FVXX21 KWBC 231900
VOLCANIC ASH ADVISORY STATEMENT
ISSUED 1900 UTC 23 FEB 2000 BY THE WASHINGTON VAAC 
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TUNGURAHUA 00-230         ECUADOR 0128S 7826W 
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BACKGROUND:    TUNGURAHUA ECUADOR (1502-08)
               SUMMIT HEIGHT 16480 FT (5023 M)
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SOURCES OF INFORMATION: GOES-8 VISIBLE...INFRARED AND MULTISPECTRAL
IMAGERY. GEOPHYSICAL INSTITUTE.
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ERUPTION DETAILS: OCCASIONAL EMISSIONS OF ASH AND STEAM.
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DETAILS OF ASH: THE PLUME SEEN EARLIER FROM THE VOLCANO IS NO LONGER
EVIDENT THROUGH 1815 UTC.  THERE ARE HOWEVER SOME CLOUDS OVER THE
AREA OCCASIONALLY OBSCURING THE VIEW. THE INSTITUTE REPORTS THAT
ACTIVITY IS NOT AS ACTIVE AS A WEEK AGO HOWEVER THERE ARE SILL
OCCASIONAL EMISSIONS OF ASH IN THE MORE FREQUENT STEAM AND GAS
PLUME. THE WIND OBSERVATIONS AND MODEL FORECAST WINDS INDICATE A
CHAOTIC WIND PATTERN AND ACCURATE HEIGHT ESTIMATION AND MOTION WILL
BE DIFFICULT HOWEVER MOST ACTIVE IS BELIEVED TO BE BELOW FL200. 
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TRAJECTORY: NORTHWEST TO SOUTHWEST AROUND 10 TO 15 KNOTS. 
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OUTLOOK: SEE SIGMETS.
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THE NEXT STATEMENT WILL BE ISSUED BY 24/0100 UTC UNLESS NEW
INFORMATION IS RECEIVED. 
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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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PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS.
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