FVXX21 KWBC 110612
VOLCANIC ASH ADVISORY
ISSUED: 2004MAR11/0630Z   VAAC: WASHINGTON

VOLCANO: SOUFRIERE HILLS 1600-05
LOCATION: N1671W06218   AREA: W_INDIES

SUMMIT ELEVATION: 3002 FT (915 M)

ADVISORY NUMBER: 2004/25

INFORMATION SOURCE: GOES-12 IMAGERY. UPPER AIR SOUNDING. 

ERUPTION DETAILS: ASH OBSERVED STARTING AT 09/1130Z.

OBS ASH DATE/TIME: 11/0345Z.

OBS ASH CLOUD: SFC/FL050 11 NM WIDE LINE OF ASH EXTENDING
BETWEEN N1671W06218 - N1654W06328.  ASH IS MOVING W 10-20
KNOTS.

FCST ASH CLOUD+6H: NOT AVBL

FCST ASH CLOUD+12H: NOT AVBL

FCST ASH CLOUD+18H: NOT AVBL

REMARKS: SATELLITE IMAGERY THROUGH 0345Z SHOWED A POSSIBLE
ASH PLUME EXTENDING APPROXIMATELY 75 NMI TO THE WEST
NORTHWEST OF THE SUMMIT.  HOWEVER SURFACE REPORTS INDICATING
ASH SOUTH OF SAN JUAN AT 0000Z SUGGEST THAT THE ASH PLUME
LIKELY EXTENDS FURTHER NORTH AND WEST THAN CAN BE DETECTED
IN SATELLITE IMAGERY.  THE HEIGHT ASSIGNMENT HAS BEEN
LOWERED BASED ON THE 0000Z UPPER AIR SOUNDING FROM
GUADELOUPE AND IS CONSISTENT WITH PILOT REPORTS RECEIVED
YESTERDAY EVENING. TURK

NEXT ADVISORY: WILL BE ISSUED BY 2004MAR11/1230Z.

NNNN

"Attached Graphic Map Depicting Ash Only" 

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