FVXX20 KWBC 182000
VOLCANIC ASH ADVISORY
ISSUED: 2000DEC18/2000Z  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: 2000/193
                                                              
INFORMATION SOURCE: GOES-8 VISIBLE...INFRARED AND
MULTISPECTRAL IMAGERY.  12Z UPPER AIR DATA FROM MEXICO CITY.
POPOCATEPETL CAMERA. 
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ERUPTION DETAILS: ERUPTION BEGAN ABOUT 17/1250Z. 
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DETAILS OF ASH CLOUD: NO ASH COULD BE DISCERNED IN SATELLITE
IMAGERY THROUGH 1945Z AS HIGH AND LOW CLOUD HAVE OBSCURED THE
SUMMIT.  THERE WAS ALSO NO INDICATION OF THE RESIDUAL ASH
CLOUD SEEN EARLIER FAR TO THE WEST SOUTHWEST OF THE SUMMIT.
THE POPOCATEPETL CAMERA SUGGESTED THAT AN INTERMITTENT PLUME
OF STEAM AND POSSIBLY SOME ASH CONTINUES TO RISE FROM THE
CRATER.  A HOT SPOT HAS BEEN NOTED IN SATELLITE IMAGERY
THROUGH BREAKS IN THE CLOUD.  
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TRAJECTORY: ANY ASH THAT MAY EXIST NEAR THE SUMMIT TO FL300
WOULD MOVE TOWARDS THE EAST NORTHEAST AT 15 TO 20 KNOTS.
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OUTLOOK: SEE SIGMETS AND VAFTAD.
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THE NEXT MESSAGE WILL BE ISSUED BY 19/0200Z.
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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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TURK/RUMINSKI
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