FVXX20 KWBC 110900
VOLCANIC ASH ADVISORY
ISSUED: 2001DEC11/0900Z   VAAC: WASHINGTON
.
VOLCANO: POPOCATEPETL 1401-09
LOCATION: 1901N 9837W    AREA: MEXICO
.
SUMMIT ELEVATION: 17930 FT (5465 M) 
.
ADVISORY NUMBER: 2001/105
.
INFORMATION SOURCE: SIGMET FROM THE MEXICO CITY METEOROLOGICAL
WATCH OFFICE.  GOES-8 INFRARED AND MULTISPECTRAL IMAGERY.  SIX
HOUR WIND FORECAST FROM THE 11/00Z AVIATION MODEL.
.
ERUPTION DETAILS: ASH OBSERVED OVER THE VOLCANO AT 11/0158Z.
.
DETAILS OF ASH CLOUD: ASH IS NOT SEEN IN THE SATELLITE IMAGERY
THROUGH 11/0832Z.  HOWEVER A VERY BRIGHT HOTSPOT CONTINUES TO BE
OBSERVED IN THE SHORTWAVE IMAGERY. 
.
TRAJECTORY: ANY REMAINING ASH FROM THE SUMMIT TO FL210 WILL MOVE
TO THE NORTHEAST AT 20 TO 30 KNOTS. 
.
OUTLOOK:  SEE SIGMETS.
.
NEXT ADVISORY: WILL BE ISSUED BY 2001DEC11/1500Z
.
WALTER
.
NNNN