FVXX21 KWBC 232330 VOLCANIC ASH ADVISORY STATEMENT ISSUED 2330 UTC 23 APR 2000 BY THE WASHINGTON VAAC . TUNGURAHUA 00-479 ECUADOR 0128S 7826W . BACKGROUND: TUNGURAHUA ECUADOR (1502-08) SUMMIT HEIGHT 16480 FT (5023 M) . SOURCES OF INFORMATION: GOES-8 VISIBLE...INFRARED AND MULTISPECTRAL IMAGERY...NATIONAL WEATHER SERVICE MODEL FORECAST DATA...GEOPHYSICAL INSTITUTE...GUAYAQUIL MWO. . ERUPTION DETAILS: CONTINUOUS GASES AND ASH EMISSIONS. . DETAILS OF ASH: THE GEOPHYSICAL INSTITUTE HAS A REPORT AS OF 2256 UTC OF ASH OVER THE VOLCANO. IT IS REACHING FL260 AND REPORTEDLY IS MOVING TO THE WEST. THE LAST AVAILABLE SATELLITE IMAGE WAS AS OF 2045 UTC AND IT INDICATED EXTENSIVE CLOUDINESS THROUGHOUT THE REGION WITH NO DEFINABLE AREAS OF ASH. . THE GOES-8 SATELLITE IS CURRENTLY IN RSO TO SUPPORT NATIONAL WEATHER SERVICE OPERATIONS. THEREFORE NO RECENT SATELLITE IMAGERY IS AVAILABLE. . TRAJECTORY: ASH FROM THE SUMMIT TO FL260 IS EXPECTED TO CONTINUE TO MOVE TO THE WEST AT 10 TO 20 KNOTS. . OUTLOOK: SEE SIGMETS. . THE NEXT STATEMENT WILL BE ISSUED BY 24/0600 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