FVXX21 KWBC 272330 VOLCANIC ASH ADVISORY STATEMENT ISSUED 2330 UTC 27 DEC 1999 BY THE WASHINGTON VAAC . TUNGURAHUA 99-302 ECUADOR 1.47S 78.44W . BACKGROUND: TUNGURAHUA ECUADOR (1502-08) SUMMIT HEIGHT 16480 FT (5023 M) . SOURCES OF INFORMATION: GOES-8 INFRARED AND MULTISPECTRAL IMAGERY. REPORT AND WIND DATA PROVIDED BY THE OBSERVATORY IN QUITO. . ERUPTION DETAILS: EMISSIONS OF ASH AND STEAM . DETAILS OF ASH: SATELLITE IMAGERY THRU 27/2245 UTC DOES NOT SHOW ANY ASH IN THE VICINITY OF THE VOLCANO. GUAYAQUIL REPORTS VOLCANIC ASH OVER THE STATION OF CHIMBORAZO (SERB) AT 27/2000 UTC. . TRAJECTORY: IF THERE IS ANY ASH BELOW FL260 IT WOULD MOVE TOWARDS THE NORTHWEST AT 10 TO 20 KTS. . 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.. 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 28/0530 UTC. . PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS. . NNNN