FVXX20 KWBC 141515 . VOLCANIC ASH ADVISORY STATEMENT-SPECIAL STATEMENT ISSUED 1515 UTC 14 OCTOBER 1999 BY THE WASHINGTON VAAC . GUAGUA PICHINCHA 99-047 ECUADOR 0.17S 78.60W . BACKGROUND: GUAGUA PICHINCHA (1502-02) SUMMIT HEIGHT 15,695FT (4784 M) . THE GEOPHYSICAL INSTITUTE CONTINUES TO MONITOR THE INCREASED ACTIVITY OF THE GUAGUA PICHINCHA VOLCANO LOCATED NEAR THE CAPITOL CITY OF QUITO ECUADOR. THE VOLCANO IS RESTLESS WITH A POTENTIAL EXPLOSIVE ERUPTION POSSIBLE WITH LITTLE OR NO WARNING. . WE WILL CONTINUE TO MONITOR THE AREA AND IF THERE IS AN ASH CLOUD OBSERVED OR REPORTED AT ANY ALTITUDE A VOLCANIC ASH ADVISORY STATEMENT WARNING WILL BE ISSUED AS SOON AS POSSIBLE. . THE WATCH VAAS IS ISSUED ONLY FOR SEISMICALLY MONITORED VOLCANOES AND BASED ON INFORMATION RECEIVED FROM THE GEOLOGICAL COMMUNITY. A WATCH VAAS WILL BE ISSUED DAILY WHEN INFORMATION IS RECEIVED TO INDICATE THAT A VOLCANO IS RESTLESS AND HAS THE POTENTIAL FOR AN EXPLOSIVE ERUPTION WITH LITTLE OR NO WARNING. NON-EXPLOSIVE LOW LEVEL AND NEAR SUMMIT ACTIVITY MAY BE OCCURRING AT PRESENT. SEE NOAA-ARL HOMEPAGE FOR HYPOTHETICAL ERUPTIONS-VAFTAD AT: HTTP://WWW.ARL.NOAA.GOV/VAFTAD.HTML (ALL LOWER CASE) . THE NEXT WATCH STATEMENT WILL BE ISSUED AROUND 15/1500 UTC. . WALTER . NNNN