FVXX21 KNES 201213
VOLCANIC ASH ADVISORY
ISSUED: 2006MAY20/1213Z   VAAC: WASHINGTON

VOLCANO: SOUFRIERE HILLS 1600-05
LOCATION: N1643 W06210   AREA: W_INDIES

SUMMIT ELEVATION: 3002 FT (915 M)

ADVISORY NUMBER: 2006/368

INFORMATION SOURCE: GOES-12. GFS WINDS. MONTSERRAT
OBSERVATORY. 

ERUPTION DETAILS: DOME COLLAPSE STARTING AT ABOUT
11Z

OBS ASH DATE/TIME: 20/1145Z

OBS ASH CLOUD: SFC/FL500 N1700 W06200 - N1644
W06152 - N1632 W06156 - N1625 W06212 - N1628
W06225 - N1638 W06232 - N1650 W06231 - N1700
W06222 - N1700 W06211 - N1700 W06200 MOVING SW
20-30 KNOTS. SFC/FL350 N1637 W06232 - N1625 W06214
- N1611 W06231 - N1625 W06244 - N1637 W06232
MOVING SW 20-30 KNOTS. 

FCST ASH CLOUD +6H: 20/1800Z 

FCST ASH CLOUD +12H: 21/0000Z 

FCST ASH CLOUD +18H: 21/0600Z 

REMARKS: A LARGE AREA OF RAPIDLY EXPANDING THICK
ASH CAN BE SEEN MOVING OUT IN ALL DIRECTIONS AS A
RESULT OF A DOME COLLAPSE THAT BEGAN AT
APPROXIMATELY 11Z.  UPPER AIR PATTERNS SUGGEST
THAT THE BULK OF THE ASH WILL BEGIN MOVING TO THE
SOUTHWEST . ...TURK

NEXT ADVISORY: WILL BE ISSUED BY 2006MAY20/1815Z

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