FVXX21 KWBC 020730 VOLCANIC ASH ADVISORY ISSUED 0730 UTC 02 JUL 2000 BY THE WASHINGTON VAAC . TUNGURAHUA 00-772 ECUADOR 0128S 7826W . BACKGROUND: TUNGURAHUA ECUADOR (1502-08) SUMMIT HEIGHT 16480 FT (5023 M) . SOURCES OF INFORMATION: GOES-8 INFRARED AND MULTISPECTRAL IMAGERY. WINDS FORECAST FROM THE AVIATION MODEL. GEOPHYSICAL INSTITUTE REPORT. . ERUPTION DETAILS: OCCASIONAL GAS AND ASH EMISSIONS. . DETAILS OF ASH: THE GEOPHYSICAL INSTITUTE REPORTED THAT VOLCANIC ASH WAS LIKELY OVER THE VOLCANO AT 02/0058 UTC. THE ASH WAS UP TO FL240 AND MOVING TOWARDS THE WEST. SATELLITE IMAGERY THROUGH 02/0645 UTC SHOWED EXTENSIVE LOW AND MID LEVEL CLOUDINESS IN THE VICINITY OF THE VOLCANO MAKING IT DIFFICULT TO DETECT ANY ASH. . TRAJECTORY: ANY ASH FROM THE SUMMIT TO FL240 WOULD MOVE TO THE WEST AT 15 TO 20 KTS. . OUTLOOK: SEE SIGMETS. . THE NEXT MESSAGE WILL BE ISSUED BY 02/1330 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. . KARST . NNNN