FVXX21 KWBC 090400
.
VOLCANIC ASH ADVISORY
ISSUED 0400 UTC 09 NOVEMBER 1999 BY THE WASHINGTON VAAC 
.
TUNGURAHUA 99-094    ECUADOR 1.47S 78.44W 
.
BACKGROUND:    TUNGURAHUA ECUADOR (1502-08)
               SUMMIT HEIGHT 16480 FT (5023 M)
.
SOURCES OF INFORMATION: GOES-8 INFRARED AND MULTISPECTRAL
IMAGERY...GUAYAQUIL METEOROLOGICAL WATCH OFFICE...12 UTC AVIATION
NUMERICAL WEATHER MODEL WIND DATA...REPORT OF THE INSTITUTO
GEOFISICO 
.
ERUPTION DETAILS: FREQUENT ERUPTIONS WITH A MORE INTENSE RELEASE OF
ASH AT ABOUT 09/0100 UTC.  
.
DETAILS OF ASH: SATELLITE IMAGERY THROUGH 09/0315 UTC SHOWS FAIRLY
FAINT ASH MOVING AWAY FROM THE SUMMIT TOWARD THE NORTHEAST AND EAST
AND SOUTHEAST. AT 0315 UTC THE ASH IS APPROXIMATELY BOUNDED BY 1.4S
78.5W TO 1.2S 77.6W TO 1.8S 78.1W TO 1.4S 78.5W. UPPER AIR PATTERNS
SUGGEST THAT THIS ASH IS BETWEEN FL140 AND FL320.  ASH MOVING TO THE
NORTHEAST IS HIGHER THAN THE ASH MOVING TOWARD THE SOUTHEAST
. 
TRAJECTORY: ASH BETWEEN FL220 AND FL320 IS MOVING TOWARD THE EAST
NORTHEAST AND TOWARD THE EAST AT ABOUT 25 KNOTS.  ASH BETWEEN FL140
AND FL210 IS MOVING TOWARD THE SOUTHEAST 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 09/1000 UTC.
.
PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS.
.
NNNN
"Attached Graphic Map Depicting Ash" 

"Graphic Map Depicting Ash"