FVXX22 KWBC 161400  
VOLCANIC ASH ADVISORY 
ISSUED 1400 UTC 14 SEP 2000 BY THE WASHINGTON VAAC
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POPOCATEPETL 00-070         MEXICO 1901N 9837W 
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BACKGROUND:    POPOCATEPETL MEXICO (1401-09)
               SUMMIT HEIGHT 17930 FT (5465 M)
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SOURCES OF INFORMATION: GOES-8 VISIBLE...INFRARED...AND
MULTISPECTRAL IMAGERY. POPOCATEPETL VOLCANO WEB CAMERA FROM
CENAPRED. THE MEXICO CITY METEOROLOGICAL WATCH OFFICE. 
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ERUPTION DETAILS: SMALL EMISSIONS WITH A WATER VAPOR PLUME.
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DETAILS OF ASH CLOUD: THE CENAPRED VOLCANO CAMERA AT 1350 UTC
SHOWED A PLUME OF MOSTLY WATER VAPOR BEING EMITTED FROM
POPOCATEPETL. AN ANALYSIS OF GOES-8 VISIBLE IMAGERY THROUGH
1332 UTC DID INDICATE A VERY SMALL PLUME MOVING TO THE WEST
FROM THE SUMMIT. THIS ASH IS OBSERVED TO BE AT A HEIGHT AT OR
JUST BELOW FL200 (BASED ON THE CAMERA OBSERVATION). THE MEXICO
CITY MET WATCH OFFICE REPORTED THAT THE PLUME WAS MOSTLY WATER
VAPOR AND VERY LITTLE ASH IF ANY.
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TRAJECTORY: UPPER AIR PATTERNS SUGGEST ANY ASH UP TO FL200
WOULD MOVE WEST AT 5 TO 10 KNOTS.
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OUTLOOK:  SEE SIGMETS.
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THE NEXT ADVISORY WILL BE ISSUED BY 16/2000 UTC.
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REAL TIME SATELLITE IMAGERY AND VOLCANIC ASH ADVISORIES 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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HUGHES
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