FVXX20 KNES 170308
VOLCANIC ASH ADVISORY
ISSUED: 20070417/0302Z   VAAC: WASHINGTON

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

SUMMIT ELEVATION: 16480 FT (5023 M)

ADVISORY NUMBER: 2007/222

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

ERUPTION DETAILS: SEVERAL ASH OBSERVATIONS

OBS ASH DATE/TIME: 17/0215Z

OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM
SATELLITE DATA. WINDS FL100/140 MOVING TO W
5-15 KNOTS. FL160/260 MOVING TO W 20-30 KNOTS.

FCST ASH CLOUD +6H: 17/0830Z 

FCST ASH CLOUD +12H: 17/1430Z 

FCST ASH CLOUD +18H: 17/2030Z 

REMARKS: THE GEOPHYSICAL INSTITUTE OBSERVED
WESTWARD MOVING ASH AT 16/2156Z AND AGAIN AT
16/2340Z.  AT 16/2219Z A PILOT REPORTED ASH
MOVING WESTWARD AT 23 KNOTS.  THE REPORTS PUT THE
ASH AT OR BELOW FL260.  A POSSIBLE AREA OF ASH
MOVING WESTWARD AT 29 KNOTS COULD BE SEEN IN 
MULTISPECTRAL IMAGERY STARTING AROUND 16/2130Z 
BUT IT HAS NOW BECOME TOO FAINT TO SEE IN IMAGERY.
CURRENT IMAGERY DOES NOT SHOW EITHER HOTSPOTS OR 
ASH BUT ASH DETECTION MIGHT BE HINDERED BY THE 
LOW WEATHER CLOUDS IN THE AREA.   

NEXT ADVISORY: WILL BE ISSUED BY 20070417/0900Z