FVXX20 KWBC 221645 VOLCANIC ASH ADVISORY STATEMENT - WATCH ISSUED 1645 UTC 22 APR 2000 BY THE WASHINGTON VAAC . GUAGUA PICHINCHA 00-143 ECUADOR 0011S 7836W . BACKGROUND: GUAGUA PICHINCHA ECUADOR (1502-02) SUMMIT HEIGHT 15695 FT (4784 M) . THE GEOPHYSICAL INSTITUTE IN ECUADOR CONTINUES TO MONITOR THE ACTIVITY OF THE GUAGUA PICHINCHA VOLCANO LOCATED NEAR THE CAPITAL CITY OF QUITO. THE VOLCANO IS RESTLESS WITH ROCKFALL SIGNATURES... DEGASSING AND DOME GROWTH THAT SIGNAL A POTENTIAL EXPLOSIVE ERUPTION IS 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. REAL TIME SATELLITE IMAGERY OF ECUADOR CAN BE ACCESSED VIA INTERNET AT: http://www.ssd.noaa.gov/VAAC/guag-img.html (ALL LOWER CASE EXCEPT /VAAC/) . 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 BY 23/1700 UTC UNLESS CONDITIONS CHANGE. . RUMINSKI . NNNN