FVXX20 KWBC 061630
VOLCANIC ASH ADVISORY
ISSUED 1630 UTC 06 JUL 2000 BY THE WASHINGTON VAAC
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POPOCATEPETL 00-039  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: MEXICO CITY METEOROLOGICAL WATCH
OFFICE...POPO CAM...AVIATION MODEL WINDS...GOES 8 VISIBLE
INFRARED AND MULTISPECTRAL IMAGERY
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ERUPTION DETAILS: EMISSIONS OF STEAM AND ASH AT 06/1503 UTC
AND O6/1506 UTC
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DETAILS OF ASH CLOUD: EMISSIONS OF STEAM AND ASH TO FL220 WERE
REPORTED BY THE MEXICO CITY MWO. NO ASH CAN BE SEEN IN
SATELLITE IMAGERY THROUGH 1615 UTC.  THE INABILITY TO DETECT
ASH IN IMAGERY IS DUE EITHER TO THE ASH BEING TOO DIFFUSE OR
THE ASH BEING OBSCURED BY SCATTERED WEATHER CLOUDS WEST OF THE
VOLCANO. 
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TRAJECTORY: UPPER AIR PATTERNS SUGGEST THAT ASH AT ABOUT FL220
WOULD MOVE WEST OR NORTHWEST AT ABOUT 10 KNOTS.
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OUTLOOK: SEE SIGMETS.
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THE NEXT MESSAGE WILL BE ISSUED BY 16/2230 UTC. 
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REAL TIME SATELLITE IMAGERY ALONG WITH THIS AND OTHER 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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