FVXX23 KWBC 041745 . VOLCANIC ASH ADVISORY STATEMENT ISSUED 1745 UTC 04 NOV 1999 BY THE WASHINGTON VAAC . POPOCATEPETL 99-101 MEXICO 19.0N 98.6W . BACKGROUND: POPOCATEPETL MEXICO (1401-09) SUMMIT HEIGHT 17930 FT (5465 M) . SOURCES OF INFORMATION: MEXICO CITY METEOROLOGICAL WATCH OFFICE ...POPO CAMERA. 12Z UPPER LEVEL WIND SOUNDING. . ERUPTION DETAILS: ERUPTION OCCURRED AT 04/1711 UTC. . DETAILS OF ASH CLOUD: THE MWO IN MEXICO CITY CALLED TO REPORT THE ERUPTION OF THE POPOCATEPETL VOLCANO. THE DARK ERUPTION COULD BE SEEN FROM THE CENAPRED CAMERA POINTED AT THE VOLCANO. THE ESTIMATED HEIGHT OF THE ERUPTION IS TO FL290. TRAJECTORY: ANY ASH BETWEEN FL190 AND FL240 WILL MOVE SOUTHWESTERLY AROUND 10 KNOTS AND SWINGING AROUND TO NORTHEAST TO EAST BETWEEN FL280 TO FL300 AROUND 20 KNOTS. . REAL TIME SATELLITE IMAGERY ALONG WITH THIS AND OTHER VOLCANIC ASH ADVISORY STATEMENTS 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/) . OUTLOOK: SEE SIGMETS AND VAFTAD. . THE NEXT STATEMENT WILL BE ISSUED AROUND 04/1815 UTC WHEN SATELLITE IMAGERY CAN BE ANALYZED. . PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS. SCHWARTZ/SAB/NOAA/NESDIS . NNNN