FVXX20 KWBC 281455     
.
VOLCANIC ASH ADVISORY STATEMENT
ISSUED 1455 UTC 28 MAY 1999 BY THE WASHINGTON VAAC 
.
POPOCATEPETL   99-072     MEXICO      19.02N 98.62W  
.
BACKGROUND:    POPOCATEPETL MEXICO (1401-09)
               SUMMIT HEIGHT 17930 FT (5465M)
.
SOURCES OF INFORMATION: GOES-8 MULTISPECTRAL SATELLITE IMAGERY.
CENAPRED ONLINE POPO-CAM.  1200 UTC MEXICO CITY SOUNDING ...
CENAPRED VOLCANO OBSERVATORY   
.
ERUPTION DETAILS: ERUPTION AT 28/1230 UTC.
.
DETAILS OF ASH CLOUD: A FAINT ASH CLOUD IS APPARENT ON MULTI-SPECTRAL IMAGERY.  ASH IS LOCATED AT APPROXIMATELY FL300.  THE PLUME
EXTENDS 70 KM (38 NMI) NORTH FROM THE SUMMIT AND IS APPROXIMATELY 21
KM (11 NMI) WIDE.         
. 
TRAJECTORY: MOVING TOWARDS THE NORTH AND NORTH-NORTHEAST AT 30 KTS.
.
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/messages.html
(all lower case except /VAAC/)
.
OUTLOOK: SEE SIGMETS.
.
A FOLLOW UP VAAS WITH GRAPHIC WILL BE ISSUED SHORTLY.
.
PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS.
.
NNNN
"Attached Graphic Map Depicting Ash" 

"Graphic Map Depicting Ash"