FVXX21 KWBC 270500
VOLCANIC ASH ADVISORY STATEMENT 
ISSUED 0500 UTC 27 MAY 2000 BY THE WASHINGTON VAAC 
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TUNGURAHUA 00-618         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 INFRARED AND MULTISPECTRAL
IMAGERY...GUAYAQUIL METEOROLOGICAL WATCH OFFICE SIGMETS..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: EXTENSIVE LOW AND MID LEVEL CLOUDS MAKE IT
DIFFICULT TO DETECT ANY ASH OR STEAM IN THE AREA AROUND THE
VOLCANO. THE LATEST OBSERVATION AT 26/2000 UTC FROM RIOBAMBA
INDICATES VOLCANIC ASH OVER THE 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 15 TO
20 KNOTS.
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OUTLOOK: SEE SIGMETS.
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THE NEXT STATEMENT WILL BE ISSUED BY 27/1100 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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KARST
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