FVXX20 KNES 292302
VOLCANIC ASH ADVISORY
ISSUED: 20060829/2302Z   VAAC: WASHINGTON

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

SUMMIT ELEVATION: 3002 FT (915 M)

ADVISORY NUMBER: 2006/472

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

ERUPTION DETAILS: DOME COLLAPSE AROUND 29/2140Z

OBS ASH DATE/TIME: 29/2215Z

OBS ASH CLOUD: SFC/FL120 N1701 W06206 - N1640
W06211 - N1658 W06226 - N1701 W06206 MOVING N 10
KNOTS. SFC/FL300 10NM WIDE LINE BETWEEN N1641
W06210 - N1646 W06156. ASH IS MOVING E 15 KNOTS. 

FCST ASH CLOUD +6H: 30/0430Z SFC/FL120 N1738
W06149 - N1634 W06202 - N1629 W06233 - N1734
W06307 - N1738 W06149 SFC/FL300 25NM WIDE LINE
BETWEEN N1716 W06033 - N1641 W06210. 

FCST ASH CLOUD +12H: 30/1030Z SFC/FL120 N1852
W06038 - N1758 W06021 - N1633 W06152 - N1619
W06252 - N1810 W06335 - N1852 W06038 SFC/FL300 NO
VA EXP.

FCST ASH CLOUD +18H: 30/1630Z NOT AVBL.

REMARKS: IN IMAGERY AT 2215Z A YET HIGHER CLOUD
COULD BE SEEN MOVING EAST FROM THE ISLAND.  THE
OBSERVATORY IS UNABLE TO SEE DUE TO CLOUDS AND
RAIN. THE AIRCRAFT TOWER ON ANTIGUA ESTIMATED THE
HEIGHT OF THE CLOUD TO AROUND FL300 AND MOVING
EAST.  THIS AGREES WITH THE WINDS FORECAST AT
THAT LEVEL. THIS HIGHER CLOUD COULD BE A WEATHER
CLOUD OR ONE AS A RESULT OF AN ASHFLOW OUT INTO
THE OCEAN CONSISTING THEN OF MOSTLY STEAM.  IN
EITHER CASE THIS CLOUL COULD DISSIPATE WITHIN 12
HOURS.   ...SWANSON

NEXT ADVISORY: WILL BE ISSUED BY 20060830/0500Z

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