FVXX20 KWBC 242000 VOLCANIC ASH ADVISORY ISSUED 2000 UTC 24 JUL 2000 BY THE WASHINGTON VAAC . GUAGUA PICHINCHA 00-184 ECUADOR 0011S 7836W . BACKGROUND: GUAGUA PICHINCHA ECUADOR (1502-02) SUMMIT HEIGHT 15695 FT (4784 M) . SOURCES OF INFORMATION: GOES-8 VISIBLE...INFRARED...AND MULTISPECTRAL IMAGERY. 24/1800 UTC FORECAST UPPER WINDS FROM THE 24/1200 UTC AVIATION MODEL. . ERUPTION DETAILS: OVERNIGHT ACTIVITY CONFINED TO THE CALDERA. . DETAILS OF ASH CLOUD: GOES-8 IMAGERY THROUGH 1915 UTC SHOWS NO SIGN OF ASH AT OR NEAR THE SUMMIT. SHORTWAVE INFRARED AND REFLECTIVITY IMAGERY ALSO INDICATES THE LACK OF A DISCERNABLE HOT SPOT. . TRAJECTORY: UPPER AIR PATTERNS SUGGEST ANY ASH AT OR NEAR SUMMIT LEVEL TO MOVE WEST AT 5 TO 10 KNOTS. . OUTLOOK: SEE SIGMETS. . THIS WILL BE THE LAST ADVISORY ISSUED FOR THIS EVENT. . 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. . HUGHES . NNNN