FVXX20 KWBC 130210 VOLCANIC ASH ADVISORY ISSUED: 2001NOV13/0210Z VAAC: WASHINGTON . VOLCANO: SAN CRISTOBAL 1404-02 LOCATION: 1242N 8700W AREA: NICARAGUA . SUMMIT ELEVATION: 5725 FT (1745 M) . ADVISORY NUMBER: 2001/001 . INFORMATION SOURCE: GOES-8 INFRARED AND MULTISPECTRAL IMAGERY. NICARAGUAN VOLCANO OBSERVATORY INETER. SURFACE REPORT. ERUPTION DETAILS: SMALL ASH EMISSIONS POSSIBLY ONGOING DETAILS OF ASH CLOUD: A 13/00Z SURFACE REPORT INDICATED THAT SAN CRISTOBAL IS SHOWING MODERATE ACTIVITY. THE NICARAGUAN OBSERVATORY INETER CONFIRMED THAT THERE HAVE BEEN SMALL ASH EMISSIONS TONIGHT BUT THEY BELIEVE THAT THE ASH HEIGHT IS ABOUT SUMMIT LEVEL. STARTING AT 12/2245Z GOES-8 MULTISPECTRAL IMAGERY SHOWS A SMALL AREA OF POSSIBLE ASH MOVING FROM THE VOLCANO TOWARD THE NORTHWEST BUT THIS POSSIBLE ASH IS TOO DIFFUSE TO SEE BY 0015Z. THE HEIGHT OF ANY ASH IS DIFFICULT TO DETERMINE BUT BASED ON INETER INFORMATION WE ARE ESTIMATING THAT THE HEIGHT IS BELOW FL080. . TRAJECTORY: POSSIBLE THIN ASH BELOW FL080 IS MOVING TOWARD THE WEST OR NORTHWEST AT LESS THAN 20 KNOTS. INETER OBSERVERS BELIEVE THAT SOME ASH MIGHT BE MOVING TO THE SOUTHWEST. . OUTLOOK: SEE SIGMETS. . THE NEXT MESSAGE WILL BE ISSUED BY 13/0800Z. . INTERNET URLS... MESSAGE LISTSERV WWW.SSD.NOAA.GOV/VAAC/SUBSCRIBE.HTML MESSAGES GRAPHICS AND IMAGERY WWW.SSD.NOAA.GOV/VAAC/WASHINGTON.HTML (ALL LOWERCASE EXCEPT /VAAC/) . PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS. . NNNN