FVXX21 KWBC 302000
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VOLCANIC ASH ADVISORY STATEMENT 
ISSUED 2000 UTC 30 OCTOBER 1999 BY THE WASHINGTON VAAC 
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TUNGURAHUA 99-050      ECUADOR 1.47S 78.44W 
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BACKGROUND:    TUNGURAHUA ECUADOR (1502-08)
               SUMMIT HEIGHT 16480 FT (5023 M)
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SOURCES OF INFORMATION: GOES-8 INFRARED AND MULTISPECTRAL IMAGERY... 
NATIONAL WEATHER SERVICE NUMERICAL WEATHER MODEL DATA.  
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ERUPTION DETAILS: OCCASIONAL VENTING OF ASH AND STEAM.
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DETAILS OF ASH: GOES-8 SATELLITE IMAGERY THROUGH 30/1915 UTC SHOWS
SCATTERED SHOWERS AND THUNDERSTORMS IN THE VICINITY OF THE VOLCANO
SITE. THERE IS NO ASH VISIBLE AT THIS TIME. IT WOULD APPEAR THAT
THE LEVEL OF ACTIVITY HAS DECREASED THROUGHOUT THE DAY BUT CAUTION
IS STRONGLY SUGGESTED. THE VOLCANO HAS BEEN VERY ACTIVE OVER THE
LAST COUPLE OF WEEKS AND MAY ERUPT AGAIN WITH LITTLE OR NO WARNING
AS THE GEOPHYSICAL INSTITUTE HAS INDICATED. IF THE TREND TO LESS
ACTIVITY CONTINUES THEN WE WILL DOWNGRADE TUNGURAHUA TO A WATCH-VAAS
STATUS ONLY.
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TRAJECTORY: N/A.
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REAL TIME SATELLITE IMAGERY ALONG WITH THIS AND OTHER VOLCANIC ASH
ADVISORY STATEMENTS OFTEN ACCOMPANIED BY A MAP DEPICTING ASH
LOCATION ARE AVAILABLE AT INTERNET URL ADDRESS  
http://www.ssd.noaa.gov/VAAC/washington.html
(all lower case except /VAAC/)
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OUTLOOK:  SEE SIGMETS.
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THE NEXT STATEMENT WILL BE ISSUED BY 31/0200 UTC.
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PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS.
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ORRISON
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