FVXX20 KWBC 010600 VOLCANIC ASH ADVISORY ISSUED: 2000DEC01/0600 VAAC: WASHINGTON . VOLCANO: POPOCATEPETL 1401-09 LOCATION: 1901N 9837W AREA: MEXICO . SUMMIT ELEVATION: 17930 FT (5465 M) . ADVISORY NUMBER: 2000/143 INFORMATION SOURCE: MEXICO CITY METEOROLOGICAL WATCH OFFICE GOES-8 INFRARED AND MULTISPECTRAL IMAGERY. 6 HOUR WIND FORECAST FROM THE AVIATION MODEL. . ERUPTION DETAILS: LATEST EXHALATION AT 01/0408Z. . DETAILS OF ASH CLOUD: THE MEXICO CITY METEOROLOGICAL WATCH OFFICE REPORTS THAT THE VOLCANO HAS OCCASIONAL EXHALATIONS WITH THE LATEST EXHALATION AT 01/0408Z. THE ASH PRODUCED IS ESTIMATED UP TO FL210. THIS LATEST EXHALATION IS NOT DETECTED IN SATELLITE IMAGERY AT THIS TIME. THE ASH FROM THE EARLIER ERUPTION AT 30/1655Z IS NO LONGER DISCERNIBLE IN SATELLITE IMAGERY. . TRAJECTORY: ANY ASH FROM THE SUMMIT TO FL210 WOULD MOVE TO THE EAST AT 20 TO 40 KNOTS. . OUTLOOK: SEE SIGMETS AND VAFTAD. . THE NEXT ADVISORY WILL BE ISSUED BY 01/1200Z. . 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. . KARST . NNNN