FVXX21 KWBC 040500
VOLCANIC ASH ADVISORY STATEMENT  
ISSUED 0500 UTC 04 FEB 2000 BY THE WASHINGTON VAAC 
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TUNGURAHUA 00-141         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 MULTISPECTRAL AND INFRARED IMAGERY.
18 HOUR WIND FORECAST FROM THE 03/1200 UTC AVIATION MODEL.
GEOPHYSICAL INSTITUTE IN QUITO.
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ERUPTION DETAILS: INTERMITTENT ERUPTIONS.
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DETAILS OF ASH: THE ASH PLUME DETECTED AT 03/1945 UTC IS NO LONGER
VISIBLE ON THE SATELLITE IMAGERY.  IN ADDITION CURRENT SATELLITE
IMAGERY THROUGH 04/0415 UTC SHOWS EXTENSIVE CLOUDINESS OVER AND NEAR
THE SUMMIT MAKING DETECTION OF ASH EXTREMELY DIFFICULT.
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TRAJECTORY: ANY ASH REMAINING AT FL230 WOULD CONTINUE TO MOVE TOWARD
THE WEST AT 15-20 KTS.
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OUTLOOK:  SEE SIGMETS AND VAFTAD.
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NEXT MESSAGE WILL BE ISSUED BY 04/1100 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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