FVXX21 KWBC 180730
VOLCANIC ASH ADVISORY STATEMENT
ISSUED 0730 UTC 18 FEB 2000 BY THE WASHINGTON VAAC 
.
TUNGURAHUA 00-206         ECUADOR 0128S 7826W 
.
BACKGROUND:    TUNGURAHUA ECUADOR (1502-08)
               SUMMIT HEIGHT 16480 FT (5023 M)
.
SOURCES OF INFORMATION: THE GEOPHYSICAL INSTITUTE IN QUITO. 18/0000
UTC AVIATION MODEL WINDS. GOES-8 INFRARED AND MULTISPECTRAL IMAGERY.
.
ERUPTION DETAILS: SMALL TO MODERATE EXPLOSIONS. LAST EXPLOSION
REPORTED AT 2125 UTC.
.
DETAILS OF ASH: GOES-8 IMAGERY THROUGH 0645 UTC SHOWS DENSE
MULTILAYERED CLOUDS OVER THE VOLCANO MAKING THE DETECTION OF ASH
VIRTUALLY IMPOSSIBLE. THE GEOPHYSICAL INSTITUTE IN QUITO REPORTS
THAT THERE WERE TWO EXPLOSIONS OF TUNGURAHUA TODAY...AT 1941 AND
2125 UTC.               
.
TRAJECTORY: UPPER AIR PATTERNS SUGGEST ANY ASH FROM SUMMIT LEVEL TO
FL190 WOULD MOVE SOUTHWEST AT 5 TO 10 KNOTS. ANY ASH BETWEEN FL190
AND FL300 WOULD MOVE WEST AT 10 KNOTS. ANY ASH ABOVE FL300 WOULD
MOVE NORTHWEST AT 20 TO 25 KNOTS.
.
OUTLOOK:  SEE SIGMETS AND VAFTAD.
.
THE NEXT STATEMENT WILL BE ISSUED BY 18/1400 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.
.
BROWN
.
NNNN