FVXX20 KWBC 282156
VOLCANIC ASH ADVISORY
ISSUED: 2003NOV28/2200Z VAAC: WASHINGTON

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

SUMMIT ELEVATION: 16480 FT (5023 M)

ADVISORY NUMBER: 2003/543

INFORMATION SOURCE: GOES-12 IMAGERY. AVN MODEL WINDS
FORECAST. 

ERUPTION DETAILS: OCCASIONAL ASH EMISSIONS

OBS ASH DATE/TIME: 28/2115Z
               
OBS ASH CLOUD: SFC/FL230 6 NM WIDE LINE BETWEEN S0128W07826
- S0122W07851.  ASH IS MOVING W 15-20 KNOTS.

FCST ASH CLOUD+6H: NOT AVBL
FCST ASH CLOUD+12H: NOT AVBL
FCST ASH CLOUD+18H: NOT AVBL

REMARKS: CLOUDS HAD CLEARED SUFFICIENTLY BY 2115Z TO REVEAL
A 25 NM LONG PLUME EXTENDING TO THE WEST NORTHWEST OF THE
SUMMIT.  THE HEIGHT ASSIGNMENT IS DIFFICULT TO ASCERTAIN
SINCE THE WIND DIRECTION IN THE MODEL DATA DOES NOT REFLECT
WHAT HAS BEEN OBSERVED IN SATELLITE IMAGERY.  TURK
 
NEXT ADVISORY: WILL BE ISSUED BY 2003NOV29/0400Z.
                                        
NNNN
"Attached Graphic Map Depicting Ash Only" 

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