FVXX21 KWBC 041610
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VOLCANIC ASH ADVISORY
ISSUED 1600 UTC 04 NOVEMBER 1999 BY THE WASHINGTON VAAC 
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TUNGURAHUA 99-073      ECUADOR 1.47S 78.44W 
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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...GUAYAQUIL METEOROLOGICAL WATCH OFFICE SIGMETS...BULLETIN
AND WIND DATA FROM THE INSTITUTO GEOFISICO IN ECUADOR.
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ERUPTION DETAILS: NEW ERUPTION OF ASH AT ABOUT 04/1330 UTC
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DETAILS OF ASH: NEW ASH IS VISIBLE IN SATELLITE IMAGERY STARTING AT
04/1345 UTC. A SIGMET FROM GUAYAQUIL MWO CITES A SURFACE REPORT OF
ASH IN ALL DIRECTIONS.  UPPER LEVEL SOUNDING DATA WOULD PLACE AT ASH
AT FL300.  AS OF 1515 UTC THE ASH EXTENDS 40 NMI SOUTH OF THE
SUMMIT. THE AREA OF ASH IS APPROXIMATELY 25 NMI WIDE AT THE WIDEST
POINT.
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TRAJECTORY: UPPER AIR WIND DATA SUGGESTS THAT ASH AT ABOUT FL300
WILL MOVE TO THE SOUTH AT 10 KT.

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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OUTLOOK:  SEE SIGMETS AND VAFTAD.
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THE NEXT STATEMENT WILL BE ISSUED BY 04/2200 UTC.
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PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS.
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"Attached Graphic Map Depicting Ash" 

"Graphic Map Depicting Ash"