FVXX20 KWBC 211800
VOLCANIC ASH ADVISORY
ISSUED: 2001NOV21/1800Z   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: 2001/103
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INFORMATION SOURCE: GOES-8 VISIBLE INFRARED AND MULTISPECTRAL
IMAGERY. MEXICO CITY MET WATCH OFFICE. AVIATION MODEL WIND FORECAST. 
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ERUPTION DETAILS: EXHALATION AT 21/1732Z
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DETAILS OF ASH CLOUD: THE MEXICO CITY MET WATCH OFFICE REPORTS AN
EXHALATION OF THE VOLCANO. THEY COULD NOT ESTIMATE A HEIGHT OF
THE EXHALATION DUE TO EXTENSIVE CLOUDS OVER THE REGION. IN ADDITION
SATELLITE IMAGERY THROUGH 1745Z DOES NOT INDICATE ASH.
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TRAJECTORY: ANY ASH AT NEAR SUMMIT LEVEL WILL MOVE TOWARDS THE EAST
AT 35 TO 40 KTS. 
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OUTLOOK:  SEE SIGMETS.
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THIS WILL BE THE ONLY MESSAGE FOR THIS EVENT.
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INTERNET URLS...
MESSAGE LISTSERV   WWW.SSD.NOAA.GOV/VAAC/SUBSCRIBE.HTML
MESSAGES GRAPHICS AND IMAGERY   WWW.SSD.NOAA.GOV/VAAC/WASHINGTON.HTML
(ALL LOWERCASE EXCEPT /VAAC/)
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PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS.
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KARST/WALTER
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