FVXX20 KNES 210550 CCA VOLCANIC ASH ADVISORY -CORRECTION ISSUED: 2005JUL21/0550Z VAAC: WASHINGTON VOLCANO: ANATAHAN 0804-20 LOCATION: N1621E14540 AREA: MARIANA.ISLANDS SUMMIT ELEVATION: 2585 FT (788 M) ADVISORY NUMBER: 2005/570 INFORMATION SOURCE: HONOLULU MWO. GFS MODEL WINDS. GOES-9. ERUPTION DETAILS: ERUPTION AT 20/2215Z OBS ASH DATE/TIME: 21/0413Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS SFC/FL300 MOVING TO N 10-20 KNOTS. FL300/FL510 MOVING TO SE 10-15 KNOTS. FCST ASH CLOUD +6H: 21/1000Z FCST ASH CLOUD +12H: 21/1600Z FCST ASH CLOUD +18H: 21/2200Z REMARKS: SATELLITE IMAGERY IS STILL TOO CLOUDY TO DETERMINE THE EXTENT OF THE ASH PLUME. WINDS BETWEEN FL300 AND FL510 ARE GENERALLY MOVING EAST TO SOUTHEAST. CORRECTION TO WIND DIRECTION. ... NEXT ADVISORY: WILL BE ISSUED BY 2005JUL21/1145Z NNNN