FVXX22 KWBC 161430 
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VOLCANIC ASH ADVISORY STATEMENT-CORRECTION FOR MESSAGE NUMBER
ISSUED 1430 UTC 16 JULY 1999 BY THE WASHINGTON VAAC 
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POPOCATEPETL 99-083 MEXICO 19.0N 98.6W 
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BACKGROUND:    POPOCATEPETL MEXICO (1401-09)
               SUMMIT HEIGHT 17930 FT (5465 M)
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SOURCES OF INFORMATION: GOES-8 INFRARED AND MULTI-SPECTRAL IMAGERY
16/1200 UTC MEXICO CITY SOUNDING
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ERUPTION DETAILS: MEXICO CITY MWO REPORTED AN ERUPTION AT 16/1410
UTC.
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DETAILS OF ASH CLOUD: SATELLITE IMAGERY THROUGH 1415 INDICATES A
VERY SMALL HINT OF AN ERUPTION WITH ASH ONLY IN THE IMMEDIATE
VICINITY OF THE VOLCANO.  A SMALL ASH AND STEAM PLUME WAS VISIBLE ON
THE CENEPRED INTERNET SITE.  THIS ASH IS BETWEEN FL180 AND FL210 
MOVING TO THE WEST NORTH WEST AT ABOUT 7 KTS.
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TRAJECTORY: UPPER AIR DATA SUGGEST THAT ASH WOULD MOVE TOWARD THE
WEST NORTHWEST AT 7 TO 10 KTS. 
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REAL TIME SATELLITE IMAGERY ALONG WITH THIS AND OTHER VOLCANIC ASH
ADVISORY STATEMENTS OFTEN ACCOMPANIED BY A MAP DEPICTING ASH
LOCATION ARE AVAILABLE AT INTERNET URL ADDRESS  
www.ssd.noaa.gov/VAAC/washington.html
(all lower case except /VAAC/)
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OUTLOOK:  SEE SIGMETS.
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THE NEXT MESSAGE WILL BE ISSUED BY 16/2030 UTC UNLESS ADDITIONAL
INFORMATION BECOMES AVAILABLE.
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PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS.
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