FVXX21 KWBC 150425 VOLCANIC ASH ADVISORY ISSUED: 2001JUL15/0425Z VAAC: WASHINGTON . VOLCANO: POPOCATEPETL 1401-09 LOCATION: 1901N 9837W AREA: MEXICO . SUMMIT ELEVATION: 17930 FT (5465 M) . ADVISORY NUMBER: 2001/85 . INFORMATION SOURCE: MEXICO CITY METEOROLOGICAL WATCH OFFICE. GOES-8 INFRARED AND MULTISPECTRAL SATELLITE IMAGERY. MEXICO CITY UPPER AIR SOUNDING. ERUPTION DETAILS: THE MEXICO CITY METEOROLOGICAL WATCH OFFICE REPORTED AN ERUPTION AT 15/0403Z. NO HEIGHT ASSIGNMENT WAS GIVEN. . DETAILS OF ASH CLOUD: NO ASH CAN BE SEEN IN SATELLITE IMAGERY THROUGH 15/0415Z ALTHOUGH THERE ARE EXTENSIVE CLOUDS PRESENT. . TRAJECTORY: ANY ASH UP TO FL240 IT WOULD MOVE TOWARD THE NORTH AT 15 TO 20 KNOTS. . OUTLOOK: SEE SIGMETS THIS IS THE ONLY ADVISORY ON THIS EVENT UNLESS MORE INFORMATION BECOMES AVAILABLE. . 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. . NNNN