FVXX22 KWBC 230200 VOLCANIC ASH ADVISORY STATEMENT ISSUED 0200 UTC 23 FEB 2000 BY THE WASHINGTON VAAC . SAN CRISTOBAL 00-039 NICARAGUA 1242N 8700W . BACKGROUND: SAN CRISTOBAL NICARAGUA (1404-02) SUMMIT HEIGHT 5725 FT (1745M) . SOURCES OF INFORMATION: GOES-8 VISIBLE AND MULTISPECTRAL IMAGERY. AVIATION MODEL WINDS VALID 22/1800 UTC. SURFACE METAR FROM CHINANDEGA NICARAGUA. . ERUPTION DETAILS: CONTINUOUS LOW LEVEL ASH AND GAS EMISSION. . DETAILS OF ASH CLOUD: UNABLE TO DETECT ANY EMISSIONS IN THE LATEST GOES-8 INFRARED IMAGERY AT 0115 UTC. THE LAST VISIBLE IMAGE OF THE DAY AT 2315 UTC CONTINUED TO SHOW A PLUME OF DIFFUSE ASH EXTENDING TOWARD THE SOUTHWEST. THE PLUME 24KM (13NMI) WIDE WAS ESTIMATED BELOW FL070. NICARAGUA SURFACE STATION AT CHINANDEGA CONTINUES TO REPORT VOLCANIC ASH THROUGH 2100 UTC. . TRAJECTORY: UPPER AIR PATTERNS SUGGEST ANY ASH AT OR BELOW FL100 WOULD MOVE SOUTHWEST AT 10 TO 15 KNOTS. . OUTLOOK: SEE SIGMETS. . THE NEXT STATEMENT WILL BE ISSUED BY 23/0800 UTC. . 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/) . PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS. . BROWN-NOAA/NESDIS/SAB . NNNN