FVXX21 KWBC 271410 VOLCANIC ASH ADVISORY STATEMENT ISSUED 1410 UTC 27 JAN 2000 BY THE WASHINGTON VAAC . TUNGURAHUA 00-109 ECUADOR 0128S 7826W . BACKGROUND: TUNGURAHUA ECUADOR (1502-08) SUMMIT HEIGHT 16480 FT (5023 M) . SOURCES OF INFORMATION: GOES-8 VISIBLE INFRARED AND MULTISPECTRAL SATELLITE IMAGERY. GEOPHYSICAL INSTITUTE IN QUITO . ERUPTION DETAILS: OCCASIONAL EMISSIONS OF ASH AND STEAM. . DETAILS OF ASH: GOES-8 SATELLITE DATA THROUGH 27/1345 UTC SHOWED MID-LEVEL CLOUDS IN THE VICINITY OF THE SUMMIT PRECLUDING THE DETECTION OF ASH BELOW THE CLOUD DECK. THE GEOPHYSICAL INSTITUTE INDICATED THAT WHILE OCCASIONAL EMISSIONS OF ASH TO FL200 HAVE OCCURRED THERES BEEN LITTLE ACTIVITY IN THE LAST 48 HOURS. THIS INFORMATION IN COMBINATION WITH THE FACT THAT SATELLITE DATA HAS NOT DETECTED AN ASH PLUME FOR 36 HOURS IS THE BASIS FOR ENDING THE CURRENT WARNING IN FAVOR OF WATCH STATEMENTS. IT SHOULD BE EMPHASIZED THAT OCCASIONAL EMISSIONS OF ASH CONTINUE TO OCCUR AND THAT A LARGER ERUPTION CAPABLE OF SENDING ASH 3 TO 4 KM ABOVE THE SUMMIT CAN OCCUR AT ANY TIME WITH LITTLE OR NO WARNING. . TRAJECTORY: NIL. . OUTLOOK: SEE SIGMETS. . THIS IS THE FINAL WARNING STATEMENT ON THIS EVENT. A WATCH STATEMENT WILL BE ISSUED AROUND 28/1730 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. . TURK . NNNN