FVXX20 KWBC 090830
VOLCANIC ASH ADVISORY STATEMENT 
ISSUED 0830 UTC 09 APR 2000 BY THE WASHINGTON VAAC
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GUAGUA PICHINCHA 00-118         ECUADOR 0011S 7836W 
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BACKGROUND:    GUAGUA PICHINCHA ECUADOR (1502-02)
               SUMMIT HEIGHT    15695 FT (4784 M)  
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SOURCES OF INFORMATION: GOES-8 INFRARED AND MULTISPECTRAL
IMAGERY...6 HOUR FORECAST FROM THE 09/0000 UTC AVN MODEL. THE
GEOPHYSICAL INSTITUTE IN QUITO.
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ERUPTION DETAILS: SECOND EXPLOSIVE ERUPTION AT 0712 UTC. 
(FIRST AT 0504 UTC.)
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DETAILS OF ASH CLOUD: GOES-8 IMAGERY THROUGH 0745 UTC SHOWS AN
ASH PLUME WEST AND SOUTH OF THE VOLCANO.  BASED ON UPPER AIR
PATTERNS THE HEIGHT OF THIS PLUME IS ESTIMATED TO BE UP TO
FL300. THE INSTITUTE REPORTS THAT GUAGUA HAS HAD A SECOND
EXPLOSIVE ERUPTION BUT COULD NOT PROVIDE ANY OBSERVED DATA. 
IT IS LIKELY THAT THE VISIBLE PLUME IS FROM THIS SECOND
ERUPTION AS NO ASH WAS READILY DISCERNABLE COMING OUT OF
ECLIPSE.  THIS DOES NOT PRECLUDE THE POSSIBILITY OF ASH
FURTHER WEST AND SOUTHWEST INTERMIXED WITH CLOUDS.
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THE VISIBLE PLUME IS ROUGHLY BOUNDED BY POINTS... 0010S 07836W
TO 0005S 07856W TO 0022S 07857W TO 0027S 07853W AND 0015S
07835W.
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TRAJECTORY: ASH UP TO FL250 WOULD MOVE WEST SOUTHWEST AT 15 TO
20 KNOTS. ASH AT FL300 WOULD MOVE SOUTH AT ABOUT 15 KNOTS.
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OUTLOOK:  SEE SIGMETS
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THE NEXT STATEMENT WILL BE ISSUED ABOUT 09/1430 UTC.
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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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PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS.
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NNNN"Attached Graphic Map Depicting Ash" 

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