FVXX22 KWBC 231530 VOLCANIC ASH ADVISORY STATEMENT ISSUED 1530 UTC 23 NOV 1999 BY THE WASHINGTON VAAC . SAN CRISTOBAL 99-004 NICARAGUA 12.7N 87.0W . BACKGROUND: SAN CRISTOBAL NICARAGUA (1404-02) SUMMIT HEIGHT 5725 FT (1745 M) . SOURCES OF INFORMATION: GOES-8 INFRARED..VISIBLE..AND MULTISPECTRAL IMAGERY. INETER VOLCANOLOGISTS ON SITE. 1200 UTC ETA MODEL DATA. . ERUPTION DETAILS: INETER VOLCANOLOGISTS REPORT THE SAN CRISTOBAL VOLCANO IS EMITTING ASH AT LOW LEVELS NEAR THE SUMMIT. . DETAILS OF ASH CLOUD: THE ASH IS REPORTED TO BE FALLING WITHIN 15 KM (8 NMI) OF THE VOLCANO. VISIBLE SATELLITE IMAGERY THROUGH 23/1515 UTC IS INCONCLUSIVE ON THE PRESENCE OF ASH IN THE VICINITY OF THE VOLCANO. . TRAJECTORY: ANY LOW LEVEL ASH NEAR THE SUMMIT WOULD MOVE TOWARD THE WEST AT LESS THAN 10 KTS. . 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/) . OUTLOOK: SEE LATEST SIGMETS. . THE NEXT MESSAGE WILL BE ISSUED BY 23/2130 UTC. . PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS. . RUMINSKI/SIMKO . NNNN