FVXX21 KWBC 011300
VOLCANIC ASH ADVISORY STATEMENT 
ISSUED 1300 UTC 01 APR 2000 BY THE WASHINGTON VAAC 
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TUNGURAHUA 00-386         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 THROUGH 1215 UTC.  6 HOUR UPPER WIND
FORECAST FROM THE 0600 UTC AVIATION MODEL.  MARCH 31
GEOPHYSICAL INSTITUTE REPORT.
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ERUPTION DETAILS: GAS AND ASH EMISSIONS
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DETAILS OF ASH: THE FIRST VISIBLE IMAGES OF THE DAY INDICATE
DENSE CLOUDS OBSCURING THE VIEW OF THE AREA SURROUNDING THE
SUMMIT.  HENCE NO ASH CAN BE DETECTED FROM SATELLITE AT THIS
TIME.
  THE GEOPHYSICAL INSTITUTE REPORTED ON MARCH 31 THAT
EMISSIONS PRODUCED WESTWARD MOVING ASH AT ABOUT FL230.  ASH
WAS LAST DETECTED IN 31/1815 SATELLITE IMAGERY TO ABOUT FL300.
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TRAJECTORY: ACCORDING TO UPPER AIR FORECASTS ANY ASH THAT MAY
EXIST BETWEEN THE SUMMIT AND FL300 WILL MOVE TO THE WEST AT 10
TO 15 KNOTS. 
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OUTLOOK: SEE SIGMETS AND VAFTAD.
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THE NEXT STATEMENT WILL BE ISSUED BY 01/1900 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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CLARK
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