FVXX20 KWBC 250430
VOLCANIC ASH ADVISORY
ISSUED: 2002MAR25/0430Z  VAAC: WASHINGTON
.
VOLCANO: TUNGURAHUA  1502-08
LOCATION: 0128S07826W    AREA: ECUADOR
.
SUMMIT ELEVATION: 16480 FT (5023 M).
.
ADVISORY NUMBER: 2002/178
.
INFORMATION SOURCE: GOES-8 IMAGERY. AVN MODEL WINDS FORECAST.
SURFACE OBSERVATION.
.               
ERUPTION DETAILS: NEARLY CONTINUOUS EMISSION OF GASES AND LIGHT
ASH SINCE 20/2200Z.
.
OBS ASH DATE/TIME: 24/2200Z.
.
OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS
FL100/FL270 MOVING W AROUND 10 KNOTS.
.
FCST ASH CLOUD+6H: SEE SIGMETS.
.
REMARKS: A 24/2200Z SURFACE OBSERVATION FROM SELT INDICATED A ASH
CLOUD OVER THE VOLCANO WITH NO HEIGHT. A PREVIOUS GEOPHYSICAL
INSTITUTE REPORT HAD ASH TO FL270 OVER THE VOLCANO. EXTENSIVE
CLOUD COVER MAKES DETECTION OF ASH DIFFICULT IN SATELLITE IMAGERY
THROUGH 25/0345Z. 
.
NEXT ADVISORY: WILL BE ISSUED BY 2002MAR25/1030Z.
.
NNNN