FVXX20 KWBC 182000 VOLCANIC ASH ADVISORY ISSUED 2000 UTC 18 OCT 2000 BY THE WASHINGTON VAAC . POPOCATEPETL 00-088 MEXICO 1901N 9837W . BACKGROUND: POPOCATEPETL MEXICO (1401-09) SUMMIT HEIGHT 17930 FT (5465 M) . SOURCES OF INFORMATION: GOES-8 VISIBLE..INFRARED IMAGERY AND MULTISPECTRAL IMAGERY. SIX HOUR WIND FORECAST FROM THE 18/1200 UTC AVIATION MODEL. MEXICO CITY UPPER AIR SOUNDING. CENAPRED VOLCANO CAM. . ERUPTION DETAILS: ERUPTION AROUND 18/1937 UTC. . DETAILS OF ASH CLOUD: MEXICO CITY MWO REPORTS AN ERUPTION OF THE VOLCANO AT 18/1937 UTC TO FL210. THERE IS NO EVIDENCE OF THE PLUME IN THE CURRENT SATELLITE IMAGERY THROUGH 18/1945 UTC HOWEVER A PLUME CAN BE SEEN ON THE CENAPRED VOLCANO CAM. . TRAJECTORY: ASH AT FL210 WILL MOVE TOWARDS THE SOUTHWEST AT 10 KNOTS. . OUTLOOK: SEE SIGMETS. . THE NEXT MESSAGE WILL BE ISSUED BY 19/0200 UTC. . REAL TIME SATELLITE IMAGERY AND 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 . NNNN