FVXX20 KWBC 151750 VOLCANIC ASH ADVISORY ISSUED 1750 UTC 15 JUL 2000 BY THE WASHINGTON VAAC . POPOCATEPETL 00-046 MEXICO 1901N 9837W . BACKGROUND: POPOCATEPETL MEXICO (1401-09) SUMMIT HEIGHT 17930 FT (5465 M) . SOURCES OF INFORMATION: GOES-8 VISIBLE AND INFRARED AND MULTISPECTRAL IMAGERY. MEXICO CITY MWO. WIND FORECAST FROM THE AVIATION MODEL. . ERUPTION DETAILS: ASH RELEASE AT 15/1726 UTC. . DETAILS OF ASH CLOUD: MEXICO CITY MWO REPORTED AN ERUPTION WITH ASH OCCURRING AT 15/1726 UTC TO FL210. THE ASH WAS MOVING TO THE SOUTHWEST. SATELLITE IMAGERY THROUGH 15/1732 UTC DOES NOT SHOW ANY ASH AT THIS TIME. . TRAJECTORY: ANY ASH FROM FL180 TO FL210 WILL MOVE TOWARDS THE SOUTHWEST AT 10 TO 15 KTS. . OUTLOOK: SEE SIGMETS . THE NEXT MESSAGE WILL BE SENT AT 15/2350 UTC OR SOONER IF ASH BECOMES VISIBLE IN SATELLITE IMAGERY. . 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. . KARST . NNNN