FVXX20 KNES 231318
VOLCANIC ASH ADVISORY
ISSUED: 20070923/1315Z   VAAC: WASHINGTON

VOLCANO: TUNGURAHUA 1502-08
LOCATION: S01170 W07826   AREA: ECUADOR

SUMMIT ELEVATION: 16480 FT (5023 M)

ADVISORY NUMBER: 2007/587

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

ERUPTION DETAILS: ONGOING ASH AND STEAM EMISSIONS

OBS ASH DATE/TIME: 23/1215Z

OBS ASH CLOUD: SFC/FL250 S0117 W07846 - S0127
W07826 - S0129 W07831 - S0126 W07901 - S0118
W07902 - S0117 W07846 MOVING W 10 KNOTS. 

FCST ASH CLOUD +6H: 23/1830Z SFC/FL250 10NM WIDE
LINE BETWEEN S0116 W07902 - S0128 W07826. 

FCST ASH CLOUD +12H: 24/0030Z SFC/FL250 10NM WIDE
LINE BETWEEN S0114 W07902 - S0128 W07826. 

FCST ASH CLOUD +18H: 24/0630Z SFC/FL250 10NM WIDE
LINE BETWEEN S0112 W07901 - S0117 W07856 - S0128
W07826. 

REMARKS: VISIBLE SATELLITE IMAGERY SHOWS AN ASH
PLUME EXTENDING FROM THE VOLCANO TOWARD THE WEST.
A 1240Z PIREP CITED IN A SIGMET DESCRIBES
WESTWARD MOVING ASH TO FL250.  ASH HEIGHT
DETERMINED IN THIS VAA BY THE PIREP...MODEL WINDS
SUGGEST A SLIGHTLY LOWER HEIGHT.

NEXT ADVISORY: WILL BE ISSUED BY 20070923/1915Z

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