FVXX21 KWBC 260800 . VOLCANIC ASH ADVISORY STATEMENT ISSUED 0800 UTC 26 OCTOBER 1999 BY THE WASHINGTON VAAC . TUNGURAHUA 99-032 ECUADOR 1.47S 78.44W . BACKGROUND: TUNGURAHUA ECUADOR (1502-08) SUMMIT HEIGHT 16480 FT (5023 M) . SOURCES OF INFORMATION: GOES-8 INFRARED AND MULTISPECTRAL IMAGERY..GEOPHYSICAL INSTITUTE AND NATIONAL WEATHER SERVICE NUMERICAL MODELS . ERUPTION DETAILS: CONTINUOUS VENTING OF ASH AND STEAM. . DETAILS OF ASH: GOES-8 SATELLITE IMAGERY THROUGH 26/0715 UTC DOES NOT SHOW ANY ASH SIGNATURES. THE LAST VISIBLE IMAGE OF THE DAY (25/2215 UTC) DID HAVE A THIN PLUME EXTENDING SOUTH SOUTHWEST OF THE VOLCANO. THE QUITO GEOPHYSICAL INSTITUTE THROUGH THE GUAYAQUIL MWO REPORTS ASH FROM THE VOLCANO AT FL200 MOVING TOWARD THE SOUTHWEST AT 10KT FROM THE VOLCANO. . TRAJECTORY: NATIONAL WEATHER SERVICE NUMERICAL METEOROLOGICAL MODELS PREDICT THAT ANY ASH AT FL200 WOULD MOVE TOWARD THE SOUTHWEST AT 10-15KT. . 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 STATEMENT WILL BE ISSUED AROUND 26/1400 UTC. . . PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS. . SCHWARTZ NNNN