FVXX21 KWBC 021330 VOLCANIC ASH ADVISORY ISSUED 1330 UTC 02 JUL 2000 BY THE WASHINGTON VAAC . TUNGURAHUA 00-773 ECUADOR 0128S 7826W . BACKGROUND: TUNGURAHUA ECUADOR (1502-08) SUMMIT HEIGHT 16480 FT (5023 M) . SOURCES OF INFORMATION: GOES-8 VISIBLE...INFRARED AND MULTISPECTRAL IMAGERY. WINDS FORECAST FROM THE AVIATION MODEL. GEOPHYSICAL INSTITUTE REPORT. . ERUPTION DETAILS: OCCASIONAL GAS AND ASH EMISSIONS. . DETAILS OF ASH: SATELLITE IMAGERY THROUGH 02/1245 UTC SHOWED EXTENSIVE CLOUD COVER OVER MOST OF THE COUNTRY MAKING IT DIFFICULT TO DETECT ANY ASH. SURFACE OBSERVATION OF THE VOLCANO IS ALSO DIFFICULT DUE TO THE CLOUD COVER. THE LAST REPORTED NEAR SUMMIT PLUME HEIGHT WAS AROUND FL250. . TRAJECTORY: ANY ASH FROM THE SUMMIT TO FL250 IS FORECAST TO MOVE WEST AT AROUND 20 KNOTS. . OUTLOOK: SEE SIGMETS. . THE NEXT MESSAGE WILL BE ISSUED BY 02/1930 UTC. . REAL TIME SATELLITE IMAGERY ALONG WITH THIS AND OTHER VOLCANIC ASH ADVISORIES 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