FVXX21 KWBC 251300
VOLCANIC ASH ADVISORY STATEMENT
ISSUED 1300 UTC 25 FEB 2000 BY THE WASHINGTON VAAC 
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TUNGURAHUA 00-237        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 MULTISPECTRAL AND VISIBLE
IMAGERY...GEOPHYSICAL INSTITUTE...0600 UTC AVIATION MODEL UPPER AIR
SOUNDING DATA.
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ERUPTION DETAILS: FREQUENT EMISSIONS OF ASH AND STEAM.
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DETAILS OF ASH: SATELLITE IMAGERY THROUGH 25/1215 UTC DOES NOT SHOW
ANY ASH SIGNATURES ALTHOUGH THERE IS EXTENSIVE CLOUDINESS IN THE
AREA. THE GEOPHYSICAL INSTITUTE REPORTED SEVERAL EXPLOSIONS OF GAS
AND ASH OVERNIGHT WITH A ROUGH ESTIMATE OF FL280.

TRAJECTORY: ANY ASH FROM THE SUMMIT TO FL280 IS FORECASTED TO MOVE
TO THE WEST AT 10 TO 15 KNOTS.

OUTLOOK: SEE SIGMETS.
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THE NEXT STATEMENT WILL BE ISSUED BY 25/1900 UTC.

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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SCHWARTZ
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