FVXX20 KWBC 170250 VOLCANIC ASH ADVISORY ISSUED: 2000DEC17/0250Z VAAC: WASHINGTON . VOLCANO: POPOCATEPETL 1401-09 LOCATION: 1901N 9837W AREA: MEXICO . SUMMIT ELEVATION: 17930 FT (5465 M) . ADVISORY NUMBER: 2000/185 INFORMATION SOURCE: GOES-8 INFRARED AND MULTISPECTRAL IMAGERY. MEXICO CITY UPPER AIR SOUNDINGS. CENAPRED CAMERA. . ERUPTION DETAILS: INTERMITTENT VENTING OF STEAM AND ASH . DETAILS OF ASH CLOUD: THE LATEST GOES-8 IMAGERY THROUGH 17/0215Z SHOWED NO ASH IN THE VICINITY OF THE VOLCANO...HOWEVER... A HOTSPOT IS STILL VISIBLE IN THE MULTISPECTRAL IMAGERY. . TRAJECTORY: ASH FROM THE SUMMIT TO FL200 WOULD MOVE TOWARD THE SOUTH SOUTHWEST AT UP TO 15 KNOTS. . OUTLOOK: SEE SIGMETS AND VAFTAD. . THE NEXT MESSAGE WILL BE ISSUED BY 17/0900Z. . 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. . BROWN . NNNN