FVXX21 KWBC 040930 VOLCANIC ASH ADVISORY STATEMENT ISSUED 0930 UTC 04 MAY 2000 BY THE WASHINGTON VAAC . TUNGURAHUA 00-523 ECUADOR 0128S 7826W . BACKGROUND: TUNGURAHUA ECUADOR (1502-08) SUMMIT HEIGHT 16480 FT (5023 M) . SOURCES OF INFORMATION: GOES-8 INFRARED AND MULTISPECTRAL IMAGERY...00 UTC AVIATION WINDS FORECAST . ERUPTION DETAILS: CONTINUOUS GAS AND ASH EMISSIONS. . DETAILS OF ASH: GOES-8 INFRARED IMAGERY AT 0845 UTC SHOWED NO DISCERNIBLE ASH. A HOT SPOT INDICATING CONTINUOUS ACTIVITY WAS DETECTED IN THE MULTISPECTRAL IMAGERY. . TRAJECTORY: ASH AT FL190 WOULD MOVE TOWARD THE WEST-SOUTHWEST AT 15 TO 20 KNOTS. . OUTLOOK: SEE SIGMETS. . THE NEXT STATEMENT WILL BE ISSUED BY 04/1530 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. . BROWN . NNNN