FVXX22 KWBC 071450
VOLCANIC ASH ADVISORY STATEMENT
ISSUED 1450 UTC 07 DEC 1999 BY THE WASHINGTON VAAC 
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POPOCATEPETL 99-108  MEXICO 19.02N 98.62W 
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BACKGROUND:    POPOCATEPETL MEXICO (1401-09)
               SUMMIT HEIGHT 17930 FT (5465 M)
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SOURCES OF INFORMATION: MWO MEXICO CITY.  GOES-8 VISIBLE..INFRARED
AND MULTISPECTRAL IMAGERY. POPO CAM. 1200 UTC MEXICO CITY UPPER AIR
SOUNDING.
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ERUPTION DETAILS: PUFF OF ASH AND STEAM 07/1355 UTC.
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DETAILS OF ASH CLOUD: THE MWO IN MEXICO CITY CALLED TO REPORT A
SERIES OF PUFFS OF BOTH ASH AND STEAM BEGINNING AROUND 1100 UTC WITH
THE MOST RECENT AT 1355.  THE ASH WAS REPORTED TO FL210 AND MOVING
TO THE EAST NORTHEAST.  SATELLITE IMAGERY THROUGH 1432 UTC  DOES
SHOW A FAINT PLUME IN THE IMMEDIATE VICINITY OF THE VOLCANO AND A
SECOND DETACHED PLUME EAST NORTHEAST OF THE SUMMIT AND WITHIN 36 KM
(20 NMI).
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TRAJECTORY: ASH BETWEEN FL200 AND FL220 WOULD MOVE EAST NORTHEAST AT
10 TO 15 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 LATEST SIGMETS.
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EFFECTIVE JANUARY 3 2000 AT 0000 UTC... ALL REFERENCES TO LATITUDE
AND LONGITUDE IN VOLCANIC ASH ADVISORY STATEMENTS WILL BE IN DEGREES
AND MINUTES OF A DEGREE. EXAMPLE: 16.70N 62.20W  WILL BE  1642N6212W
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THE NEXT STATEMENT WILL BE ISSUED AROUND 07/2100 UTC.
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PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS.
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NNNN"Attached Graphic Map Depicting Ash" 

"Graphic Map Depicting Ash"