FVXX20 KNES 291418 VOLCANIC ASH ADVISORY ISSUED: 2006MAY29/1416Z VAAC: WASHINGTON VOLCANO: ANATAHAN 0804-20 LOCATION: N1621 E14539 AREA: MARIANA.ISLANDS SUMMIT ELEVATION: 2585 FT (788 M) ADVISORY NUMBER: 2006/007 INFORMATION SOURCE: MTSAT. GFS WINDS. PILOT REPORT. AIRS SO2 DETECTION ERUPTION DETAILS: INCREASED ACTIVITY POSSIBLY STARTING AROUND 0330Z OBS ASH DATE/TIME: 29/1233Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS SFC/FL100 MOVING TO SW 10 KNOTS. FCST ASH CLOUD +6H: 29/1830Z FCST ASH CLOUD +12H: 30/0030Z FCST ASH CLOUD +18H: 30/0630Z REMARKS: A 29/0722Z PILOT REPORT OF FL100 ASH AND SOMEWHAT THICKER THAN USUAL ASH PLUME APPEARANCE IN VISIBLE IMAGERY SUGGESTED POSSIBLY INCREASED ASH EMISSIONS FROM ANATAHAN. A MORE RECENT SATELLITE BASED INDICATION OF ELEVATED SO2 LEVELS FAR SOUTHWEST OF THE VOLCANO ALSO INDICATES INCREASED ACTIVITY. HOWEVER SINCE NIGHTFALL WITH THE LOSS OF VISIBLE SATELLITE IMAGERY NO ASH CAN BE DETECTED IN IMAGERY. ... NEXT ADVISORY: WILL BE ISSUED BY 2006MAY29/2015Z NNNN