FVXX20 KWBC 200130 VOLCANIC ASH ADVISORY ISSUED: 2001DEC20/0130Z VAAC: WASHINGTON . VOLCANO: POPOCATEPETL 1401-09 LOCATION: 1901N 9837W AREA: MEXICO . SUMMIT ELEVATION: 17930 FT (5465 M) . ADVISORY NUMBER: 2001/113 . INFORMATION SOURCE: GOES-8 INFRARED AND MULTISPECTRAL IMAGERY. MEXICO CITY MWO REPORT. SIX HOUR WIND FORECAST FROM THE 19/1800Z AVIATION MODEL. . ERUPTION DETAILS: SMALL EXHALATION AT 19/1821Z. . DETAILS OF ASH CLOUD: ASH IS NOT SEEN IN THE SATELLITE IMAGERY THROUGH 20/0045Z. . TRAJECTORY: ANY REMAINING ASH AT FL250 WILL MOVE TOWARDS THE NORTHEAST AT 25 KNOTS. . OUTLOOK: SEE SIGMETS. . NEXT ADVISORY: NEXT ADVISORY: NO FURTHER ADVISORIES. . WALTER . NNNN