FVXX21 KWBC 240650 VOLCANIC ASH ADVISORY STATEMENT ISSUED 0650 UTC 24 FEB 2000 BY THE WASHINGTON VAAC . TUNGURAHUA 00-232 ECUADOR 0128S 7826W . BACKGROUND: TUNGURAHUA ECUADOR (1502-08) SUMMIT HEIGHT 16480 FT (5023 M) . SOURCES OF INFORMATION: GOES-8 INFRARED AND MULTISPECTRAL IMAGERY...GEOPHYSICAL INSTITUTE...GUAYAQUIL MWO...0000 UTC AVIATION MODEL SOUNDING DATA. . ERUPTION DETAILS: OCCASIONAL EMISSIONS OF ASH AND STEAM. . DETAILS OF ASH: SATELLITE IMAGERY THROUGH 24/0615 UTC IS INDICATING A RATHER EXTENSIVE DECK OF CLOUDINESS LEFT OVER FROM EARLIER SHOWER AND THUNDERSTORM ACTIVITY. NO ASH IS DETECTABLE AT THIS TIME. HOWEVER THERE WERE REPORTS AT 23/2225 UTC INDICATING ASH OVER THE VOLCANO REACHING FL240. THUS SOME OF THIS ASH MAY WELL BE EMBEDDED WITHIN THE ADJACENT CLOUD DECKS. . TRAJECTORY: ANY ASH FROM THE SUMMIT TO FL240 SHOULD MOVE TO THE WEST-SOUTHWEST AT 10 TO 20 KNOTS. . OUTLOOK: SEE SIGMETS. . THE NEXT STATEMENT WILL BE ISSUED BY 24/1300 UTC UNLESS NEW INFORMATION IS RECEIVED. . 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