FVXX20 KWBC 031045
VOLCANIC ASH ADVISORY
ISSUED: 2001JUL03/1045Z   VAAC: WASHINGTON
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VOLCANO: POPOCATEPETL 1401-09
LOCATION: 1901N 9837W   AREA: MEXICO
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SUMMIT ELEVATION: 17930 FT (5465 M)
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ADVISORY NUMBER: 2001/79.

INFORMATION SOURCE: GOES-8 MULTISPECTRAL AND INFRARED SATELLITE
IMAGERY. UPPER AIR OBSERVATION FROM MEXICO CITY. UPPER AIR FORECAST
VALID 1200Z. MEXICO CITY METEOROLOGICAL WATCH OFFICE. CENTER FOR
PREVENTION OF NATURAL DISASTERS. 
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ERUPTION DETAILS: MODERATE EXHALATION WITH ASH AT 0925Z. 
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DETAILS OF ASH CLOUD: GOES-8 IMAGERY THROUGH 1002Z SHOWS ASH MOVING
IN TWO SEPARATE DIRECTIONS FROM THE SUMMIT. THE FIRST CLOUD IS
MOVING NORTHWEST AT 5 TO 10 KNOTS AND IS EXTENDED 25 KM (13 NMI) TO
POINT 1911N 9846W. THE SECOND CLOUD IS MOVING SOUTHEAST AT 5 KNOTS
AND IS EXTENDED TO POINT 1856N 9829W. THE NORTHWEST ASH IS ESTIMATED
TO BE AT FL200 WHILE THE SOUTHEAST ASH IS ESTIMATED TO BE AT FL300. 
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TRAJECTORY: ASH AT FL200 IS MOVING NORTHWEST AT 5 TO 10 KNOTS. ASH
TO FL300 IS MOVING SOUTHEAST AT 10 KNOTS.        
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OUTLOOK:  SEE SIGMETS AND VAFTAD.
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THE NEXT ADVISORY WILL BE ISSUED BY 03/1700Z.
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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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HUGHES/GS
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NNNN"Attached Graphic Map Depicting Ash Only" 

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