FVXX21 KWBC 040100
VOLCANIC ASH ADVISORY
ISSUED 0100 UTC 04 AUG 2000 BY THE WASHINGTON VAAC
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TUNGURAHUA 00-908         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. SIX HOUR WIND FORECAST FROM THE 03/1800 UTC AVIATION
MODEL. GEOPHYSICAL INSTITUTE.
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ERUPTION DETAILS: LATEST ERUPTION AT 03/2339 UTC.
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DETAILS OF ASH: SATELLITE IMAGERY THROUGH 04/0015 UTC SHOWS
LOW AND MID LEVEL CLOUDINESS OVER THE VOLCANO BUT THE PLUME IS
DETECTED IN MULTISPECTRAL IMAGERY. THE ASH WAS ESTIMATED
BETWEEN FL280 TO FL310 BASED ON AN OBSERVATION OF AN ERUPTION
FROM THE GEOPHYSICAL INSTITUTE AT 03/2339 UTC. THE LEADING
EDGE OF THE ASH AT 0015 UTC WAS LOCATED AT 0134S 7854W WHICH
IS 52 KM (28 NMI) FROM THE SUMMIT AND THE PLUME IS 44 KM (23
NMI) LONG.

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TRAJECTORY: ASH FROM THE SUMMIT TO FL300 WILL MOVE TOWARD THE
WEST AROUND 20 TO 25 KNOTS.
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OUTLOOK: SEE SIGMETS AND VAFTAD.
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THE NEXT STATEMENT WILL BE ISSUED BY 04/0730 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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NNNN"Attached Graphic Map Depicting Ash" 

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