FVXX20 KWBC 181830
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VOLCANIC ASH ADVISORY STATEMENT
ISSUED 1830 UTC 18 FEB 1999 BY THE WASHINGTON VAAC
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COLIMA 99-006  MEXICO 19.51N 103.62W
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BACKGROUND:    COLIMA MEXICO (1401-04)
               SUMMIT HEIGHT 13451 FT (4100 M)
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SOURCES OF INFORMATION: GOES 8 VISIBLE INFRARED AND MULTISPECTRAL
IMAGERY. COLIMA OBSERVATORY.1200UTC UPPER AIR SOUNDING FROM
GUADALAJARA
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ERUPTION DETAILS: EXHALATION OCCURRED AT 18/1735 UTC.
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DETAILS OF ASH CLOUD: GOES 8 SATELLITE IMAGERY THRU 18/1745 UTC
SHOWS AN EXHALATION OF COLIMA TO FL180.  THE ASH IS MOVING
SOUTHEASTWARD AT 15 TO 20 KTS.  THE LEADING EDGE OF THE ASH IS AT
19.4N 103.5W WHICH IS 14 KM (7.5 NMI) SOUTHEAST OF THE VOLCANO.  THE
PLUME IS 6 KM (4 NMI) WIDE.  
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TRAJECTORY: ASH FROM FL130 TO FL180 WILL MOVE TOWARDS THE SOUTHEAST
AT 15 TO 20 KTS.
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THIS AND OTHER VOLCNIC ASH ADVISORY STATEMENTS OFTEN ACCOMPANIED BY
A MAP DEPICTING ASH LOCATION ARE AVAILABLE AT INTERNET URL ADDRESS
www.ssd.noaa.gov/VAAC/messages.html
(all lower case except /VAAC/)
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OUTLOOK: SEE SIGMETS
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THE NEXT MESSAGE WILL BE ISSUED AROUND 19/0030 UTC.
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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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