FVXX21 KWBC 182130
VOLCANIC ASH ADVISORY
ISSUED 2130 UTC 18 AUG 2000 BY THE WASHINGTON VAAC
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TUNGURAHUA 00-968         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. 18/1800 UTC UPPER WINDS FORECAST FROM
THE 18/1200 UTC AVIATION MODEL. THE GEOPHYSICAL INSTITUTE IN
QUITO. 
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ERUPTION DETAILS: OCCASIONAL GAS AND ASH EMISSIONS. 
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DETAILS OF ASH: GOES-8 IMAGERY THROUGH 20:45 UTC DOES NOT
INDICATE THE PRESENCE OF ASH. THE GEOPHYSICAL INSTITUTE
REPORTS THAT THERE HAS BEEN MODERATE NEAR SUMMIT ACTIVITY AS
THE VOLCANO REMAINS ACTIVE.  
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TRAJECTORY: UPPER AIR PATTERNS SUGGEST ANY ASH AT OR NEAR
SUMMIT LEVEL TO MOVE WEST NORTHWEST AT 10 TO 15 KNOTS.
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OUTLOOK: SEE SIGMETS.
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THE NEXT ADVISORY WILL BE ISSUED BY 19/0330 UTC.
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REAL TIME SATELLITE IMAGERY AND 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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