FVXX21 KWBC 151525 VOLCANIC ASH ADVISORY ISSUED: 2001MAY15/1525Z VAAC: WASHINGTON . VOLCANO: TUNGURAHUA 1502-08 LOCATION: 0128S 7826W AREA: ECUADOR . SUMMIT ELEVATION: 16480 FT (5023 M) . ADVISORY NUMBER: 2001/59 INFORMATION SOURCE: GUAYAQUIL SIGMET...GEOPHYSICAL INSTITUTE GOES 8 VISIBLE AND MULTISPECTRAL IMAGERY. AVIATION MODEL WIND FORECAST. . ERUPTION DETAILS: ERUPTION REPORTED AT AROUND 1330Z AND AGAIN AROUND 1400Z . DETAILS OF ASH CLOUD: DUE TO BROKEN CLOUD COVER NO ASH CAN BE DETECTED IN IMAGERY THROUGH 15/1445Z. PILOT REPORTS INDICATED ASH OBSERVED FROM THE SUMMIT TO AROUND FL240. . TRAJECTORY: ANY ASH BETWEEN THE SUMMIT AND FL250 IS FORECAST TO MOVE SOUTH TO SOUTHWEST AROUND 10 TO 20 KNOTS. . OUTLOOK: SEE SIGMETS AND VAFTAD. . THE NEXT ADVISORY WILL BE ISSUED BY 15/2130Z UNLESS FURTHER INFORMATION IS RECEIVED. . 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. . . NNNN