FVXX22 KWBC 161430 . VOLCANIC ASH ADVISORY STATEMENT-CORRECTION FOR MESSAGE NUMBER ISSUED 1430 UTC 16 JULY 1999 BY THE WASHINGTON VAAC . POPOCATEPETL 99-083 MEXICO 19.0N 98.6W . BACKGROUND: POPOCATEPETL MEXICO (1401-09) SUMMIT HEIGHT 17930 FT (5465 M) . SOURCES OF INFORMATION: GOES-8 INFRARED AND MULTI-SPECTRAL IMAGERY 16/1200 UTC MEXICO CITY SOUNDING . ERUPTION DETAILS: MEXICO CITY MWO REPORTED AN ERUPTION AT 16/1410 UTC. . DETAILS OF ASH CLOUD: SATELLITE IMAGERY THROUGH 1415 INDICATES A VERY SMALL HINT OF AN ERUPTION WITH ASH ONLY IN THE IMMEDIATE VICINITY OF THE VOLCANO. A SMALL ASH AND STEAM PLUME WAS VISIBLE ON THE CENEPRED INTERNET SITE. THIS ASH IS BETWEEN FL180 AND FL210 MOVING TO THE WEST NORTH WEST AT ABOUT 7 KTS. . TRAJECTORY: UPPER AIR DATA SUGGEST THAT ASH WOULD MOVE TOWARD THE WEST NORTHWEST AT 7 TO 10 KTS. . REAL TIME SATELLITE IMAGERY ALONG WITH THIS AND OTHER VOLCANIC ASH ADVISORY STATEMENTS OFTEN ACCOMPANIED BY A MAP DEPICTING ASH LOCATION ARE AVAILABLE AT INTERNET URL ADDRESS www.ssd.noaa.gov/VAAC/washington.html (all lower case except /VAAC/) . OUTLOOK: SEE SIGMETS. . THE NEXT MESSAGE WILL BE ISSUED BY 16/2030 UTC UNLESS ADDITIONAL INFORMATION BECOMES AVAILABLE. . PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS. . NNNN