FVXX22 KWBC 111505
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VOLCANIC ASH ADVISORY STATEMENT
ISSUED 1505 UTC 11 OCT 1999 BY THE WASHINGTON VAAC 
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POPOCATEPETL 99-099  MEXICO 19.02N 98.62W 
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BACKGROUND:    POPOCATEPETL MEXICO (1401-09)
               SUMMIT HEIGHT 17930 FT (5465 M)
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SOURCES OF INFORMATION:  MEXICO CITY MWO...PILOT REPORT...GOES 8
SATELLITE IMAGERY...12Z UPPER AIR SOUNDING FROM MEXICO CITY
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ERUPTION DETAILS: ERUPTION OCCURRED AT 11/1417 UTC. 
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DETAILS OF ASH CLOUD: THE MEXICO CITY METEOROLOGICAL WATCH OFFICE
REPORTED A SMALL EMISSION OF WATER VAPOR AND ASH OCCURRED AT 1417
UTC.  GOES 8 VISIBLE IMAGERY AT 1432 UTC INDICATED A POSSIBLE SMALL
ASH CLOUD OF 2 KM RADIUS CENTERED NEAR 18.9N 98.7W.  THE ASH CLOUD
WAS ROUGHLY 11 KM TO THE SOUTHWEST OF THE SUMMIT AND WAS ESTIMATED
TO BE AT FL200.
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TRAJECTORY: TOWARD THE SOUTHWEST AT 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  
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 MESSAGE WILL BE ISSUED AROUND 11/2100 UTC.
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PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS.
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TURK/STREETT/HUGHES
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NNNN