FVXX21 KNES 211306
VOLCANIC ASH ADVISORY
ISSUED: 20070721/1305Z VAAC: WASHINGTON
VOLCANO: TUNGURAHUA 1502-08
LOCATION: S0128 W07826 AREA: ECUADOR
SUMMIT ELEVATION: 16480 FT (5023 M)
ADVISORY NUMBER: 2007/427
INFORMATION SOURCE: GUAYAQUIL MWO. GOES-12.
GEOPHYSICAL INST.
ERUPTION DETAILS: PUFF OF ASH SEEN AROUND 21/1140Z
OBS ASH DATE/TIME: 21/1245Z
OBS ASH CLOUD: SFC/FL270 10NM WIDE LINE BETWEEN
S0132 W07844 - S0128 W07826. ASH IS MOVING W 5-10
KNOTS.
FCST ASH CLOUD +6H: 21/1900Z SFC/FL270 15NM WIDE
LINE BETWEEN S0128 W07826 - S0136 W07906.
FCST ASH CLOUD +12H: 22/0100Z SFC/FL270 15NM WIDE
LINE BETWEEN S0128 W07826 - S0136 W07907.
FCST ASH CLOUD +18H: 22/0700Z SFC/FL270 15NM WIDE
LINE BETWEEN S0128 W07826 - S0136 W07907.
REMARKS: A NEW SIGMET INDICATES A SIGNIFICANT
HEIGHT CHANGE ON THE PUFF OF ASH TO FL270. THE
PUFF IS STILL VISIBLE MOVING WSW BUT EXPANDING
LATERALLY ALONG THE PATH. ...GALLINA
NEXT ADVISORY: WILL BE ISSUED BY 20070721/1900Z
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