FVXX20 KWBC 301620 
.
VOLCANIC ASH ADVISORY STATEMENT
ISSUED 1620 UTC 30 NOV 1999 BY THE WASHINGTON VAAC
.
GUAGUA PICHINCHA 99-131     ECUADOR 0.17S 78.60W 
.
BACKGROUND:    GUAGUA PICHINCHA ECUADOR (1502-02)
               SUMMIT HEIGHT    15695 FT (4784 M)  
.
SOURCES OF INFORMATION: THE GEOFISICO INSTITUTO IN ECUADOR...GOES-8
INFRARED AND MULTISPECTRAL IMAGERY...UPPER LEVEL WINDS FORECAST FROM
AVIATION MODEL...SURFACE REPORTS FROM QUITO
.
ERUPTION DETAILS: ERUPTION AT 29/1640 UTC 
.
DETAILS OF ASH CLOUD: NO ASH CAN BE SEEN IN SATELLITE IMAGERY SINCE
YESTERDAY EVENING ALTHOUGH THERE IS EXTENSIVE METEOROLOGICAL CLOUDS
IN THE AREA. THE GEOFISICO INSTITUTO IN QUITO ECUADOR REPROTS NO NEW
ASH EMISSIONS SINCE YESTERDAY'S ERUPTION.
.
TRAJECTORY: UPPER AIR PATTERNS SUGGEST THAT ANY REMAINING ASH FL150
TO FL300 WILL MOVE TOWARD THE SOUTHWEST AT LESS THAN 20 KNOTS. ASH
FROM FL320 TO FL450 WILL MOVE SOUTHWARD AT 10 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 SCHEDULED STATEMENT WILL BE A WATCH VAAS ISSUED AT 01/1700
UTC.
.
PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS.
.
NNNN