FVXX20 KNES 201911
VOLCANIC ASH ADVISORY
ISSUED: 2006MAY20/1909Z   VAAC: WASHINGTON

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

SUMMIT ELEVATION: 3002 FT (915 M)

ADVISORY NUMBER: 2006/370

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

ERUPTION DETAILS: DOME COLLAPSE STARTING
APPROXIMATELY 11Z

OBS ASH DATE/TIME: 20/1845Z

OBS ASH CLOUD: SFC/FL070 11NM WIDE LINE BETWEEN
N1641 W06306 - N1641 W06213. ASH IS MOVING W 10-15
KNOTS. SFC/FL320 N1714 W06639 - N1707 W06308 -
N1601 W06307 - N1602 W06640 - N1714 W06639 MOVING
W 15-25 KNOTS. SFC/FL550 N1601 W06545 - N1558
W06259 - N1210 W06552 - N1356 W06745 - N1601
W06545 MOVING SW 40-50 KNOTS. 

FCST ASH CLOUD +6H: 21/0100Z SFC/FL500 N1551
W06720 - N1355 W06423 - N0907 W06823 - N1143
W07128 - N1551 W06720 SFC/FL300 N1755 W06756 -
N1727 W06425 - N1556 W06419 - N1558 W06813 - N1755
W06756 SFC/FL070 11NM WIDE LINE BETWEEN N1642
W06214 - N1622 W06314. 

FCST ASH CLOUD +12H: 21/0700Z SFC/FL450 N1508
W06907 - N1223 W06550 - N0637 W07147 - N1045
W07410 - N1508 W06907 SFC/FL250 N1842 W06926 -
N1758 W06611 - N1557 W06635 - N1603 W06931 - N1842
W06926 SFC/FL070 11NM WIDE LINE BETWEEN N1640
W06216 - N1620 W06310. 

FCST ASH CLOUD +18H: 21/1300Z SFC/FL400 N1444
W07010 - N1123 W06656 - N0555 W07346 - N1002
W07637 - N1444 W07010 SFC/FL250 N1919 W07029 -
N1829 W06715 - N1558 W06740 - N1607 W07053 - N1919
W07029 SFC/FL070 11NM WIDE LINE BETWEEN N1700
W06312 - N1641 W06212. 

REMARKS: SATELLITE IMAGERY INDICATED THAT ASH TO
FL550 WAS RACING TO THE SOUTHWEST AT 50 KNOTS
WHILE LOWER LEVEL ASH TO FL320 WAS MOVING TOWARDS
THE WEST AT 15-25 KNOTS.  THE VOLCANO CONTINUES TO
EMIT ASH CONTINUOUSLY TO FL070.  THIS LOW LEVEL
ASH WAS MOVING WEST. ...TURK

NEXT ADVISORY: WILL BE ISSUED BY 2006MAY21/0115Z

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