FVXX20 KWBC 172245 VOLCANIC ASH ADVISORY ISSUED 2245 UTC 17 JUL 2000 BY THE WASHINGTON VAAC . GUAGUA PICHINCHA 00-171 ECUADOR 0011S 7836W . BACKGROUND: GUAGUA PICHINCHA ECUADOR (1502-02) SUMMIT HEIGHT 15695 FT (4784 M) . SOURCES OF INFORMATION: GOES-8 VISIBLE AND INFRARED IMAGERY. WIND FORECAST FROM THE AVIATION MODEL. GEOPHYSICAL INSTITUTE REPORT. . ERUPTION DETAILS: ASH EMISSION AT 17/2130 UTC. . DETAILS OF ASH CLOUD: THE GEOPHYSICAL INSTITUTE REPORTED ASH OVER THE VOLCANO AT 17/2130 UTC. SATELLITE IMAGERY THROUGH 17/2215 UTC SHOWS CLOUDS OVER THE AREA OF THE VOLCANO MAKING ANY ASH DETECTION DIFFICULT. ANY ASH THAT MAY BE PRESENT IS ESTIMATED NEAR SUMMIT LEVEL. TRAJECTORY: ANY ASH FROM NEAR SUMMIT LEVEL WILL MOVE TOWARDS THE NORTHWEST AT 5 TO 10 KNOTS. . OUTLOOK: SEE SIGMETS . THE NEXT MESSAGE WILL BE ISSUED BY 18/0500 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