FVXX20 KWBC 270655 VOLCANIC ASH ADVISORY ISSUED: 2001JUL27/0655Z VAAC: WASHINGTON . VOLCANO: TUNGURAHUA 1502-08 LOCATION: 0128S 7826W AREA: ECUADOR . SUMMIT ELEVATION: 16480 FT (5023 M) . ADVISORY NUMBER: 2001/124 . INFORMATION SOURCE: GOES-8 INFRARED AND MULTISPECTRAL SATELLITE IMAGERY. GUAYAQUIL SIGMET. GEOPHYSICAL INSTITUTE. UPPER AIR DATA FROM AVIATION MODEL. . ERUPTION DETAILS: PROBABLE ASH OVER SUMMIT AT 27/0444Z. . DETAILS OF ASH CLOUD: THE GEOPHYSICAL INSTITUTE REPORTED THAT ASH WAS LIKELY OVER THE SUMMIT AT 0444Z. SATELLITE IMAGERY THROUGH 0615Z SHOWED EXTENSIVE CLOUD COVER OVER THE AREA PRECLUDING THE DETECTION OF ASH. NO INFORMATION WAS GIVEN ON THE POSSIBLE HEIGHT OF ANY ASH CLOUD BUT IT IS PRESUMED TO BE CONFINED TO BELOW FL200. . TRAJECTORY: ANY ASH TO FL200 WOULD MOVE TOWARDS THE WEST AT 15 TO 20 KNOTS. . OUTLOOK: SEE SIGMETS. . THIS WILL BE THE ONLY ADVISORY ISSUED FOR THIS EVENT UNLESS ADDITIONAL 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. . TURK . NNNN