FVXX22 KWBC 181345 VOLCANIC ASH ADVISORY ISSUED 1345 UTC 18 JUL 2000 BY THE WASHINGTON VAAC . POPOCATEPETL 00-049 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. CENAPRED VOLCANO CAM. 6 HOUR WIND FORECAST FROM THE 18/0600 UTC AVIATION MODEL. . ERUPTION DETAILS: ASH RELEASE AT 18/1318 UTC. . DETAILS OF ASH CLOUD: MEXICO CITY MWO REPORTS AN ERUPTION OCCURRING AT 18/1318 UTC WITH ASH TO 800 METERS ABOVE THE SUMMIT LEVEL OR FL200 AND MOVING TOWARD THE SOUTHWEST. CENAPRED VOLCANO CAM CURRENTLY SHOWS SOME MINOR ACTIVITY. . TRAJECTORY: ASH AT FL200 WILL MOVE TOWARD THE SOUTHWEST AT 10-15 KNOTS. . OUTLOOK: SEE SIGMETS . THE NEXT MESSAGE WILL BE ISSUED BY 18/2000 UTC. . REAL TIME SATELLITE IMAGERY ALONG WITH THIS AND OTHER 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. . WALTER/ORRISON . NNNN