FVXX21 KWBC 100710
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VOLCANIC ASH ADVISORY STATEMENT
ISSUED 0710 UTC 10 MAR 1999 BY THE WASHINGTON VAAC
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POPOCATEPETL 99-018   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: GOES-8 SATELLITE INFRARED AND MULTISPECTRAL
IMAGERY. GOES HIGH DENSITY WINDS.
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ERUPTION DETAILS: ERUPTION AT 10/0010 UTC TO FL210.
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DETAILS OF ASH CLOUD: A THIN FAINT ASH PLUME WAS OBSERVED MOVING
SOUTH FROM THE VOLCANO THROUGH 0345 UTC AT WHICH TIME THE SATELLITE
WENT INTO ECLIPSE. AT 0345Z THE FAINT PLUME EXTEND SOUTH (170
DEGREES) 115KM (62 NMI) AND WAS ROUGHLY 15KM (19 NMI) WIDE AND
ESTIMATED BETWEEN FL170 AND FL220). IN THE FIRST IMAGE AFTER ECLIPSE
AT 0645 UTC THE CLOUD WAS NO LONGER DETECTABLE. WE WILL CONTINUE TO
MONITOR THE AREA. THERE HAVE BEEN NO FURTHER REPORTS OF ASH. 
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TRAJECTORY: SOUTH AT 15-20KT.  
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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 SIGMETS
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THE NEXT STATEMENT WILL BE ISSUED AROUND 10/1O00 UTC.
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PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS.
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