FVXX23 KWBC 282200 VOLCANIC ASH ADVISORY STATEMENT ISSUED 2200 UTC 28 JAN 2000 BY THE WASHINGTON VAAC . POPOCATEPETL 00-005 MEXICO 1901N 9837W . BACKGROUND: POPOCATEPETL MEXICO (1401-09) SUMMIT HEIGHT 17930 FT (5465 M) . SOURCES OF INFORMATION: GOES-8 VISIBLE INFRARED AND MULTISPECTRAL IMAGERY. MEXICO CITY MWO. MEXICO CITY UPPER AIR WINDS. . ERUPTION DETAILS: AIRCRAFT REPORTING SULFUR ODOR NEAR MEXICO CITY. . DETAILS OF ASH CLOUD: MEXICO CITY MWO REPORTS THAT AN AIRCRAFT NEAR MEXICO CITY REPORTED SMELLING SULFUR. NO ASH IS CURRENTLY BEING DETECTED IN SATELLITE IMAGERY THROUGH 28/2115 UTC. HOWEVER IMAGERY SHOWS CONVECTIVE TYPE CLOUDINESS AROUND THE SUMMIT THEREFORE MAKING ASH DETECTION DIFFICULT. . TRAJECTORY: ANY ASH RELEASED FROM THE SUMMIT..FL180 OR HIGHER.. WOULD DRIFT TO THE EAST AT 25-35 KTS. . OUTLOOK: SEE LATEST SIGMETS. . THE NEXT STATEMENT WILL BE ISSUED BY 29/0400 UTC. . 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/) . PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS. . WALTER/SCHWARTZ/RUMINSKI . NNNN