FVXX21 KWBC 251315
VOLCANIC ASH ADVISORY
ISSUED 1315 UTC 25 JUL 2000 BY THE WASHINGTON VAAC 
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TUNGURAHUA 00-869         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 VISIBLE...INFRARED...AND
MULTISPECTRAL IMAGERY. 25/1200 UTC FORECAST UPPER WINDS FROM
THE 25/0600Z AVIATION MODEL. THE GEOPHYSICAL INSTITUTE IN
QUITO. 
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ERUPTION DETAILS: OCCASIONAL EMISSIONS OF ASH AND STEAM.
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DETAILS OF ASH: GOES-8 IMAGERY THROUGH 1245 UTC SHOWS A FAINT
DETACHED ASH CLOUD MOVING SOUTHWEST FROM THE VOLCANO AT APPROX
10 TO 15 KNOTS. THE ASH CLOUD IS APPROX 27 KM (15 NMI) LONG
AND 8 KM (4 NMI) WIDE FROM POINT 0126S 7838W TO POINT 0136S
7848W. THIS CLOUD IS ESTIMATED TO BE BETWEEN FL250 AND FL300
BASED ON PILOT OBSERVATIONS.
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TRAJECTORY: UPPER AIR PATTERNS SUGGEST ANY ASH UP TO FL300 TO
MOVE SOUTHWEST AT 10 TO 15 KNOTS. 
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OUTLOOK: SEE SIGMETS AND VAFTAD.
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THE NEXT STATEMENT WILL BE ISSUED BY 25/1915 UTC.
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REAL TIME SATELLITE IMAGERY ALONG WITH THIS AND OTHER VOLCANIC
ASH ADVISORIES 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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HUGHES
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NNNN"Attached Graphic Map Depicting Ash" 

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