FVXX20 KWBC 151345 . VOLCANIC ASH ADVISORY STATEMENT-SPECIAL STATEMENT ISSUED 1345 UTC 15 JULY 1999 BY THE WASHINGTON VAAC . FUEGO 99-017 GUATEMALA 14.47N 90.88W . BACKGROUND: FUEGO GUATEMALA (1402-09) SUMMIT HEIGHT 12345 FT (3763 M) A SPECIAL STATEMENT ON THE STATUS OF FUEGO IN GUATEMALA IS BEING ISSUED TO ACCOUNT FOR REPORTS OF INCREASED ACTIVITY NEAR THE VOLCANO. THE STATUS OF THE VOLCANO HAS BEEN UPGRADED TO CODE ORANGE BY THE GUATEMALA VOLCANO INSTITUTE TO ACCOUNT FOR REPORTS OF INCREASED ACTIVITY AND TO ADVISE AIR TRAFFIC IN THE VICINITY OF GUATEMALA CITY OF THE INCREASED HAZARD POTENTIAL. HOWEVER, THE INSTITUTE HAS INFORMED THE WASHINGTON VAAC THAT THE VOLCANO WILL LIKELY BE DOWNGRADED TO CODE YELLOW LATER THIS MORNING. . 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) . THIS WILL BE THE ONLY STATEMENT ON THIS EVENT UNLESS CONDITIONS CHANGE. . NNNN