FVXX20 KWBC 041515
VOLCANIC ASH ADVISORY
ISSUED 1515 UTC 04 SEP 2000 BY THE WASHINGTON VAAC
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POPOCATEPETL 00-068         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 VISIBLE INFRARED AND MULTISPECTRAL IMAGERY.
04/1200 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 1445 UTC
CONTINUES TO SHOW A FAINT BUT DISTINCT ASH CLOUD DETACHED AND
MOVING WEST NORTHWEST AWAY FROM POPOCATEPETL. THE LEADING EDGE
OF THE CLOUD IS NOW AROUND 148 KM (80 NMI) FROM THE VOLCANO.
THE ASH IS AROUND 55 KM (30 NMI) WIDE BETWEEN POINTS 1913N
9956W AND 1943N 9924W. THE CLOUD IS MOVING AT 10 TO 15 KNOTS
TO THE WEST 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 WEST NORTHWEST AROUND 15 KNOTS.
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OUTLOOK: SEE SIGMETS AND VAFTAD
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THE NEXT ADVISORY WILL BE ISSUED BY 04/2115 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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NNNN"Attached Graphic Map Depicting Ash" 

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