FVXX20 KWBC 221313 CCA
VOLCANIC ASH ADVISORY -CORRECTION
ISSUED: 2004JAN22/1300Z VAAC: WASHINGTON

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

SUMMIT ELEVATION: 16480 FT (5023 M)

ADVISORY NUMBER: 2004/077

INFORMATION SOURCE: GOES-12 IMAGERY. GUAYAQUIL MWO SIGMET.

ERUPTION DETAILS: GAS AND ASH EMISSIONS.

OBS ASH DATE/TIME: 22/1245Z

OBS ASH CLOUD: SFC/FL230 S0128W07826 - S0121W07819 -
S0121W07751 - S0138W07752 - S0153W07807 - S0128W07826 MOVING
TO E-S 5-10 KNOTS.
               
FCST ASH CLOUD+6H:  NOT AVBL            
FCST ASH CLOUD+12H: NOT AVBL   
FCST ASH CLOUD+18H: NOT AVBL

REMARKS: CORRECTION/UPDATE...BASED ON NEWEST IMAGE
1245Z...ASH APPEARS TO BE FANNING OUT TOWARD THE SOUTH AS
WELL NOW...A VERY BRIGHT HOTSPOT WAS OBSERVED IN THE 1115Z
GOES CHANNEL 2 IMAGE AT TUNGURAHUA. AT THE SAME TIME SFC
OBSERVERS REPORTED A NEW ERUPTIVE CLOUD TO FL230 MOVING NW.
SINCE THEN THE FIRST VISIBLE IMAGES HAVE COME IN.  THERE IS
A HIGH ABUNDANCE OF HIGH CIRRUS CLOUDS IN THE AREA...BUT AS
OF THE 1215Z IMAGE AN AREA OF VERY DENSE ASH CAN BE SEEN
FROM THE SUMMIT TO 10 NM  EAST OF THE SUMMIT.  AN AREA OF 
LESS DENSE ASH APPEARS AS A FAN PATTERN ABOUT 40 NMI TO THE
EAST THRU TO THE SOUTH OF THE SUMMIT. THE ASH CLOUDS DO NOT
CORRESPOND WITH FORECAST WIND INFORMATION OR THE INITIAL SFC
REPORT OF NW MOVEMENT BUT ARE DEFIANTLY MOVING TOWARD THE
EAST.   

NEXT ADVISORY: WILL BE ISSUED BY 2004JAN22/1900Z.

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