FVXX20 KWBC 171200
VOLCANIC ASH ADVISORY
ISSUED: 2001AUG17/1200Z   VAAC: WASHINGTON
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VOLCANO: TUNGURAHUA  1502-08                                
LOCATION: 0128S 7826W    AREA: ECUADOR
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SUMMIT ELEVATION: 16480 FT (5023 M)
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ADVISORY NUMBER: 2001/183
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INFORMATION SOURCE: GOES-8 VISIBLE/INFRARED/MULTISPECTRAL IMAGERY. 17/1200Z
UPPER WINDS FORECAST FROM THE 17/0600Z AVIATION MODEL. GUAYAQUIL MET WATCH
OFFICE.
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ERUPTION DETAILS: NEARLY CONTINUOUS ERUPTION SINCE 06/1203Z.
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DETAILS OF ASH CLOUD: GOES-8 IMAGERY THROUGH 1115Z INDICATES THE VOLCANO HAS
ENTERED A RELATIVELY QUIET STAGE. NO ASH CAN BE DETECTED IN SATELLITE IMAGERY
FROM PREVIOUS ERUPTIONS. THE VOLCANO REMAINS IN A VERY ACTIVE STATE AND COULD
PRODUCE ASH EMISSIONS AT ANYTIME. 
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TRAJECTORY: UPPER AIR PATTERNS SUGGEST ANY ASH AT OR NEAR SUMMIT LEVEL TO MOVE
WEST AT 5 TO 10 KNOTS. ASH FROM FL170 TO FL300 WOULD MOVE NORTHWEST AT 5 TO 10
KNOTS. ASH ABOVE FL300 WOULD MOVE NORTHEAST AT 15 TO 20 KNOTS.
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OUTLOOK: SEE SIGMETS AND VAFTAD.
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THE NEXT ADVISORY WILL BE ISSUED BY 17/1800Z.
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INTERNET URLS...
MESSAGE LISTSERV   WWW.SSD.NOAA.GOV/VAAC/SUBSCRIBE.HTML
MESSAGES GRAPHICS AND IMAGERY   WWW.SSD.NOAA.GOV/VAAC/WASHINGTON.HTML
(ALL LOWERCASE EXCEPT /VAAC/)
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PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS.
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HUGHES
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