FVXX20 KWBC 291850       
VOLCANIC ASH ADVISORY
ISSUED: 2004APR29/1900Z   VAAC: WASHINGTON

VOLCANO: TUNGURAHUA 1502-08
LOCATION: S0128W07826   AREA: ECUADOR

SUMMIT ELEVATION: 16480 FT (5023 M)

ADVISORY NUMBER: 2004/181

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

ERUPTION DETAILS: AIRCRAFT OBSERVATION AT 29/1700Z

OBS ASH DATE/TIME: 29/1815Z

OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE
DATA.  WINDS FL100/250 MOVING TO SW 5-10 KNOTS.

FCST ASH CLOUD +6H: NOT AVBL

FCST ASH CLOUD +12H: NOT AVBL

FCST ASH CLOUD +18H: NOT AVBL

REMARKS: AN AIRCRAFT REPORT AT 29/1700Z INDICATES THAT TUNGURAHUA
ERUPTED TO FL250 WITH ASH MOVING TOWARDS THE SOUTHWEST.  CURRENT
SATELLITE IMAGERY THROUGH 29/1815Z SHOWS CONSIDERABLE CLOUDS OVER
THE AREA MAKING DETECTION OF ASH DIFFICULT....WALTER/KARST

NEXT ADVISORY: WILL BE ISSUED BY 2004APR30/0100Z
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