FVXX21 KWBC 031700
.
VOLCANIC ASH ADVISORY STATEMENT
ISSUED 1700 UTC 03 SEPTEMBER 1999 BY THE WASHINGTON VAAC 
.
POPOCATEPETL 99-096 MEXICO 19.02N 98.62W 
.
BACKGROUND:    POPOCATEPETL MEXICO (1401-09)
               SUMMIT HEIGHT 17930 FT (5465 M)
.
SOURCES OF INFORMATION: MEXICO CITY MWO...GOES-8 VISIBLE..INFRARED
AND MULTISPECTRAL IMAGERY..AND CENAPRED VOLCANO CAM.
.
ERUPTION DETAILS: ERUPTION AT 03/1605 UTC.
.
DETAILS OF ASH CLOUD: METEOROLOGICAL WATCH OFFICE FROM MEXICO CITY
REPORTS THAT THE VOLCANO ERUPTED AT 03/1605 UTC TO FL350.
MULTISPECTRAL IMAGERY AT 03/1632 UTC SHOWS A SMALL PUFF OF ASH
APPROXIMATELY 20 KM TO THE WEST-SOUTHWEST OF THE SUMMIT.  THE
CENAPRED VOLCANO CAM SHOWS THE AREA CURRENTLY SHROUDED IN CLOUDS. 
THE CURRENT UPPER AIR SOUNDING FROM MEXICO CITY IS MISSING HOWEVER
ANIMATED GOES-8 SATELLITE IMAGERY SHOWS THE ASH MOVING TOWARD THE
WEST-SOUTHWEST AT 20 KTS. 
. 
TRAJECTORY: WEST-SOUTHWEST 20 KTS.
.
REAL TIME SATELLITE IMAGERY ALONG WITH 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/washington.html
(all lower case except /VAAC/)
.
OUTLOOK:  SEE LATEST SIGMETS AND VAFTAD.
.
NEXT MESSAGE WILL BE ISSUED AT 03/2300 UTC.   
.
PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS.
.
NNNN