FVXX20 KNES 311221 VA ADVISORY DTG: 20071231/1220Z VAAC: WASHINGTON VOLCANO: ANATAHAN 0804-20 PSN: N1621 E14539 AREA: MARIANA.ISLANDS SUMMIT ELEV: 2585 FT (788 M) ADVISORY NR: 2007/002 INFO SOURCE: MTSAT. ERUPTION DETAILS: STEAM/GAS VENTING WITH LIGHT ASH OBS VA DTG: 31/1130Z OBS VA CLD: VA NOT IDENTIFIABLE FROM SATELLITE DATA. FCST VA CLD +6HR: NOT AVBL FCST VA CLD +12HR: NOT AVBL FCST VA CLD +18HR: NOT AVBL RMK: ASH CANNOT BE SEEN IN SATELLITE IMAGERY UNDER CLEAR CONDITIONS. ...SALEMI NXT ADVISORY: NO FURTHER ADVISORIES NNNN