FVXX20 KNES 191845 VOLCANIC ASH ADVISORY ISSUED: 2005APR19/1844Z VAAC: WASHINGTON VOLCANO: ANATAHAN 0804-20 LOCATION: N1621E14540 AREA: MARIANA.ISLANDS SUMMIT ELEVATION: 2585 FT (788 M) ADVISORY NUMBER: 2005/178 INFORMATION SOURCE: GFS MODEL WINDS. RADIOSONDE. GOES-9. ERUPTION DETAILS: CONTINOUS ASH AND STEAM EMISSIONS OBS ASH DATE/TIME: 19/1825Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS SFC/FL100 MOVING TO W 20-25 KNOTS. FCST ASH CLOUD +6H: 20/0000Z SFC/FL100 N1622E14538 - N1620E14538 - N1600E14400 - N1620E14359 - N1622E14538 FCST ASH CLOUD +12H: 20/0600Z SFC/FL100 N1621E14539 - N1620E14538 - N1557E14359 - N1617E14359 - N1621E14539 FCST ASH CLOUD +18H: 20/1200Z SFC/FL100 N1622E14539 - N1621E14538 - N1559E14359 - N1620E14358 - N1622E14539 REMARKS: ASH IS NOT SEEN IN THE LATEST INFRARED OR MULTISPECTRAL IMAGERY ALTHOUGH THERE ARE EXTENSIVE MID AND HIGH CLOUDS PRESENT ...SCHWARTZ NEXT ADVISORY: WILL BE ISSUED BY 2005APR20/0045Z NNNN