FVXX21 KWBC 262300
VOLCANIC ASH ADVISORY STATEMENT 
ISSUED 2300 UTC 26 MAY 2000 BY THE WASHINGTON VAAC 
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TUNGURAHUA 00-617         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...GUAYAQUIL METEOROLOGICAL WATCH OFFICE
SIGMETS..SURFACE OBSERVATION FROM RIOBAMBA UPPER AIR WIND
FORECAST FROM THE AVIATION MODEL.
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ERUPTION DETAILS: OCCASIONAL GAS AND ASH EMISSIONS.   
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DETAILS OF ASH: NO ASH CAN BE DETECTED IN SATELLITE IMAGERY
THROUGH 26/2215 UTC ALTHOUGH THERE ARE EXTENSIVE CLOUDS IN THE
AREA.  OBSERVATION AT 26/2000 UTC FROM RIOBAMBA INDICATES
VOLCANIC ASH OVER VOLCANO MOVING WEST.
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TRAJECTORY: UPPER AIR WIND PATTERNS SUGGEST THAT ANY ASH
BETWEEN THE SUMMIT AND FL250 WOULD MOVE TO THE WEST AT 20 TO
25 KNOTS.
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OUTLOOK: SEE SIGMETS.
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THE NEXT STATEMENT WILL BE ISSUED BY 27/0500 UTC.
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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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