FVXX21 KWBC 192020 . VOLCANIC ASH ADVISORY STATEMENT ISSUED 2020 UTC 19 OCTOBER 1999 BY THE WASHINGTON VAAC . TUNGURAHUA 99-006 ECUADOR 1.47S 78.44W . BACKGROUND: TUNGURAHUA ECUADOR (1502-08) SUMMIT HEIGHT 16480 FT (5023 M) . SOURCES OF INFORMATION: GOES-8 VISIBLE...INFRARED...AND MULTISPECTRAL IMAGERY...SIGMET FROM GUAYAQUIL METEOROLOGICAL WATCH OFFICE...THE GEOPHYSICAL INSTITUTE IN QUITO...U.S. NATIONAL WEATHER SERVICE AVIATION MODEL WINDS. . ERUPTION DETAILS: ERUPTION OCCURED AT 19/1044 UTC. . DETAILS OF ASH: THE GUAYAQUIL METEOROLOGICAL WATCH OFFICE REPORTS THAT A SURFACE STATION LOCATED NEAR THE VOLCANO HAS OBSERVED ASH. CURRENT ALTITUDE OF THE ASH IS UNKNOWN BUT EARLIER TODAY ASH WAS BELIEVED TO BE AT ABOUT FL250. ASH CANNOT BE SEEN IN SATELLITE IMAGERY POSSIBLY BECAUSE OF THE DENSE METEOROLOGICAL CLOUDS COVERING THE AREA. . TRAJECTORY: ASH OF UNKNOWN HEIGHT IS REPORTED TO BE MOVING TO THE EAST SOUTHEAST. . 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 http://www.ssd.noaa.gov/VAAC/washington.html (all lower case except /VAAC/) . OUTLOOK: SEE SIGMETS. . THE NEXT MESSAGE WILL BE ISSUED BY 20/0215 . PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS. . NNNN