FVXX20 KWBC 152040
VOLCANIC ASH ADVISORY
ISSUED: 2000DEC15/2040Z  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: 2000/180
                                                              
INFORMATION SOURCE: GOES-8 VISIBLE ... INFRARED AND
MULTISPECTRAL IMAGERY. 1200Z MEXICO CITY UPPER AIR SOUNDINGS.
MEXICO CITY MWO
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ERUPTION DETAILS: CONTINUING ASH EMISSIONS 
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DETAILS OF ASH CLOUD: GOES8 IMAGERY THROUGH 2002Z SHOWS AN
AREA OF THICK ASH NEAR THE SUMMIT BELIEVED TO BE UP TO FL250.
THIS AREA IS BOUNDED BY 1903N 9837W TO 1907N 9912W TO 1853N
9923W AND 1858N 9839W. SURROUNDING THIS AREA IS THINNER ASH
ESTIMATED AT FL200 AND BOUNDED BY 1910N 9842W TO 1902N 9928W
TO 1800N 10008W AND 1803N 9833W.  CIRRUS CLOUDS ALONG THE
SOUTHERN BOARDER OF THIS AREA MAY BE OBSCURING SOME ASH.
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THE AREA OF ASH PREVIOUSLY LABELED AS DISPERSING IS NO LONGER
VISIBLE IN SATELLITE IMAGERY. 
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TRAJECTORY: ASH FROM THE SUMMIT TO FL200 WOULD MOVE SOUTH AND
SOUTHWEST AT ABOUT 5 KTS.  ASH BETWEEN FL200 AND FL250 IS
MOVING WEST TO SOUTHWEST AT 5 KTS.
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OUTLOOK: SEE SIGMETS AND VAFTAD.
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THE NEXT MESSAGE WILL BE ISSUED BY 16/0300Z.
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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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NNNN"Attached Graphic Map Depicting Ash" 

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