FVXX21 KWBC 190715 VOLCANIC ASH ADVISORY STATEMENT ISSUED 0715 UTC 19 APR 2000 BY THE WASHINGTON VAAC . TUNGURAHUA 00-460 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 AVIATION MODEL. REPORT FROM THE GEOPHYSICAL INSTITUTE. . ERUPTION DETAILS: OCCASIONAL ASH EMISSIONS. . DETAILS OF ASH: SINCE 18/1826 UTC SATELLITE DATA HAS BEEN LIMITED TO ONE IMAGE EVERY THREE HOURS IN ORDER TO SUPPORT US NATIONAL WEATHER SERVICE OBSERVATIONS. NORMAL IMAGING WILL RESUME AFTER 19/1126 UTC. . NO ASH COULD BE DISCERNED IN THE MOST RECENT SATELLITE IMAGE AT 19/0245 UTC. THE LAST INDICATION OF ASH WAS RECEIVED AT 18/2000 UTC WHEN THE GEOPHYSICAL INSTITUTE REPORTED ASH TO FL160. TRAJECTORY: ANY ASH THAT MAY EXIST TO FL160 WOULD MOVE TOWARDS THE WEST SOUTHWEST AT 10 TO 20 KNOTS. . THE NEXT STATEMENT WILL BE ISSUED BY 19/1300 UTC. . 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/) . PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS. . TURK . NNNN