FVXX21 KWBC 260300 VOLCANIC ASH ADVISORY STATEMENT ISSUED 0300 UTC 26 JAN 2000 BY THE WASHINGTON VAAC . TUNGURAHUA 00-103 ECUADOR 0128S 7826W . BACKGROUND: TUNGURAHUA ECUADOR (1502-08) SUMMIT HEIGHT 16480 FT (5023 M) . SOURCES OF INFORMATION: GOES-8 VISIBLE INFRARED AND MULTISPECTRAL IMAGERY...WIND FORECAST FROM THE 25/1800 UTC AVIATION MODEL...GUAYAQUIL METEOROLOGICAL WATCH OFFICE SIGMET . ERUPTION DETAILS: OCCASIONAL EMISSIONS OF ASH AND STEAM. . DETAILS OF ASH: NO ASH CAN BE SEEN IN SATELLITE IMAGERY THROUGH 26/0115 UTC POSSIBLY BECAUSE OF THE LOW AND MIDDLE LEVEL WEATHER CLOUDS IN THE VICINITY. THE GUAYAQUIL MWO SIGMET NOTES THAT LOW VOLCANIC ASH WAS OBSERVED BY STATIONS IN THE AREA OF THE VOLCANO. . TRAJECTORY: UPPER AIR PATTERNS ARE LIGHT AND VARIABLE BETWEEN THE SUMMIT AND FL250. ANY ASH BETWEEN THE SUMMIT AND FL250 WOULD MOVE AT LESS THAN 10 KNOTS. MOVEMENT TO THE WEST IS LIKELY. . OUTLOOK: SEE SIGMETS. . THE NEXT STATEMENT WILL BE ISSUED BY 26/0900 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. . NNNN