FVXX20 KWBC 041351
VOLCANIC ASH ADVISORY
ISSUED: 2004JUL04/1351Z   VAAC: WASHINGTON

VOLCANO: MASAYA 1404-10
LOCATION: N1158W8610   AREA: NICARAGUA

SUMMIT ELEVATION: 2083 FT (635 M)

ADVISORY NUMBER: 2004/001

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

ERUPTION DETAILS: ASH OR STEAM PLUME FIRST VISIBLE
AT 1215Z

OBS ASH DATE/TIME: 4/1315Z

OBS ASH CLOUD: SFC/FL050 3NM WIDE LINE BETWEEN
N1156W08616 - N1158W08610. ASH IS MOVING SW 10-20
KNOTS. 

FCST ASH CLOUD +6H: NOT AVBL

FCST ASH CLOUD +12H: NOT AVBL

FCST ASH CLOUD +18H: NOT AVBL

REMARKS: THE FIRST VISIBLE SATELLITE IMAGERY OF
THE MORNING SHOWS A NARROW PLUME EXTENDING FROM
MASAYA TOWARD THE SOUTHWEST.  THE PLUME COULD BE
ASH OR STEAM OR A MIX.  AT 1315Z THE PLUME EXTENDS
ABOUT 12 KM FROM THE SUMMIT.   ...

NEXT ADVISORY: WILL BE ISSUED BY 2004JUL04/1945Z

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