FVXX21 KWBC 171535
VOLCANIC ASH ADVISORY
ISSUED 1535 UTC 17 NOV 2000 BY THE WASHINGTON VAAC
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POPOCATEPETL 00-117         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: GOES-8 VISIBLE..INFRARED AND
MULTISPECTRAL IMAGERY. MEXICO CITY METEOROLOGICAL WATCH
OFFICE. UPPER AIR WIND FORECAST FROM AVIATION MODEL.
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ERUPTION DETAILS: STEAM AND POSSIBLE ASH EMISSION AT 17/1510
UTC
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DETAILS OF ASH CLOUD: THE MEXICO CITY METEOROLOGICAL WATCH
OFFICE REPORTS A STEAM AND ASH EMISSION FROM THE VOLCANO. THE
NEAR INFRARED SATELLITE IMAGERY THROUGH 17/1515 UTC SHOWS A
DEFINITE HOT SPOT OVER THE VOLCANO BUT THE ASH PLUME IS TOO
THIN TO DETECT IN VISIBLE IMAGERY.  THE PLUME IS ESTIMATED TO
BE UP TO FL210 MOVING TOWARDS THE NORTH NORTHWEST.
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TRAJECTORY: ASH FROM THE SUMMIT TO FL210 WILL MOVE TOWARDS THE
NORTH NORTHWEST AT 10 TO 15 KTS. 
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OUTLOOK: SEE SIGMETS 
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THE NEXT MESSAGE WILL BE ISSUED AT 17/2130 UTC.
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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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KARST
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