FVXX21 KWBC 170130 VOLCANIC ASH ADVISORY ISSUED: 2001SEP17/0130 VAAC: WASHINGTON . VOLCANO: TUNGURAHUA 1502-08 LOCATION: 0128S 7826W AREA: ECUADOR . SUMMIT ELEVATION: 16480 FT (5023 M) . ADVISORY NUMBER: 2001/249 . INFORMATION SOURCE: GOES-8 INFRARED AND MULTISPECTRAL IMAGERY. WIND FORECAST FROM THE AVIATION MODEL. GUAYAQUIL METEOROLOGICAL WATCH OFFICE. . ERUPTION DETAILS: NEARLY CONTINUOUS NEAR SUMMIT LIGHT ASH FLOW. . DETAILS OF ASH CLOUD: GOES IMAGERY BETWEEN 16/2145Z AND 16/2315Z HAD SHOWN A HOT SPOT AT THE VOLCANO BUT NO DETECTABLE ASH PLUME. AT 17/0045Z CLOUDS ARE OBSCURING THE AREA AND NO HOTSPOT OR PLUME CAN BE DETECTED IN IMAGERY. THE GUAYAQUIL MWO REPORTS A SURFACE OBSERVATION AT 16/2250 OF ASH TO FL260 NEAR THE SUMMIT OF THE VOLCANO. TRAJECTORY: ANY ASH FROM SUMMIT LEVEL TO FL300 IS FORECAST TO MOVE TOWARD THE WEST AROUND 20 KNOTS. . OUTLOOK: SEE SIGMETS AND VAFTAD. . THE NEXT ADVISORY WILL BE ISSUED BY 17/0730Z. . 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. . . NNNN