FVXX20 KWBC 281825 VOLCANIC ASH ADVISORY ISSUED: 2001JAN28/1825Z VAAC: WASHINGTON . VOLCANO: POPOCATEPETL 1401-09 LOCATION: 1901N 9837W AREA: MEXICO . SUMMIT ELEVATION: 17930 FT (5465 M) . ADVISORY NUMBER: 2001/27 . INFORMATION SOURCE: GOES-8 VISIBLE AND INFRARED AND MULTISPECTRAL IMAGERY. MEXICO CITY METEOROLOGICAL WATCH OFFICE. . ERUPTION DETAILS: ERUPTION AT 28/1755Z . DETAILS OF ASH CLOUD: THE MEXICO CITY METEOROLOGICAL WATCH OFFICE REPORTS AN ERUPTION OF ASH AND STEAM TO FL230 AT 1755Z MOVING TO THE NORTHEAST AT 10-15 KNOTS. GOES8 IMAGERY AT 1815Z SHOWS A PLUME EXTENDING 7 KM (4NMI) TO THE NORTHEAST OF THE SUMMIT. TRAJECTORY: ASH AT FL230 WOULD MOVE NORTHEAST AT 10-15 KNOTS. . OUTLOOK: SEE SIGMETS. . THE NEXT ADVISORY WILL BE ISSUED BY 29/0030Z. . 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