FVXX20 KWBC 281600
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VOLCANIC ASH ADVISORY STATEMENT-WATCH 
ISSUED 1600 UTC 28 FEB 1999 BY THE WASHINGTON VAAC
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COLIMA  99-023  MEXICO    19.51N 103.62W 
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BACKGROUND:    COLIMA MEXICO (1401-04)
               SUMMIT HEIGHT 13451 FT (4100 M)

THE WATCH VAAS FOR COLIMA IS BEING DISCONTINUED AT THIS TIME BUT WILL
BE REACTIVATED IF CONDITIONS WARRANT.  THE COLIMA CENTER OF
ENVIRONMENTAL RESEARCH REPORTS THAT THE WARNING SIGNS FOR A POTENTIAL
EXPLOSIVE ERUPTION HAVE DECREASED.  HOWEVER THE VOLCANO REMAINS
SOMEWHAT UNSTABLE AND CAUTION SHOULD BE EXERCISED.
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WE WILL CONTINUE TO MONITOR THE AREA AND IF THERE IS AN ASH CLOUD
OBSERVED OR REPORTED AT ANY ALTITUDE A VOLCANIC ASH ADVISORY
STATEMENT WARNING WILL BE ISSUED AS SOON AS POSSIBLE.  
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THE WATCH VAAS IS ISSUED ONLY FOR SEISMICALLY MONITORED VOLCANOES AND
BASED ON INFORMATION RECEIVED FROM THE GEOLOGICAL COMMUNITY.  A WATCH
VAAS WILL BE ISSUED DAILY WHEN INFORMATION IS RECEIVED TO INDICATE
THAT A VOLCANO IS RESTLESS AND HAS THE POTENTIAL FOR AN EXPLOSIVE
ERUPTION WITH LITTLE OR NO WARNING. NON-EXPLOSIVE LOW LEVEL AND NEAR
SUMMIT ACTIVITY MAY BE OCCURRING AT PRESENT.
SEE NOAA-ARL HOMEPAGE FOR TEST-VAFTAD AT:
HTTP://WWW.ARL.NOAA.GOV/VAFTAD.HTML (ALL LOWER CASE)
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THIS WILL BE THE FINAL STATEMENT ON THIS EVENT UNLESS CONDITIONS
CHANGE.
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