FVXX21 KWBC 250730
VOLCANIC ASH ADVISORY STATEMENT
ISSUED 0730 UTC 25 JAN 2000 BY THE WASHINGTON VAAC 
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TUNGURAHUA 00-099         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 SIGMET...JANUARY 24
REPORT FROM THE GEOPHYSICAL INSTITUTE...00 UTC AVIATION MODEL WIND
FORECAST
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ERUPTION DETAILS: OCCASIONAL EMISSIONS OF ASH AND STEAM.
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DETAILS OF ASH: NO ASH CAN BE SEEN IN SATELLITE IMAGERY THROUGH
25/0645 UTC POSSIBLY BECAUSE OF THE LOW AND MID LEVEL WEATHER CLOUDS
IN THE AREA.  IN A REPORT ISSUED ON THE AFTERNOON OF JANUARY 24 THE
GEOPHYSICAL INSTITUTE NOTED THE PRESENCE OF A COLUMN OF MOSTLY STEAM
WITH SOME ASH.  THE STEAM AND ASH WERE UP TO FL200 AND MOVED TOWARDS
THE WEST AND SOUTHWEST.
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TRAJECTORY: UPPER AIR PATTERNS SUGGEST THAT ASH AT ABOUT FL200 WOULD
MOVE AT ABOUT 10 KNOTS TOWARDS THE SOUTH.  SLIGHTLY HIGHER ASH WOULD
MOVE TOWARDS THE SOUTHWEST OR WEST. 
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OUTLOOK:  SEE SIGMETS.
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THE NEXT STATEMENT WILL BE ISSUED BY 25/1330 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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