FVXX21 KWBC 171813
VOLCANIC ASH ADVISORY
ISSUED: 2004MAR17/1800Z   VAAC: WASHINGTON

VOLCANO: SOUFRIERE HILLS 1600-05
LOCATION: N1643W06211   AREA: W.INDIES

SUMMIT ELEVATION: 3002 FT (915 M)

ADVISORY NUMBER: 2004/52

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

ERUPTION DETAILS: CONTINUOUS ASH VENTING.

OBS ASH DATE/TIME: 17/1715Z.

OBS ASH CLOUD: SFC/FL100 4 NM LINE BETWEEN N1643W06211 -
N1659W06244.  ASH IS MOVING NW 15-20 KNOTS.  SFC/FL050 17 NM
LINE BETWEEN N1643W06211 - N1703W06348 - N1717W06523.  ASH
IS MOVING W 20-25 KNOTS.

FCST ASH CLOUD+6H: NOT AVBL

FCST ASH CLOUD+12H: NOT AVBL

FCST ASH CLOUD+18H: NOT AVBL

REMARKS: SATELLITE IMAGERY THROUGH 1715Z INDICATED TWO ASH
PLUMES.  THE FIRST PLUME WAS ESTIMATED TO FL100 AND EXTENDED
APPROXIMATELY 37 NM TO THE NORTHWEST OF THE SUMMIT.  A PILOT
REPORT AT 18Z CONFIRMED THIS HEIGHT ASSIGNMENT.  THE SECOND
LONGER PLUME WAS ESTIMATED TO FL050 AND EXTENDED FOR
APPROXIMATELY 187 NM TO THE WEST OF THE SUMMIT.

SURFACE OBSERVATIONS FROM PONCE AND SAN JUAN PUERTO RICO
HAVE REPORTED ASH FOR THE LAST SEVERAL HOURS.  THE
OBSERVATION FROM SAN JUAN INDICATED THE ASH WAS TO THE
DISTANT SOUTHEAST TO SOUTHWEST AND MOVING NORTHWEST HOWEVER. 
TURK     

NEXT ADVISORY: WILL BE ISSUED BY 2004MAR18/0000Z.

NNNN"Attached Graphic Map Depicting Ash Only" 

"Graphic Map Depicting Ash"