FVXX20 KWBC 201704                      
VOLCANIC ASH ADVISORY 
ISSUED: 2003SEP20/1700Z VAAC: WASHINGTON
 
VOLCANO: TUNGURAHUA  1502-08
LOCATION: S0128W07826    AREA: ECUADOR
 
SUMMIT ELEVATION: 16480 FT (5023 M)

ADVISORY NUMBER: 2003/264

INFORMATION SOURCE: GOES-12 IMAGERY. GFS MODEL WINDS
FORECAST. GUAYAQUIL MWO SIGMET.

ERUPTION DETAILS: EMISSION AT 19/1004Z
                                            
OBS ASH DATE/TIME: 20/1615Z

OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA.
WINDS FL100/230 MOVING W 10-15 KNOTS.

FCST ASH CLOUD+6H: SEE SIGMETS.

REMARKS: ASH IS NOT VISIBLE IN SATELLITE IMAGERY THROUGH
20/2015Z. RECENT AIRCRAFT REPORTS INDICATE THAT ASH IS
MOVING SW AND IS ESTIMATED TO FL165/230. LATEST SATELLITE
IMAGERY AND GFS MODEL WINDS INDICATE THAT ASH SHOULD BE
MOVING WEST TO NORTHWEST. WEATHER CLOUDS IN THE VICINITY OF
THE VOLCANO IS MAKING IT VERY DIFFICULT TO DETECT ASH
HEIGHTS AND MOVEMENT.  WE WILL CONTINUE TO MONITOR THE
VOLCANO CLOSELY AND ADVISE AS NEEDED....KIBLER 

NEXT ADVISORY: WILL BE ISSUED BY 2003SEP20/2300Z.
 
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