FVXX21 KWBC 010700
VOLCANIC ASH ADVISORY STATEMENT 
ISSUED 0700 UTC 01 APR 2000 BY THE WASHINGTON VAAC 
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TUNGURAHUA 00-385         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 THROUGH 0345 UTC. GOES-8 WAS IN ECLIPSE FROM 0409 UTC
THROUGH 0630 UTC. UPPER WIND FORECAST FROM THE AVIATION MODEL.
MARCH 31 GEOPHYSICAL INSTITUTE REPORT.
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ERUPTION DETAILS: GAS AND ASH EMISSIONS
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DETAILS OF ASH: NO ASH CAN BE SEEN IN SATELLITE IMAGERY
THROUGH 0345 UTC BECAUSE WEATHER CLOUDS ARE HINDERING ASH
DETECTION.  
  THE GEOPHYSICAL INSTITUTE REPORT SUGGESTS THAT ON MARCH 31
EMISSIONS PRODUCED WESTWARD MOVING ASH AT ABOUT FL230.
SATELLITE IMAGERY FROM 31/1815 SHOWED ASH TO ABOUT FL300.
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TRAJECTORY: ACCORDING TO UPPER AIR FORECASTS ANY ASH BETWEEN
THE SUMMIT AND FL300 WILL MOVE TO THE WEST AT 5 TO 15 KNOTS. 
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OUTLOOK: SEE SIGMETS AND VAFTAD.
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THE NEXT STATEMENT WILL BE ISSUED BY 01/1300 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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