FVXX20 KWBC 211923
VOLCANIC ASH ADVISORY
ISSUED: 2004APR21/1923Z   VAAC: WASHINGTON

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

SUMMIT ELEVATION: 16480 FT (5023 M)

ADVISORY NUMBER: 2004/164

INFORMATION SOURCE: GUAYAQUIL MWO. GOES-12
IMAGERY. GFS MODEL WINDS FORECAST. GEOPHYSICAL
INSTITUTE. 

ERUPTION DETAILS: LIGHT ASH VENTING	

OBS ASH DATE/TIME: 21/1845Z

OBS ASH CLOUD: SFC/FL220 S0122W07834 - S0128W07826
- S0130W07833 - S0128W07832 - S0122W07834 MOVING
NW 10-15 KNOTS. 

FCST ASH CLOUD +6H: NOT AVBL

FCST ASH CLOUD +12H: NOT AVBL

FCST ASH CLOUD +18H: NOT AVBL

REMARKS: WEATHER CLOUDS ARE CLEARING TO SHOW A
VERY LIGHT HAZE NEAR THE SUMMIT OF THE
VOLCANO...WHICH IS ASSUMED TO BE ASH.  LATEST
GUAYAQUIL SIGMET INDICATED SOME SWWARD DRIFT OF
THE ASH BUT IT REMAINS NEAR SUMMIT AS SEEN IN
VISIBLE IMAGERY. THERE IS ALSO A SMALL AREA OF ASH
STILL MOVING NW AT THIS TIME. ...GALLINA

NEXT ADVISORY: WILL BE ISSUED BY 2004APR22/0130Z

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Attached Graphic Depicting Ash Only


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