FVXX21 KWBC 121600
.
VOLCANIC ASH ADVISORY
ISSUED 1600 UTC 12 NOV 1999 BY THE WASHINGTON VAAC 
.
TUNGURAHUA 99-109         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...U.S. NUMERICAL MODEL WINDS
.
ERUPTION DETAILS: NEW EXPLOSIVE ERUPTION OBSERVED ON SATELLITE
IMAGERY AT AROUND 12/1500 UTC. ASH FROM THE EARLIER ERUPTION AT 0415
UTC IS NO LONGER VISIBLE
.
DETAILS OF ASH: GOES-8 VISIBLE MULTISPECTRAL AND INFRARED IMAGERY
INDICATES A NEW ERUPTION OCCURRING AT ABOUT 1500 UTC. HEIGHT IS
ESTIMATED AT FL320.  AT 1515 UTC THE ASH EXTENDED APPROXIMATELY 10
NMI TO THE WEST-NORTHWEST OF THE SUMMIT.
. 
TRAJECTORY: UPPER AIR DATA INDICATES ASH AT FL320 WOULD MOVE TOWARDS
THE WEST TO WEST NORTHWEST 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 AND VAFTAD.
.
THE NEXT STATEMENT WILL BE ISSUED BY 12/2200.
.
PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS.
.

.
NNNN
"Attached Graphic Map Depicting Ash" 

""