FVXX21 KWBC 251200 VOLCANIC ASH ADVISORY ISSUED: 2001JUL25/1200Z VAAC: WASHINGTON . VOLCANO: TUNGURAHUA 1502-08 LOCATION: 0128S 7826W AREA: ECUADOR . SUMMIT ELEVATION: 16480 FT (5023 M) . ADVISORY NUMBER: 2001/120 . INFORMATION SOURCE: GOES-8 VISIBLE..MULTISPECTRAL AND INFRARED SATELLITE IMAGERY. SIGMET FROM THE GUAYAQUIL METEOROLOGICAL WATCH OFFICE. SIX HOUR WIND FORECAST FROM THE 25/0600Z AVIATION MODEL. . ERUPTION DETAILS: ASH OBSERVED AT 25/1104Z. . DETAILS OF ASH CLOUD: THE GEOPHYSICAL INSTITUTE REPORTED ASH OVER THE SUMMIT AT 25/1104Z TO FL260 MOVING WEST. CURRENT SATELLITE IMAGERY THROUGH 25/1115Z DOES NOT INDICATE ANY ASH HOWEVER A HOTSPOT IS SEEN IN THE MULTISPECTRAL IMAGERY AT 25/1115Z. . TRAJECTORY: ANY ASH BETWEEN THE SUMMIT AND FL260 WILL CONTINUE TO MOVE TOWARDS THE WEST AT 10 KNOTS. . OUTLOOK: SEE SIGMETS . THE NEXT ADVISORY WILL BE ISSUED BY 25/1800Z. . 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. . WALTER . NNNN