FVXX21 KWBC 240125 VOLCANIC ASH ADVISORY ISSUED 0125 UTC 24 JUL 2000 BY THE WASHINGTON VAAC . TUNGURAHUA 00-863 ECUADOR 0128S 7826W . BACKGROUND: TUNGURAHUA ECUADOR (1502-08) SUMMIT HEIGHT 16480 FT (5023 M) . SOURCES OF INFORMATION: GOES-8 INFRARED AND MULTISPECTRAL IMAGERY. GEOPHYSICAL INSTITUTE. GUAYAQUIL MWO. UPPER AIR FORECAST FROM THE AVIATION MODEL. . ERUPTION DETAILS: OCCASIONAL EMISSIONS OF ASH AND STEAM. . DETAILS OF ASH: THE GEOPHYSICAL INSTITUTE REPORTED ASH OVER THE VOLCANO THIS EVENING AT 23/2346 UTC. HOWEVER NONE OF THIS ASH HAS BEEN DETECTED IN SATELLITE IMAGERY THROUGH 24/0045 UTC. THE ACTIVITY THIS EVENING HAS BEEN REPORTED TO BE NEAR SUMMIT IN NATURE. . TRAJECTORY: ANY ASH AT NEAR SUMMIT WOULD MOVE TOWARDS THE WEST AND SOUTHWEST AT 15 TO 20 KTS. . OUTLOOK: SEE SIGMETS. . THE NEXT STATEMENT WILL BE ISSUED BY 24/0730 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. . ORRISON . NNNN