FVXX20 KWBC 190630
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VOLCANIC ASH ADVISORY STATEMENT
ISSUED 0630 UTC 19 FEB 1999 BY THE WASHINGTON VAAC
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COLIMA 99-008  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 INFRARED AND MULTISPECTRAL IMAGERY.
SIGMET FROM MEXICO CITY METEOROLOGICAL WATCH OFFICE.  U.S. NATIONAL
WEATHER SERVICE NUMERICAL MODELS.
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ERUPTION DETAILS: EXHALATION OCCURRED AT 18/1735 UTC.
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DETAILS OF ASH CLOUD: NO ASH CAN BE SEEN IN SATELLITE IMAGERY
THROUGH 0545 UTC. HOWEVER A MEXICO CITY METEOROLOGICAL WATCH OFFICE
SIGMET INDICATES THAT VOLCANIC ASH BETWEEN FL140 AND FL170 WAS
OBSERVED AT 18/2300 UTC EXTENDING 15 NMI (28 KM) SOUTHEAST. THE
OUTLOOK SECTION OF THE SIGMET CONTINUES TO FORECAST ASH THROUGH THE
PRESENT TIME.
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TRAJECTORY: ANY ASH FROM FL140 TO FL170 WILL MOVE TOWARDS THE EAST
OR SOUTHEAST AT ABOUT 15 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
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THE NEXT MESSAGE WILL BE ISSUED BY 19/1230 UTC.
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PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS.
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