FVXX22 KWBC 041430
CORRECTED FOR BEGINNING DATE OF ERUPTION
VOLCANIC ASH ADVISORY STATEMENT
ISSUED 1430 UTC 04 DEC 1999 BY THE WASHINGTON VAAC 
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SAN CRISTOBAL  99-013   NICARAGUA  12.7N 87.0W 
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BACKGROUND:      SAN CRISTOBAL  NICARAGUA  (1404-02)
                 SUMMIT HEIGHT 5725 FT  (1745 M)
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SOURCES OF INFORMATION: GOES-8 VISIBLE..INFRARED AND MULTISPECTRAL
IMAGERY.  0600 UTC AVIATION MODEL UPPER-AIR SOUNDING DATA.
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ERUPTION DETAILS: ASH AND STEAM VENTING BEGINNING AROUND 
03/1630 UTC.
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DETAILS OF ASH CLOUD: SATELLITE IMAGERY THROUGH 04/1415 UTC SHOWS
THE AREA AROUND THE VOLCANO OBFUSCATED IN CLOUDS THEREFORE DETECTION
OF VOLCANIC ASH IS IMPOSSIBLE.
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TRAJECTORY: ANY REMAINING ASH AT SUMMIT LEVEL 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  
www.ssd.noaa.gov/VAAC/washington.html
(all lower case except /VAAC/)
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OUTLOOK:  SEE LATEST 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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THIS WILL BE THE LAST MESSAGE FOR THIS EVENT.
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PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS.
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WALTER/SAB/NOAA/NESDIS
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NNNN