FVXX21 KWBC 251800
VOLCANIC ASH ADVISORY 
ISSUED: 2000DEC25/1800Z  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: 2000/211
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INFORMATION SOURCE: GOES-8 VISIBLE INFRARED AND MULTISPECTRAL
IMAGERY. MEXICO CITY MWO. UPPER WINDS FORECAST FROM THE AVIATION
MODEL.
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ERUPTION DETAILS: NEW ERUPTION AT 25/1645Z.
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DETAILS OF ASH CLOUD: ASH IS NO LONGER VISIBLE OVER GUATEMALA AT
25/1715Z.  HOWEVER ANOTHER NEW PLUME WAS VISIBLE FOR ONE IMAGE AT
1645Z.  THIS PLUME EXTENDED NORTHEAST..LESS THAN 5KM.. AWAY FROM THE
SUMMIT.  THIS NEW PLUME IS NO LONGER VISIBLE IN SUBSEQUENT IMAGES. 
THE MEXICO CITY MWO PLACED THE HEIGHT OF THIS NEW ASH PLUME BETWEEN
FL180 AND FL250.
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TRAJECTORY: ASH BETWEEN FL180 AND FL250 WOULD MOVE TOWARDS THE
NORTHEAST AT 20-30 KNOTS.
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OUTLOOK: SEE SIGMETS.
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THE NEXT MESSAGE WILL BE ISSUED AT 26/0000Z.
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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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