FVXX21 KWBC 230425 VOLCANIC ASH ADVISORY STATEMENT ISSUED 0425 UTC 23 MAY 2000 BY THE WASHINGTON VAAC . TUNGURAHUA 00-602 ECUADOR 0128S 7826W . BACKGROUND: TUNGURAHUA ECUADOR (1502-08) SUMMIT HEIGHT 16480 FT (5023 M) . SOURCES OF INFORMATION: GOES-8 INFRARED AND MULTISPECTRAL IMAGERY. THE GEOPHYSICAL INSTITUTE IN QUITO. 1800 UTC AVIATION MODEL FORECAST DATA. . ERUPTION DETAILS: NEARLY CONTINUOUS GAS AND ASH EMISSIONS. . DETAILS OF ASH: GOES-8 IMAGERY THROUGH 0345 UTC DOES NOT SHOW ANY ASH. THERE ARE SOME SCATTERED TO BROKEN REGIONS OF CLOUDINESS HELPING TO OBSCURE VIEW OF THE SUMMIT BUT THERE HAVE BEEN NO RECENT REPORTS OF ASH. THE GEOPHYSICAL INSTITUTE LAST REPORTED ASH OVER THE VOLCANO AT 22/1425 UTC TO A HEIGHT OF FL230. . TRAJECTORY: ANY ASH FROM THE SUMMIT TO FL230 WOULD MOVE WEST AT 15 TO 20 KNOTS. . OUTLOOK: SEE SIGMETS. . THE NEXT STATEMENT WILL BE ISSUED BY 23/1030 UTC. . 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/) . PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS. . ORRISON . NNNN