FVXX22 KNES 100444 VOLCANIC ASH ADVISORY ISSUED: 2006JUN10/0443Z VAAC: WASHINGTON VOLCANO: ST. HELENS 1201-05 LOCATION: N4611 W12210 AREA: US-WASHINGTON SUMMIT ELEVATION: 8363 FT (2549 M) ADVISORY NUMBER: 2006/005 INFORMATION SOURCE: GOES-10. NAM WINDS. USGS. ERUPTION DETAILS: ROCKFALL AT 0405Z OBS ASH DATE/TIME: 10/0415Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS SFC/FL120 MOVING TO S 10-15 KNOTS. FCST ASH CLOUD +6H: 10/1030Z FCST ASH CLOUD +12H: 10/1630Z FCST ASH CLOUD +18H: 10/2230Z REMARKS: THE USGS CASCADES VOLCANO OBSERVATORY INDICATES A SEISMIC SIGNAL WAS DETECTED AT MT ST HELENS AT 0405Z AND WAS LIKELY ASSOCIATED WITH A ROCKFALL. THIS HAS OFTEN RESULTED IN ASH BEING EJECTED A FEW THOUSAND FEET ABOVE THE RIM OF THE CRATER. THE GOES-10 0415Z MULTISPECTRAL IMAGE SHOWS A SINGLE POINT OF LIKELY ASH OVER THE SUMMIT. IT IS EXPECTED THAT THE ASH WILL QUICKLY FALL OUT CLOSE TO THE VOLCANO SO THIS WILL BE THE ONLY STATEMENT ISSUED FOR THIS EVENT UNLESS CONDITIONS WARRANT. ...RUMINSKI NEXT ADVISORY: NO FURTHER ADVISORIES NNNN