FVXX21 KWBC 020120
.
VOLCANIC ASH ADVISORY STATEMENT 
ISSUED 0120 UTC 02 NOVEMBER 1999 BY THE WASHINGTON VAAC 
.
TUNGURAHUA 99-062      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...UPPER AIR SOUNDING DATA...GUAYAQUIL METEOROLOGICAL WATCH
OFFICE...GEOPHYSICAL INSTITUTE.
.
ERUPTION DETAILS...OCCASIONAL WEAK TO MODERATE ERUPTIONS AND A
STEADY RELEASE OF ASH AS CURRENTLY SEEN IN SATELLITE IMAGERY.
.
DETAILS OF ASH: INFRARED AND MULTISPECTRAL SATELLITE IMAGERY THROUGH
0015 UTC INDICATES THAT TUNGURAHUA IS RELEASING A STEADY AND RATHER
SIGNIFICANT AMOUNT OF ASH INTO THE ATMOSPHERE. THERE HAVE SEVERAL
EXPLOSIONS REPORTED AT TUNGURAHUA THROUGHOUT THE DAY ACCORDING TO
THE LATEST REPORT FROM THE GEOPHYSICAL INSTITUTE BUT THERE IS NOW
MUCH MORE ASH LEAVING THE SUMMIT.
.
AT 0015 UTC THERE ARE WELL DEFINED ASH PLUMES MOVING IN TWO
DIRECTIONS AWAY FROM THE SUMMIT. ONE PLUME OF ASH IS MOVING
SOUTHEAST AT FL390 WHILE A NEW ONE IS NOW SEEN MOVING TO THE WEST
AND SLIGHTLY NORTHWEST AT ABOUT FL260. THE NEWEST PLUME IS CONFIRMED
BY THE GUAYAQUIL METOROLOGICAL WATCH OFFICE. THE ASH PLUME AT FL390
MOVING SOUTHEAST AWAY FROM THE SUMMIT IS 23 KM (12NMI) WIDE AND
EXTENDS TO A POINT AT 2.32S 77.90W. THIS IS A DISTANCE OF 105 KM (57
NMI). THE ASH PLUME AT FL260 MOVING WEST-NORTHWEST AWAY FROM THE
SUMMIT IS 20 KM (11 NMI) WIDE AND EXTENDS TO A POINT AT 1.36S 79.00W
WHICH IS A DISTANCE OF 61 KM (33 NMI).
. 
TRAJECTORY: ASH AT FL390 IS MOVING SOUTHEAST AT 20 TO 30 KNOTS. THE
ASH AT FL260 IS MOVING WEST-NORTHWEST AT 10 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 02/0700 UTC.
.
PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS.
.
ORRISON
.
NNNN