FVXX21 KWBC 070645 VOLCANIC ASH ADVISORY ISSUED: 2003FEB07/0700Z VAAC: WASHINGTON VOLCANO: POPOCATEPETL 1401-09 LOCATION: N1901W09837 AREA: MEXICO SUMMIT ELEVATION: 17930 FT (5465 M) ADVISORY NUMBER: 2003/016 INFORMATION SOURCE: GOES-8 IMAGERY. GFS MODEL WINDS FORECAST. CENAPRED VOLCANO CAMERA. ERUPTION DETAILS: EMISSIONS AT 06/2352Z AND 06/1758Z. OBS ASH DATE/TIME: NIL OBS ASH CLOUD: ASH IS NOT IDENTIFIABLE ON SATELLITE DATA FCST ASH CLOUD +6H: SEE SIGMETS REMARKS: THE ASH EMISSION THAT OCCURRED AT 6/2352Z HAS BECOME TOO DIFFUSE TO BE DETECTED ON IR AND MULTI-SPECTRAL IMAGERY. THE ASH WAS LAST DETECTED AT 0445Z NEAR THE MEXICAN GULF COAST AT 20.4N 96.9W. THE VOLCANO CAMERA NEAR THE SUMMIT HAS NOT SHOWN ANY INCANDESCENCE AND NO HOTSPOT HAS BEEN OBSERVED ON SATELLITE IMAGERY FOR THE PAST SIX HOURS. HOWEVER...ACTIVITY AT THE VOLCANO AS BEEN HIGH OVER THE PAST FEW DAYS ASSOCIATED WITH NEW DOME GROWTH IN THE CRATER. THIS MEANS ERUPTIONS OF ASH CAN OCCUR WITHOUT WARNING. PREVIOUS EMISSIONS HAVE MOVED TO THE NE DUE TO PREVAILING SW WINDS...GALLINA NEXT ADVISORY: NO FURTHER ADVISORIES. NNNN