FVXX20 KWBC 200815
.
VOLCANIC ASH ADVISORY STATEMENT
ISSUED 0815 UTC 20 FEB 1999 BY THE WASHINGTON VAAC
.
COLIMA 99-011  MEXICO 19.51N 103.62W
.
BACKGROUND:    COLIMA MEXICO (1401-04)
               SUMMIT HEIGHT 13451 FT (4100 M)
.
SOURCES OF INFORMATION: GOES 8 INFRARED AND MULTISPECTRAL IMAGERY.
SIGMET FROM MEXICO CITY METEOROLOGICAL WATCH OFFICE.  SURFACE
OBSERVATION FROM COLIMA
.
ERUPTION DETAILS: UNKNOWN
.
DETAILS OF ASH CLOUD: NO ASH CAN BE SEEN IN SATELLITE IMAGERY
THROUGH 0745 UTC. HOWEVER MEXICO CITY METEOROLOGICAL WATCH OFFICE
SIGMETS CONTINUE TO INDICATE VOLCANIC ASH POSSIBLY UP TO FL210.  A
SURFACE OBSERVATION FROM COLIMA ALSO REPORTED A VOLCANIC ASH LAYER.
.
TRAJECTORY: NATIONAL WEATHER SERVICE NUMERICAL MODEL WINDS SUGGEST
THAT ANY ASH AT ABOUT FL210 WILL MOVE TOWARD THE SOUTH AT ABOUT 15
KNOTS.  
.
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
.
THE NEXT MESSAGE WILL BE ISSUED BY 20/1400 UTC.
.
PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS.
.
NNNN