FVXX22 KWBC 231515 VOLCANIC ASH ADVISORY ISSUED: 2001JAN23/1515Z VAAC: WASHINGTON . VOLCANO: POPOCATEPETL 1401-09 LOCATION: 1901N 9837W AREA: MEXICO . SUMMIT ELEVATION: 17930 FT (5465 M) . ADVISORY NUMBER: 2001/17 . INFORMATION SOURCE: GOES-8 VISIBLE...INFRARED...AND MULTISPECTRAL IMAGERY. THE MEXICO CITY MET WATCH OFFICE. 12Z UPPER AIR SOUNDINGS FROM MEXICO CITY AND BELIZE INTERNATIONAL AIRPORT. . ERUPTION DETAILS: NEW ERUPTION AROUND 23/1441Z. . DETAILS OF ASH CLOUD: GOES-8 IMAGERY THROUGH 23/1445Z SHOWS A THICK COLUMN OF ASH MOVING SOUTH FROM THE VOLCANO. THIS ASH IS EXTENDING 9 KM (5 NMI) TO 1856N 9836W. THIS ASH IS ESTIMATED TO BE AT FL300 BASED ON UPPER AIR WINDS AND GROUND OBSERVATIONS. . ...AN ADVISORY ON THE ORIGINAL ASH CLOUD NOW MOVING EASTWARD OVER BELIZE WILL BE ISSUED BY 23/1630Z... . TRAJECTORY: UPPER AIR PATTERNS SUGGEST ASH AT OR NEAR POPOCATEPETL AT FL300 TO MOVE SOUTH SOUTHEAST AT 10 KNOTS. . OUTLOOK: SEE SIGMETS AND VAFTAD. . THE NEXT ADVISORY WILL BE ISSUED AROUND 23/1630Z. . 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. . HUGHES/TURK . NNNN