FVXX21 KWBC 302200 VOLCANIC ASH ADVISORY ISSUED 2200 UTC 30 JUN 2000 BY THE WASHINGTON VAAC . TUNGURAHUA 00-765 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 30/2115 UTC SHOWS EXTENSIVE LOW AND MID LEVEL CLOUDINESS AROUND THE VOLCANO MAKING ANY DETECTION OF ASH DIFFICULT. THE GEOPHYSICAL INSTITUTE REPORTS THAT THERE HAVE BEEN MINOR TREMORS TODAY AND NO LARGE EXPLOSIONS BUT CONDITIONS HAVE BEEN TOO CLOUDY FOR ANY OBSERVATION OF GAS OR ASH COLUMNS. BASED ON THE MAGNITUDES OF THE TREMORS ANY EMISSIONS ARE ESTIMATED BY THE GEOPHYSICAL INSTITUTE TO BE BELOW FL200. . TRAJECTORY: ANY ASH FROM THE SUMMIT TO FL200 WOULD MOVE TOWARDS THE WEST AT 15 TO 20 KNOTS. . OUTLOOK: SEE SIGMETS. . THE NEXT MESSAGE WILL BE ISSUED BY 01/0400 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. . CLARK . NNNN