FVXX21 KWBC 111345 VOLCANIC ASH ADVISORY ISSUED: 2001JAN11/1345Z VAAC: WASHINGTON . VOLCANO: TUNGURAHUA 1502-08 LOCATION: 0128S 7826W AREA: ECUADOR . SUMMIT ELEVATION: 16480 FT (5023 M) . ADVISORY NUMBER: 2001/25 INFORMATION SOURCE: VISIBLE...INFRARED AND MULTISPECTRAL SATELLITE IMAGERY. GUAYAQUIL METEOROLOGICAL WATCH OFFICE SIGMET. WIND FORECAST FROM AVIATION MODEL. . ERUPTION DETAILS: OCCASIONAL REPORTS OF ASH BY THE GEOPHYSICAL INSTITUTE. . DETAILS OF ASH CLOUD: LOW AND MIDDLE LEVEL CLOUDINESS OVER THE VOLCANO IS MAKING THE DETECTION OF ASH DIFFICULT IN SATELLITE IMAGERY. THE GUAYAQUIL MWO REPORTED THAT AN AIRCRAFT AT 11/1233Z OBSERVED ASH OVER THE VOLCANO TO FL230. . TRAJECTORY: ANY ASH TO FL230 WOULD MOVE TO THE WEST AT 10 TO 15 KTS. . OUTLOOK: SEE SIGMETS. . THE NEXT MESSAGE WILL BE ISSUE BY 11/2000Z. . REAL TIME SATELLITE IMAGERY AND 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. . BROWN . NNNN