FVXX21 KWBC 181930
VOLCANIC ASH ADVISORY
ISSUED: 2001SEP18/1930  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: 2001/256
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INFORMATION SOURCE: GOES-8 VISIBLE/INFRARED/MULTISPECTRAL IMAGERY.
18/1800Z UPPER WINDS FORECAST FROM THE 18/1200Z AVIATION MODEL.
SIGMET FROM GUAYAQUIL METEOROLOGICAL WATCH OFFICE.
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ERUPTION DETAILS: ASH REPORTED AT 1900Z.  
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DETAILS OF ASH CLOUD: A SURFACE OBSERVATION REPORTS ASH OVER THE
VOLCANO TO FL240. GOES-8 IMAGERY THROUGH 1915Z DOES NOT SHOW THE
PRESENCE OF ASH DUE TO LOW AND MID LEVEL SCATTERED CLOUDS OBSCURING
THE VOLCANO. THE OBSERVATION REPORTS ASH MOVING NORTH TO NORTHWEST. 
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TRAJECTORY: UPPER AIR PATTERNS SUGGEST ASH AT OR NEAR SUMMIT LEVEL TO
FL250 WOULD MOVE WEST AT 10 TO 15 KNOTS.
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OUTLOOK:  SEE SIGMETS.
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THE NEXT ADVISORY WILL BE ISSUED BY 19/0130Z
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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/KARST
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