FVXX20 KWBC 040945
VOLCANIC ASH ADVISORY
ISSUED 0945 UTC 04 SEP 2000 BY THE WASHINGTON VAAC
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POPOCATEPETL 00-067         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: MEXICO CITY METEOROLOGICAL WATCH
OFFICE.  GOES-8 INFRARED AND MULTISPECTRAL IMAGERY. 04/0000
UTC UPPER AIR SOUNDING FROM MEXICO CITY.
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ERUPTION DETAILS: ERUPTION AT ABOUT 0847 UTC.
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DETAILS OF ASH CLOUD: GOES-8 IMAGERY THROUGH 0915 UTC SHOWS A
SMALL BUT DISTINCT ASH CLOUD DETACHED AND MOVING AWAY FROM
POPOCATEPETL TO THE NORTHWEST. THIS CLOUD IS LOCATED APPROX 23
KM (12 NMI) TO THE NORTHWEST (321 DEGREES) AND IS WITHIN 5 KM
(3 NMI) RADIUS AROUND A POINT 1910N 9844W. THIS CLOUD IS
MOVING AT 20 TO 25 KNOTS TO THE NORTHWEST AND IS ESTIMATED TO
BE AT OR BELOW FL310. 
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TRAJECTORY: UPPER AIR PATTERNS SUGGEST ANY ASH UP TO FL310 TO
MOVE NORTHWEST AT 15 TO 20 KNOTS.
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OUTLOOK: SEE SIGMETS AND VAFTAD
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THE NEXT ADVISORY WILL BE ISSUED BY 04/1600 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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TURK/HUGHES
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NNNN"Attached Graphic Map Depicting Ash" 

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