FVXX21 KWBC 160700
VOLCANIC ASH ADVISORY STATEMENT 
ISSUED 0700 UTC 16 MAY 2000 BY THE WASHINGTON VAAC 
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TUNGURAHUA 00-574         ECUADOR 0128S 7826W 
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BACKGROUND:    TUNGURAHUA ECUADOR (1502-08)
               SUMMIT HEIGHT 16480 FT (5023 M)
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SOURCES OF INFORMATION: GOES-8 INFRARED AND MULTISPECTRAL
IMAGERY. 6 HOUR WIND FORECAST FROM THE 16/0000 UTC AVIATION
MODEL. 
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ERUPTION DETAILS: NEARLY CONTINUOUS GAS AND OCCASIONAL ASH
EMISSIONS.   
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DETAILS OF ASH: SATELLITE IMAGERY THROUGH 16/0545 UTC SHOWS A
WELL DEFINED PLUME EXTENDING TO THE WEST AWAY FROM THE SUMMIT. 
THE PLUME IS 71KM (38 NMI) IN LENGTH 12KM (6 NMI) WIDE AND
EXTENDS TO THE POINT 0117S 7902W.  BASED ON FORECAST WIND DATA
FROM THE AVIATION MODEL THE HEIGHT OF THE ASH IS ESTIMATED TO
BE AT FL320. 
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TRAJECTORY: ASH AT FL320 WOULD MOVE TOWARDS THE WEST AT
10 KNOTS.
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OUTLOOK: SEE SIGMETS AND VAFTAD.
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THE NEXT STATEMENT WILL BE ISSUED BY 16/1300 UTC.
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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/)
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PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS.
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WALTER
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NNNN
"Attached Graphic Map Depicting Ash" 

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