FVXX20 KWBC 121700
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VOLCANIC ASH ADVISORY STATEMENT
ISSUED 1700 UTC 12 MAR 1999 BY THE WASHINGTON VAAC
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POPOCATEPETL 99-023   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: METEOROLOGICAL WATCH OFFICE IN MEXICO
CITY...GOES-8 IMAGERY...POPO CAMERA
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ERUPTION DETAILS:  APPROXIMATELY 12/1552 UTC.
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DETAILS OF ASH CLOUD: THE 1552 UTC SHORT-DURATION EXHALATION OF ASH
RESULTED IN A FAINT ASH CLOUD THAT DISSIPATED NEAR 19.1N 98.4W AT
1632 UTC.  THE CLOUD TOP WAS ESTIMATED AT FL240.  A CAMERA OBSERVING
THE SUMMIT INDICATED A MINOR STEAM PLUME EMANATING FROM THE VOLCANO
AT 1653 UTC. 
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TRAJECTORY: ANY REMAINING DIFFUSE ASH WOULD MOVE TOWARD THE EAST
NORTHEAST AT 20 KNOTS.
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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/messages.html
(all lower case except /VAAC/)
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OUTLOOK: SEE VAFTAD AND SIGMETS.
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THE NEXT STATEMENT WILL BE ISSUED AT 12/2300.
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PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS.
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