FVXX21 KWBC 220100
VOLCANIC ASH ADVISORY STATEMENT COR
ISSUED 0100 UTC 22 APR 2000 BY THE WASHINGTON VAAC 
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CORRECTION SENT FOR EVENT NUMBER
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TUNGURAHUA 00-471         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. 22/0000 UTC FORECAST UPPER WINDS FROM THE 21/1800 UTC
AVN MODEL.
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ERUPTION DETAILS: OCCASIONAL ASH EMISSIONS.
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DETAILS OF ASH: GOES-8 IMAGERY THROUGH 22/0145 UTC DOES NOT
SHOW ANY ASH NEAR THE SUMMIT. HOWEVER AN OCCASIONAL HOT SPOT
CAN BE SEEN IN THE SHORTWAVE INFRARED AND REFLECTIVITY
CHANNELS INDICATING A POSSIBLE INCREASE IN ACTIVITY IN
TUNGURAHUA.
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TRAJECTORY: UPPER AIR PATTERNS SUGGEST ANY ASH UP TO FL250
WOULD MOVE WEST AT 10 TO 15 KNOTS. ANY ASH ABOVE FL250 WOULD
MOVE SOUTHWEST AT 15 TO 20 KNOTS.
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THE NEXT STATEMENT WILL BE ISSUED BY 22/0700 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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HUGHES
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