FVXX21 KWBC 041930
.
VOLCANIC ASH ADVISORY STATEMENT
ISSUED 1930 UTC 04 DEC 1999 BY THE WASHINGTON VAAC 
.
TUNGURAHUA 99-204         ECUADOR 1.47S 78.44W 
.
BACKGROUND:    TUNGURAHUA ECUADOR (1502-08)
               SUMMIT HEIGHT 16480 FT (5023 M)
.
SOURCES OF INFORMATION: GOES-8 VISIBLE..MULTISPECTRAL AND INFRARED
IMAGERY.  AVIATION MODEL WIND FORECAST.  REPORT FROM THE GEOPHYSICAL
INSTITUTE.
.
ERUPTION DETAILS: LAST VISIBLE ASH PLUME 01 DECEMBER 1245 UTC.
.
DETAILS OF ASH: THE LATEST SATELLITE IMAGERY THROUGH 04/1915 UTC
SHOWS SCATTERED CLOUDS OVER THE AREA OF THE VOLCANO BUT DESPITE THIS
CLEARING ASH IS STILL NOT DETECTED.
. 
TRAJECTORY: N/A
.
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 05/0130 UTC.
.
PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS.
.
WALTER/SAB/NOAA/NESDIS
.
NNNN