FVXX20 KWBC 280235
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VOLCANIC ASH ADVISORY STATEMENT
ISSUED 0235 UTC 28 NOV 1999 BY THE WASHINGTON VAAC 
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GUAGUA PICHINCHA 99-119      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: REPORT FROM THE GEOFISCO INSTITUTO IN
ECUADOR
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ERUPTION DETAILS: NEW ERUPTION BEGINNING AT 28/0215 UTC.
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DETAILS OF ASH CLOUD: THE GEOFISCO INSTITUTO IN ECUADOR HAS REPORTED
THAT AN ERUPTION HAS OCCURRED JUST RECENTLY AT THE GUAGUA PICHINCHA
VOLCANO. PRELIMINARY REPORTS INDICATE THAT IT IS NOT AS INTENSE AS
THE ONE TWO NIGHTS BUT THAT IT WAS AT LEAST A MODERATE ERUPTION.
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SATELLITE IMAGERY OVER THE NEXT 30 MINUTES WILL BE ABLE TO CONFIRM
THE NATURE OF THE ASH PLUME INCLUDING A HEIGHT ASSESSMENT.
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TRAJECTORY: LATEST UPPER-AIR SOUNDING DATA INDICATES NORTHEASTERLY
WINDS OVER A DEEP LAYER OF THE ATMOSPHERE. IF ASH IS PRESENT
ANYWHERE FROM THE SUMMIT TO ABOUT FL500 THE MOVEMENT WOULD BE
SOUTHWEST AT 10 TO 20 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 AND VAFTAD.
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THE NEXT STATEMENT WILL BE ISSUED AS SOON AS SATELLITE IMAGERY
CONFIRMS THE NATURE OF THE EVENT.
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PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS.
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ORRISON
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