FVXX22 KWBC 240430 VOLCANIC ASH ADVISORY ISSUED: 2001JAN24/0430Z VAAC: WASHINGTON . VOLCANO: POPOCATEPETL 1401-09 LOCATION: 1901N 9837W AREA: MEXICO . SUMMIT ELEVATION: 17930 FT (5465 M) . ADVISORY NUMBER: 2001/20 . INFORMATION SOURCE: GOES-8 INFRARED AND MULTISPECTRAL IMAGERY. MEXICO CITY MWO. 12 HOUR WIND FORECAST FROM THE 23/1800Z AVIATION MODEL . ERUPTION DETAILS: EXPLOSIVE ERUPTIONS AT 22/2245Z...23/0015Z AND 23/1441Z. CONTINUOUS ASH EMISSIONS BETWEEN EXPLOSIONS. . DETAILS OF ASH CLOUD: ASH IS NO LONGER VISIBLE ON THE IMAGERY THROUGH 24/0402Z. HOWEVER AN OCCASIONAL HOTSPOT CAN BE SEEN IN THE IMAGERY THROUGH 24/0402Z. . TRAJECTORY: ANY ASH AT FL25O WILL MOVE TOWARDS THE EAST AT 15 KNOTS, . OUTLOOK: SEE SIGMETS AND VAFTAD. . THE NEXT MESSAGE WILL BE ISSUED BY 24/0830Z. . REAL TIME SATELLITE IMAGERY AND VOLCANIC ASH ADVISORIES 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. . WALTER . NNNN