FVXX20 KWBC 180800
VOLCANIC ASH ADVISORY
ISSUED: 2000DEC18/0800Z  VAAC: WASHINGTON
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VOLCANO: POPOCATEPETL 1401-09
LOCATION: 1901N 9837W    AREA: MEXICO
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SUMMIT ELEVATION: 17930 FT (5465 M)
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ADVISORY NUMBER: 2000/191
                                                              
INFORMATION SOURCE: GOES-8 INFRARED AND MULTISPECTRAL IMAGERY. 
6 HOUR WIND FORECAST FROM THE 19/0000Z AVIATION MODEL. 
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ERUPTION DETAILS: ERUPTION BEGAN ABOUT 17/1250Z 
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DETAILS OF ASH CLOUD:  ASH IS NO LONGER SEEN IN THE SATELLITE
IMAGERY THROUGH 18/0715Z DUE TO THE FACT THAT HIGH LEVEL
CIRRUS CLOUDS HAVE MOVED OVER THE AREA.  THE PLUME WAS LAST
OBSERVED AROUND 18/0400Z.  IN ADDITION A WELL DEFINED HOTSPOT
CONTINUES TO BE SEEN ON THE MULTISPECTRAL IMAGERY.
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TRAJECTORY: ASH FROM THE SUMMIT TO FL250 WOULD MOVE SOUTH
SOUTHWEST AT ABOUT 10 KNOTS. ASH TO FL300 WOULD MOVE TOWARD
THE NORTHEAST AT 20 KNOTS.
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OUTLOOK: SEE SIGMETS AND VAFTAD.
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THE NEXT MESSAGE WILL BE ISSUED BY 18/1400Z.
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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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WALTER
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