FVXX21 KWBC 161900 VOLCANIC ASH ADVISORY ISSUED: 2001FEB16/1900Z VAAC: WASHINGTON . VOLCANO: POPOCATEPETL 1401-09 LOCATION: 1901N 9837W AREA: MEXICO . SUMMIT ELEVATION: 17930 FT (5465 M) . ADVISORY NUMBER: 2001/49 . INFORMATION SOURCE: GOES-8 VISIBLE INFRARED AND MULTISPECTRAL IMAGERY. WINDS FORECAST FROM THE AVIATION MODEL. . ERUPTION DETAILS: ASH EMISSION AT 15/2142Z. . DETAILS OF ASH CLOUD: NO ASH CAN BE SEEN IN SATELLITE IMAGERY THROUGH 1825Z. THE ASH TO FL260 OBSERVED EARLIER TODAY OVER THE GULF OF MEXICO IS NOW TOO FAINT TO SEE IN SATELLITE IMAGERY. . TRAJECTORY: UPPER AIR PATTERNS SUGGEST THAT ANY REMAINING THIN ASH TO FL260 WOULD MOVE TO THE EAST NORTHEAST AT ABOUT 20 KNOTS. . OUTLOOK: SEE SIGMETS. . THIS WILL BE THE LAST MESSAGE ON THIS EVENT. . REAL TIME SATELLITE IMAGERY AND VOLCANIC ASH ADVISORIES OFTEN ACCOMPANIED BY A MAP DEPICTING ASH LOCATION ARE AVAILABLE AT INTERNET URL ADDRESS HTTP://WWW.SSD.NOAA.GOV/VAAC/WASHINGTON.HTML (ALL LOWER CASE EXCEPT /VAAC/) . PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS. . NNNN