FVXX21 KWBC 041925 VOLCANIC ASH ADVISORY ISSUED: 2001JAN04/1925Z VAAC: WASHINGTON . VOLCANO: POPOCATEPETL 1401-09 LOCATION: 1901N 9837W AREA: MEXICO . SUMMIT ELEVATION: 17930 FT (5465 M) . ADVISORY NUMBER: 2001/004 . INFORMATION SOURCE: GOES-8 VISIBLE AND INFRARED AND MULTISPECTRAL IMAGERY. MEXICO CITY MWO. . ERUPTION DETAILS: ERUPTION AT APPROXIMATELY 04/1900Z. . DETAILS OF ASH CLOUD: THE MEXICO CITY MWO REPORTS AN EXHALATION OF POPOCATEPETL AT 04/1900Z. ASH ESTIMATED TO FL240 IS MOVING TOWARD THE EAST. . TRAJECTORY: ASH TO FL240 WOULD MOVE TOWARDS THE EAST. . OUTLOOK: SEE SIGMETS AND VAFTAD. . THE NEXT MESSAGE WILL BE ISSUED AS SOON AS NEW INFORMATION IS RECEIVED. . 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