FVXX21 KWBC 041330
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VOLCANIC ASH ADVISORY STATEMENT
ISSUED 1330 UTC 04 DEC 1999 BY THE WASHINGTON VAAC
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TUNGURAHUA 99-203 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..MULTISPECTRAL AND INFRARED
IMAGERY. AVIATION MODEL WIND FORECAST. REPORT FROM THE GEOPHYSICAL
INSTITUTE.
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ERUPTION DETAILS: LAST VISIBLE ASH PLUME 01 DECEMBER 1245 UTC.
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DETAILS OF ASH: THE LATEST SATELLITE IMAGERY THROUGH 04/1315 UTC
SHOWS THE AREA AROUND THE VOLCANO SHROUDED IN CLOUDS THUS MAKING
DETECTION OF ASH IMPOSSIBLE.
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TRAJECTORY: N/A
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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 04/1930 UTC.
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PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS.
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WALTER/SAB/NOAA/NESDIS
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NNNN