT IN PAST 3 HRS IS FL110 NXT ADVISORY: WE WILL ISSUE FURTHER ADVISORY IF VA IS DETECTED IN SAT ELLITE IMAGERY=