FVXX21 KWBC 040730
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VOLCANIC ASH ADVISORY STATEMENT
ISSUED 0730 UTC 04 DEC 1999 BY THE WASHINGTON VAAC 
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TUNGURAHUA 99-202         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 MULTISPECTRAL AND INFRARED IMAGERY. 
AVIATION MODEL WIND FORECAST.
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ERUPTION DETAILS: LAST VISIBLE ASH PLUME 01 DECEMBER 1245 UTC.
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DETAILS OF ASH: THICK METEOROLOGICAL CLOUDS COVER THE AREA OF THE
VOLCANO MAKING ANY DETECTION OF ASH VERY DIFFICULT.  NO ASH CAN BE
SEEN THROUGH 04/0645 UTC.
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TRAJECTORY: ANY ASH AT FL300 WOULD MOVE TOWARD THE SOUTHWEST AT
10KT.
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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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OUTLOOK:  SEE SIGMETS.
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EFFECTIVE JANUARY 3 2000 AT 0000 UTC... ALL REFERENCES TO LATITUDE
AND LONGITUDE IN VOLCANIC ASH ADVISORY STATEMENTS WILL BE IN DEGREES
AND MINUTES OF A DEGREE.  EXAMPLE: 16.70N 62.20W  WILL BE 1642N6212W
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THE NEXT STATEMENT WILL BE ISSUED BY 04/1330 UTC.
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PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS.
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