FVXX21 KWBC 121415 VOLCANIC ASH ADVISORY ISSUED: 2001SEP12/1415Z VAAC: WASHINGTON . VOLCANO: TUNGURAHUA 1502-08 LOCATION: 0128S 7826W AREA: ECUADOR . SUMMIT ELEVATION: 16480 FT (5023 M) . ADVISORY NUMBER: 2001/231 . INFORMATION SOURCE: GOES-8 VISIBLE/INFRARED/MULTISPECTRAL IMAGERY. AIRCRAFT REPORT. 12/1200Z AVIATION MODEL UPPER AIR WINDS. . ERUPTION DETAILS: ASH REPORTED OVER VOLCANO AT 12/1342Z. . DETAILS OF ASH CLOUD: GOES-8 IMAGERY THROUGH 1345Z DOES NOT SHOW THE PRESENCE OF ASH OVER THE VOLCANO DUE TO MID AND HIGH LEVEL CLOUDS OBSCURING THE VOLCANO. THE AIRCRAFT REPORTS ASH OVER THE VOLCANO TO FL210 MOVING WEST. . TRAJECTORY: UPPER AIR PATTERNS SUGGEST ANY ASH FROM SUMMIT LEVEL TO FL200 WOULD MOVE NORTHWEST AT 5 TO 10 KNOTS. ASH ABOVE FL200 WOULD MOVE WEST AT 5 TO 10 KNOTS. . OUTLOOK: SEE SIGMETS. . THE NEXT ADVISORY WILL BE ISSUED BY 12/2030Z. . INTERNET URLS... MESSAGE LISTSERV WWW.SSD.NOAA.GOV/VAAC/SUBSCRIBE.HTML MESSAGES GRAPHICS AND IMAGERY WWW.SSD.NOAA.GOV/VAAC/WASHINGTON.HTML (ALL LOWERCASE EXCEPT /VAAC/) . PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS. . HUGHES/WALTER . NNNN