FVXX21 KWBC 020000 
VOLCANIC ASH ADVISORY STATEMENT
ISSUED 0000 UTC 02 JAN 2000 BY THE WASHINGTON VAAC 
.
TUNGURAHUA 00-005         ECUADOR 1.47S 78.44W 
.
BACKGROUND:    TUNGURAHUA ECUADOR (1502-08)
               SUMMIT HEIGHT 16480 FT (5023 M)
.
SOURCES OF INFORMATION: GOES-8 VISIBLE INFRARED AND MULTISPECTRAL
IMAGERY. GUAYAQUIL SIGMET. 6 HOUR FORECAST WINDS FROM THE 01/1800
UTC AVIATION MODEL.
.
ERUPTION DETAILS: INTERMITTENT ASH AND STEAM EMISSIONS WITH AN
EXPLOSION OCCURRING AROUND 01/2230 UTC.
.
DETAILS OF ASH: THE LATEST SIGMET ISSUED BY THE GUAYAQUIL MWO
INDICATED A PILOT OBSERVED AN EXPLOSION OF TUNGURAHUA AT 2254 UTC.
GOES 8 VISIBLE INFRARED AND MULTISPECTRAL IMAGERY CONFIRMED THAT THE
SINGLE EXPLOSION OF ASH OCCURRED BETWEEN THE 2215 UTC AND THE 2245
UTC IMAGES.  THE ASH CLOUD FROM THE EXPLOSION HAD BECOME TOO DIFFUSE
TO DETECT IN INFRARED IMAGERY BY 2315 UTC BUT MULTISPECTRAL IMAGERY
AT THAT TIME INDICATED A PLUME EXTENDING 42 KM (23 NMI) TO THE
SOUTHWEST OF THE SUMMIT TO POINT 1.7S/78.8W.  THE PLUME WAS 11 KM (6
NMI) WIDE AND ESTIMATED TO BE AT FL250.
.
TRAJECTORY: TOWARDS THE SOUTHWEST AT 15 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.
.
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 02/0600 UTC.
.
PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS.
.
TURK/SAB/NOAA/NESDIS
.
NNNN
"Attached Graphic Map Depicting Ash" 

""