FVXX21 KWBC 092030 VOLCANIC ASH ADVISORY ISSUED: 2001JUL09/2030Z VAAC: WASHINGTON . VOLCANO: TUNGURAHUA 1502-08 LOCATION: 0128S 7826W AREA: ECUADOR . SUMMIT ELEVATION: 16480 FT (5023 M) . ADVISORY NUMBER: 2001/105. . INFORMATION SOURCE: GUAYAQUIL METEOROLOGICAL WATCH OFFICE. GEOPHYSICAL INSTITUTE. GOES-8 SATELLITE VISIBLE..INFRARED AND MULTISPECTRAL IMAGERY. 6 HOUR WIND FORECAST FROM THE 09/0600Z AVIATION MODEL. . ERUPTION DETAILS: NEW MODERATE EXPLOSIVE ERUPTION REPORTED AT 09/0924Z. . DETAILS OF ASH CLOUD: THE GEOPHYSICAL INSTITUTE REPORTED A MODERATE EXPLOSION AT 0924Z. BASED ON THIS MORNINGS SOUNDING IT IS BELIEVED THAT THE HEIGHT OF ASH IS CLOSE TO SUMMIT LEVEL OR FL200. NO ASH IS DETECTED IN THE LATEST SATELLITE IMAGERY THROUGH 1945Z DUE TO LOW AND MIDDLE LEVEL CLOUDS OVER THE VOLCANO. . TRAJECTORY: ASH AT FL200 WOULD MOVE TOWARDS THE NORTHWEST AT 10-15 KNOTS. . OUTLOOK: SEE SIGMETS. . THE NEXT MESSAGE WILL BE ISSUED BY 10/0230Z. . 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