FVXX20 KNES 211630
VOLCANIC ASH ADVISORY
ISSUED: 20060821/1630Z   VAAC: WASHINGTON

VOLCANO: TUNGURAHUA 1502-08
LOCATION: S0128 W07826   AREA: ECUADOR

SUMMIT ELEVATION: 16480 FT (5023 M)

ADVISORY NUMBER: 2006/565

INFORMATION SOURCE: GOES-12. GFS WINDS. 

ERUPTION DETAILS: ONGOING ASH EMISSION

OBS ASH DATE/TIME: 21/1545Z

OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM
SATELLITE DATA. WINDS FL100/FL200 MOVING TO W
20-25 KNOTS.

FCST ASH CLOUD +6H: 21/2200Z WINDS FL100/FL200
MOVING TO W 20 KNOTS.

FCST ASH CLOUD +12H: 22/0400Z WINDS FL100/FL200
MOVING TO W 25 KNOTS.

FCST ASH CLOUD +18H: 22/1000Z WINDS FL100/FL200
MOVING TO W 25-30 KNOTS.

REMARKS: ASH CANNOT BE DISCERNED ON VISIBLE
IMAGERY DUE TO LOW LEVEL WEATHER CLOUDS IN THE
AREA.  HOWEVER A SMALL PATCH OF ASH MAY BEEN
LOCATED NEAR 1.5S 79.5W  BUT IS VERY THIN AND
DOES NOT HAVE A VERY STRONG ASH SIGNAL ASSOCIATED
WITH  IT AND MAY ACTUALLY BE STEAM OR WEATHER
CLOUD.  STILL WINDS ARE VERY FAST WITH ESTIMATES
OF 20-30 KNTS FROM SATELLITE DERIVED WINDS.  THIS
CORRELATES WELL WITH GFS MODEL. ASH WOULD BE
TRANSPORTED WEST THROUGHOUT THE FORECAST PERIOD.
...GALLINA

NEXT ADVISORY: WILL BE ISSUED BY 20060821/2230Z

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