FVXX21 KWBC 211345
.
VOLCANIC ASH ADVISORY STATEMENT 
ISSUED 1345 UTC 21 OCTOBER 1999 BY THE WASHINGTON VAAC 
.
TUNGURAHUA 99-013       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 THROUGH 1315 UTC... GUAYAQUIL METEOROLOGICAL WATCH
OFFICE...U.S. NATIONAL WEATHER SERVICE NUMERICAL WEATHER PREDICTION
MODELS 
.
ERUPTION DETAILS: PERIODIC MINIMAL TO MODERATE ERUPTIONS TO FL180
.
DETAILS OF ASH: A FAINT NARROW PLUME CAN BE SEEN IN EARLY MORNING
VISIBLE IMAGERY MOVING TOWARD THE WEST-NORTHWEST. THIS PLUME SEEMS
TO BE MOSTLY STEAM AND EXTENDS APPROXIMATELY TO THE POINT 1.2S 79.0E
OR ABOUT  40 NMI WEST-NORTHWEST OF THE VOLCANO.  THE GUAYAQUIL MWO
REPORTS THIS PLUME TO BE AT FL180.
. 
TRAJECTORY: NUMERICAL MODEL FORECASTS SUGGEST THAT ANY ASH AT FL180
WOULD MOVE TOWARD THE WEST-NORTHWEST AT 10-15KT.
.
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 MESSAGE WILL BE ISSUED BY 21/2000 UTC.
.
SCHWARTZ/SAB/NOAA/NESDIS
.
PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS.
.
NNNN
"Attached Graphic Map Depicting Ash" 

""