FVXX21 KWBC 130530
VOLCANIC ASH ADVISORY STATEMENT
ISSUED 0530 UTC 13 JAN 2000 BY THE WASHINGTON VAAC 
.
TUNGURAHUA 00-049        ECUADOR 0128S 7826W 
.
BACKGROUND:    TUNGURAHUA ECUADOR (1502-08)
               SUMMIT HEIGHT 16480 FT (5023 M)
.
SOURCES OF INFORMATION: GOES-8 INFRARED AND MULTISPECTRAL IMAGERY... 
REPORTS FROM THE GEOPHYSICAL INSTITUTE...1800 UTC AVIATION MODEL
SOUNDING DATA...
.
ERUPTION DETAILS: OCCASIONAL EMISSIONS OF ASH AND STEAM...POSSIBLY
SOME STRONGER EXPLOSIONS...
.
DETAILS OF ASH: SATELLITE IMAGERY AT 13/0245 UTC INDICATES THAT ASH
AND STEAM IS BEING EMITTED FROM THE SUMMIT OF TUNGURAHUA AND IS
BECOMING EMBEDDED WITHIN A MULTILAYERD CLOUD DECK. THE ASH PLUME IS
MOST EVIDENT IN MULTISPECTRAL IMAGERY BUT IS NOTED TO BE NARROW WITH
A MOVEMENT TO THE SOUTH-SOUTHWEST. IT IS IMPOSSIBLE TO ACCURATELY
OUTLINE THE ASH DUE TO THE INTERACTION WITH OTHER CLOUDINESS BUT THE
THE ASH IS EXTENDING AT LEAST 20 KM (11 NMI) AWAY FROM THE SUMMIT
AND IS ABOUT 5 KM (2NMI) WIDE. THE SIGNIFICANT ASH NOTED ABOUT 12
HOURS AGO IS NO LONGER DETECTABLE AT THIS TIME. THIS NEW ASH IS
ESTIMATED TO BE AT ABOUT FL250. 
.  
TRAJECTORY: SOUTH-SOUTHWEST AT 10 TO 20 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.
.
THE NEXT STATEMENT WILL BE ISSUED AROUND 13/1130 UTC.
.
PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS.
.
ORRISON
.
NNNN