FVXX22 KWBC 072052
VOLCANIC ASH ADVISORY STATEMENT
ISSUED 2052 UTC 07 DEC 1999 BY THE WASHINGTON VAAC 
.
POPOCATEPETL 99-109  MEXICO 19.02N 98.62W 
.
BACKGROUND:    POPOCATEPETL MEXICO (1401-09)
               SUMMIT HEIGHT 17930 FT (5465 M)
.
SOURCES OF INFORMATION: GOES-8 VISIBLE..INFRARED AND MULTISPECTRAL
IMAGERY. POPO CAM. 1200 UTC MEXICO CITY UPPER AIR SOUNDING.
.
ERUPTION DETAILS: PUFF OF ASH AND STEAM 07/1355 UTC.
.
DETAILS OF ASH CLOUD: SATELLITE IMAGERY THROUGH 2015 UTC CURRENTLY
SHOWS NO ASH VISIBLE. MULTISPECTRAL IMAGERY DOES INDICATE A POSSIBLE
HOT SPOT ASSOCIATED WITH THE VOLCANO.   BOTH POPO CAM AND SATELLITE
IMAGERY SHOW SCATTERED CUMULUS CLOUDS SURROUNDING THE SUMMIT.
.
TRAJECTORY: ASH BETWEEN FL200 AND FL220 WOULD MOVE EAST NORTHEAST AT
10 TO 15 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.
.
EFFECTIVE JANUARY 3 2000 AT 0000 UTC... ALL REFERENCES TO LATITUDE
AND LONGITUDE IN VOLCANIC ASH ADVISORY STATEMENTS WILL BE IN DEGREES
AND MINUTES OF A DEGREE. EXAMPLE: 16.70N 62.20W  WILL BE  1642N6212W
.
THE NEXT STATEMENT WILL BE ISSUED AROUND 08/0300 UTC.
.
PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS.
.
NNNN