FVXX21 KWBC 101100 VOLCANIC ASH ADVISORY ISSUED: 2001AUG10/1100Z VAAC: WASHINGTON . VOLCANO: POPOCATEPETL 1401-09 LOCATION: 1901N 9837W AREA: MEXICO . SUMMIT ELEVATION: 17930 FT (5465 M) . ADVISORY NUMBER: 2001/90 . INFORMATION SOURCE: MEXICO CITY METEOROLOGICAL WATCH OFFICE. GOES-8 MULTISPECTRAL AND INFRARED SATELLITE IMAGERY. 12 HOUR WIND FORECAST FROM THE 10/0000Z AVIATION MODEL. . ERUPTION DETAILS: REPORTED ASH RELEASE AT 10/0400Z. . DETAILS OF ASH CLOUD: ASH IS NOT SEEN IN THE IMAGERY THROUGH 10/0945Z HOWEVER AN OCCASIONAL HOTSPOT IS SEEN IN THE SHORTWAVE IMAGERY. . TRAJECTORY: ANY ASH AT FL250 WILL MOVE TOWARDS THE SOUTHWEST AT 10 KNOTS. . OUTLOOK: SEE SIGMETS. . THIS WILL BE THE LAST MESSAGE FOR THIS EVENT. . 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