FVXX20 KWBC 310405 VOLCANIC ASH ADVISORY ISSUED: 2001JAN31/0405Z VAAC: WASHINGTON . VOLCANO: POPOCATEPETL 1401-09 LOCATION: 1901N 9837W AREA: MEXICO . SUMMIT ELEVATION: 17930 FT (5465 M) . ADVISORY NUMBER: 2001/33 . INFORMATION SOURCE: GOES-8 INFRARED AND MULTISPECTRAL IMAGERY. MEXICO CITY METEOROLOGICAL WATCH OFFICE. . ERUPTION DETAILS: ASH EMISSIONS VISIBLE IN CENAPRED CAMERA BETWEEN ABOUT 2130Z AND 2145Z. . DETAILS OF ASH CLOUD: NO ASH IS VISIBLE IN THE LATEST GOES-8 SATELLITE IMAGERY AT 0345Z. ASH FROM THE EARLIER EMISSIONS MOVED TOWARD THE NORTHEAST AND HAS BECOME TOO DIFFUSED TO DETECT. . TRAJECTORY: ASH TO FL230 MOVED TOWARD THE NORTH NORTHEAST AT 30 KNOTS. . OUTLOOK: SEE SIGMETS. . THE IS THE FINAL ADVISORY FOR 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. . BROWN . NNNN