FVXX21 KWBC 040800 VOLCANIC ASH ADVISORY STATEMENT ISSUED 0800 UTC 04 JAN 2000 BY THE WASHINGTON VAAC . TUNGURAHUA 00-015 ECUADOR 0128S 7826W . BACKGROUND: TUNGURAHUA ECUADOR (1502-08) SUMMIT HEIGHT 16480 FT (5023 M) . SOURCES OF INFORMATION: GOES-8 INFRARED AND MULTISPECTRAL IMAGERY. WIND FORECAST FROM THE 04/0000 UTC AVIATION MODEL. 04/0000 UTC UPPER WIND MEASUREMENTS FROM THE GEOPHYSICAL INSTITUTE. SURFACE REPORTS FROM STATION SEAM. . ERUPTION DETAILS: CONTINUOUS ASH AND STEAM EMISSIONS. . DETAILS OF ASH: SATELLITE IMAGERY THROUGH 04/0715 UTC SHOWS HIGH LEVEL CLOUDS OVER THE SUMMIT AND THE IMMEDIATE VICINITY. NO ASH COULD BE DETECTED IN THE INFRARED AND MULTISPECTRAL IMAGERY. . TRAJECTORY: UPPER AIR PATTERNS SUGGEST ASH BETWEEN FL300 AND FL350 WILL MOVE TO THE SOUTHWEST AT 10 TO 15 KNOTS. . REAL TIME SATELLITE IMAGERY ALONG WITH THIS AND OTHER VOLCANIC ASH ADVISORY STATEMENTS 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/) . OUTLOOK: SEE SIGMETS AND VAFTAD. . EFFECTIVE JANUARY 3 2000 AT 0000 UTC... ALL REFERENCES TO LATITUDE AND LONGITUDE IN VOLCANIC ASH ADVISORY STATEMENTS WILL BE IN DEGREES AND MINUTES OF A DEGREE. EXAMPLE: 16.70N 62.20W WILL BE 1642N6212W . THE NEXT STATEMENT WILL BE ISSUED BY 04/1400 UTC. . PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS. . BROWN/NOAA/NESDIS/SAB . NNNN