FVXX23 KWBC 291645 . VOLCANIC ASH ADVISORY STATEMENT-CORRECTION ISSUED 1645 UTC 29 NOV 1999 BY THE WASHINGTON VAAC . POPOCATEPETL 99-106 MEXICO 19.02N 98.62W . BACKGROUND: POPOCATEPETL MEXICO (1401-09) SUMMIT HEIGHT 17930 FT (5465 M) . SOURCES OF INFORMATION: GOES-8 VISIBLE AND INFRARED AND MULTISPECTRAL SATELLITE IMAGERY. MEXICO CITY METEOROLOGICAL WATCH OFFICE . ERUPTION DETAILS: THE METEOROLOGICAL WATCH OFFICE RECEIVED A SIGMET ABOUT VOLCANIC ASH BETWEEN FL170 TO FL220 TO THE NORTH AND EAST OF THE SUMMIT FOR 15NM . DETAILS OF ASH CLOUD: SATELLITE IMAGERY THROUGH 29/1615 UTC SHOWS A HOT SPOT IN NEAR INFRARED IMAGERY BUT NO VOLCANIC PLUME IN VISIBLE OR MULTISPECTRAL IMAGERY. . TRAJECTORY: ACCORDING TO UPPER AIR SOUNDING ANY VOLCANIC ASH WILL MOVE TO THE NORTH NORTHEAST AT 25 KTS. . 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. . THE NEXT MESSAGE WILL BE AT 29/2245 UTC. . PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS. . KARST/SAB/NOAA/NESDIS . NNNN