FVXX20 KWBC 101435
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VOLCANIC ASH ADVISORY STATEMENT
ISSUED 1435 UTC 10 NOV 1999 BY THE WASHINGTON VAAC 
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GUAGUA PICHINCHA 99-079 ECUADOR 0.17S 78.60W 
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BACKGROUND:    GUAGUA PICHINCHA ECUADOR (1502-02)
               SUMMIT HEIGHT    15695 FT (4784 M)  
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SOURCES OF INFORMATION:  GEOPHYSICAL INSTITUTE IN QUITO...VISIBLE
INFRARED AND MULTISPECTRAL GOES-8 SATELLITE IMAGERY...00 UTC UPPER
AIR DATA FROM GUAGUA PICHINCHA...13 UTC SURFACE REPORT FROM
QUITO/MARISCAL
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ERUPTION DETAILS: REPORTED MINOR EXPLOSIVE ERUPTIONS AT 10/0643 AND
10/1151 UTC.
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DETAILS OF ASH CLOUD: NO ASH IS VISIBLE IN SATELLITE IMAGERY THROUGH
10/1415 UTC.  HOWEVER THERE ARE METEOROLOGICAL CLOUDS IN THE AREA
WHICH MIGHT BE OBSCURING ASH.  THE 13Z METAR FROM QUITO/MARISCAL
REPORTED REPORTS EXPLOSIONS OF GAS AND VOLCANIC ASH MOVING NORTHEAST
OF THE STATION. THE GEOPHYSICAL INSTITUTE REPORTED ASH FALLS LIGHT
ASH IN NORTHERN QUITO. ASH IS REPORTED AT APPROXIMATELY FL250.
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TRAJECTORY: UPPER AIR PATTERNS SUGGEST THAT ANY ASH BETWEEN AROUND
FL250 WOULD MOVE TOWARD THE EAST AT ABOUT 5 KNOTS.
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REAL TIME SATELLITE IMAGERY ALONG WITH THIS AND OTHER VOLCANIC ASH
ADVISORY STATEMENTS 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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OUTLOOK:  SEE SIGMETS
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THE NEXT STATEMENT WILL BE ISSUED BY 10/2030 UTC.
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PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS.
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