FVXX20 KNES 241208
VOLCANIC ASH ADVISORY
ISSUED: 20070524/1208Z   VAAC: WASHINGTON

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

SUMMIT ELEVATION: 16480 FT (5023 M)

ADVISORY NUMBER: 2007/342

INFORMATION SOURCE: GOES-12. GFS WINDS.
GEOPHYSICAL INST. PILOT REPORT. SEISMIC
HELICORDER.

ERUPTION DETAILS: LATEST ASH OBSERVED AT 23/2106.

OBS ASH DATE/TIME: 24/1115Z

OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM
SATELLITE DATA. WINDS FL100/FL190 MOVING TO SW
5-10 KNOTS. FL190/FL250 MOVING TO SE 0-5 KNOTS.
FL250/FL380 MOVING TO SW 5-15 KNOTS.

FCST ASH CLOUD +6H: 24/1730Z 

FCST ASH CLOUD +12H: 24/2330Z 

FCST ASH CLOUD +18H: 25/0530Z 

REMARKS: ASH COULD NOT BE DETECTED ON SATELLITE
IMAGERY. WINDS WOULD TRANSPORT ASH MAINLY TOWARD
THE SW THROUGHOUT THE SUMMIT TO FL400 EXCEPT FOR
A VERY NARROW LAYER BETWEEN FL190 TO FL250 THAT
ARE LIGHT AND VARIBLE WITH A PRODOMINANT
TRANSPORT TOWARD THE SE.  SIGMET SUGGESTS CLOUD
TO FL380...BUT THIS SEEMS HIGH WITHOUT SEISMIC
SUPPORT... ...GALLINA

NEXT ADVISORY: WILL BE ISSUED BY 20070524/1815Z