FVXX21 KWBC 041200
VOLCANIC ASH ADVISORY
ISSUED: 2002NOV04/1200Z VAAC: WASHINGTON
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VOLCANO: REVENTADOR 1502-01
LOCATION: S0004W07739    AREA: ECUADOR
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SUMMIT ELEVATION: 12139FT (3700M)
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ADVISORY NUMBER: 2002/007
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INFORMATION SOURCE: GOES-8 IMAGERY. GFS MODEL WIND FORECAST.
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ERUPTION DETAILS: CONTINUOUS ERUPTION SINCE 03/1245Z.
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OBS ASH DATE/TIME: 04/1115Z
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OBS ASH CLOUD: SFC/FL550 N0011W07716 S0049W07722 S0210W07441
S0208W07219 S0021W07217 N0035W07512 MOVING E TO SE AROUND 30 KTS.
SFC/FL350 N0008W07735 N0136W08307 N0032W08437 S0006W08437
S0118W0859 S0056W07739 MOVING W AROUND AT 20 KTS.
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FCST ASH CLOUD+6H: SEE SIGMETS AND VAFTAD.
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REMARKS: SATELLITE IMAGERY SHOWS THE HIGH LEVEL ASH ESTIMATED TO
FL550 DETACHED FROM THE VOLCANO AROUND 0700UTC MOVING TO THE E
AND SE AROUND 30 KNOTS AND BECOMING MORE DIFFUSE WITH TIME. A HOT
SPOT HAS BEEN DETECTED AT SUMMIT AREA SINCE 0715Z. THE LOWER ASH
TO ESTIMATED FL350 CONTINUES TO MOVE WEST AND EXTENDS OFF THE
COAST AROUND 260 NMI. ASH BOUNDARIES ARE DIFFICULT TO DISCERN DUE
TO THE PRESENCE OF METEOROLOGICAL CLOUDS AND THE HIGH LEVEL ASH
BECOMING MORE DIFFUSE THEREFORE ASH MAY EXIST OUTSIDE OF THE
BOUNDARIES DESCRIBED ABOVE. THERE IS ALSO A POSSIBLE MIXTURE OF
ASH FROM THE ERUPTION OF GUAGUA PICHINCHA AT 04/0215Z. OVERALL
THE ERUPTION APPEARS LESS VIGOROUS IN IMAGERY AT 1115Z.   
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NEXT ADVISORY: WILL BE ISSUED BY 2002NOV04/1800Z.
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NNNN"Attached Graphic Map Depicting Ash Only" 

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