FVXX20 KNES 310406 VOLCANIC ASH ADVISORY ISSUED: 2006MAY31/0405Z VAAC: WASHINGTON VOLCANO: ANATAHAN 0804-20 LOCATION: N1621 E14539 AREA: MARIANA.ISLANDS SUMMIT ELEVATION: 2585 FT (788 M) ADVISORY NUMBER: 2006/009 INFORMATION SOURCE: HONOLULU MWO. MTSAT. PILOT REPORT. USGS. ERUPTION DETAILS: NO ASH JUST GAS EMISSIONS. OBS ASH DATE/TIME: 31/0300Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS SFC/FL100 MOVING TO SW 10-15 KNOTS. FCST ASH CLOUD +6H: 31/0900Z FCST ASH CLOUD +12H: 31/1500Z FCST ASH CLOUD +18H: 31/2100Z REMARKS: THERE HAS AGAIN BEEN A PILOT REPORT OF ASH EMISSION FROM THE VOLCANO. THE VOLCANO OBSERVATORY REPORTS THERE HAS BEEN NO INCREASE IN SEISMIC ACTIVITY FOR DAYS WITH ONLY EMISSION OF STEAM AND OTHER GASES BEING OBSERVED. IF ANY LIGHT ASH WAS CARRIED ALOFT IT WOULD FALL OUT INSIDE THE CRATER AND NOT TRAVEL DOWNWIND. IN CURRENT IMAGERY ONLY A VERY FAINT PLUME OF GASES CAN BE SEEN AND NO HOTSPOT DETECTED. ...SWANSON NEXT ADVISORY: NO FURTHER ADVISORIES NNNN