FVXX22 KNES 232353
VOLCANIC ASH ADVISORY
ISSUED: 2006APR23/2353Z   VAAC: WASHINGTON

VOLCANO: SOUFRIERE HILLS 1600-05
LOCATION: N1642 W06210   AREA: W_INDIES

SUMMIT ELEVATION: 3002 FT (915 M)

ADVISORY NUMBER: 2006/270

INFORMATION SOURCE: GOES-12. GFS WINDS.
RADIOSONDE. 

ERUPTION DETAILS: ONGOING ASH EMISSIONS.

OBS ASH DATE/TIME: 23/2315Z

OBS ASH CLOUD: SFC/FL090 18NM WIDE LINE BETWEEN
N1644 W06213 - N1701 W06319 - N1641 W06417. ASH IS
MOVING W 15-20 KNOTS. 

FCST ASH CLOUD +6H: 24/0530Z SFC/FL090 15NM WIDE
LINE BETWEEN N1701 W06417 - N1644 W06214. 

FCST ASH CLOUD +12H: 24/1130Z SFC/FL090 15NM WIDE
LINE BETWEEN N1704 W06417 - N1645 W06214. 

FCST ASH CLOUD +18H: 24/1730Z NOT AVBL.

REMARKS: LATE DAY VISIBLE SATELLITE IMAGERY AT
2202Z SHOWED A 5 TO 18 NMI WIDE THIN ASH PLUME
EXTENDING APROXIMATELY 130 NMI TO THE
WESTNORTHWEST TO ABOUT 17.0N 63.2W AND THEN TO THE
WEST TO ABOUT 16.7N 64.4 W.  THE PLUME HEIGHT IS
SLIGHTLY LOWERED TO FL090 BASED ON OBSERVED
MOVEMENT OF ASH IN IMAGERY AND ON SOUNDING AND
MODEL WINDS.  EMBEDDED ASH ELEMENTS APPEAR TO BE
MOVING WEST 15-20 KTS.  A HOTSPOT CAN OCCASIONALLY
BE SEEN ON MULTISPECTRAL IMAGERY. ...BALDWIN

NEXT ADVISORY: WILL BE ISSUED BY 2006APR24/0600Z

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