FVXX21 KWBC 232015
.
VOLCANIC ASH ADVISORY STATEMENT
ISSUED 2015 UTC 23 DEC 1999 BY THE WASHINGTON VAAC 
.
TUNGURAHUA 99-285         ECUADOR 1.47S 78.44W 
.
BACKGROUND:    TUNGURAHUA ECUADOR (1502-08)
               SUMMIT HEIGHT 16480 FT (5023 M)
.
SOURCES OF INFORMATION: GOES-8 VISIBLE AND INFRARED AND
MULTISPECTRAL IMAGERY...GEOPHYSICAL INSTITUTE REPORT...1200 UTC
AVIATION MODEL WIND FORECAST. 
.
ERUPTION DETAILS: NEW ASH PLUME AT 23/1315 UTC.
.
DETAILS OF ASH: THE LATEST SATELLITE IMAGERY THRU 1945 UTC SHOWS
THAT THE PLUME OBSERVED EARLIER MOVING TOWARDS THE SOUTHWEST FROM
THE SUMMIT IS OBSCURED BY CLOUDS AT THIS TIME. AS A RESULT WE ARE
UNABLE TO DETECT VOLCANIC ASH IN THE IMAGERY.
.
TRAJECTORY: ANY ASH BETWEEN FL160 AND FL230 WILL MOVE TO THE
SOUTHWEST AT 15 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 24/0215 UTC.
.
PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS.
.
KARST
.
NNNN