FVXX21 KWBC 110200
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VOLCANIC ASH ADVISORY STATEMENT
ISSUED 0200 UTC 11 MAY 1999 BY THE WASHINGTON VAAC
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COLIMA 99-027   MEXICO 19.51N 103.62W  
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BACKGROUND:    COLIMA MEXICO (1401-04)
               SUMMIT HEIGHT 13,451FT (4100M)
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SOURCES OF INFORMATION: GOES-8 VISIBLE INFRARED AND MULTISPECTRAL
IMAGERY...0000 UTC MEXICO CITY SOUNDING.
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ERUPTION DETAILS: ERUPTION AROUND 10/1855 UTC.
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DETAILS OF ASH CLOUD: AN ASH CLOUD WAS NOT DISCERNIBLE IN EITHER
INFRARED OR MULTISPECTRAL IMAGERY AT 0132 UTC. HIGH LEVEL CIRRUS
AND CONVECTIVE CLOUDS DOMINATE THE AREA.  HOWEVER GOES 8 VISIBLE
IMAGERY FROM 2340 UTC AND INTERPOLATION SUGGESTED THE POSSIBILITY OF
AN ASH CLOUD BOUNDED BY 20:06N/101:07W 20:05N/100:30W 19:12N/100:51W
19:13N/101:23W 20:06N/101:07W.  THEREFORE DIFFUSE ASH MAY STILL BE
PRESENT BUT UNDETECTABLE IN SATELLITE IMAGERY.  THE ASH WAS
ESTIMATED AT FL350.  NO ADDITIONAL ACTIVITY HAS BEEN NOTED AT
COLIMA.
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TRAJECTORY: TOWARD THE EAST AT 30 TO 35 KNOTS.
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THIS AND OTHER VOLCANIC 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 AND VAFTAD.
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THE NEXT MESSAGE WILL BE AT 11/0800 UTC.
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PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS.
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"Attached Graphic Map Depicting Ash" 

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