FVXX23 KWBC 212310 VOLCANIC ASH ADVISORY STATEMENT ISSUED 2310 UTC 21 FEB 2000 BY THE WASHINGTON VAAC . SAN CRISTOBAL 00-034 NICARAGUA 1242N 8700W . BACKGROUND: SAN CRISTOBAL NICARAGUA (1404-02) SUMMIT HEIGHT 5725 FT (1745 M) . SOURCES OF INFORMATION: GOES-8 VISIBLE INFRARED AND MULTISPECTRAL IMAGERY. CHINANDEGA SURFACE OBSERVATION 12 HOUR WIND FORECAST FROM THE AVIATION MODEL. . ERUPTION DETAILS: EMISSION OF ASH AND GASES BEGINNING TIME UNKNOWN. . DETAILS OF ASH CLOUD: THE TIME DELAYED 2200 UTC CHINANDEGA SURFACE OBSERVATION REPORTED RESTRICTION TO VISIBILITY DUE TO VOLCANIC ASH. SATELLITE IMAGERY IS INCONCLUSIVE WITH SOME HAZINESS TO THE SOUTHWEST OF THE VOLCANO WHICH MIGHT BE DUE TO VOLCANIC ASH. THE ASH IS ASSUMED TO BE BELOW FL060. TRAJECTORY: SOUTHWEST AT 20KTS.. . OUTLOOK: SEE SIGMETS. . THE NEXT STATEMENT WILL BE ISSUED BY 22/0530 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. . SCHWARTZ . NNNN